bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Berthing Time terhadap Kinerja Pelayanan Bongkar Muat Curah Kering
Authors: Dwi Wahyu Wiranata Alfan , Sudirman Sudirman , Agus Setiono Beni
Published: November 2022

Penelitian ini bertujuan untuk mengetahui pengaruh berthing time dan faktor-faktor yang mempengaruhi berthing time terhadap kinerja pelayanan bongkar muat curah kering. Lokasi penelitian di PT. Berlian Manyar Sejahtera selaku Operator Pelabuhan JIIPE (Java Integrated Industrial Port Estate) Manyar Gresik dengan menggunakan variabel bebas Berthing Time (waktu pertama kapal mulai ikat tali sampai dengan lepas tali di tambatan) dengan variabel terikat adalah kinerja pelayanan bongkar muat. Populasi dalam penelitian ini adalah karyawan divisi operasional di Pelabuhan JIIPE (Java Integrated Industrial Port Estate) PT. Berlian Manyar Sejahtera. Sedangkan sampel (informan) yang digunakan peneliti ini adalah, foreman kapal dan checker. Hasil penelitian didapatkan nilai rata-rata kinerja waktu efektif kerja kapal di tambatan (ET:BT) sebesar 53.19% masih di bawah standar yang telah ditentukan di dalam Keputusan Dirjen Perhubungan Laut Nomor :UM.002/38/18/DJPL-2011 yaitu 70% bahkan tidak ada satupun yang mencapai 90% dari standar yang ditentukan, sedangkan rata-rata waktu kinerja produktivitas pelayanan bongkar muat kapal (T/G/J) mencapai angka 153.23 T/G/J, di atas standar yang ditentukan di dalam Keputusan Dirjen Perhubungan Laut Nomor. :UM.002/38/18/DJPL-2011 yaitu 125 T/G/J meski ada beberapa kegiatan yang masih dibawah standar. Dari hasil observasi dan wawancara dengan pihak perusahaan dapat disimpulkan bahwa faktor utama penyebab tidak tercapainya standar kinerja berthing time di atas adalah karena tingkat Effective Time yang disebabkan oleh tingkat tingginya Idle Time dan Not Operation Time. Untuk standar kinerja produktivitas pelayanan bongkar muat (T/G/J) penyebab tidak tercapainya standar kinerja dikarenakan faktor muatan dan fasilitas penunjang bongkar muat.
Экономический коридор Китай – Монголия – Россия: выстраивание инфраструктурной связанности в условиях глобальных вызовов
Authors: Дондоков З.Б.-Д. , Намжилова В.О.
Published: November 2022

Усиливающаяся жесткая конфронтация России со странами Запада создает новые геополитические реалии для взаимодействия участников экономического коридора Китай – Монголия – Россия. В условиях переформатирования внешнеэкономических связей монгольское направление может стать важнейшим маршрутом, обеспечивающим выход российских товаров на международные рынки и импорт необходимой продукции. Авторы анализируют становление трехстороннего экономического коридора России, Монголии и Китая, оценивают влияние событий 2020–2022 гг. на реализацию его приоритетных инфраструктурных проектов. Отмечены неоднозначные последствия пандемии для сферы железнодорожных и автомобильных грузоперевозок, подчеркивается необходимость значительных инфраструктурных преобразований, в первую очередь на территории Монголии, для расширения транзитных возможностей монгольского направления.
Введение эффективного контракта и молодежная политика в академических институтах: опыт ИЭОПП СО РАН
Authors: Гильмундинов В. М. , Панкова Ю.В.
Published: November 2022

В статье дается оценка процессов институциональной трансформации научной сферы России. Основное внимание уделяется вопросам перехода к управлению по количественным показателям и введению системы эффективного контракта в научных организациях. На примере ИЭОПП СО РАН проводится анализ проблем и ограничений развития научных организаций, рассматриваются механизмы их преодоления и достижения ключевых целей и задач. Обсуждаются изменения в подходах к управлению бюджетной научной организацией с целью повышения ее эффективности. Особое внимание уделяется проблемам привлечения и закрепления научной молодежи в условиях управления по количественным показателям.
Hubungan antara Kualitas Pertemanan dan Kerinduan pada Rumah pada Siswa Baru Di Lingkungan Pesantren
Authors: Luqiyana Tsamarah
Published: November 2022

Kerinduan pada rumah  merupakan salah satu pengalaman yang biasanya muncul ketika seseorang  meninggalkan rumah untuk menetap di lingkungan yang baru. Penelitian ini bertujuan untuk mengetahui hubungan antara  kualitas pertemanan dan kerinduan pada rumah  pada siswa baru di pesantren Kabupaten Agam, Sumatera Barat. Partisipan dalam penelitian ini berjumlah 140 santri yang menetap di asrama pondok pesantren, berusia 11-16 tahun. Teknik random sampling digunakan untuk pengambilan sampel. Skala yang digunakan adalah skala kerinduan pada rumah  yang diadaptasi dari Yasmin (2018) dan skala kualitas pertemanan kualitas pertemanan ( FQUA ) yang diadaptasi dari Thien, Razak & Jamil (2012). Metode analisis data menggunakan teknik uji korelasi pearson product moment dengan bantuan SPSS 16.0 for windows. Hasil penelitian menunjukkan terdapat hubungan antara kualitas pertemanan dankerinduan pada rumah  pada siswa baru di pesantren Kabupaten Agam, Sumatera Barat dengan diperoleh nilai sig. 0,042 ( p < 0,05 ). Dari penelitian ini juga didapatkan hasil hubungan antara kedua variabel berkorelasi positif yaitu semakin tinggi kualitas pertemanan santri semakin tinggi tingkat keinduan pada rumah pada santri.

