Granulation of anaerobic sludge in the sulfate-reducing up-flow sludge bed (SRUSB) of SANI® process

被引：21
|
作者：
Hao, T. [1 ]
Lu, H. [1 ,2 ]
Chui, H. K. [1 ]
van Loosdrecht, Mark C. M. [3 ,4 ]
Chen, G. H. [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Clear Water Bay, Hong Kong, Peoples R China
[2] Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China
[3] Delft Univ Technol, Dept Biotechnol, NL-2628 BC Delft, Netherlands
[4] KWR Watercycle Res Inst, NL-3433 PE Nieuwegein, Netherlands
来源：
WATER SCIENCE AND TECHNOLOGY | 2013年 / 68卷 / 03期
关键词：
anaerobic sludge granulation; saline wastewater; SANI process; SRUSB; sulfate reduction; REDUCTION; DENITRIFICATION; MINIMIZATION; CALCIUM;
D O I：
10.2166/wst.2013.182
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This study reports on anaerobic sludge granulation in a laboratory-scale sulfate-reducing up-flow sludge bed (SRUSB) in a novel sulfate reduction, autotrophic denitrification and nitrification integrated (SANI (R)) process for treatment of saline sewage. Granulation occurred in 30 d and reached full development in 90 d. The sulfate-reducing granules grew up to around 1 mm after 90 d with 21 mL/g SVI5 (sludge volume index measured after 5 min) and the biomass concentration reached 29 g/L after 4 months' operation. The reactor removed 89% chemical oxygen demand (COD) and reduced 75% sulfate within 1 h of hydraulic retention time, under a COD loading rate of up to 6.4 kg COD/(m(3).d).
引用
收藏
页码：560 / 566
页数：7
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