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Spatial distribution of water quality in Belawan River, North Sumatra

IOP Conference Series: Earth and Environmental Science 2021年第1期713卷

作者： A Mirandha Irvan H Wahyuningsih Master Program in Department of Natural Resources and Environmental Management Universitas Sumatera Utara Padang Bulan Medan 20155 Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Sumatera Utara Padang Bulan Medan 20155 Indonesia Department of Biology Faculty of Mathematics and Natural Sciences Universitas Sumatera Utara Padang Bulan Medan 20155 Indonesia

Belawan river is one of the rivers in North Sumatera Province. Belawan river which crosses Deli Serdang District and Medan City is used for the activities of plantation, agriculture, livestock, sand mining, a place for bathing and washing as well as serving as a lavatory, hospital, hotel, settlements, and industry. Utilization of the river as a wastewater disposal site can cause a decrease in the quality of river water. The purpose of this research was to analyze the Belawan river water quality spatially. Water sampling was taken at nine points which included three upstream segment points in Deli Serdang District, three middle segment points in Deli Serdang District and Medan City, and three downstream segment points in Deli Serdang District. Based on the results of the research it can be concluded that the value of Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) at several monitoring points in Belawan river has exceeded the water quality standard limits of class I Government Regulation of Republic of Indonesia Number 82 the year 2001 and North Sumatera Governor Regulation Number 21 the year 2006.

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Effectiveness of Situ for Ciliwung Flood Mitigation in Bogor Regency

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IOP Conference Series: Earth and Environmental Science 2020年第1期477卷

作者： Claudia Tyas Nugraheni Hidayat Pawitan Yanuar Jarwadi Purwanto Iwan Ridwansyah Postgraduate Program in Natural Resources and Environmental Management IPB Bogor Indonesia Department of Geophysics and Meteorology IPB Bogor Indonesia Department of Civil and Environmental Engineering IPB Bogor Indonesia Limnology Research Center LIPI Bogor Indonesia

Bogor Regency is one of Regencies in Jabodetabek area that is experiencing rapid urban growth. This condition impacted the decreasing conditions of 39's from 95's urban small lakes or locally known as 'situ'. This research aims to analyze the effectiveness of situ Kebantenan and situ Cikaret as Ciliwung flood mitigation measure in the Bogor Regency. The SWAT model was employed for quantification the water balance of situ and watershed management. The simulation results of the water balance analysis indicated that the monthly average of volume of Situ Kabantenan and Situ Cikaret (2008-2015) were 136,955 m3 and 508,907 m3, the annual inflow Situ Cikaret were 24,693,822 m3/year and outflow were 25,177,593 m3/year, precipitation were 648,520 m3/year, evaporation were 166,543 m3/year, delta storage (1,794) m3/year, respectively. The result of hydrological responses analysis on application of situ and watershed management scenarios that combined the structural and non-structural measures was the best scenario for decreasing maximum discharge at situ outlet which is decreased 41% discharge. So that, in order to enhance the effectiveness of situs for Ciliwung flood mitigation, the combination of the structural and non structural management of 13 situ's in Ciliwung river basin within the Bogor Regency is recommended that can increase the storage capacity from 1.8 million m3 to 4.7 million m3.

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Fabrication of organo-silica thin film for water desalination from dual silicate precursor (tetraethylorthosilicate & methyltriethoxysilane)

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AIP Conference Proceedings 2023年第1期2682卷

作者： Dewi Puspita Sari Muthia Elma Mahmud Mahmud Basir Basir Mita Riani Rezki Rahmawati Rahmawati Lilis Septyaningrum Gesit Satriaji Saputro Aulia Rahma 1Natural Resource and Environmental Management Department Pascasarjana Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia 2Chemical Engineering Department Faculty of Engineering Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia 4Wetland-Based Materials Research Center Lambung Mangkurat University Banjarbaru 70714 Indonesia 5Environmental Science Department Postgraduate Program Lambung Mangkurat University Jl. Brigjen H. Hasan Basri Kayu Tangi Banjarmasin 70123 Indonesia 3Environmental Engineering Department Faculty of Engineering Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia

A modification of silica structure is urgently needed to improve silica-based matrices applied for water desalination. It is due to the hydrophilic properties owned by pure silica structures, and it is also caused by the silica pore was collapse during ions water exposed on membrane surfaces. According to that, this study is aimed to fabricate and to observe the innovation of silica membranes modified matrices by mixing the main precursor of tetraethylorthosilicate (TEOS) and methyltriethoxysilane (MTES) as sources of silicate as well as carbon applied for water desalination. The mixtures of MTES:TEOS (10:90) was mixed with acid-base catalysts using sol gel method. This process and reaction were held for 3 h nonstop. The modified organo-silica sols were dried by oven for 24 h and grinded into powder that called xerogel. Then it was calcined using furnace for 1 h at 350 and 450 °C using RTP (rapid thermal processing) method which under variation of condition (vacuum and air/atmosphere). Functionalization of modified organo-silica membranes were investigated using FTIR spectra and Fityk software. The results show the modified organo-silica derived from MTES (as a carbon source) exhibited the functionalization of siloxane (Si-O-Si), silanol (Si-OH), and silica-carbon (Si-C) functional groups. The optimum organo-silica MTES:TEOS mixture was obtained from sample calcined at 450 °C under vacuum calcination. The presence of carbon bonds causes the pores formed tend to be small but strong so it is suitable for application in the desalination process.

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Novel carbon templated silica membrane prepared from Nypa fruticans leaf for seawater desalination

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AIP Conference Proceedings 2023年第1期2682卷

作者： Elsa Nadia Pratiwi Muthia Elma Mahmud Mahmud Basir Basir Mita Riani Rezki Era Nandita Radiya Oktaviana Siti Fatimah Gesit Satriaji Saputro Erdina Lulu Atika Rampun Aulia Rahma 1Natural Resource and Environmental Management Department Pascasarjana Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia 2Chemical Engineering Department Faculty of Engineering Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia 4Wetland-Based Materials Research Center Lambung Mangkurat University Banjarbaru 70714 Indonesia 5Environmental Science Department Postgraduate Program Lambung Mangkurat University Jl. Brigjen H. Hasan Basri Kayu Tangi Banjarmasin 70123 Indonesia 3Environmental Engineering Department Faculty of Engineering Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia

Inorganic material applied for membrane technology such as silica is well employed for water desalination nowadays. Silica membrane is favorable to use to offer high selectivity and robust materials. However, it also has a debility due to unstable matrices when contact to water. Nypa fruticans leaf was fundamentally containing carbon which is potential as templating agent to enhanced the hydro-stability. The objective of this work is to investigate performance of nypa-silica membrane for desalination of seawater. Nypa-silica membrane prepared by mixing silica sol and carbon from nypa (0.1, 0.5 and 2.5 %) for 90 min at cold temperature. Then membrane support was immersed into nypa-silica sol by dipcoater and calcined at 350 and 450°C under inert atmosphere condition via rapid thermal processing (RTP) technique. Silica-nypa membranes were tested by seawater desalination (3.5 wt% NaCl) by pervaporation. Carbon from nypa gave a good impact to silica base membrane performance depends on template loading. Increasing concentration of nypa may reduce water flux of permeate. The result of membrane in this work rather low water flux. However, all of membranes show great salt rejection >99.9%. Interestingly, the permeate salt concentration of all silica-nypa membranes performed less than 600 ppm of limited total dissolved salt on drinking water according to standards given by the World Health Organization (WHO).

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Water quality, plankton community, and pollution index in the spawning habitat of longtail shad (Tenualosa macrura) in the waters of Bengkalis, Meranti Island and Siak Regencies, Riau Province

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IOP Conference Series: Earth and Environmental Science 2021年第1期744卷

作者： V Seygita Sulistiono C Kusmana G Yulianto Study Program of Natural Resources and Environmental Management Science Postgraduate School IPB University (Bogor Agricultural University) Kampus IPB Baranangsiang Jl. Raya Padjajaran Bogor 16151. Kota Bogor. Indonesia Department of Aquatic Resources Management Faculty of Fisheries and Marine Science IPB University (Bogor Agricultural University) Jl. Agatis Kampus IPB Dramaga Bogor 16680 Indonesia Department of Silviculture Faculty of Forestry IPB University Bogor 16680 Indonesia

