bluuebunny/crossref_metadata_2025 huggingface dataset:
PERUBAHAN TUTUPAN LAHAN DAN LINGKUNGAN: AKUNTING SUMBERDAYA ALAM PROPINSI KALIMANTAN SELATAN
Authors: M. Bishry Rony
Published: January 2019

The natural resources utilization for economic development has became the driver of land cover and and environmental change. The policy of natural resources utilization for development in Kalimantan Selatan has changed the net value of its natural resource capital. For Kalimantan Selatan Province it is recorded that between the year of 2004 - 2007, the economic value of its natural resources has changed as much as Rp. 621,9 billion. However comparing to the need of annual budget to treat the critical land amounting to Rp 555,9 billion and the depreciation of its roads amounting to the Rp. 1 Trillion, the net value of its natural resources capital is relatively small. Key Word: natural resources and environment, regional developmentKey Word: natural resources and environment, regional development
GROWTH AND FATTY ACID COMPOSITION OF MARINE MICROALGA NANNOCHLOROPSIS sp IN MEDIUM ENRICHED WITH MAGNESIUM
Authors: Astuti J. Tri , Sriwuryandari Lies , Putro Ekoputro Agung , Sembiring T.
Published: January 2019

Micro-algae are to be an attractive way to produce bio-diesel due to high photosynthetic yields and lipid accumulation in cells. This high productivity combined with possibility to uptake CO2 stimulated its utilization as a biological mitigation method of CO2, at once as an alternative renewable source of energy. Growth characteristics and chemical composition of micro-algae can be altered by culture environment. Nutrient sufficiency,included magnesium element (Mg2+) is important factors on overall biochemical composition. In study, Nannochloropsis sp was cultivated in Erlenmeyer 250 ml containing 200 ml f/2 medium. There are three groups of treatment with different levelof magnesium (Mg2+), i.e. 0 (M0); 0.1mgL-1 (M1); and 1.0 mgL-1 (M2). All treatment was designed triplicate in batch system. Culture was then aerated continuously with sterile atmospheric air (1.5 L.min-1). Cells were harvested on 25th day after inoculation and analyzed. Data showed that Chlorophyll-a increased linearly with time and maximum at 18th days of growth period, i.e. 23.57; 26.44; and 27.74mgL-1, for M0; M1; and M2,respectively. Chlorophyll-a content decreased significantly when pH dropped to 5-6.Enrichment with Mg2+ increased the chlorophyll-a content 12.2-17.7%. Dry cell reached 375-400mgL-1 in all treatment. Lipid content of Nannochloropsis sp in control (M0) is 55.3%, higher than M1 and M2. Saturated fatty acid tends to increase from 80.70 (M0)to 96.70 (M1) and 94.53% (M2). Fatty acid of M0 and M1 was composed dominantly by palmitic acid (C16:0), i.e. 49.19-70.75% total fatty acids. Meanwhile, M2 treatment was dominantly by lauric acid (C12:0), i.e. 32.98%.Keywords: CO2 biological mitigation, chlorophyll-a, fatty acid, lipid, agnesium,microalgae, Nannochloropsis sp, photosynthesis.
AKTIVITAS AKTINOMISETES DARI BANGKA-BELITUNG KOLEKSI BIDANG MIKROBIOLOGI, PUSLIT BIOLOGI- LIPI DALAM MEMPRODUKSI ENZIM KITINASE
Authors: Soeka Yati Sudaryati , Triana Evi , Setianingrum Ninu
Published: January 2019

The aim of the research was to know the capability of actinomycetes isolate from Bangka Belitung, which stored at Microbiology-LIPI Culture Collection, in producing chitinase enzyme. This isolate which could produce chitinolitic enzyme, signed by clear zone at medium contain 1% chitine. The chitinase activity of the isolate which incubated for 1-7 days in the room temperature was analyzed by spectrophotometer in λ 584 nm. The result of this experiment was highest chitinase activities with incubated for 3 days, were 1.66 . 10-2 U/ml. Maximum chitinase activities was found at 1% starch soluble substrate 2.83 . 10-2, pH 8.0 and at 50°C condition were 9.3 . 10-2 and 12.98 .10-2 U/ml respectively.Key words : chitinase, clear zone, spectrophotometer
KEMAMPUAN Flavobacterium sp NUB1 DALAM MENGGUNAKAN ALIFATIK NITRIL UNTUK PERTUMBUHANNYA
Authors: Sulistinah Nunik
Published: January 2019

A bacteria isolate capable utilizing 1% (v/v) acetonitrile and butironitrile as thesolesource of carbon and nitrogen was isolated from industrial effluents ofPTPetrokimia-Gresik and identified as Flavobacterium sp NUB1. The bacteriaisolatewas able to grow in both acetonitrile and butironitrile at concentrationofup to 4% (v/v). The highest growth was reached at 1% concentration ofacetonitrileand butironitrile, but the bacteria isolate was not able to grow onacrilonitrile.The specific growth rate (μ) of the isolate was 0,029 h-1. Themajorobjective of this study was to explore the abilities of the isolate to utilizesomealiphatic nitriles and then further evaluate the metabolite product of thenitriledegradation.Key words: aliphatic nitrile, biodegradation, Flavobacterium sp. NUB1
PENDAYAGUNAAN DUA JENIS ZINGIBERACEAE [C. mangga (temu mangga) dan K. angustifolia (kunci menir)] SEBAGAI SUMBER BAHAN IMUNOMODULATOR SECARA IN VITRO
Authors: . Praptiwi , . Chairul
Published: January 2019

Observation of imunomodulation properties of methanol extract derive (hexane,ethyl acetate, methanol/water) of Curcuma mangga (temu mangga) and Kaempferia angustifolia (kunci menir) had been carried out by in vitro assay. It was done by determining the phagocytised activity and capacity of macrophage cells of mice (Mus musculus) peritonium inducted with Staphyllococcus epidermidis. The result showed that each fraction had different phagocytised activity and capacity. Almost all of the fractions tested improved the activity (50–96 %) and capacity macrophage cells phagocytised compared to negative control (52 dan 502) and positive control (97 dan 1076). The positive control was 1000 ug Stimuno (Phyllanthus niruri extract), while the negative control was aquadest. The ethyl acetate fraction of Z. cassumunar (bangle) had highestphagocytised activity and capacity followed by C. mangga (temu mangga) and K. Angustifolia (kunci menir). It can be concluded that there were significant differences of phagocytised activity and capacity among fraction tested.Keywords : Zingiberaceae, Curcuma mangga, Kaempferia rotunda, Zingibercassumunar, immunomodulator, phagocytised, macrophage cells.
PROFIL PERUBAHAN AMONIUM, NITRIT DAN NITRAT PADA PERCOBAAN CURAH DARI PDAM BOGOR DAN SURABAYA
Authors: Imamuddin Hartati
Published: January 2019

