Net biomass production under complete solids retention in high organic load activated sludge process

被引：29

作者：

Amanatidou, Elisavet ^{[1
]}

Samiotis, Georgios ^{[1
]}

Bellos, Dimitrios ^{[1
]}

Pekridis, George ^{[1
]}

Trikoilidou, Eleni ^{[1
]}

机构：

[1] Technol Educ Inst Western Macedonia, Dept Environm Engn & Pollut Control, Lab Environm Chem & Wastewater Treatment, Kozani, Greece

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 182卷

关键词：

Activated sludge; Complete solids retention; Observed biomass yield; Unbiodegradable organic compounds degradation; Zero net biomass growth; WASTE-WATER TREATMENT; MEMBRANE BIOREACTOR; ENDOGENOUS RESIDUE; PERFORMANCE; REDUCTION; MINIMIZATION; GROWTH; PLANT;

D O I：

10.1016/j.biortech.2015.01.119

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The effect of complete solids retention on net biomass production, at a slaughterhouse's activated sludge wastewater treatment process, was studied for 425 days. The process reached equilibrium after 150 days. In equilibrium phase, and until the end of the study, relative constant MLVSS to MLSS ratio, low food to microorganisms ratio (F/M), low substrate utilization rate (SUR) and negligible observed sludge yield (Y-obs) were measured. Y-obs fluctuated between positive and negative values (+/- 0.03 gVSS gCOD(-1)), tending zero mean values, and leading to the conclusion that zero net sludge growth can be achieved. The high BODultimate/COD ratio and the zero sludge accumulation, leads to the conclusion that all fractions of organic matter, including cell debris, are biodegradable. The results were verified by comparing the measured Y-obs values and those predicted using a conventional activated sludge model (ASM) and a modified ASM that incorporates the slow hydrolysis concept of the unbiodegradable compounds. (c) 2015 Elsevier Ltd. All rights reserved.

引用

页码：193 / 199

页数：7

共 35 条

[1] Minimization of excess sludge production by increase of oxygen concentration in activated sludge flocs;: Experimental and theoretical approach [J].

Abbassi, B ;

Dullstein, S ;

Räbiger, N .

WATER RESEARCH, 2000, 34 (01) :139-146

[2]

Amanatidou E., 2015, EVALUATING SEDIMENTA, DOI [10.1016/j.watres.2014.10.061, DOI 10.1016/J.WATRES.2014.10.061]

[3]

[Anonymous], 2010, SLUDGE REDUCTION TEC

[4]

APHA/AWWA/WEF, 2012, Standard methods for the examination of water and wastewater. Standard methods, twenty second edStandard methods for the examination of water and wastewater. Standard Methods, twenty second

[5]

Bellos D., 2012, Patent, Patent No. 1007711

[6] DECREASED SLUDGE PRODUCTION STRATEGY FOR DOMESTIC WASTE-WATER TREATMENT [J].

CANALES, A ;

PAREILLEUX, A ;

ROLS, JL ;

GOMA, G ;

HUYARD, A .

WATER SCIENCE AND TECHNOLOGY, 1994, 30 (08) :97-106

[7] Treatment of slaughterhouse wastewater using an activated sludge/contact aeration process [J].

Chen, CK ;

Lo, SL .

WATER SCIENCE AND TECHNOLOGY, 2003, 47 (12) :285-292

[8] Minimization of sludge production by a side-stream reactor under anoxic conditions in a pilot plant [J].

Coma, M. ;

Rovira, S. ;

Canals, J. ;

Colprim, J. .

BIORESOURCE TECHNOLOGY, 2013, 129 :229-235

[9]

Corbitt R.A., 1998, STANDARD HDB ENV ENG, V2nd

[10] Biodegradability of slaughterhouse wastewater with high blood content under anaerobic and aerobic conditions [J].

del Pozo, R ;

Tas, DO ;

Dulkadiroglu, H ;

Orhon, D ;

Diez, V .

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2003, 78 (04) :384-391

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