Kata Kunci: kerinduan pada ruman, kualitas pertemanan kualitas pertemanan, siswa baru, asrama, pesantren.
Kontribusi Regulasi Emosi terhadap Resiliensi Mahasiswa dengan Rentang Usia Remaja Pasca Kematian Orangtua
Authors: Tri Belan Harjuna Rafiq , Rinaldi
Published: November 2022

Penelitian ini tujuannya melihat kontribusi regulasi emosi terhadap resiliensi mahasiswa dengan rentang usia remaja pasca kematian orang tua kandung. Penelitian ini menggunakan metode kuantitatif. Populasi yang terlibat ialah mahasiswa dengan rentang usia remaja yang salah satu atau kedua orangtuanya telah meninggal. Sampling menggunakan teknik purposive sampling dengan jumlah 99 responden. Alat ukur yang digunakan adalah  Emotional Regulation Questionnaire (ERQ) dari Siswandi & Caninsti (2020) yang berdasarkan pada dimensi-dimensi Gross & John (2003). Sedangkan, Skala resiliensi menggunakan Connor-Davidson Resilience Scale (CD-RISC) dari Rinaldi (2011) berdasarkan pada aspek-aspek yang Connor & Davidson. Hasil uji hipotesis diperoleh p = .000 (p<0.05) dan nilai R2  =  0.549,  yang berarti bahwa regulasi emosi berpengaruh terhadap dengan kontribusi resiliensi mahasiswa dengan rentang usia remaja pasca kematian orang tua kandung sebesar 30,2%.

Kata kunci: Regulasi emosi, resiliensi, remaja, kematian orangtua
Effect of iron catalyst on caffeine oxidation by sono-Fenton technology
Authors: Lomas J , Sardón Lara , Ferreiro Cristian , Villota N
Published: November 2022

Oxidation of waters containing 100.0 mg L-1 of caffeine was conducted by a sono-Fenton treatment employing an ultrasound power of 720W at pH=3.0 and T=25°C. The catalytic action of ferrous ion was studied in a range of [Fe2+]0=0-100.0 mg L-1, using oxidant ratios of [H2O2]0=250.0 mM. The oxidation of caffeine was fitted to second order kinetic model, with the oxidation kinetic constant showing a linear dependence with iron dosage. During oxidation, the water acquired yellow-brown colour, along with an increase of turbidity and aromaticity degree. This is due to byproducts formation of uric acid-derived that has strongly aromatic structures that contain chromophore groups. Iron could give rise to a reaction mechanism with organic matter through the formation of (hydro)peroxo iron complexes. The molar ratio of 1 mol Fe2+: 0.5 mol C8H10N4O2 : 250 mol H2O2 : 720W promotes the formation of coloured species that generate high turbidity in the water.
Extended suspect screening to identify organic micropollutants and their transformation products as potential markers of wastewater contamination in riverine and coastal ecosystems
Authors: GROS MERITXELL , ČELIĆ MIRA , JAEN ADRIAN , BRICEÑO-GUEVARA SUSANA , RODRIGUEZ-MOZAZ SARA , PETROVIĆ MIRA
Published: November 2022

In this study, a comprehensive suspect screening of organic micropollutants (MPs), and some of their transformation products (TPs) and metabolites, was performed in waste, river and coastal waters from the Ebro Delta region (Catalonia, Spain). For this purpose, an automated suspect screening workflow was developed using two analytical steps: (i) identification of suspected compounds using on-line databases; and (ii) semi-quantification of identified compounds by using isotopic labelled standards. Using this strategy, several pollutants were identified comprising pharmaceuticals, pesticides, abused substances, personal care products, industrial chemicals and surfactants of major relevance in Catalonia. Additionally, their occurrence was evaluated along the wastewater-recipient water chain until they reach estuaries and the Mediterranean Sea. The most ecologically relevant compounds detected, that could be considered as suitable markers of wastewater contamination in freshwater and coastal ecosystems, were highlighted. Results reveal that some suspected TPs and metabolites were more ubiquitous than their parent compound and found at similar concentration levels. These results evidence that suspect screening methodologies can be a useful tool for the identification of relevant markers of wastewater contamination.
SusNisia: Circular economy for biogenic residues for the North Aegean – case studies for Islands of Chios and Lesvos
Authors: Baur Frank , Porzig Michael , Lekkas Dimitris
Published: November 2022