The waters of Bengkalis (as the estuary of Siak River) in Meranti and Siak Regencies of Riau Province is known as longtail shad (Tenualosa macrura) spawning area. This study aims to describe the condition of the waters of the fish spawning habitat. Sampling was conducted for three months from September to November 2019. The physical, chemical, and biological parameters were observed i.e. temperature, depth and transparency, salinity, TSS, pH, DO, nitrate (NO3), phosphate (PO4), BOD, lead (Pb), and mercury (Hg), plankton abundance, and diversity. The result showed the waters temperatures, depth, transparency, salinity, TSS, pH, and DO varied i.e., 26.7-30.3 °C, 4-30 m, 0.27-0.835 m, 25-30 ppt, <3-88 mg/l, 7, and 5.9-7.9 mg/l, respectively. The nitrate, phosphate, BOD, Pb, and Hg were 0.617-2.196 mg/l, 0.006-1.666 mg/l, 0.80-11 mg/l, 0.002-0.094 mg/l and <1 mg/l respectively. The most common genera of phytoplankton were Trichodesmium sp. (37.293 to 596.688 cells/m3), while the most abundant zooplankton was Tintinnopsis sp (8.421-54.135 cells/m3). According to the study, it is known that the water condition of the fish habitat was reasonably good. However, the nitrate and phosphate in the waters passed the quality standard threshold for fisheries.

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Retraction notice to "Managing the invisible threat of microplastics in marine ecosystems: Lessons from coast of the Bay of Bengal" [Sci. Total Environ. 889 (2023) 164224]

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The Science of the total environment 2024年 957卷 177730页

作者： Al-Nure Mubin Shahoriar Arefin Md Sonir Mia Abu Reza Md Towfiqul Islam A B M Mainul Bari Md Saiful Islam Mir Mohammad Ali Md Abu Bakar Siddique M Safiur Rahman Venkatramanan Senapathi Abubakr M Idris Guilherme Malafaia Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh. Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh Department of Development Studies Daffodil International University Dhaka 1216 Bangladesh. Department of Industrial and Production Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh. Department of Soil Science Patuakhali Science and Technology University Dumki Patuakhali 8602 Bangladesh. Department of Aquaculture Sher - e - Bangla Agricultural University Dhaka 1207 Bangladesh. Institute of National Analytical Research and Service (INARS) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh. Analytical Chemistry Laboratory Chemistry Division Atomic Energy Centre Dhaka (AECD) Bangladesh Atomic Energy Commission Dhaka 1000 Bangladesh. Department of Disaster Management Alagappa University Karaikudi Tamilnadu India. Department of Chemistry College of Science King Khalid University Abha 62529 Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha Saudi Arabia. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil.

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Ten decadal advances in fungal biology leading towards human well‑being

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Fungal Diversity 2022年第5期116卷 547-614页

作者： Ausana Mapook·Kevin DHyde Kevin D.Hyde Khadija Hassan Blondelle Matio Kemkuignou Adela Cmokova Frank Surup Eric Kuhnert Pathompong Paomephan Tian Cheng Sybren de Hoog Yinggai Song Ruvishika S.Jayawardena Abdullah M.S.Al‑Hatmi Tokameh Mahmoudi Nadia Ponts Lena Studt‑Reinhold Florence Richard‑Forget K.W.Thilini Chethana Dulanjalee L.Harishchandra Peter E.Mortimer Huili Li Saisamorm Lumyong Worawoot Aiduang Jaturong Kumla Nakarin Suwannarach Chitrabhanu S.Bhunjun Feng‑Ming Yu Qi Zhao Doug Schaefer Marc Stadler Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Department Microbial Drugs Helmholtz Centre for Infection Research(HZI)and German Centre for Infection Research(DZIF)Partner Site Hannover‑BraunschweigInhoffenstrasse 738124 BrunswickGermany Institute of Microbiology Technische Universitat BraunschweigSpielmannstrase 738106 BrunswickGermany Laboratory of Fungal Genetics and Metabolism Institute of MicrobiologyCzech Academy of SciencesPragueCzech Republic Centre of Biomolecular Drug Research(BMWZ) Institute for Organic ChemistryLeibniz University HannoverSchneiderberg 3830167 HannoverGermany Department of Biotechnology Faculty of ScienceMahidol University272 Rama VI RoadRatchathewiBangkok 10400Thailand Center of Expertise in Mycology Radboud University Medical Center/Canisius Wilhelmina HospitalNijmegenThe Netherlands Key Laboratory of Environmental Pollution Monitoring and Disease Control Guizhou Medical UniversityGuiyangChina Microbiology Parasitology and Pathology Graduate ProgramFederal University of ParanaCuritibaBrazil Department of Dermatology Peking University First HospitalPeking UniversityBeijingChina Natural and Medical Sciences Research Center University of NizwaNizwaOman Department of Biochemistry Erasmus University Medical CenterRotterdamThe Netherlands INRAE UR1264 Mycology and Food Safety(MycSA)33882 Villenave d’OrnonFrance Department of Applied Genetics and Cell Biology Institute of Microbial GeneticsUniversity of Natural Resources and Life SciencesVienna(BOKU)Tulln an der DonauAustria Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China Institute of Plant ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina Centre for Mountai

