Effect of sludge age on simultaneous nitrification and denitrification in membrane bioreactor

被引：68

作者：

Hocaoglu, S. Murat ^{[2
]}

Insel, G. ^{[3
]}

Cokgor, E. Ubay ^{[3
]}

Orhon, D. ^{[1
,3
]}

机构：

[1] Turkish Acad Sci, TR-06550 Ankara, Turkey

[2] TUBITAK Marmara Res Ctr, Inst Environm, TR-41470 Gebze, Kocaeli, Turkey

[3] ITU, Dept Environm Engn, Insaat Fak, TR-34469 Istanbul, Turkey

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 12期

关键词：

Membrane bioreactor; Simultaneous nitrification/denitrification (SNdN); Modelling; Sludge age; Black water; DOMESTIC WASTE-WATER; ACTIVATED-SLUDGE; NUTRIENT REMOVAL; NITROGEN REMOVAL; SYSTEMS; OXYGEN; REACTOR; MODEL; PERFORMANCE; DESIGN;

D O I：

10.1016/j.biortech.2011.03.096

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study evaluated the effect of sludge age on simultaneous nitrification and denitrification in a membrane bioreactor treating black water. A membrane bioreactor with no separate anoxic volume was operated at a sludge age of 20 days under low dissolved oxygen concentration of 0.1-0.2 mg/l. Its performance was compared with the period when the sludge age was adjusted to 60 days. Floc size distribution, apparent viscosity, and nitrogen removal differed significantly, together with different biomass concentrations: nitrification was reduced to 40% while denitrification was almost complete. Modelling indicated that both nitrification and denitrification kinetics varied as a function of the sludge age. Calibrated values of half saturation coefficients were reduced when the sludge age was lowered to 20 days. Model simulation confirmed the validity of variable process kinetics for nitrogen removal, specifically set by the selected sludge age. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：6665 / 6672

页数：8

共 46 条

[1]

*APHA AWWA WPCP, 2005, STAND METH EX WAT WA

[2] Design of SBR systems for nutrient removal from wastewaters subject to seasonal fluctuations [J].

Artan, N ;

Orhon, D ;

Tasli, R .

WATER SCIENCE AND TECHNOLOGY, 2002, 46 (08) :91-98

[3] The mechanism and design of sequencing batch reactor systems for nutrient removal -: the state of the art [J].

Artan, N ;

Wilderer, P ;

Orhon, D ;

Morgenroth, E ;

Özgür, N .

WATER SCIENCE AND TECHNOLOGY, 2001, 43 (03) :53-60

[4]

ARTAN N, 2004, J ENV SCI HLTH A, V39, P1819

[5] Membrane Bioreactor (MBR) treatment of segregated household wastewater for reuse [J].

Atasoy, Elif ;

Murat, Selda ;

Baban, Ahmet ;

Tiris, Mustafa .

CLEAN-SOIL AIR WATER, 2007, 35 (05) :465-472

[6] Sequencing batch membrane reactor treatment: Nitrogen removal and membrane fouling evaluation [J].

Choo, KH ;

Stensel, HD .

WATER ENVIRONMENT RESEARCH, 2000, 72 (04) :490-498

[7] INHIBITORY EFFECT OF REFRACTORY ORGANIC-COMPOUNDS PRODUCED BY ACTIVATED-SLUDGE MICROORGANISMS ON MICROBIAL ACTIVITY AND FLOCCULATION [J].

CHUDOBA, J .

WATER RESEARCH, 1985, 19 (02) :197-200

[8] Shortcut biological nitrogen removal in hybrid biofilm/suspended growth reactors [J].

Chung, Jinwook ;

Bae, Wookeun ;

Lee, Yong-Woo ;

Rittmann, Bruce E. .

PROCESS BIOCHEMISTRY, 2007, 42 (03) :320-328

[9] Characterization and comparison of a membrane bioreactor and a conventional activated-sludge system in the treatment of wastewater containing high-molecular-weight compounds [J].

Çiçek, N ;

Franco, JP ;

Suidan, MT ;

Urbain, V ;

Manem, J .

WATER ENVIRONMENT RESEARCH, 1999, 71 (01) :64-70

[10] Diffusion of oxygen through activated sludge flocs: Experimental measurement, modeling, and implications for simultaneous nitrification and denitrification [J].

Daigger, Glen T. ;

Adams, Craig D. ;

Steller, Holley Kaempfer .

WATER ENVIRONMENT RESEARCH, 2007, 79 (04) :375-387

← 1 2 3 4 5 →