Tracking the inorganic suspended solids through biological treatment units of wastewater treatment plants

被引：18
|
作者：
Ekama, G. A. [1 ]
Wentzel, M. C. [1 ]
Sotemann, S. W. [1 ]
机构：
[1] Univ Cape Town, Dept Civil Engn, Water Res Grp, ZA-7701 Rondebosch, Cape, South Africa
来源：
WATER RESEARCH | 2006年 / 40卷 / 19期
基金：
新加坡国家研究基金会;
关键词：
wastewater treatment; influent inorganic suspended solids; primary settling; anaerobic digestion; activated sludge; aerobic digestion; model validation;
D O I：
10.1016/j.watres.2006.05.034
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
From an experimental and theoretical investigation of the continuity of influent inorganic suspended solids (ISS) along the links connecting the primary settling tank (PST), fully aerobic or N removal activated sludge (AS) and anaerobic and aerobic digestion (AerD) unit operations, it was found that (i) the influent wastewater (fixed) ISS concentration is conserved through primary sludge anaerobic digestion, and AS and AerD unit operations. However, the measured ISS flux at different stages through a series of WWTP unit operations is not equal to the influent ISS flux because the ordinary heterotrophic organisms (OHO) biomass contributes to the ISS flux by differing amounts depending on the OHO (active) fraction of the VSS solids at that stage. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3587 / 3595
页数：9
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