The North Aegean Islands of Chios and Lesvos set recycling goals for organic residues from MSW. Both islands, in line with the National and the Regional Plans for Municipal Waste Management, have selected the approach of mechanical-biological stabilization of MSW in combination with separated collection of biowastes and municipal pruning. The SusNisia-project, supported by the GRDE, adds Anaerobic Digestion (AD) to both approaches to demonstrate the added-value by production of biogas for energy purposes or as fuel for e.g. garbage trucks. The advantages of separated collection of organic input materials are the maintainance of high quality and multi-purpose end-products to serve the goal of local nutrient recycling. As refinement, SusNisia applies digestate or compost from Biowaste-AD and char coal from municipal pruning for production of specific soil enhancement products e.g. for olive tree cultivation, vegetable farming and greenhouse applications. The char coal, as activated char, absorbs pollutions, provides a sink for carbon dioxide and delivers extended water storage capabilities. The stark natural variation of nutrient content as well as the absence of refinancing schemes for climate services by novel and innovative soil products, are significant constraints for a commercial mainstreaming.
Reactivation of former watercourses to support urban stormwater management
Authors: Kretschmer Florian , Simperler Lena , Glanzer Martina , Ertl Thomas
Published: November 2022

In recent decades many urban water courses have been heavily modified by land gaining measures aiming at canalising, straightening and draining existing water systems. Additionally, urbanisation causes a higher degree of sealing which results in higher surface runoff during rainfall. Today, in many regions of the world climate change leads to an increase of heavy rain events causing severe flooding problems in settlement areas. To support related problem-solving, the presented work investigates the question of whether the reactivation of former water courses could make a positive contribution to urban stormwater management. Based on the case study of an Austrian municipal area the research work follows a two-target approach: First, the collection, digitalisation and verification of the former water courses in the investigated area based on historical maps and recent planning documents. Second, a GIS-based overlap of the verified (still existing but inactive) natural water courses with the current sewage and stormwater network to derive potential options for relieving the strain on the entire urban drainage system. Results show, that reactivation of former water courses can be an interesting and promising component of an integrated and thus an even more natural urban stormwater management approach.
Antibiotic resistance of Clavibacter michiganensis subsp. sepedonicus Georgian isolates
Authors: Sadunishvili Tinatin , Amashukeli Nnauli , Gaganidze Dali , Sturua Neli , Burbutashvili Turpa , Khatradze Shorena
Published: November 2022

Clavibacter michiganensis subsp. sepedonicus (Cms) is a causative pathogen of potato bacterial ring rot. This devastative pathogen poses a constant threat to potato growers worldwide. It was regarded as a disease of cool northen regions but is currently spreading within Europe, including some southern areas (Crete, Cyprus and Spain). The pathogen damages vascular system of tubers, stems and leaves with slow or no development of symptoms on plants. Management of ring rot of potato are especially difficult in storage places, where the pathogen, being in a latent form, may infect almost all tubers. The aim is the study of antibiotic resistance of potato ring rot causative Cms geographically and temporarely representative isolates in Geogia. Cms were initially detected in collected in different regions of Georgia both symptomatic and asymptomatic potato tubers by specific molecular method. Dozens of pure Cms isolates were recovered from these samples and identified by PCR using the pathogen-specific primer set PSA-1 and PSA-R. Relation of 19 virulent strains towards 9 antibiotics: tobramycin, penicillin, trimethoprim, erythromycin, kanamycin, ofloxacin, chloramphenicol, tetracycline and streptomycin by disc-diffusion method have been studied. The isolates demonstrate different susceptibility to the antibiotics, independently they were obtained from symptomatic or asymptomatic tubers.
The use of recycled human food wastes and unconsumed leftovers in the aquaculture industry for the partial replacement of commercial manufactured fishmeal-based feeds as a more sustainable and environmentally friendly practice: Recent research and finding
Authors: Petsas A , Vagi M
Published: November 2022

Food waste or leftovers generated by various raw or processed food materials that are not consumed but instead are usually disposed to waste landfills are regarded as a global issue which impacts human health and environmental sustainability. An enormous pressure in disposing of food wastes in landfill sites already exists and is predicted to be increased during the forthcoming years whereas simultaneously various environmental problems associated with solid wastes have to be solved. On the other hand, a percentage higher than 60% of the operational costs of any modern aquaculture industry concerns the supplies of protein-enriched- aquafeeds which among other characteristics are commercially manufactured sources of additional healthy nutritious and digestible proteins that tend to be expensive. Recent research and published data evaluating the use of recycled food wastes as a partial replacement of fishmeal-based feeds in diets of several species suggest that this can be considered as a more sustainable and environmentally friendly practice.
Compost Quality Assessment of Various Agricultural Wastes and Organic Manures
Authors: Radwan S. , Ashour E.
Published: November 2022

Today the quality of compost is the most essential criterion in recycling organic wastes, as well as its marketing and utilization in agriculture. Environmentally safe recycling of organic waste to agricultural land could be crucial to sustaining soil productivity in Mediterranean areas, where soil organic matter content is very low. The present study discusses variations in some quality parameters of compost produced using various organic combinations. Over a period of 90 days, special attention was given to monitoring compost quality parameters, including: temperature, dry matter, pH, electrical conductivity (EC), microbial counts, organic matter (OM), organic carbon (OC), NH4, NO3, C:N ratio, macronutrients (NPK), and micronutrients (Fe, Mn, Zn, and Cu). The results revealed that almost all of the investigated parameters showed remarkable changes during compost formation. Agricultural wastes in the presence 10% poultry manure was comparatively of superior quality in terms of the availability of macro and micronutrients as well as microbial activity. However, agricultural wastes with 10% mixture of sheep and camel manure was found to be superior in terms of OM, OC, C:N ratio and yielded the highest bacterial counts. Compost quality depended on the base materials used, the duration and conditions of decomposition.
Turning waste into new resources in small and medium sized enterprises
Authors: Christensen Ole
Published: November 2022

