Reduction of sludge generation by the addition of support material in a cyclic activated sludge system for municipal wastewater treatment

被引：12

作者：

de Araujo Junior, Moacir Messias ^{[1
]}

Lermontov, Andre ^{[2
]}

da Silva Araujo, Philippe Lopes ^{[2
]}

Zaiat, Marcelo ^{[3
]}

机构：

[1] Bio Proj Tecnol Ambiental, BR-13560161 Sao Carlos, SP, Brazil

[2] Grp Aguas Brasil, BR-24030211 Niteroi, RJ, Brazil

[3] Univ Sao Paulo, Biol Proc Lab, Ctr Res Dev & Innovat Environm Engn, Seto Carlos Sch Engn EESC, BR-13563120 Sao Carlos, SP, Brazil

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 143卷

关键词：

Biomass yield; Polyurethane foam; MBBR; SBBR; Sewage; NITROGEN REMOVAL; REACTOR; PHOSPHORUS; CUBES;

D O I：

10.1016/j.biortech.2013.06.032

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

An innovative biomass carrier (Biobob (R)) was tested for municipal wastewater treatment in an activated sludge system to evaluate the pollutant removal performance and the sludge generation for different carrier volumes. The experiment was carried out in a pilot-scale cyclic activated sludge system (CASS) built with three cylindrical tanks in a series: an anoxic selector (2.1 m(3)), an aerobic selector (2.5 m(3)) and the main aerobic reactor (25.1 m(3)). The results showed that by adding the Biobob carrier decreased the MLVSS concentration, which consequently reduced the waste sludge production of the system. Having 7% and 18% (v/v) support material in the aerobic reactor, the observed biomass yield decreased 18% and 36%, respectively, relative to the reactor operated with suspended biomass. The addition of media did not affect the system's performance for COD and TSS removal. However, TKM and TN removal were improved by 24% and 14%, respectively, using 18% (v/v) carrier. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：483 / 489

页数：7

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