Nitrification is often not effective because the characters of nitrifying bacteria is always slow growing and temperature, pH, DO, amonia concentration, nitrite and C/N ratio as the limited factors. Batch experiment was operated for 6 hours, every half an hours ammonium, nitrite and nitrate were measured.The results showed that added C sourse (glucose) in medium from PDAM Bogorand Surabaya have a significant effects of ammonium degradation, nitrite and nitrate production. Degradation of ammonium in batch reactor from PDAM Bogor showed that both  naerobic and aerobic condition have a different fluctuation. Production of nitrite was stable from the middle of reaction to last of aerobic phase. In aerobic condition nitrate production is reduced to 49,21 % (+ glucose) and 60,87% (+ acetate) Batch reactor from PDAM Surabaya differ from PDAM Bogor particularly on degradation of ammonium. Added glucose as C source cause the concentration of ammonium was increased and acetate as C source showed stable with a slightly fluctuation. Nitrite and nitrate production relatively small in both C source.
KONSORSIA BAKTERI PENGURAI SIANIDA YANG DI ISOLASI DARI BUANGAN INDUSTRI PENGOLAHAN EMAS
Authors: Sulistinah Nunik , Sunarko Bambang
Published: January 2019

Bacterial consortium capable of growing and utilizing cyanide as a source of nitrogen were isolated from effluent of gold mining industry. The isolation was conducted using liquid enrichment medium with potassium cyanide and glucose as nitrogen and carbon source, respectively. These consortium could tolerate and were able to grow on KCN at concentration of up to 1000 ppm. Bacterial consortium LP3 were also able to degrade potassium cyanide and ammonium as product of the degradation. The degradation rate was 9,0μM per minute. The cyanide-degrading bacteria found in this consortium were identified as Bacillus, Corynebacterium, and Serratia.Keywords: potassium cyanide, nitrogen source, bacterial consortium LP3,degradation
DASAR-DASAR PENGOPERASIAN FOTOBIOREAKTOR SKALA LABORATORIUM MENGGUNAKAN MIKROALGAUNTUK PENYERAPAN EMISI CO2
Authors: Tjahjono Hendra , Wibowo Kusno
Published: January 2019

Fotobioreaktor adalah suatu alat yang dipergunakan dalam memproduksi mikroalga yang dapat dipegunakan untuk menyerap CO2. Kultur mikroalga pada fotobioreaktor adalah salah satu upaya untuk mengurangi emisi CO2 di atmosfer, yang merupakan bagian dari teknologi CCS (Carbon Capture and Storage). Fotobioreaktor dijalankan dengan sistem batch dalam waktu 1 siklus hidup mikroalga (10 – 12 hari). Pada tahun 2008, PTL-BPPT telah mengembangkan fotobioreaktor skala batch dengan volume 50 L untuk mengurangi emisi CO2. Dalam perancangan ini perlu dilakukan pula ujikebocoran sistem fotobioreaktor agar hasil yang dicapi benar-benar optimal. Tetapi karena kurangnya jenis mikroalga yang diujikan serta keterbatasan isolat murni adalah beberapa kendala yang dihadapi pada kegiatan perancangan ini. Dari hasil perancangan ini diharapkan didapat informasi perancangan fotobioreaktor dalam skala besar dan jenis mikroalga yang dapat menyerap emisi CO2.Kata kunci : Mikroalga, fotobioreaktor, emisi CO2
DINAMIKA DAN STATUS MUTU AIR WADUK SEI NONGSA
Authors: Garno Yudhi Soetrisno
Published: January 2019

Sei Nongsa is a reservoir in the Batam Industrial Development Area (BIDA), whichdeveloped especially for source of drinking water. This research was conducted toknow the water quality status of Sei Nongsa, and the suitability for the source of drinking water. This research revealed that the water of Sei Nongsa can not directly used for drinking water due to concentrations of detergent, Cu, Cr, Cd and Pb were higher than the national standard for drinking water. Base on this result, it was suggested that the water of Sei Nongsa need threatment for decrease the above parametersKey words: Nongsa, water quality status.
RESPON PUPUK DAUN NPK TERHADAP PERTUMBUHAN Nepenthes ventrata DAN Nepenthes neglecta
Authors: Mansur Muhammad , . Saefudin , Syarif Fauzia
Published: January 2019

Leaf NPK fertilizer experiments on pitcher plant (Nepenthes neglecta and ventrata) conducted in May 2008 to March 2009 in a greenhouse, Botany Division, Research Center for Biology-LIPI, Cibinong Science Center, Cibinong. The objective is to study the effect of leaves NPK fertilizer on the growth of the two Nepenthes species tested. Experiments using Random Complete Factorial Design with two factors, namely the two Nepenthes species and threedoses of fertilizer each treatment repeated six times. Growth parameters measured include; long shoot leaves, plant height, number of leaves, number of mature pitchers and growth pitchers. Results showed that the dose of NPK fertilizer provided (2 and 4 ml / lt) have no effect on plant height and number of leaves, but little effect on the number of mature pitchers thanthe control plants. The statistical tests also showed no interaction between the two Nepenthes species with a given dose of fertilizer on the growth of plants. Minimum-maximum temperature recorded in the greenhouse during the experiment was 22.20C and 38.50C. Meanwhile, air humidity between 43,6-64,7%.Key words: Leaf NPK fertilizer, plant growth, pitcher plant
ANALISIS KESEDIAAN MEMBAYAR JASA LINGKUNGAN DALAM PENGELOLAAN SUMBERDAYA AIR MINUM TERPADU DI INDONESIA (STUDI KASUS DAS CISADANE HULU)
Authors: Sutopo Muhammad Fauzi , Sanim Bunasor , Saukat Yusman , Mawardi Muhammad Ikhwanuddin
Published: January 2019