Turning waste into new resources in small and medium sized enterprises (SME). During a three years period (2015-2018) a project involving SME's, was carried out in corporation of six Danish municipalities, the Technical University of Denmark (DTU) and Symbiosis Center Denmark. The project was financed by EU. The project focused on industrial symbioses, optimizing resources and/or potential waist minimalization. Initially 107 SME's where screened for their potential to join the project. Of these 52 SME's were offered a technical development plan and 42 SME's were offered a green development plan. The outcome of the project showed following potential savings: • Energy: 36.222 GJ/year • Materials: 10.416 tons/year • Water: 20.935 tons/year • CO2 emission savings: 4.908 ton/year This corresponds to 1 million euro saved. If all the proposed solutions are implemented, it will result in at least 24 new jobs in the participating SME's. Putting resource efficiency and industrial symbiosis on the agenda of small and medium-sized enterprises showed that sustainable growth can be achieved. It requires companies that are ready to think differently and are open to new ways of doing business.
The effect of the presence of zinc on the precipitation of CaCO3 from supersaturated solutions
Authors: Koutsoukos Petros , NATSI PANAGIOTA , MOUSTAKI ELPIDA
Published: November 2022

Precipitation and dissolution processes of calcium carbonate in natural aquatic systems, are responsible not only for the regulation of pH but also for the transport of pollutants to and from sediments. Of interest in these processes, is the role of the presence of heavy metals in the aquatic environment. In the present work the mechanism of calcium carbonate formation from supersaturated solutions in the absence and presence of zinc (II) was investigated at 25°C, pH 8.50, 0.1M NaCl, at conditions of constant supersaturation. Kinetics analysis suggested that the precipitation of calcium carbonate both in the absence and in the presence of zinc over a concentration range 10-30 M, is controlled by surface diffusion. The presence of zinc in the supersaturated solutions reduced the rate of crystal growth of the calcite seed crystals and the rate reduction was smaller the higher the solution supersaturation. The inhibition was probably due to the adsorption of zinc species to the active sites of crystal growth of the seed crystals. Provided that the adsorption could be described according to the Langmuir model, the assumption was justified both by fitting kinetics data of calcium carbonate crystal growth and by independent equilibrium adsorption studies.
One step industrial enzymatic technology of starch hydrolysis to glucose
Authors: Kvesitadze Giorgi , Urushadze Tamar , Khvedelidze Rusudan , Kutateladze Lali , Zakariashvili Nino , Jobava Maya , Sadunishvili Tinatin
Published: November 2022

Starch degrading enzymes like amylase have received great attention because of their technological significance and economic benefits. As a result of screening of Durmishidze Institute of Biochemistry and Biotechnology collection of mycelial fungi, accounting 2500 individual strains, 39 strains poducing amylases have been revealed. Three promising enzyme producer strains of genus Aspergillus have been selected and technical preparations of their amylases obtained. The hydrolysis process of starch of different concentrations with the technical preparationof Aspergillus niger p8-3 at 680С was studied. 94- 96 % yield of glucose was reached at incubation of 30% and 40% starch with technical preparations of fungal enzymes during 8 hours.
An Ignition Probability Index for the early detection of wildfires in the Eastern Mediterranean region
Authors: Xofis Panteleimon , Tsiourlis Georgios , Konstantinidis Pavlos
Published: November 2022

Wildfires continue to form a major disturbance factor in Mediterranean ecosystems, often associated with significant loss of properties and human lives. Fast detection and suppression within the first minutes after ignition constitute one of the pillars for successful wildfire management and prevention of its catastrophic consequences. The current study, which is funded by the Interreg V-B “Balkan-Mediterranean 2014-2020” project “SFEDA”, aims to develop a Fire Ignition Probability Index (IPI) which will be integrated in an automatic fire detection system composed by optical and thermal land cameras and UAV. The IPI index will be calculated based on the pyric history, the anthropogenic influence and the simulated fire behavior in a study areas in Southern Greece. The pyric history will be represented by point data and through a Kernel Density Estimation will calculate a risk factor. The anthropogenic influence will be estimated based on an inverse relationship with the Euclidean distance from roads and settlements. Finally, fire behavior will be calculated using fire simulation models and data on fuel properties, estimated using state of the art remote sensing methods and field data. The integration of the IPI in the automatic fire detection system is expected to form a significant contribution to its improved accuracy.
Comparative analysis of chlorinated intermediates formed during electrochemical and photo(electro)catalytic degradation of 4-Ethylphenol in saline media
Authors: Brüninghoff R. , Mul G. , van Duijne A. , Braakhuis L. , Saha P. , Jeremiasse A. , Mei B.
Published: November 2022

Formation of toxic by-products, such as chlorinated intermediates, is one of the major drawbacks of advanced oxidation processes for saline wastewater treatment. Here a comparative analysis of electrochemical oxidation and photocatalytic degradation of 4-Ethylphenol, a non-chlorinated starting model compound of the group of alkylphenols, is presented. Main intermediates have been identified and quantified for brackish [0.03 mol*L-1] and sea water [0.6 mol*L-1] salt concentrations representative for the salt levels in various industrial effluents. Our comparison indicates that photocatalytic treatment (using TiO2 photocatalysts) might be favorable over electrochemical treatments with Pt or BDD anodes due to the minor role of chlorination and the limited formation of chlorinated compounds in photocatalysis. Finally, using photoelectrochemical degradation an external surface recombination mechanism of photogenerated charge carriers will be presented explaining the absence of chlorinated compounds during photocatalytic wastewater treatment.
The influence of methane emission and hard coal production on air quality and greenhouse effect in 1994-2017 in the Upper Silesian Coal Basin (Poland)
Authors: Dreger Marcin
Published: November 2022

