Effect of salt concentration on biological treatment of saline wastewater by fed-batch operation

被引：162

作者：

Kargi, F

Dincer, AR

机构：

[1] Dept. of Environmental Engineering, Dokuz Eylul University, Bornova, Izmir

[2] Dept. of Environmental Engineering, College of Engineering, Dokuz Eylul University, Bornova

来源：

ENZYME AND MICROBIAL TECHNOLOGY | 1996年 / 19卷 / 07期

关键词：

saline wastewater; biological wastewater treatment; fedbatch operation;

D O I：

10.1016/S0141-0229(96)00070-1

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The performance of biological treatment processes for saline wastewater is usually low due to adverse effects of salt on microbial flora. High salt concentrations in wastewater cause plasmolysis and loss of cell activity, thereby resulting in low (COD) removal efficiencies, In order to quantify the adverse effects of salt on biological treatment of saline wastewater a synthetic wastewater composed of dilute molasses, urea, KH2PO4, and various concentrations of salt (1-5% NaCl) was treated under aerobic conditions in a biological reactor by fedbatch operation. Zooglea ramigera was used as the dominant culture throughout the studies. Variations in the COD removal rate and the efficiency with salt concentration were determined. A rate expression indicating the inhibition effects of salt was proposed. Kinetic constants were determined by using experimental data. (C) 1996 by Elsevier Science Inc.

引用

页码：529 / 537

页数：9

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