Ecocentrism paradigm in development are intended to ensure the sustainability of water resources in the future for future generations. The research methodology was conducted with the model approach to drinking water users willingness to pay for environmental services (YWTP). The results in Analysis Willingness to Pay in Drinking Water Management in the Upstream Watershed Cisadane illustrates that the existence of a positive response from drinking water users (entrepreneurs) to be willingness to pay for environmental services (YWTP) as payment and reward for environmental services to the public because it is influenced by the presence and the beneficiaries are significantly linearly with level of education (sig. 0.041) and Variable in YWTP education significant at 95% confidence level. Policy implications of this research that the user (downstream) is willingness to pay (WTP) for environmental services with averaging Rp1 538.65 per m3 as payment or reward for environmental services to society (upstream), so the Government (Local) PES has a potential revenue to fund conservation of Rp106.94 billion per years, but in current conditions the government only earns Rp20.57 billionper year, so that only reached 19.24%.
EMISI GAS BUANG KENDARAAN BERMOTOR BERBAHAN BAKAR GAS CAIR (LGV) DAN PERTAMAX PADA KONDISI UJI AWAL DINGIN DAN PANAS
Authors: Prawoto Prawoto
Published: January 2019

Liquid Gas Vehicle (LGV) is one of an alternative hydrocarbon fuel, which is the dominant composition are propane and butane, and now is already available in the market. With low sulfur content and high octane number, theoritically vehicle emissions using LGV are better than gasoline. But it is need a good mixture ratio of air to LGV (AFR) in the gas mixer before enter to the engine. This paper describes a study that compared emission test results from gasoline engine using LGV with standard mixer and Pertamax market fuel. The study was based on the vehicle chassis dynamometer test results according to the UN-ECE R83-04 test cycle standard on both cold and hot starts. The test results have shown that on urban cycle CO and HC emissions of Pertamax fuel was better than LGV on both cold and hot starts. Whereis on extra urban cycle CO emission of LGV fuel was better than Pertamax. NOx emission of LGV fuel was very low and practically undetected for all test condition. Utilisation of LGV fuel reduce CO2 emission in order of 15% for urban drive cycle for both cold and hot start, and in order of 9,2% for cold start and 10.5% for hot start for mixed cycle.
DAMPAK BUDIDAYA PERTANIAN INTENSIF TERHADAP KUALITAS AIR PERMUKAAN DESA KANIGORO KECAMATAN NGABLAK KABUPATEN MAGELANG
Authors: Komarawidjaja Wage
Published: January 2019

Kanigoro at Ngablak Sub-District in Magelang is one of the Villages which is topographically lower than the adjacent village in the same sub-district. The main activity of village inhabitant is farmer in intensive agriculture that is indicated by a lot of fertilizer and pesticide utilization. Therefore, the exceeding dosage of fertilizer and pesticide in plant cultivation could become an anxious environmental problem due to the high concentration of them in springs water that they called as Tuk and river water more than the quality standard of National regulation. Based on Data analysis, it can be concluded that laboratory analysis result of water quality in the village Kanigoro, generally still meet the quality standard. This is showed by the concentration of heavy metals (As, Cu, Cd, Hg, Zn and Fe) and pesticides (Aldrin, BHC, Chlordane, DDT, Dieldrin, Endrin, Heptachlor,Heptachlo epoxide, Lindane, Methoxychlor and Toxaphene), except for some points sampling contain heavy metals plumbum (Pb) exceeded water quality standard of the Minister of Health (Depkes) and Government Regulation Class I (raw water) of PP 82/2001. While the density of microbial total coliform and E. coli detected abundant compare to the water quality standard of the Minister of Health, particularly for the use of water as raw water or clean water. However, it is possible to utilize water directly for agriculture and fish farming activities and the use for drinking water after cooked first
BIODEGRADASI LIMBAH OLI BEKAS OLEH Lycinibacillus sphaericus TCP C 2.1
Authors: Basuki Witono
Published: January 2019

Mikroorganism has capability to degrade used engine oil was isolated from soil sample contaminated with used engine oil. One of the selected strain TCP C 2.1 was identified by 16s rDNA as Lycinibacillus sphaericus. The microorganism can use hydrocarbon in used engine oil as the sole carbon source and energy, also it significantly degraded almost all hydrocarbon compounds in used engine oil. With its ability the microorganism has potency to be used as a single microbe for bioremediation of soil polluted by engine oil.
MANFAAT TANAMAN SAGU (Metroxylon sp) DALAM PENYEDIAAN PANGAN DAN DALAM PENGENDALIAN KUALITAS LINGKUNGAN
Authors: Hariyanto Bambang
Published: January 2019

Sago plants is a source of carbohydrates that can be used as a source of food. With the extruder technology, sago can be made noodles. The purpose of this study is to know the utilization of sago as a provider of food and protecting the environment. Organoleptic testing sago noodles and wheat noodles to the panelists gave results not significantly different. The noodles of sago have a high resistant starch and useful for health. To make use of sago in the manufacture of noodles in the framework of implementation of the Gouverment Regulation (Per Pres) No. 22 th 2009 the need for socialization and support for raw material supplies through sago plantations. When the sago plant is developed it will be beneficial to the absorption of carbon dioxide andmaintain the sago air. Sago palm can produced 20 tonnes karbohidrat / ha. Besides sago plants will be able to keep the water around it. Sago leaf has the ability to absorbcarbon dioxide (CO2) emissions by 240 tons CO2/ha/th.
PENGARUH RADIASI SINAR GAMMA TERHADAP PERTUMBUHAN DAN PERUBAHAN FENOTIPE TUNAS IN VITRO LIDAH BUAYA (ALOE VERA)
Authors: Imelda M , Sari S , Wulansari A , Eriyandri F
Published: January 2019

