Judul: Conversion of Plastic Waste from IPB Darmaga Kampus into Paving Blocks and Plant Pots
Abstrak: Upaya yang dapat dilakukan untuk mengurangi dampak buruk limbah plastik adalah daur ulang (recycle) plastik menjadi produk baru. Penelitian ini bertujuan melakukan identifikasi dan karakterisasi limbah anorganik di Kampus IPB Darmaga, merancang bangun dan melakukan uji unjuk kerja alat peleleh limbah plastik, dan mengolah limbah plastik menjadi paving block dan pot tanaman. Identifikasi dan karakterisasi dilakukan terhadap sampah anorganik di Kampus IPB Darmaga dengan fraksi terbesar adalah sampah plastik campur mencapai 36,13%. Berat jenis sampah plastik campur adalah 0,0112 kg/L. Alat peleleh plastik dirancang dengan kapasitas 12 kg. Alat peleleh plastik terdiri atas kerangka meja dan ruang pelelehan berbentuk tabung tertutup. Alat tersebut terbuat dari material besi, dilengkapi dengan termometer dan pipa keluaran. Uji unjuk kerja memperlihatkan bahwa alat sudah berfungsi dengan baik. Titik leleh plastik tercapai pada suhu 180 0C. Plastik yang sudah meleleh dapat dibuat menjadi pot tanaman maupun digunakan sebagai bahan tambahan paving block., The solution that can be done to reduce the bad impact of plastic waste is to recycle plastic into new products. This study aimed to identify and characterize inorganic waste at the IPB Darmaga Campus, to design and test the performance of a plastic waste melting device, and to process plastic waste into paving blocks and plant pots. Identification and characterization were carried out on inorganic waste at the IPB Darmaga Campus and it was found that the largest fraction was mixed plastic waste, reaching 36,13%. The density of mixed plastic waste measured was 0,0112 kg/L. The plastic melter is designed with a capacity of 12 kg. The plastic melter consists of a table frame and a closed tubular melting chamber. The tool is made of iron material, equipped with a thermometer and output pipe. The performance test showed that the tool is functioning properly. The melting point of plastic is reached at 180 0C. Melted plastic can used to make plant pots or used as additional material for paving blocks.
Keyword: paving block komposit, peleleh plastik, rancang bangun, unjuk kerja

Judul: Konversi Limbah Plastik dari Kampus IPB Darmaga Menjadi Bahan Bakar Minyak (BBM) Menggunakan Metode Pirolisis
Abstrak: Pirolisis merupakan alternatif pengolahan sampah plastik yang produknya berupa bahan bakar minyak. Penelitian ini bertujuan untuk mengukur timbulan sampah plastik, menentukan komposisi sampah plastik, serta menentukan kelayakan ekonomi pengolahan sampah plastik menjadi BBM. Penelitian berlangsung pada bulan Februari hingga Juli 2020 menggunakan data primer hasil pengukuran di lapangan. Sampah plastik yang digunakan dalam proses pirolisis merupakan lima jenis plastik dari TPA Cikabayan Kampus IPB Darmaga yaitu low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polyethylene terephthalate (PET), dan polystyrene (PS). Sampah dipisahkan dan ditimbang berdasarkan komposisinya kemudian diolah menjadi bahan bakar minyak dengan metode pirolisis. Rata-rata bangkitan sampah plastik yang dihasilkan sebesar 39,4 kg/hari. Berdasarkan hasil pirolisis, jenis plastik yang menghasilkan volume BBM tertinggi hingga terendah secara berturut-turut yaitu PP, LDPE, PS dan PET. Analisis kelayakan ekonomi menunjukkan bahwa jenis plastik LDPE, PP, PET dan PS tidak layak secara ekonomi.
Keyword: bahan bakar minyak, kelayakan ekonomi, pirolisis, sampah plastik

Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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