Microaeration for hydrogen sulfide removal in UASB reactor

被引：83

作者：

Krayzelova, Lucie ^{[1
]}

Bartacek, Jan ^{[1
]}

Kolesarova, Nina ^{[2
]}

Jenicek, Pavel ^{[1
]}

机构：

[1] Prague Inst Chem Technol, Dept Water Technol & Environm Engn, CR-16628 Prague 6, Czech Republic

[2] Slovak Univ Technol Bratislava, Dept Chem & Environm Engn, Bratislava 81237, Slovakia

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 172卷

关键词：

Microaeration; UASB reactor; Elemental sulfur accumulation; Sulfur balance; Hydrogen sulfide removal; ANAEROBIC-DIGESTION; WASTE-WATER; ORGANIC WASTES; SLUDGE; SULFUR; HYDROLYSIS; SULFATE; OPTIMIZATION; OXIDATION; AERATION;

D O I：

10.1016/j.biortech.2014.09.056

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The removal of hydrogen sulfide from biogas by microaeration was studied in Up-flow Anaerobic Sludge Blanket (UASB) reactors treating synthetic brewery wastewater. A fully anaerobic UASB reactor served as a control while air was dosed into a microaerobic UASB reactor (UMSB). After a year of operation, sulfur balance was described in both reactors. In UASB, sulfur was mainly presented in the effluent as sulfide (49%) and in biogas as hydrogen sulfide (34%). In UMSB, 74% of sulfur was detected in the effluent (41% being sulfide and 33% being elemental sulfur), 10% accumulated in headspace as elemental sulfur and 9% escaped in biogas as hydrogen sulfide. The efficiency of hydrogen sulfide removal in UMSB was on average 73%. Microaeration did not cause any decrease in COD removal or methanogenic activity in UMSB and the elemental sulfur produced by microaeration did not accumulate in granular sludge. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：297 / 302

页数：6

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