Aloe vera (L.) Burm.f. of the Asphodelaceae, which probably originated in North Africa is a very short-stemmed succulent, perennial plant of 80-100 cm in height. Today, it is widely grown in the tropics worldwide. It has long been used as a traditional herbal medicine and as cosmetic materials since thousand of years BC in Egypt, China, Greece, etc. It can be used externally to treat various skin conditions and It was useful for curing diabetics, cancer, HIV, even for stress and drug addicts The biologically active components found in the juice of aloe leaves are anthraquinones, acemannan, andprostaglandins. Chunks of aloe pulp are popular as beverages in Asia. Aloe has long been propagated by splitting its off-shoots, and this may account for its narrow genetic variations. In this research, genetic variations of A. vera and A. vera var. Chinensis, were induced by gamma irradiation. In vitro shoots of Aloe were irradiated with gamma ray at the dosage of 10-60 gy, then propagated on Murashige and Skoog (MS) solid medium containing 1 mg/l BAP. The results showed that shootlets of A. vera var. Chinensis were still alive up to 40 gy but the leaves became stiffer, while A. vera only tolerated irradiation up to 20gy. At 50-60 gy, all cultures died after 2 months. Visual observation on irradiated in vitro shoots showed that new variants appeared at the dosage of 20 gy, although in very low frequencies. Leaves became half green and half white in A. vera and white-green-white in A. vera var. Chinensis. Confirmation whether those variants were of genetic or morphological origin needs to be further investigated.
ISOLASI, IDENTIFIKASI, DAN SKRINING JAMUR ENDOFIT PENGHASIL AGEN BIOKONTROL DARI TANAMAN DI LAHAN PERTANIAN DAN HUTAN PENUNJANG GUNUNG SALAK
Authors: Suciatmih Suaciatmih , Yuliar Yuliar , Supriyati D
Published: January 2019

Isolation of endophytic fungi was done to find alternative microorganisms as biocontrol agents against Rhizoctonia solani Kuhn, a soil borne pathogen on many agriculturalcrops. The research objectives were 1) to isolate and identify endophytic fungi colonize plants growing on agricultural and Mount Salak supporting forest lands in the Villages of Parakan Salak and Cimalati, Sukabumi; and 2) to screen for their biocontrol agent activity againt R. solani. Diameter of R. solani was measured on day 2 after inoculation, and its percent inhibition of growth by endophytic fungi is calculated using the formula Skidmore & Dickinson (1976). The results indicated that 214 isolates of endophytic fungi were isolated from 96 plant species that growing in both places. Endophytic fungi isolated including in the group of Aspergillus, Cladosporium, Colletotrichum, Curvularia, Drechslera, Fusarium, Guignardia, Mucor, Nigrospora, Paecilomyces, Penicillium, Pestalotiopsis, Phoma, Phomopsis, Rhizoctonia, and endophytic fungi that have not been identified. Of the 214 fungal isolates tested, 39 isolates (18.22 %) could inhibit the growth of R. solani from 10.18 % to 58.99 % with a percent inhibition. The highest growth inhibition of R. solani were shown respectively by an unidentified fungus isolatedfrom Hyptis capitata Jack (58.99%), Cladosporium sp. isolated from jeruk bali (Citrus grandis (L.) Osbeck) (55.42%), Pestalotiopsis sp. isolated from pine apple (Ananas comosus (L.) Merr.) (53.85 %), and Paecilomyces lilacinus (Thom) Samson isolated from banyan (Ficus benyamina L.) (51.81%)
EVALUASI POPULASI MIKROBA FUNGSIONAL PADA PUPUK ORGANIK KOMPOS (POK) MURNI DAN PUPUK ORGANIK GRANUL (POG) YANG DIPERKAYA DENGAN PUPUK HAYATI
Authors: Sahwan Firman Laili , Wahyono Sri , Suryanto Feddy
Published: January 2019

Organic fertilizer is a fertilizer that is expected to improve the physical, chemical, and biological properties of the agricultural land resources, which is undergoing fertilityand productivity degradation. Compost is one of the organic fertilizers produced from the biological decomposition process by a consortium of microorganisms, includingfunctional microorganisms. To make it easier for farmers and efficiency in the use of organic fertilizer, organic fertilizer will be further processed into granular form and is called Granules Organic Fertilizer (POG). In the manufacturing process, namely at the time of drying using a rotary dryer, was suspected of using high temperatures to kill microbes (including functional microbial) that naturally exist in the organic compost fertilizer (POK), which is the raw material for POG. To increase the presence of functional microbial populations, the POG which has produced before, then added with bio fertilizer that is rich in microbial functional. This research was conducted to determine and evaluate the total microbial population and functional microbial in pure POK, compared with the total microbial population and functional microbial in the POG are enriched with bio-fertilizer. The results showed: There is an indication to the higher number of total microbial population in the POK, who showed by total fungi population, compared with the POG. The number of functional microbial population, as shown by bacterial phosphate solvent and non-symbiotic bacteria that are fastening N in POK, very high and already meets the criteria to be called as a biological fertilizer. The amount is not significantly different compared to the POG that is already enriched with bio fertilizer that is rich in microbial functional. There is an indication of the influence of high heating using a rotary dryer, in the POG manufacturing process against the decreasing of the amount of microbialpopulation that are resulting in the POG, including functional microbial
AKUNTING SUMBERDAYA ALAM LAHAN DAN LINGKUNGAN: KABUPATEN KUTAI TIMUR
Authors: Bishry Rony
Published: January 2019

he natural resources utilization for economic development has become the driver of land cover and environmental change. Logging and coal production have created dryland. The policy of natural resources utilization for development in Kutai Timur Regency has changed the net value of its natural resource capital. For Kutai Timur Regency it is recorded that between the year of 2004 - 2006, the income of its natural resources was as much as Rp. 13,39 Trillion. The total change of the economic value of its resource has also created the need for the environmental cost of Rp. 191 Billion annually since around 95,742 ha has changed into dry land. However comparing to the need of annual budget to treat the critical land, the net value of its natural resources capital is relatively high.
ANALISIS INDEKS KUALITAS AIR LINGKUNGAN PERTAMBANGAN BATUBARA PT KPC SUBDAS SANGATTA KALIMANTAN TIMUR
Authors: Komarawidjaja Wage
Published: January 2019

Water quality index (IKA) is one tool to quickly predict the environmental quality status of an ecosystem or region to obtaining an alternative of the future management. Toanalyze the status of these indices utilize only data of environmental parameters that have been established as a key parameter determining the IKA. From the analysis of the mining area of PT KPC IKA with key parameters TDS, DO, COD, nitrogen (N) and phosphorus. (P) derived from the water quality of agricultural ecosystems, industry / mines and residential showed an index value of less well with thecategory (54.6163) on the interval 40 ≤ IKA <60. The low index value is proportional to the low value of ecosystem quality index industry / mining IKA (I) with a value of 45.82with categories of less well on the interval 40 ≤ IKA <60. Consider, that the index value of ecosystem quality residential IKA (H) and agricultural ecosystem quality index IKA (P) with good and excellent categories, then the ecosystem of industry / mining is the focus that needs to be considered for improved management efforts.
KUALITAS KOMPOS SAMPAH RUMAH TANGGA YANG DIBUAT DENGAN MENGGUNAKAN ”KOMPOSTER” AEROBIK
Authors: Sahwan Firman , Wahyono Sri , Suryanto Feddy
Published: January 2019

