期刊
CHEMOSPHERE
卷 227, 期 -, 页码 207-215出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2019.04.045
关键词
Rendering plant wastewater; Reclamation; Irrigation; Coagulation; Ultrafiltration; Fouling
资金
- Government of the Republic of Croatia
- Ministry of Science and Education
- Ministry of Environmental and Nature Protection
- Environmental Protection and Energy Efficiency Fund
- Croatian Science Foundation under the project Direct reuse of municipal wastewater for agriculture irrigation with membrane technologies (ReHOHMem) [PKP-2016-06-8522]
The rendering plant secondary effluent (SE) was reclaimed with coagulation, sand filtration and ultrafiltration for reuse in the plant and for potential reuse in irrigation. The best coagulant was selected and the pH and coagulant dosage were optimized with response surface methodology (RSM) to achieve low turbidity, conductivity, and content of carbon at a higher pH. Residual flocs from the coagulation were separated with sand filtration, and afterward, the effluent was treated with six ultrafiltration membranes. The pretreatment (coagulation and sand filtration) drastically reduced fouling (50-95%). The main water parameters (turbidity, conductivity, pH, content of carbon, chemical oxygen demand, and content of cations and anions) were determined in each treatment step. The physico-chemical parameters and microbiological analysis of the resulting permeate showed that it could be reused in the rendering plant for washing purposes, and it satisfies the main regulations and guidelines for wastewater reuse, i.e. US EPA and FAO. (C) 2019 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据