Fungi are an understudied resource possessing huge potential for developing products that can greatly improve human *** the current paper,we highlight some important discoveries and developments in applied mycology and interdisciplinary Life Science *** examples concern recently introduced drugs for the treatment of infections and neurological diseases;application of–OMICS techniques and genetic tools in medical mycology and the regulation of mycotoxin production;as well as some highlights of mushroom cultivaton in *** for new diagnostic tools in medical mycology and the exploitation of new candidates for therapeutic drugs,are also *** addition,two entries illustrating the latest developments in the use of fungi for biodegradation and fungal biomaterial production are *** other areas where there have been and/or will be significant developments are also *** is our hope that this paper will help realise the importance of fungi as a potential industrial resource and see the next two decades bring forward many new fungal and fungus-derived products.

关键词： Biomaterial CRISPR Drug development Morel cultivation Mushroom cultivation Mycotoxin biosynthesis Plastic degradation

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Effect of addition cetyltrimethylammonium bromide on morphology and functional groups of composite membrane bacterial nanocellulose - Titanium dioxide

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AIP Conference Proceedings 2023年第1期2634卷

作者： Heru Suryanto Bili Darnanto Susilo Aminnudin Irma K. Kusumaningrum Uun Yanuhar 1Center of Excellence for Cellulose Composite (CECCom) Department of Mechanical Engineering Universitas Negeri Malang Jl. Semarang 5 Malang 65145 Indonesia 2Centre of Advanced Material for Renewable Energy (CAMRY) Universitas Negeri Malang Jl. Semarang 5 Malang 65145 Indonesia 3Master Program of Mechanical Engineering Universitas Negeri Malang Jl. Semarang 5 Malang 65145 Indonesia 4Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Negeri Malang Jl. Semarang 5 Malang 65145 Indonesia 5Department of Waters resources Management Faculty of Fisheries and Marine Sciences Brawijaya University Jl. Veteran Malang East Java Indonesia

This research investigates bacterial nanocellulose (BNC) composite reinforced with Titanium Dioxide (TiO2) in terms of morphology and membrane functional groups. Cetyltrimethylammonium Bromide (CTAB) was used as a surfactant. The purpose of this research is to investigate the effect of addition CTAB on the membrane composite. Bacterial cellulose (BC) pellicle was produced from the extract of pineapple peel waste. Acetobacter xylinum was used as the fermentation agent. The solution of 1% NaOH was applied for removing the BC pellicle impurities. Mechanical treatment and high pressure homogenize process had been done to synthesize BNC. The composite membranes were synthesized by using a mixture of BNC, TiO2 1%, and CTAB with different mass percentages, 0.5%, 1%, and 2%, and then the composite solution was dried by the oven for 14 hours at 80 °C. Properties of the composite membrane can be known based on its morphology and functional groups. Scanning Electron Microscope was used to observe the morphology. The results show that a higher concentration of CTAB makes BNC structure became more porous, and TiO2 particles spread more uniformly. FTIR analysis was conducted in range of 682cm-1, 862cm −1, 1041cm −1 and 3421 cm−1. Successively, they are the position of the C-OH, C-H, C-O-C, and O-H function clusters.