Upaya pembuatan kompos sampah rumah tangga dengan menggunakan ”komposter”, dapat membantu upaya pengelolaan sampah kota dalam bentuk: mengurangi jumlahtimbulan sampah di sumber, mengurangi biaya transportasi pengangkutan sampah dan dapat memperpanjang umur TPA. Untuk itulah penelitian ini dilakukan dengan tujuan mengevaluasi efektivitas proses pengomposannya, sekaligus mengetahui kualitas kompos yang dihasilkan. Parameter analisis kualitas kompos yang digunakanadalah: keberadaan mikroba kontaminan, tingkat kematangan, serta kesesuaian dengan Permentan No. 28 of 2009 atau SNI Kompos 2004. Hasil penelitian menyimpulkan bahwa proses pengomposannya berjalan dengan baik dan cukup efektif, serta menggambarkan proses dekomposisi secara aerobik. Adapun produk kompos yang dihasilkan berkualitas baik, bebas dari mikroba kontaminan (patogen), memenuhi persyaratan kompos matang dan secara umum sesuai dengan parameter yang dipersyaratkan oleh Permentan Pupuk Organik atau SNI Kompos 2004.
PENELITIAN TINGKAT TOKSISITAS PRODUK KOMPONEN BANGUNAN DARI BAHAN DRILL CUTTING
Authors: Husin Andriati Amir , Lasino Lasino , Sugiharto Bambang
Published: January 2019

Sumber daya panas bumi adalah salah satu sumber energi paling potensial di dunia. Dan salah satu produk samping panas bumi aktivitas pengeboran sumur adalah dalambentuk pasir berlumpur. Ini berisi bahan kimia tertentu yang dapat mencemari lingkungan jika tidak ditangani dan direncanakan secara baik. Produk penyebaranPemotonganBor termasuk dalam kategori limbah berbahaya dan beracun berdasarkan Peraturan Pemerintah no 85 (1999). Namu demikian produk sampai tersebut dapat digunakankembali dengan ketentuan bahwa logam berat yang terkandung kontaminan berada pada tingkat yang dapat diterima berdasarkan uji kronis sub. Hal ini karena pemotongan bor tidak aman bagi organisme hidup dan kesehatan manusia. Dalam penelitian ini kami menganalisis kontaminasi logam berat dengan mengekstraksi TCLP dari beberapa komponen bangunan seperti blok beton berongga, genteng beton, paving blok dan panel beton. Pemotongan bor konten yang digunakan adalah 60% untuk blok betonberongga, genteng beton, panel beton dan 40% untuk paving block. Hasil penelitian menunjukkan bahwa kandungan logam berat dalam komponen bangunan yang diuji berada di bawah tingkat batas toleransi dan karena itu dapat diterima.
POTENSI BAKTERI DENITRIFIKASI DALAM BIODEGRADASI CARBARYL PADA KONDISI ANAEROBIK
Authors: Agustiyani Dwi
Published: January 2019

Potensi bakteri denitrifikasi dalam mendegradasi senyawa Carbaryl dalam kondisi anaerobik dipelajari. Penelitian diawali dengan aklimatisasi kultur mikroba yang berasaldari tanah pertanian tercemar pestisida di daerah Lembang dan Dieng, dalam media denitrifikasi yang mengandung Carbaryl. Dari hasil aklimatisasi diperoleh 3 kultur mikrobadenitrifikasi (CL, CD dan D3) yang mengindikasikan mampu tumbuh pada media yang mengandung 1000 ppm Carbaryl. Hasil isolasi dari ketiga kultur tersebut diperoleh 10 isolat bakteri murni. Enam isolat bakteri (CL1, CL2, CD1, CD2, D3.1, D3.2) diuji aktivitas denitrifikasi dan kemampuan degradasi Carbaryl pada kondisi anaerobik. Hasilpengujian menunjukkan bahwa keenam isolat bakteri mampu tumbuh dan melakukan aktivitas denitrifikasi serta memperlihatkan indikasi mampu mendegradasi Carbaryl,dengan terbentuknya senyawa 1-Naphtol. Reaksi denitrifikasi dan degradasi Carbaryl berlangsung secara simultan. Ada dua pola perubahan Carbaryl oleh bakteri denitrifikasi yang diuji, yaitu bakteri denitrifikasi yang hanya mampu merombak Carbaryl menjadi 1-Naphthol dan bakteri denitrifikasi yang dapat merombak Carbaryl menjadi 1-Naphthol dan senyawa tertentu lainnya (belum terdeteksi).
STUDI DEGRADASI DIBENZOTHIOPHENE OLEH Sphingomonas paucimobilis BAKTERI INDIGENOUS MUARA BARU-TELUK JAKARTA
Authors: Sulistinah Nunik , Riffiani Rini
Published: January 2019

Dibenzothiophen (DBT) adalah salah satu senyawa Hidrokarbon Aromatik Polisiklik yang dikenal beracun di lingkungan. Sebagian besar PAH bersifat karsinogenik dan persisten di lingkungan. Teknik Biostimulation digunakan untuk mengisolasi bakteri indigen dari Muara Baru yang mampu mendegradasi DBT. Tujuan utama dari penelitian ini untuk mengisolasi dan meneliti bakteri laut yang dipilih untuk mendegradasi senyawa DBT. Hasil penelitian menunjukkan bahwa bakteri isolat M4 (Sphingomonas paucimobilis) dapat tumbuh optimal pada 30 oC dengan 1,6 X 109 sel / ml dan waktu penggandaan (td) adalah 6 jam. Pertumbuhan Sphingomonas paucimobilis pada konsentrasi 2% NaCl adalah 2,6 X 109 dengan Waktu penggandaan 11 jam. Proses biodegradasi DBT menunjukkan bahwa Km dan Vmaks untuk KNO3 adalah 0,0307 jam-1 dan 12,27 mglt-1 h-1. KNO 3 dan NH4NO3 adalah sumber yang cocok dari nitrogen untuk mempercepat kecepatan biodegradasi Sphingomonas paucimobilis. Efisiensi degradasi mereka adalah 62,5% dan 57,6%.
PENGOLAHAN EFLUEN REAKTOR FIXED BED SECARA KOAGULASI
Authors: Indriyati Indriyati , Diyono Diyono
Published: January 2019

