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131.
Ningombam Linthoingambi Devi Ishwar Chandra Yadav Q. I. Shihua Surendra Singh S. L. Belagali 《Environmental monitoring and assessment》2011,177(1-4):23-33
Pulp and paper mills generate varieties of pollutants depending upon type of the pulping process being used. This paper presents the characteristics of wastewater from South India Paper Mill, Karnataka, India which is using recycled waste paper as a raw material. The raw wastewater consists of 80?C90 mg L???1 suspended solid and 1,010?C1,015 mg L???1 dissolved solid. However, pH varied from 5.5?C6.8. The biochemical oxygen demand and chemical oxygen demand ranged from 200?C210 and 1,120?C1,160 mg L???1, respectively. Aerobic treatment of raw effluent attribute to significant reduction in suspended solid (range between 25 to 30 mg L???1) and total dissolved solid (range between 360 to 390 mg L???1). However, pH, temperature, and electrical conductivity were found superior after treatment. Copper, cadmium, iron, lead, nickel, and zinc were found in less quantity in raw effluent and were almost completely removed after treatment. The dendrogram of the effluent quality parameters clearly indicate that South India Paper Mill does not meet Minimal National Standard set by central Pollution Control Board to discharge in agricultural field. 相似文献
132.
Maitreya Anuja Pal Smita Qureshi Asifa Reyed Reyed M. Purohit Hemant J. 《Environmental science and pollution research international》2022,29(4):4911-4929
Environmental Science and Pollution Research - Membrane biofouling in water purification plants is a serious issue of worldwide concern. Various chemical, physical, and biochemical processes are... 相似文献
133.
Das Basanta Kumar Roy Aparna Som Sukanya Chandra Ganesh Kumari Suman Sarkar Uttam Kumar Bhattacharjya Birendra Kumar Das Archan Kanti Pandit Arun 《Environmental science and pollution research international》2022,29(6):8452-8463
Environmental Science and Pollution Research - The COVID-19 pandemic has created unprecedented human health crisis in recent global history with rippling social and economic effects. The outbreak... 相似文献
134.
Kulithalai Shiyam Sundar Parthasarathy Deka Paresh Chandra 《Environmental science and pollution research international》2022,29(57):86220-86236
Environmental Science and Pollution Research - Land use and land cover (LULC) change has become a critical issue for decision planners and conservationists due to inappropriate growth and its... 相似文献
135.
Roy Kumarjyoti Sikdar Debdas Pongwisuthiruchte Aphiwat Debnath Subhas Chandra Potiyaraj Pranut 《Journal of Material Cycles and Waste Management》2022,24(4):1533-1541
Journal of Material Cycles and Waste Management - The application of waste materials based fillers is unique way to achieve rubber composites, which reduces the amount of waste in the environment... 相似文献
136.
Biswas Manik Chandra Jony Bodiuzzaman Nandy Pranab Kumar Chowdhury Reaz Ahmed Halder Sudipta Kumar Deepak Ramakrishna Seeram Hassan Masud Ahsan Md Ariful Hoque Md Enamul Imam Muhammad Ali 《Journal of Polymers and the Environment》2022,30(1):51-74
Journal of Polymers and the Environment - Recently, the advantages of biopolymers over conventional plastic polymers are unprecedented, provided that they are used in situations in which they raise... 相似文献
137.
A method for the solid phase extraction of trace metals, namely Co, Cu, Pb, Ni and Zn, from environmental and biological samples using column Amberlite XAD-7 loaded with 2-hydroxy-propiophenone-4-phenyl-3-thiosemicarbazone (HPPPTSC) and determination by inductively coupled spectrometry (ICP–AES) has been developed. The reagent has the capacity to form chelate complexes with the metals because of three binding sites in the reagent molecule. The optimum experimental conditions for the quantitative sorption of five metals, pH, effect of flow rate, concentration of eluent, sorption capacity and the effect of diverse ions on the preconcentration of analytes have been investigated. The sorption capacity of the resin has 83, 127, 35, 88 and 85?µmol?g?1 for Co2+, Cu2+, Pb2+, Ni2+ and Zn2+, respectively. The preconcentration factors for Co2+, Cu2+, Pb2+, Ni2+ and Zn2+ were 100, 110, 120, 140 and 150, respectively. The accuracy of the proposed procedure was evaluated by standard reference materials. The achieved results were in good agreement with certified values. The proposed method was applied for the determination of trace metals in river water and plant leaves. 相似文献
138.
Nickel-resistant bacteria isolated from underneath Ni-hyperaccumulators growing on serpentine soils were screened for production
of polyhydroxyalkanoates. These rhizobacteria accumulated poly-3-hydroxybutyric acid [P(3HB)] accounting 3.9–67.7% of cell
dry weight during growth in gluconate and/or glucose. Cupriavidus pauculus KPS 201 utilized only gluconate and accumulated about 67.7% P(3HB) while, Bacillus firmus AND 408 utilized both carbon sources for polymer synthesis. The isolates being resistant to Ni also accumulated substantial
amount of P(3HB) when grown in presence of the heavy metal and this was revealed by transmission electron microscopic studies.
Although B. firmus AND 408 produced only P(3HB) at higher concentrations of gluconate, C. pauculus KPS 201 synthesized copolymer of 3-hydroxybutyric acid (3HB) and 3-hydroxyvaleric acid (3HV) [P(3HB-co-3HV)]. In presence
of 0.8% gluconate and 4 mM Ni, KPS 201 cells produced PHA amounting 81% CDW, which contained 76 and 24 mol% 3HB and 3HV monomers,
respectively. 相似文献
139.
Malay Kumar Pramanik Sumantra Sarathi Biswas Biswajit Mondal Raghunath Pal 《Environment, Development and Sustainability》2016,18(6):1635-1655
The Krishna–Godavari coastal region in east coast of India has a 525.15-km-long coastline with low-lying tidal mudflats, beaches, mangrove swamp, creek and tidal channels. Recently, the increasing frequency of tropical cyclones in the Bay of Bengal, i.e., Phylin and Hudhud in Andhra Pradesh coast, and the devastating impact of the 2004 tsunami in India increased the significance in assessing the vulnerability of the coastal lands to inundation and flooding, notably in the context of climate change-induced sea level rise. This study aims to estimate a coastal vulnerability index (CVI) for the coastal subregion of Krishna–Godavari delta and to use the calculated index to evaluate the vulnerability of 14 coastal talukas of the Krishna–Godavari delta region. This CVI is calculated by using four geological and three physical parameters characterizing the vulnerability of the study coastal region, including regional slope, coastal elevation, geomorphology, significant wave height, mean tidal range and relative sea level using different conventional and remotely sensed data. Using a composite coastal vulnerability index based on the relative risk rating of those parameters, each of the 14 coastal talukas was classified according to their vulnerability. The CVI results depict that coasts are least and most vulnerable to inundation, flooding and erosion of coastal lands where geological parameters are more efficient to CVI. The paper alerts to decision makers and planners to mitigate the natural disaster and manage the coastal zone and is a primary step toward prioritizing coastal lands for climate change adaptation strategies in the view of increased storminess and projected sea level rise. 相似文献
140.