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排序方式: 共有70条查询结果,搜索用时 15 毫秒
1.
Widyarsana I Made Wahyu Rahayu Made Ari Indra 《Journal of Material Cycles and Waste Management》2021,23(5):2051-2064
Journal of Material Cycles and Waste Management - This study aims to identify the amount of solid waste generation, composition, and characteristics of the Buleleng sub-district waste. The results... 相似文献
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Mahlia Teuku Meurah Indra Ismail Norasyiqin Hossain Nazia Silitonga Arridina Susan Shamsuddin Abd Halim 《Environmental science and pollution research international》2019,26(15):14849-14866
Environmental Science and Pollution Research - Due to global warming and increasing price of fossil fuel, scientists all over the world have been trying to find reliable alternative fuels. One of... 相似文献
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Walter Knoche E. Reichel H. Plischke J. Bartels K. Kähler K. Knoch 《Die Naturwissenschaften》1931,19(19):403-408
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Julius Bartels 《Die Naturwissenschaften》1946,33(5):140-149
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Kinetic and equilibrium isotherm studies for the adsorptive removal of Brilliant Green dye from aqueous solution by rice husk ash 总被引:3,自引:0,他引:3
The present study deals with the adsorption of Brilliant Green (BG) on rice husk ash (RHA). RHA is a solid waste obtained from the particulate collection equipment attached to the flue gas lines of rice husk fired boilers. Batch studies were performed to evaluate the influences of various experimental parameters like initial pH (pH0), contact time, adsorbent dose and initial concentration (C0) on the removal of BG. Optimum conditions for BG removal were found to be pH0 approximately 3.0, adsorbent dose approximately 6 g L(-1) of solution and equilibrium time approximately 5 h for the C0 range of 50-300 mg L(-1). Adsorption of BG followed pseudo-second-order kinetics. Intra-particle diffusion does not seem to control the BG removal process. Equilibrium isotherms for the adsorption of BG on RHA were analyzed by Freundlich, Langmuir, Redlich-Peterson (R-P), Dubnin-Radushkevich (D-R), and Temkin isotherm models using a non-linear regression technique. Langmuir and R-P isotherms were found to best represent the data for BG adsorption onto RHA. Adsorption of BG on RHA is favourably influenced by an increase in the temperature of the operation. Values of the change in entropy (DeltaS0) and heat of adsorption (DeltaH0) for BG adsorption on RHA were positive. The high negative value of change in Gibbs free energy (DeltaG0) indicates the feasible and spontaneous adsorption of BG on RHA. 相似文献
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Ramalingam K Indra D 《Journal of environmental biology / Academy of Environmental Biology, India》2002,23(2):181-188
A time course study on the sublethal toxicity of CuSO4 on tissue carbohydrate metabolites level and their phosphatases activity in Achatina fulica revealed differential response. The levels of total carbohydrates and glycogen in the body mass muscle, foot muscle and hemolymph revealed their involvement in the endogenous derivation of energy during stress. The same metabolites in digestive gland revealed its importance to reproduction and development. The lactate accumulated in all the tissues implied the mechanism of CuSO4 toxicosis in the metabolic acidosis. The decrease of pyruvate in foot muscle, body mass muscle and hemolymph inferred the preponderance of glycolysis in energy derivation. In contrast, the pyruvate concentration in digestive gland revealed its differential response in the stress metabolic sequence of changes, as a unique tissue. The lactate/pyruvate ratio and the calcium content in tissues constitute direct evidences for the snails adaptation to toxic stress. 相似文献
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