effluent dari reaktor fixed bed pengolahan limbah cair pembuatantahu masih mengandung organik tinggi dan memiliki banyak padatan tesusensi , sehingga warnaair limbah tidak cukup jernih , dan sulit diturunkan secara anaerob. Tujuan percobaan dari proses ini dalah untuk menghasilkan air limbah untuk embuatan tahu menjadi lebihjernih. berdasarkan alasan diatas, maka dilakukan pengolahan limbah cair dengan menggunakan proses koagolasi menggunakan Alumunium sulfat dan Ca (OH)2 yang ditambahkan ke efluen reaktor fixed bed dengan variasi dosis sulfat Alumunium : mulai dari 0,5; 1,0 ; 1,5; 2,5; 5,0; 7,5 gramdan batuan Ca (OH)2. Akan meningkatkan alkanitas, sampai PH 8.0. Hasil percobaan menunjukan bahwa, percobaan yang menggunakan koagulan Almunium sulfat secukupnya dan penambahan Ca(OH)2 untuk menstabilkan pH, sehingga diperoleh kualitas hasil pengolahan yang baik, dan sesuai dengan perfomance efluen reactor fixed bed yang jernih. Selain itu, aplikasi Ca(OH)2 dapat membantu meningkatkan konerja koagulan yang dapat dilihat dari ukuran flok sedimentasi dari effluen anaerob
PENURUNAN BAHAN ORGANIK AIR LIMBAH INDUSTRI PERMEN DENGAN MENGGUNAKAN REAKTOR PACKED BED BERDASARKAN VARIASI WAKTU TINGGAL
Authors: Titiresmi Titiresmi
Published: January 2019

Kandungan organik tinggi dari air limbah akan efisien dihilangkan digunakan bioreaktor gabungan, proses aerobik diikuti dengan proses aerobik. Dalam penelitian ini skalalaboratorium percobaan bioreaktor packed bed didirikan. Air Limbah yang dipasang dalam penelitian ini diperoleh dari buangan dari air limbah proses aerobik PT Van MelleIndonedia. Karakteristik air limbah yang keruh, BOD / COD rasio 0,3-0,5 dan kandungan COD dalam kisaran 10.000 - 30.000 mg / L. Dari sudut pandang biodegradabilitas,pengobatan mikrobiologi akan memberikan keuntungan lebih dari pada kimia atau pengolahan fisik. Langkah awal yang meliputi pengayakan dan aklimatisasi dijalankanuntuk memperoleh populasi mikroba yang sesuai didalam bioreaktor packed bed. Langkah-langkah awal digunakan sistem batch sehingga mikroba yg berkembang akanmelekat padauntuk mendukung bahan. Setelah itu mikroba yang tumbuh menyesuaikan diri dengan mengalirkan air limbah secara perlahan dan terus-menerus dan kolom.Percobaan menunjukkan bahwa efisiensi tertinggi, 96,55%, diperoleh waktu retensi selama 24 jam. Efisiensi ini menurun bersama dengan waktu retensi dan peningkatan kandungan organik. Hasil uji bioreaktor packed bed penuh dengan bahan pendukung cincin plastik mampu menghilangkan kandungan organik lebih dari 80%.
KARAKTERISASI SUMBERDAYA LAHAN DAN PEWILAYAHAN KOMODITAS UNGGULAN PERKEBUNAN DI PULAU BURU
Authors: Mubekti Mubekti
Published: January 2019

Evaluasi karakter lahan dan pewilayahan komoditas perkebunan berdasarkan kesesuaian lahan telah dilakukan di Pulau Buru, dimana wilayah ini merupakan salahsatu pulau utama di Provinsi Maluku yang mempunyai potensi sumberdaya lahan yang tinggi. Namun demikian karakter lahan sangat bervariasi dari satu tempat ketempat lainnya karena adanya factor-faktor pembatas di dalamnya. Dalam metodologi dijelaskan secara singkat tentang evaluasi lahan, kesesuaian lahan dan pewilayahankomoditas perkebunan. Kemudian bahasan hasil studi di Pulau Buru disajikan meliputi penggunaan, karakter, dan kesesuaian lahan, serta pewilayahan komoditas perkebunan. Sebagian besar wilayah studi masih ditutupi oleh hutan, dan hanya sebagian kecil yang dimanfaatkan sebagai lahan garapan. Dareah studi terdapat 5 fisiografi terbagi menjadi 15 unit lahan. Sebagian besar lahan masuk dalam katagori tidak sesuai (N), dan hanya sebagian kecil yang masuk katagori sesuai (S). Secara alami yang menjadi factor pembatas lahan adalah kemiringan curam, ketinggian tempat, kedalaman tanah yang dangkal, dan ketersediaan air. Total luasan lahan yang potensial untuk dikembangkansebagai lahan perkebunan adalah 187.902 hektar, dan sekitar 50 % dari lahan tersebut terletak di hutan yang dapat dikonversi.
PERAN ADIPURA PADA PELAKSANAAN SISTEM PENGELOLAAN SAMPAH DI INDONESIA
Authors: Sidik Muhamad Ansorudin
Published: January 2019

Solid waste management is a system involving all subsystems of management such as institutional, law, financing, operational, and community participation. Waste law which shelters the solid waste management is the umbrella of all local regulation (Perda). But in fact, its implementation and aplication have not run well as expected. Using a simple analisys method from personal experience as an Adipura award appraiser, thewriter tried to reveal the strengths and weaknesses in waste management all this time. The result shows that local governments, in general, haven’t considered the wastemanagement subsystems integratedly in handling the municipal garbage. They usually see the problem partially, not as an integrated system which includes all the subsystems. Municipal waste management should not become a proses which is independent fromthe other subsystems. It is recommended that the head of regional government see the waste management.
MODEL PENGENDALIAN LINGKUNGAN DALAM PEMBANGUNAN KOTA BARU BERKELANJUTAN
Authors: Hadi Syamsul , Pramudya Bambang , Sutjahjo Surjono Hadi , Hadi Setia
Published: January 2019