The Upper Silesian Coal Basin (USCB) is the largest coal basin in Poland and one of the largest in Europe. It is the most industrialized region in Poland. The main natural resource and energy raw material is hard coal which was produced by 65 mines in the early nineties. The USCB geology is very diverse and not homogeneous. Coal deposits situated in the central, southern and western regions are mostly covered by impermeable Miocene deposits which helped methane (CH4) to accumulate in the past. Methane is one of the most dangerous natural hazard in Polish underground mining because it is explosive gas. CH4 is also the second strongest greenhouse gas after the carbon dioxide, but its radiative power is 21-25 times stronger than the radiative power of CO2. Polish coal mines releases 568.9 million m3 (average) of CH4 yearly and it provides to greenhouse effect increasing. From one year to another, the Upper Silesian coal mines are going to extract hard coal from deeper seams when the methane content is much higher. To keep workers safe, CH4 need to be captured and released to the open air atmosphere or used to power and heat production.
Development and Validation of a multistep derivatization method for the determination of polar species in organic aerosol
Authors: Bakeas E , Kanellopoulos P.G , Koukoulakis K , Chrisohou E , Papadakis I
Published: November 2022

Secondary organic aerosol (SOA) is a significant constituent of airborne fine particles. A multistep derivatization method was developed, optimized, and fully validated for the determination of organic compounds in the atmospheric aerosol with mono- and multi-functional species, with GC/MS. The first step includes the alkylation of the carbonyl (C=O) moieties using o-methylhydroxylamine hydrochloride as the derivatization reagent. The second step refers to the conversion of carboxylic acids to their methyl esters derivatives using trimethylsilyldiazomethane (TMSD)/methanol or BF3/methanol. Finally, alcohols are converted to trimethylsilyl ethers with N,O-bis(TMS)-trifluoroacetamide. The use of TMSD/methanol as the derivatization reagent in step 2 is preferred over BF3/methanol due to the higher average MS responses of the derivates of the first reagent. Additionally, BF3/MeOH was ineffective at converting low molecular weight dicarboxylic acids and species with 2-OH moieties. The derivatization procedure in stages 1 and 3 was optimized yielding the appropriate reaction temperature and time, while in stage 2 yielding the appropriate amounts of the derivatization reagents. The method, was validated for twenty-two compounds which are possible SOA tracers. Detection limits ranged from 0.35 ng m-3 to 2.8 ng m-3 And recoveries from 73.5% to 108%. This method was applied to field samples from rural and industrial areas. Approximately 70 organic compounds were identified and quantified with concentration levels ranging from below limits of detection to 42 ng m-3 .
Evaluation phytotoxic effects and decolorization of simulated and real textile wastewaters by UV/H2O2
Authors: Aristizábal Castrillón Adriana , Quiceno Gómez Laura Isabel , Hernández Gallo Mariana , Cardona Rendón Lorena , Arroyave Quiceno Catalina
Published: November 2022

The discharge of dyes in aquatic ecosystems is of environmental concern due to intense coloration that decrease photosynthetic activity and the possible toxic effects (Hao et al., 2000). Therefore, the development and understanding of processes for the removal of textile dyes in wastewaters, like UV/H2O2, is of major importance. In the present study different textile dyes (Methylene Blue, Eliamine Blue F and Indigo) were used as model pollutants in water (ranging from 5 – 5000 mg/L). and real wastewater containing the Indigo dye was studied. The dyes in solution and the wastewater were treated by UV/H2O2 to study the influence of: the type of dye, the initial concentrations of dye, the initial concentration of H2O2, the initial pH of the solution and the irradiation times in the dye decolourization of the treated solutions. The phytotoxic effect in Raphanus sativus of the treated and untreated dyes and wastewater in solution were evaluated. The Raphanus sativus data indicated that the dyes and the wastewater inhibited the first stage of development before treatment. The assay after treatment with UV/H2O2 of the textile dyes indicated the seed germination of R. sativus were inhibited by Eliamine Blue F and Methylene blue.
MONITORING OF TREATED DOMESTIC WASTE WATER QUALITY
Authors: Ero Rossidou , Poulli Konstantina , Kozakou Sofia , Michael Nicos , Demetriou Eleni , Christofidou Maria , Aletrari Maria
Published: November 2022

Cyprus is experiencing severe water supply deficiency. Particularly in summer months the situation is aggravated mainly due to low precipitation, high evaporation and increased demands for irrigation and tourisms. The use of treated wastewaters for environmental purposes such as recharging aquifers, agricultural irrigation and municipal/ landscape is highly contributing in the scarcity problem. In Cyprus there are 8 large urban plants and 25 small community plants for domestic waste treatment. Various chemical analysis including Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), suspended solids, anions, total phosphorus, total nitrogen, toxic metals, pesticides and polycyclic aromatic hydrocarbons (PAHs) are contacted to ensure the quality of the treated wastewater. Instrumental techniques like ion chromatography, ICP, GC-MS and HPLC-fluorescence are used to determine ions, metals, pesticides and PAH,'s. In this study, the results of these analyses are presented for treated urban wastes. Heavy metals, boron, pesticides and PAHs are found in low concentrations ranging from low micrograms to milligrams per liter.
Electrochemical Treatment of Landfill Leachate under Cold Climate Conditions
Authors: Ambauen Noëmi , Meyn Thomas , Hallé Cynthia , Muff Jens
Published: November 2022