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Impacts of the Covid-19 pandemic on traditional oil mining at Wonocolo Village Kedewan Sub-District Bojonegoro Regency East Java

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IOP Conference Series: Earth and Environmental Science 2021年第1期623卷

作者： L A Rahmawati N Afiati T T Putranto Doctoral Program in Environmental Science School of Postgraduate Universitas Diponegoro Semarang Central Java Indonesia 50273 Environmental Science Universitas Bojonegoro Lettu Suyitno No.2 Bojonegoro East Java Indonesia 62119 Department of Aquatic Resources Management Faculty of Fisheries and Marine Sciences Universitas Diponegoro Semarang Central Java Indonesia 50275 Department of Geology Engineering Faculty of Engineering Universitas Diponegoro Semarang Central Java Indonesia 50275

Mining in the world consists of modern and traditional mining. Various studies have discussed how field workers were precarious at being exposed to Covid-19 in modern mining. Many studies discuss ways of modern mines overcoming Covid-19, but discussion of research related to the impacts of Covid-19 on traditional mining has not been carried out. This study addressed the effect of the Covid-19 pandemic on traditional oil mining in Wonocolo, Bojonegoro Regency. This work is a descriptive study using observation and in-depth interviews and reviewing secondary data related to conventional mining activities. The results showed that the Covid-19 pandemic has an indirect effect on traditional oil mining activities in Wonocolo. The pandemic caused a decrease in demand, a drop in selling prices, lower production, and temporary closure of wells in Wonocolo traditional mining. In contrast, Covid-19 did not directly affect miners' activities since the miners believed that Covid-19 could not infect them due to the very extreme condition in the mining area that the Coronavirus would not survive.

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Toxicity assessment of SARS-CoV-2-derived peptides in combination with a mix of pollutants on zebrafish adults: A perspective study of behavioral, biometric, mutagenic, and biochemical toxicity

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The Science of the total environment 2023年第PT 2期858卷 159838页

作者： Ítalo Nascimento Freitas Amanda Vieira Dourado Amanda Pereira da Costa Araújo Sindoval Silva de Souza Thiarlen Marinho da Luz Abraão Tiago Batista Guimarães Alex Rodrigues Gomes Abu Reza Md Towfiqul Islam Md Mostafizur Rahman Andrés Hugo Arias Davoodbasha Mubarak Ali Chinnasamy Ragavendran Chinnaperumal Kamaraj Guilherme Malafaia Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil. Post-Graduation Program in Environmental Sciences Federal University of Goiás Goiânia GO Brazil. Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Begum Rokeya University Department of Disaster Management Rangpur 5404 Bangladesh. Laboratory of Environmental Health and Ecotoxicology Department of Environmental Sciences Jahangirnagar University Dhaka 1342 Bangladesh. Instituto Argentino de Oceanografía (IADO) Universidad Nacional del Sur (UNS)-CONICET Florida 8000 Complejo CCT CONICET Bahía Blanca Edificio E1 B8000BFW Bahía Blanca Argentina. Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Darussalam. Department of Conservative Dentistry and Endodontics Saveetha Dental College and Hospitals Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai India. Interdisciplinary Institute of Indian System of Medicine (IIISM) Directorate of Research and Virtual Education SRM Institute of Science and Technology (SRMIST) Kattankulathur 603203 Tamil Nadu India. Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Electronic address: guilhermeifgoiano@***.

The dispersion of SARS-CoV-2 in aquatic environments via the discharge of domestic and hospital sewage has been confirmed in different locations. Thus, we aimed to evaluate the possible impacts of zebrafish (Danio rerio) exposure to SARS-CoV-2 peptide fragments (PSPD-2001, 2002, and 2003) alone and combined with a mix of emerging pollutants. Our data did not reveal the induction of behavioral, biometric, or mutagenic changes. But we noticed an organ-dependent biochemical response. While nitric oxide and malondialdehyde production in the brain, gills, and muscle did not differ between groups, superoxide dismutase activity was reduced in the "PSPD", "Mix", and "Mix+PSPD" groups. An increase in catalase activity and a reduction in DPPH radical scavenging activity were observed in the brains of animals exposed to the treatments. However, the "Mix+PSPD" group had a higher IBRv2 value, with NO levels (brain), the reduction of acetylcholinesterase activity (muscles), and the DPPH radical scavenging activity (brain and muscles), the most discriminant factors for this group. The principal component analysis (PCA) and hierarchical clustering analysis indicated a clear separation of the "Mix+PSPD" group from the others. Thus, we conclude that exposure to viral fragments, associated with the mix of pollutants, induced more significant toxicity in zebrafish adults than in others.

关键词： Biomarkers COVID-19 Danio rerio Freshwater ecosystems Non-target organisms Novel coronavirus

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