AbstrakPembangunan kota baru diharapkan dapat memecahkan masalah seperti pengurangan migrasi ke kota-kota besar, pembangunan ekonomi regional, dll, tetapi kenyataannya tidak sesuai dengan tujuan. Perubahan lingkungan adalah salah satudampak yang tidak dipertimbangkan dengan hati-hati ketika kota baru direncanakan dan dikembangkan. Tujuan penelitian ini untuk merumuskan model pengendalian lingkungan selama pembangunan kota baru, untuk mencapai tujuan keberlanjutan.Studi kasus penelitian dilakukan di kota baru Bumi Serpong Damai (BSD) di Propinsi Banten, Indonesia. Penelitian ini menganalisis kualitas udara dan air dan kemudian membandingkan keduanya dengan kualitas lingkungan standar, analisis keberlanjutan BSD menggunakan skala multidimensional (MDS), dan merumuskan parameter kuncimenggunakan “prospective tools”, model mengembangkan pengendalian lingkungan menggunakan sistem dynamic, dan merumuskan prioritas kebijakan. Hasil penelitian menunjukkan bahwa air dan tanah di sekitar daerah BSD terkontaminasi limbah organik seperti BOD dan COD, sedangkan atmosfer mengandung gas toksik seperti: CO, SOx, NOx, ozon (O3) dan TSP. Di dalam analisis keberlanjutan mengungkapkan bahwa kota BSD mempunyai kategori kurang berkelanjutan (46,75), kurang dari 50 poin. Hanya dalam aspek seperti infrastruktur dan teknologi (52,20), ekonomi (53,17) dan hukum dan lembaga (59,95) mendekati kategori berkelanjutan. Sementara dalam aspek ekologi (42,22) dan sosial budaya (26,49) kota BSD dikategorikan tidak berkelanjutan.Terdapat 22 faktor pengaruh dan 5 parameter kunci untuk dapat dipertimbangkan kota BSD di dalam mencapai kota yang keberlanjutan. Disarankan kebijakan untuk pengembangan kota berkelanjutan baru harus ada penyediaan teknologi produksibersih, penyediaan fasilitas sistem pembuangan kotoran, pengembangan jaringan jalan, transportasi umum yang efektif dan efisien, mempertimbangkan budaya lokal, peningkatan lembaga yang sesuai. kata kunci: kota baru, kualitas air dan udara, system pembuangan kotoran, model, strategi, dan kebijakan.kata kunci: kota baru, kualitas air dan udara, system pembuangan kotoran, model, strategi, dan kebijakan.
Dampak Eutrofikasi Terhadap Struktur Komunitas dan Evaluasi Metode Penentuan Kelimpahan Fitoplankton
Authors: Garno Yudhi Soetrisno
Published: January 2019

Pada umumnya peneliti menentukan status kualitas perairan menggunakan data yang diperoleh dengan plankton-net. Data tersebut tidak menceminkan kepadatan dan struktur komunitas fitoplankton yang sebenarnya. Oleh karena itu data tersebut kurang layak untuk menganalisis status kualitas perairan. Artikel ini menyampaikan hasil kajian kelimpahan fitoplankton di perairan tawar dan laut, yang diperoleh dengan dan tanpa menggunakan plankton-net. Kepadatan yang diperoleh dengan planktonnet menghasilkan nilai yang jauh lebih kecil dari kepadatan yang diperoleh tanpa menggunakan plankton-net. Ini mengisyaratkan bahwa untuk menganalisis status kualitas air, lebih layak menggunakan data yang diperoleh dengan tanpa plankton-net kata kunci: fitoplankton, plankton-net, nutrien, eutrofikasi, struktur komunitas.AbstractIn general, researchers determine the status of water quality using data obtained with a plankton-net. The data do not reflect the density and the actual structure of phytoplankton communities. Therefore, the data is not feasible to analyze the water quality status. This article present the results of the study the abundance of phytoplankton in freshwater and marine, which obtained with and without using a plankton-net. Density obtained with a plankton-net produce values that are much smaller than the density obtained without using a plankton-net. This implies that in order to analyze the status of water quality, is more feasible to use data obtained with the no-net plankton key words: phytoplankton, plankton-net, nutrients, eutrophication, the community structure.
PENGARUH LAMA ENSILASE TERHADAP KUALITAS FRAKSI SERAT KASAR SILASE LIMBAH PUCUK TEBU (Saccharum officinarum) YANG DIINOKULASI DENGAN BAKTERI ASAM LAKTAT TERSELEKSI
Authors: Fariani A. , Akhadiarto S.
Published: January 2019

Tujuan penelitian ini adalah untuk mengetahui pengaruh lama ensilase terhadap kualitas fraksi serat kasar silase limbah pucuk tebu (Saccharum officinarum) yang diinokulasi dengan bakteri asam laktat yang dipilih. Penelitian ini dilakukan dalam dua Tahap. Tahap pertama adalah pengayakan dan seleksi bakteri asam laktat dari pucuk tebu dan tahap kedua adalah pembuatan silase pucuk tebu dengan bakteri asam laktat hasil penelitian tahap pertama. Penelitian dilakukan di laboratorium Nutrisi dan Makanan Ternak Fakultas Pertanian Universitas Sriwijaya, Palembang. Penelitian ini menggunakan Rancangan Acak Lengkap dengan 4 perlakuan dan 4 ulangan : P1 (lama fermentasi 7 hari), P2 (lama fermentasi 14 hari), P3 (lama fermentasi 21 hari), dan P4 (lama fermentasi 28 hari). Parameter yang diamati adalah NDF, ADF, selulosa, lignin, pHsilase dan populasi bakteri asam laktat. Hasil penelitian menunjukkan, perlakuan yang memberikan pengaruh signifikan pada NDF (P1 66.90%, P2 70.79%, P3 70.83% and P4 69.26%) dan ADF (P1 62.78%, P2 63.41%, P3 63.58% and P4 66.94%, sedangkan untuk selulosa, lignin, dan pH silase adalah non signifikan. Disimpulkan bahwa inokulasi bakteri asam laktat terseleksi dapat meningkatkan kualitas fermentasi silase pucuk tebu dan waktu ensilase dapat dipercepat dari 21 hari menjadi 7 hari. kata kunci : lama ensilase, kualitas fraksi serat kasar, inokulasi, bakteri asam laktat. AbstractThe objective of this research was to know the effect of ensilage time on fiber fraction quality of sugarcane top (Saccharum officinarum) inoculated with selected lactic acid bacteria. This research was conducted in two stage. First stage was lactic acid bacteria isolated from sugarcane top and second sugarcane top ensilage with selected lacticacid bacteria. There were held on Animal feed and Nutritive Laboratory Faculty of Agriculture, Sriwijaya University. This research used Completely Randomized Design with 4 treatments and 4 replications: P1 (7 days ensilage), P2 (14 days ensilage), P3 (21 days ensilage), P4 (28 days ensilage). Observed parameters were NDF, ADF,cellulose, lignin, pH silage and population lactic acid bacteria. The result showed that treatment gave significant effect on NDF (P1 66.90%, P2 70.79%, P3 70.83% and P4 69.26%) and ADF (P1 62.78%, P2 63.41%, P3 63.58% and P4 66.94%, however cellulose, lignin and pH silage were non significant. In conclution, selected lactic acidbacteria could improved silage fermentation quality of sugarcane top and ensilage time were improved from 21 days to 7 days. key Words: Ensilage time, fiber fraction quality, inoculant, lactic acid bactery
PREPARASI DEINOCOCCUS RADIODURANS DAN KHAMIR DALAM MATERIAL KECAP L-DRYING SEBAGAI BAHAN UJI PROFISIENSI
Authors: Yulinery Titin , M.Dewi Ratih
Published: January 2019