This study shows that electrochemical oxidation of landfill leachate (LL) is significantly affected by cold temperatures prevailing in Nordic climate areas. As hypothesized, the degradation of common wastewater parameters (TOC, COD) exhibited lower efficiency when low average temperature (13°C) was applied than compared to room temperature (25°C). At low temperature, 35 % of COD and 64 % of TOC were removed, compared to 69 % of COD and 74 % of TOC removal at high temperature. Electrochemical oxidation of ammonium (NH4) has also been observed, whereas only 1 % was removed at 13°C compared to 11 % at 25°C. In addition, the formation of three hazardous trihalomethanes (THMs) has been confirmed when a high current (7A) was applied, but THMs remained below the quantification limit of 3 ppb at low current (0.3 A). Even though kinetics decrease when cold temperatures are prevailing, electrochemical oxidation is considered still a suitable choice for the treatment of landfill leachate in areas with Nordic climate.
Electrodialysis in zero liquid discharge systems for sustainable brine management
Authors: Jiricek Tomas , Havelka Jan , Dolecek Petr , Cakl Jiri , Kroupa Jan , Krivcik Jan
Published: November 2022

According to the latest environmental requirements, zero liquid discharge principle must be considered in all modern manufacturing processes. In principle, solid waste can be achieved only by evaporation plus crystallization, and therefore reverse osmosis is usually applied to decrease the operation expenses by pre-concentrating the evaporator feed.
However, reverse osmosis can generally only achieve concentrates of about 80 g/kg, still leaving a significant gap before saturation of common salts is reached. Electrodialysis can double this concentration, cutting the evaporator operating expenses or even eliminating the evaporator at all, providing the concentrate can be directly fed to crystallization.
In this work an array of the most common brines was tested on a lab-scale electrodialysis unit, and salt transport, electricity consumption and electric current efficiency was evaluated. More attention was given to optimization of operating conditions, and the effect of polarity reversal and chemical cleaning was evaluated.
No performance drop in either scale-up factor was observed at the maximum concentrations, suggesting that under right operating conditions, integrated membrane processes should significantly decrease the evaporator costs and provide economic feasibility of zero liquid discharge process in waste brine treatment.
Genetic population structure of Scallops going through a rapid population decline in the Eastern Mediterranean
Authors: Metaxatos Angelina , Gazouli Maria
Published: November 2022

Genetic structure of the endemic Pecten jacobaeus of Aegean inferred from mitochondrial 16s DNA sequence analysis was performed. This genetic marker is a powerful tool for measuring genetic variation and gene flow among populations. Valuable scallop stocks were abundant in the past in Euboikos gulf and Aegean but now are severely depleted due to overfishing, pollution and ocean warming. To restock and conserve this bivalve, a better understanding of its genetic variability is essential. DNA was isolated using the nucleospin tissue kit after homogenization of ligament and PCR using genus specific primers. The PCR products were analyzed by sequencing. The genomic comparison was performed by Blast analysis. We studied two hypotheses: 1. Scallops (P. maximus & P. jacobeus) which can be easily distinguished by the shell morphology belong to the same species without a significant genetic variation or not 2. The possibility to extract DNA from dead shells, a good practice for protected or endangered species. We showed that it is possible to extract DNA from ligaments of dead shells exposed for longtime on the seabed. A high similarity (99%) between our results for P. jacobeus (16s rRNA genome) and P. Jacobeus / P. maximus nucleotide collections was revealed.
Effect of anthropogenic sources on total particles and Cloud Condensation Nuclei levels in the Eastern Mediterranean
Authors: Bougiatioti Aikaterini , Zarmpas Pavlos , Kalkavouras Panayiotis , Mihalopoulos Nikolaos
Published: November 2022

The absorption and scattering of radiation by atmospheric aerosol particles, especially those originating from anthropogenic activities, is a key component of anthropogenic climate change. Aerosol particles also act as cloud condensation nuclei (CCN) “indirectly” forcing climate through the modification of cloud properties and precipitation efficiency. The activation of particles to form CCN depend highly on particle size and chemical composition and differs upon location and proximity to sources. Particle number size distributions, aerosol chemical composition and CCN measurements were performed at two sites in the Eastern Mediterranean, namely a remote background site at Finokalia, Crete and an urban background location downtown Athens, Greece. The aim of the study is to characterize the levels and distribution of total aerosol particles (CN) and CCN in the different environments and analyse the role of anthropogenic sources in the measured levels.
An integrated methodology to estimate the contribution of environmental factors controlling the spatial variation of total dissolved solids. Application on Jiu River Basin (Romania)
Authors: Morosanu Gabriela Adina , Zaharia Liliana , Ioana - Toroimac Gabriela
Published: November 2022

