排序方式: 共有14条查询结果,搜索用时 0 毫秒
11.
Saal Imane Bouchelouche Djaouida Hamache Ceria Arab Abdeslem 《Environmental science and pollution research international》2021,28(34):46565-46579
Environmental Science and Pollution Research - Assessing the water quality of the Kebir-Rhumel watershed by the use of benthic macroinvertebrates and physico-chemical analysis is the aim of this... 相似文献
12.
The emergence of synthetic micropollutants in wastewater due to domestic and industrial use has presented new challenges for treatment processes. Among these pollutants, pharmaceutical and personal care products (PPCPs) are considered emerging contaminants due to their potential to enter drinking water sources. Antibiotics, in particular, are of significant concern due to their high consumption in veterinary and human applications. In this study, the electrocoagulation (EC) process is used as an efficient technique for the removal of cephalexin (CFX) from pharmaceutical wastewater. The study aims to explore the ability of the EC process to remove CFX and optimize its performance using the response surface method based on Central Composite Design (RSM-CCD). The effects of initial CFX concentration, electrolysis time, initial pH, and electrode type (non-insulated and insulated) were considered in the optimization process. This research is distinct as it examines the influence of key factors on the elimination of CFX. The results showed that electrolysis time had the most significant effect on CFX removal using the EC process. The analysis of variance (ANOVA) test was used to evaluate the importance of independent variables and their interaction. The optimal operating conditions for maximum removal efficiency (86.53%) were an initial CFX concentration, reaction time, and initial pH of 34 mg/L, 34.35 min, and 6.5, respectively, using an insulated electrode. Under these optimal conditions, predicted CFX removal was 93.54%. These findings demonstrate that RSM-CCD is a useful tool for optimizing electrochemical removal processes for micropollutants such as CFX from wastewater streams. The study highlights the importance of considering electrode type in optimizing EC processes for micropollutant removal from wastewater. 相似文献
13.
I. Y. Mostafa Abla Ezz El‐Arab S. M. A. D. Zayed 《Journal of environmental science and health. Part. B》2013,48(2):235-243
Abstract A model ecosystem has been used to evaluate the impact of 14C‐lindane on rice‐fish agricultural system. The distribution of 14C‐residues among the constituents of the model ecosystem was studied over a period of 90 days. The insecticide was found to be readily absorbed by the roots and translocated to all parts of the rice plant. The peak level in the shoots (26 ppm) and roots (105 ppm) of plants was reached to within three weeks. Lindane was concentrated in fish and residues as high as 90 ppm could be detected after 30 days. The major part of the residues present in the different constituents of the ecosystem could be extracted with hexane and proved to contain soley the parent compound. The data obtained show that lindane possesses a relatively low biodegradability in fish and in rice plant. The insecticide accumulates in fish and rice plant to considerable extent. 相似文献
14.
Arshadi Mahdokht Esmaeili Alireza Yaghmaei Soheila Arab Bahareh 《Journal of Material Cycles and Waste Management》2022,24(1):83-96
Journal of Material Cycles and Waste Management - In this research, Zn, Ni, and Cu recovery from mobile phone printed circuit boards was investigated. The initial pH and pulp density using... 相似文献