title: Modeling the Activated Sludge--Thickening Process in Secondary Settlers.
abstract: A single paragraph of about 200 words maximum. For research articles; abstracts should give a pertinent overview of the work. We strongly encourage authors to use the following style of structured abstracts; but without headings: (1) BACKGROUND: Place the question addressed in a broad context and highlight the purpose of the study; (2) METHODS: Describe briefly the main methods or treatments applied; (3) RESULTS: Summarize the article's main findings; and (4) CONCLUSION: Indicate the main conclusions or interpretations. The abstract should be an objective representation of the article: it must not contain results which are not presented and substantiated in the main text and should not exaggerate the main conclusions.
authors.affiliation: School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China. zyk11@ruc.edu.cn.
authors.forename: Yuankai
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China. yinxunfei2009@163.com.
authors.forename: Xunfei
authors.initials: X
authors.lastname: Yin
authors.affiliation: School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China. hezhijiang@ruc.edu.cn.
authors.forename: Zhijiang
authors.initials: Z
authors.lastname: He
authors.affiliation: School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China. zxj@ruc.edu.cn.
authors.forename: Xiangjun
authors.initials: X
authors.lastname: Zhang
authors.affiliation: School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China. wenyanggrf@126.com.
authors.forename: Yang
authors.initials: Y
authors.lastname: Wen
authors.affiliation: School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China. whc@ruc.edu.cn.
authors.forename: Hongchen
authors.initials: H
authors.lastname: Wang
mesh_terms: D006801:Humans; D008962:Models, Theoretical; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D012722:Sewage
keywords: compression zone; secondary settlers; sludge settling; sludge thickening; sludge volume index