The variation of the total dissolved solids (TDS) in river water is highly dependent on the natural and anthropogenic features of the TDS source areas, namely the river basins upstream of the measurement points. Despite the significant theoretical knowledge on the factors governing the TDS variation in rivers’ waters, the quantification and modelling of the role of different environmental variables influencing the TDS has been less investigated.
The objective of our work is to develop a methodology for estimating the contribution of the most significant natural and anthropic factors to the spatial variation of TDS, by integrating GIS and statistical tools. The methodology was applied on the Jiu River Basin (10,070 km2), located in SW Romania, covering different landforms (mountains, hills, plains) with diverse lithology, soils and land cover, as well as with various economic activities (one of which is coal mining). The study is based on TDS measurements on Jiu River and its main tributaries, performed during the summers of 2016, for the method setup, and of 2017, for the method validation, in periods of low and medium waters. The baseline factors considered in our analysis as primarily responsible for the TDS concentration were: rock types, vegetation cover, soil types, relevant human activities (types of industry and agricultural activities in the valleys and in the upstream river basins).
For each catchment corresponding to the measurement points, we mapped the above-mentioned factors. Subsequently, using the principal component analysis (PCA) and a regression model, scores were assigned to calculate the importance of each class of influence factors, in order to quantify the contribution of these factors to the TDS. The results showed that lithology (the dominance of the marls) and soil texture (clayey soils) play the main role in explaining the TDS concentration measured during the 2016 field campaign, followed by the presence and type of industry (particularly coal extraction) and agriculture. Finally, we verified the regression model based on the measures performed in 2016, by running a sensitivity analysis on the TDS values measured in 2017.
The development of an integrated methodology to improve the understanding of the relationship between the rivers’ TDS and the environmental drivers has reduced the uncertainty over the contribution of some factors to the TDS variation, which, until now, had been considered mostly theoretically.
Microbiological treatment of water by cold plasma at atmospheric pressure
Authors: Cubas Anelise , Machado Marina , Moecke Elisa
Published: November 2022

Ensuring the world's population access to drinking water is one of the millennium's challenges, for although our planet is made up of 70% of water, poor distribution and water quality are problems that concern world leaders, being among the objectives of development 2030 agenda set by the ONU. The proposed work aimed at the microbiological treatment of water through cold plasma technology at atmospheric pressure, the control to confirm the efficiency of the treatment was through the analysis of thermotolerant coliforms. The reduction was 93.33% for thermotolerant coliforms and cold plasma technology reduces the time of microbiological treatment of water by 90% over traditional methods due to high energy density, ozone generation and ultraviolet radiation, thus reducing costs because the energy expenditure was low and there is no need to add chemicals.
Triclosan occurrence in European Sewage Treatment Plants and risk assessment for the European rivers
Authors: Stasinakis Athanasios , Thomaidi Vasiliki , Matsoukas Christos
Published: November 2022

The purpose of this study was to estimate the environmental risk associated with the existence of triclosan (TCS) released from municipal wastewater in the European rivers. A literature review was held to record the concentration levels of TCS in effluents of European Sewage Treatment Plants (STPs), while toxicity data was collected for aquatic organisms (algae, Daphnia magna and fish). Risk assessment was based on both Risk Quotient (RQ) methodology and Monte Carlo simulation. According to the results, TCS monitoring data was available for 349 STPs located in 15 out of the 50 European countries. Its mean concentrations ranged between 2.2 ng L-1 and 47,800 ng L-1. The 95th percentile of RQ was higher than 1 (in algae) for rivers with dilution factors (DFs) equal to or lower than 100, when maximum concentration was used, whereas the 95th percentile of RQ exceeded 1 for rivers with DFs up to 10, in cases where the calculations were based on mean concentration values. The probability that RQ exceeds 1 in rivers (for algae) ranged from 0.2% (DF = 1000) to 45% (DF = 2), when calculations were based on mean concentration values.
Recovery of sulphuric acid and valuable metals (Zn, Cu and REE) from acidic mine waters using nanofiltration
Authors: López J. , Reig M. , Vecino X. , Valderrama C. , Gibert O. , Cortina J.L.
Published: November 2022

Acidic mine waters (AMWs) contains moderate concentrations of sulphuric acid, relatively high concentrations of metals (Al, Fe, Cu and Zn) and minor amounts or rare earth elements (REE). The established management routes for AMW treatment include a neutralization-precipitation step, which implies a high cost due to the reagents consumption. Nanofiltration (NF) membranes are emerging as an alternative to conventional methods to treat AMW due to a good passage of mono-charged ions (e.g. hydrogen sulphate, proton) for further recovery of sulphuric acid and high rejection of multi-charged ions, such as transition metals and REE. The behavior of one typical NF membrane (NF270, poly(piperazinamide)) was tested in a cross-flow experimental set-up with model solutions at pH 1.0. Moreover, experimental results were modelled according to Solution-Electro-Diffusion Model coupled with reactive transport to characterize the transport of species across the membrane, by means of the membrane permeances. Finally, the performance of NF270 working at batch mode was predicted with the obtained membrane permeances.
Use of the microalgae Chlorella Sorokiniana for municipal wastewater treatment: batch experiments
Authors: Stasinakis Athanasios , Kotoula Danae , Iliopoulou Athanasia , Irakleous-Palaiologou Eleni , Gatidou Georgia , Aloupi Maria , Fountoulakis Michael
Published: November 2022