Tes kemampuan adalah salah satu kegiatan penting dalam pengendalian mutu dan jaminan kualitas mikrobiologi laboratorium untuk mengukur kompetensi analis dan analisis uji profisiensi membutuhkan persiapan Model mikroorganisme adalah kualitas standar dan validitas. Mikrobiologi uji kualitas produk kedelai utama diarahkan pada kehadiran Saccharomyces cerevisiae ragi (S. cerevisiae), S. Bailli, S. rouxii dankontaminan bakteri seperti Bacillus dan Deinococcus. Jenis ragi dan bakteri yang terlibat dalam proses dan dapat menjadi salah satu parameter kualitas penting dalam persiapan yang dihasilkan. Jumlah dan viabilitas bakteri dan ragi menjadi parameter utama dalam proses persiapan bahan uji. Jumlah tersebut adalah jumlah minimum yang berlaku dapat dianalisis. Jumlah ini harus dibawah 10 CFU diperlukan untuk menunjukkan tingkat hygienitas proses dan tingkat minimal kontaminasi. Viabilitas bakteri dan bahan tes ragi persiapan untuk tes kemahiran kecap yang diawetkan dengan L-pengeringan adalah teknik Deinococcus radiodurans (D. radiodurans) 16 tahun, 58 tahun S. cerevisiae, dan S. roxii 13 tahun. kata kunci: Viabilitas, Deinococcus, khamir, L-pengeringan, Proficiency AbstractProficiency test is one of the important activities in quality control and quality assurance microbiology laboratory for measuring the competence of analysts and analysis Proficiency test requires a model microorganism preparations are standardized quality and validity. Microbiological test of the quality of the main soy products aimed at thepresence of yeast Saccharomyces cerevisiae (S. cerevisiae), S. bailli, S. rouxii and bacterial contaminants such as Bacillus and Deinococcus. Types of yeasts and bacteria involved in the process and can be one of the important quality parameters in the preparation produced. The number and viability of bacteria and yeasts become themain parameters in the process of test preparation materials. The amount in question is the minimum number that is valid can be analyzed. This amount must be below 10 CFU required to indicate the level of hygienitas process and the minimum level of contamination. Viability of bacteria and yeast test preparation materials for proficiencytest of soy sauce that preserved by L-drying technique is Deinococcus radiodurans ( D. radiodurans ) 16 years, 58 years S. cerevisiae, and S. roxii 13 years. key words : Viability, Deinococcus, Khamir, L-drying, Proficiency
ISOLASI, POPULASI DAN KARAKTERISASI BAKTERI PELARUT FOSFAT PADA DAERAH PERAKARAN DAN TANAH DARI BENGKULU, SUMATRA
Authors: Purwaningsih Sri
Published: January 2019

Penelitian dilakukan untuk mengetahui isolasi, populasi dan karakterisasi bakteri pelarut fosfat pada tanah dari rizosfer tanaman dari Bengkulu, Sumatra. Tujuan penelitian untuk mengetahui populasi bakteri pelarut fosfat dari rizosfer tanaman, dan mendapatkan kultur murni. Sampel diambil dari 25 sampel tanah dari rizosfer tanaman. Isolasi dilakukan dengan metode dilusi dalam Pycosvkaya menengah standar, inculation di (27-280C) setelah 15 hari, dan penduduk dengan metode plate count. Populasi bakteri pelarut fosfat berada di kisaran 13-101 105 X tanah CFU / g, dan populasi tertinggi ditemukan dari sampel tanah dari rhizoaphere dengan Semangka (Citrulus lanatus) tanaman. Tujuh puluh lima memberikan budaya murni. Karakteristik pertumbuhan kultur murni diamati dengan menggunakan media Pycosvkaya. Inkubasi di (27-280C) setelah 15 hari. Zona jelas mengelilingi koloni menunjukkan bahwa fosfat dalam medium adalah terhidrolisis dan zona terbentuk dari dua hari sampai delapan hari kata kunci: Bakteri pelarut Fosfat, Pycosvkaya, Bengkulu AbstractThe research was conducted in order to know the isolation, population and characterizations of phosphate solubilizing bacteria on the soil from rhizosphere plants from Bengkulu, Sumatra. The purpose of the study to know the population of phosphate solubilizing bacteria from rhizosphere plants, and the get pure culture. The sample wastaken from 25 sample soil from rhizosphere of plants. Isolation was done with dilution methods in standard medium Pycosvkaya, the inculation at (27-280C) after 15 days, and the population with plate count methods. The population of phosphate solubilizing bacteria was in the range of 13-101 X 105 CFU/g soil, and the highest population wasfound from the sample soil from rhizoaphere with Semangka (Citrulus lanatus) plant. Seventy five gave of pure culture. The growth characteristic of pure culture was observed by using Pycosvkaya medium. Incubation at (27-280C) after 15 days. The clear zone surround the colonies indicate that the phosphate in the medium was hydrolyzed and the formed zone from two days until eight days key words: Phosphate Solubilizing Bacteria, Pycosvkaya, Bengkulu