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131.
Soni Tiwari Priyanka Rai Santosh Kumar Yadav Rajeeva Gaur 《Environmental science and pollution research international》2013,20(6):4046-4058
The present study was aimed to characterize physico-chemical and microbial population of distillery effluent and isolate a novel thermotolerant bacterium for color, COD, and BOD reduction of spentwash. The level of alkalinity, TSS, DO, COD, BOD, TN, ammonical nitrogen, nitrate nitrogen, phosphorous, potassium, chloride, and calcium of spentwash (SW), bioreactor effluent (BE), and secondary treated effluent (STE) were well above the permissible limits. The level of color, TS, and TDS were under the permissible limits for STE but not for SW and BE. The microbial population was higher in BE. The results revealed that effluent was highly polluted and require suitable treatment before discharge. A novel thermotolerant bacterium, identified as Pediococcus acidilactici, was isolated which exhibited maximum 79 % decolorization, 85 % COD, and 94 % BOD reduction at 45 °C using 0.1 %, glucose; 0.1 %, peptone; 0.05 %, MgSO4; 0.05 %, K2HPO4; pH 6.0 within 24 h under static condition. The ability of this strain to decolorize melanoidin at minimum carbon and nitrogen supplementation warrants its possible application for effluent treatment at industrial level. In addition, it is first instance when melanoidin decolorization was reported by P. acidilactici. This study could be an approach towards control of environmental pollution and health hazards of people in and around the effluent distillery unit. 相似文献
132.
Aim of the present study is to determine the in-vitro cell cytotoxic effect of native and transformed cancer drugs (cyclophosphamide and etoposide) using three different white rot fungi (Ganoderma lucidum, Phanerochaete chrysosporium and Trametes versicolor). At 3, 6, 9, 12 and 15 days, experiments were done on a mouse monocyte macrophage cell line (Raw 264.7). After biodegradation, the altered compounds were found to be harmful to the Raw 264.7 cells. The maximal cytotoxicity of cyclophosphamide transformed products (TPs) were determined to be 2.4%, 7.3% and 7% respectively, against G. lucidum, P. chrysosporium and T. versicolor, respectively. With G. lucidum, P. chrysosporium and T. versicolor, the etoposide toxicity was 1.5%, 8% and 2.7% respectively. P. chrysosporium-mediated biodegradation resulted in the maximum toxicity, at 8%, on the 12th day for etoposide and 7.3% on the 3rd day for cyclophosphamide. After biodegradation by fungi, the toxicity of these two anticancer agents was reduced in the form of metabolites, but each fungus showed unique capacity for toxicity removal. 相似文献
133.
Nagar Bhuvnesh Rawat Sushma Pandey Rajiv Kumar Munesh Alatalo Juha M. 《Environment, Development and Sustainability》2022,24(4):5594-5613
Environment, Development and Sustainability - Trees are important as a source of fuelwood and fodder for rural populations in the Himalayas. This paper analysed the fuelwood and fodder consumption... 相似文献
134.
Akhilesh Kumar Yadav Sunil Kumar Sahoo Swagatika Mahapatra A. Vinod Kumar Govind Pandey Pradyumna Lenka 《毒物与环境化学》2013,95(2):192-200
The present work deals with the determination of uranium concentrations in drinking and ground water samples by laser fluorimetry and calculation of cumulative, age-dependent radiation doses to humans. The concentrations were found to be between 0.20 ± 0.03 and 64.0 ± 3.6 μg L?1, with an average of 11.1 ± 1.5 μg L?1, well within the drinking water limit of regulatory bodies. The concentrations of uranium increase with depth of water samples collection. The estimated annual ingestion dose due to the intake of uranium through drinking water for all age groups varied between 0.2 and 137 μSv a?1, with an average of 17.3 μSv a?1. The mean annual ingestion dose is 5% of the global average ingestion dose, for infants, marginally higher than for other age group. Most effective dose values were less than 20 μSv a?1. 相似文献
135.
The effect of antioxidant rich diet supplements of Spirulina and tamarind fruit pulp at 230 mg kg?1 body weight, separately as well as in combination, on various hematological parameters of Swiss albino mice exposed to fluoride for seven days at daily doses of 190 mg kg?1 body weight and for 90 days at daily doses of 94 mg kg?1 body weight is reported. Compared with controls, fluoride exposure decreased erythrocyte (12%–18%), leukocyte (16%) and platelet counts (7%, only for short-term exposure), hemoglobin (2%–17%) and packed cell volume (2%–14%) in Swiss albino mice reared on standard feed but these were altered little in the diet supplement groups. Fluoride exposure decreased lymphocytes in both standard feed (16%–21%) and diet supplement groups (5%–19%, but only after long-term exposure). Fluoride withdrawal led to recovery of the post-treated mice from long-term exposure. Spirulina alone and also in combination with tamarind fruit pulp was found more effective than tamarind alone in reducing hematological disorders in fluoride treated mice. 相似文献
136.
Srivastava Pratiksha Gupta Supriya Garaniya Vikram Abbassi Rouzbeh Yadav Asheesh Kumar 《Environmental Chemistry Letters》2019,17(2):1045-1051
Environmental Chemistry Letters - Microbial fuel cells are used as an alternative source of energy and for microbial degradation of waste and pollutants. Different types of microbial fuel cells... 相似文献
137.
Verma Neha Pandit Soumya Gupta Piyush Kumar Kumar Sanjay Kumar Anil Giri Shiv Kumar Yadav Gulab Priya Kanu 《Environmental science and pollution research international》2022,29(21):30954-30966
Environmental Science and Pollution Research - Long-term exposure to organic solvents is known to affect human health posing serious occupational hazards. Organic solvents are genotoxic, and they... 相似文献
138.
Environment, Development and Sustainability - As per the objective of the present experimental investigation, influence of various configurations of manifolds for optimum flow distribution in... 相似文献
139.
140.
本文构建了2.0L具有微生物隔膜的模块化生物阴极微生物燃料电池(MFC),以实际生活污水为底物,在连续流运行模式中,系统考察了微生物隔膜(MS)在MFC长期运行过程中的功能特征.结果表明:发育成熟的微生物隔膜可以稳定维持MFC阴阳极室间的溶解氧(DO)浓度梯度,使阳极室平均DO浓度低于0.5mg/L,同时使完全混合的阴... 相似文献