Batch experiments were conducted in order to investigate the use of microalgae Chlorella sorokiniana for the treatment of different types of municipal wastewater (raw sewage, anaerobically treated wastewater, aerobically treated wastewater) and investigate the role of light and addition of ammonium on its growth. All experiments were conducted in triplicates and lasted for 7 days. Several parameters were monitored during the experiments in order to check the experimental conditions (pH, temperature, DO), the growth of biomass and the removal of major pollutants (COD, NH4-N, PO4-P, NO3-N) from wastewater. According to the results, the target microalgae can be sufficiently developed in raw and anaerobically treated sewage, while it can remove an important part of the major pollutants found in raw sewage, reaching up to 94%, for COD, 99% for PO4-P and 94% for NO3-N. The addition of NH4-N in aerobically treated does not enhance growth of biomass, while the application of mixotrophic conditions (16h light/8h dark) enhanced microalgae growth and major pollutants’ removal.
Acid generation and heavy metal leachability from waste lignite disposal sites, Oropos basin, North Attica. An assessment on preliminary data
Authors: Stouraiti C , Kampouroglou E , Kollias K , Papassiopi N
Published: November 2022

Lignite mining in the Oropos Neogene basin (North Attica), especially in the areas of Milesi and Markopoulo, operated since last century and ceased in the late 1960’s. Piles of complex waste material consisting of lignite tailings and waste rocks are dispersed in the area between the above mentioned mining sites. Environmental characterization of waste piles is performed by applying leaching tests (EN12457, EN15875) as well as bulk geochemical analysis. Mineralogical study revealed that pyrite is the dominant sulfide phase in local wastes. The high sulfur content and low paste pH and Net Neutralization Potential, i.e. values < -20 CaCO3 kg/t in most analyzed samples, all clearly indicate that the waste is prone to acid generation. The analysis of water leachates showed high concentrations in Ni, Zn and Cd, exceeding the EU regulatory limits for the non-hazardous wastes. The preliminary results suggest that the lignite waste pose a potential threat for ground water contamination close to the waste disposal fields due to acid generation and heavy metal mobilization from the lignite matrix or the waste rock.
Impact of traffic management strategies on air quality and health in a Portuguese urban area
Authors: Silveira Carlos , Ferreira Joana , Lopes Diogo , Miranda Ana
Published: November 2022

This paper aims to assess the air quality improvement and resulting health implications in a Portuguese urban area, by testing traffic management scenarios focused on nitrogen dioxide (NO2) emission reduction. To that end, an integrated multiscale modelling system was developed and applied for a typical traffic-activity day using dynamical downscaling to the street level. At this finer scale, the tested scenarios contributed to a reduction of the daily maximum NO2 concentration and health benefits, though the LEZ effect is more felt within its influence area.
Method Development for the Determination of Heavy Metals such as Copper, Iron, Manganese and Zinc in Aluminium Alloys by ICP-OES, based on wastewater analysis method
Authors: Pantazis K. , Gkogkaki V. , Karageorgis A.
Published: November 2022

The determination of Heavy Metals such as Copper, Iron, Manganese and Zinc in Aluminium Alloys is usually achieved following ASTM E3061-17 Method. Alternatively, for time and cost saving, the laboratory’s ΕΝ ISO 11885:2009 method for wastewater analysis was appropriately modified producing satisfactory results. Parameters such as matrix effect, wavelength, plasma conditions, calibration standards and dilution conditions of the alloy were examined for the accurate measurement of these elements in Aluminium Alloys (e.g. CRMs, according to their Certified Values).
Recovery of rare earth elements from luminophores using the red alga Galdieria
Authors: Vítová Milada , Čížková Mária , Bišová Kateřina , Zachleder Vilém , Mezricky Dana , Rucki Marián
Published: November 2022

The red alga Galdieria phlegrea was used as an experimental organism to test bioaccumulation of rare earth elements (REEs) from luminophores. Algal cells were cultured mixotrophically in a liquid medium with addition of glycerol as a source of carbon. Luminophores from two different sources (fluorescence lamps and energy saving light bulbs) were added into the medium in the form of a powder. The cell number was monitored to follow the growth of the algal culture. The content of single REEs in the luminophores and the biomass were determined using ICP-MS. The most abundant element in both luminophores was yttrium representing about 90%. The growth of cultures grown in the presence of both luminophores was comparable with control. Total amount of accumulated REEs in biomass differed with type and concentration of the luminophore used for treatment. The most abundant element accumulated in the biomass was lanthanum. To conclude, Galdieria phlegrea can grow in the presence of luminophores and accumulate REEs. The enriched biomass is a promising template for biotechnological applications.
Project was supported by the program Interreg V-A ATCZ172, the National Programme of Sustainability I, ID: LO1416 and by Institutional Research Concept no. AV0Z61388971.
Challenges for the development of green organizations
Authors: Grudziński Adam , Sulich Adam
Published: November 2022

The ecological nature of the organization is one of the important topics discussed in the field of the theory of durable and sustainable development and CSR practices. What is more, being a "green organization" has become not only fashionable but also beneficial. Ecological issues are discussed in many documents formulated by private and public entities. Many organizations try to call themselves "green" or "sustainable", but there is no consistent definition of a green organization. The aim of this article is to define a green organization and to identify challenges for their development. The article adopts qualitative methods that distinguish three main aspects of the possible definition of green organizations.