Facilitated UASB granule formation using organic-inorganic hybrid polymers

被引:20
作者
Jeong, HS
Kim, YH
Yeom, SH
Song, BK
Lee, SI
机构
[1] Korea Res Inst Chem Technol, Taejon 305600, South Korea
[2] Korea Inst Sci & Technol Evaluat & Planning, Seoul 137603, South Korea
[3] Chungbuk Natl Univ, Dept Environm Engn, Chungbuk 361763, South Korea
关键词
UASB; organic-inorganic hybrid polymer; granular sludge; COD;
D O I
10.1016/j.procbio.2003.11.041
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Maintaining high concentrations of microorganisms is crucial for the anaerobic treatment of organics. The granulation of sludge is a good method but it takes more than 6 months to form sludge granules spontaneously. In this study, a large amount of granular sludge was prepared within 5 min by adding organic-inorganic hybrid polymers to the sewage digester sludge. The size of the granular sludge ranged from I to 5 mm and its falling velocity was higher than that of the granular sludge from the actual wastewater treatment facility. Since the granule was stable throughout the operation of a UASB, the removal efficiency was as high as 90% at high organic loading rate up to 18 kg-COD/m(3) day. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:89 / 94
页数:6
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