Performance of aerobic granular sludge in a sequencing batch bioreactor for slaughterhouse wastewater treatment

被引：76

作者：

Liu, Yali ^{[1
]}

Kang, Xiaorong ^{[1
,2
]}

Li, Xin ^{[1
]}

Yuan, Yixing ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China

[2] Yancheng Inst Technol, Sch Civil Engn, Yancheng 224051, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 190卷

关键词：

Aerobic granular sludge; Slaughterhouse wastewater; Particle size; Extracellular polymeric substances; Specific oxygen demand rates; EXTRACELLULAR POLYMERIC SUBSTANCES; DISSOLVED ORGANIC-MATTER; ACTIVATED-SLUDGE; OXIDIZING BACTERIA; PHOSPHORUS REMOVAL; NITROGEN; SPECTROSCOPY; EXCITATION; REACTORS; SBR;

D O I：

10.1016/j.biortech.2015.03.008

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Lab-scale experiment was conducted to investigate the formation and characteristics of aerobic granular sludge for biological nutrient removal of slaughterhouse wastewater. Experimental results showed that removal performances of chemical oxygen demand (COD), ammonia and phosphate were enhanced with sludge granulation, and their removal efficiencies reached 95.1%, 99.3% and 83.5%, respectively. The aerobic granular sludge was matured after 90 days cultivation, and protein-like substances were the main components. Simultaneously, the mass ratio of proteins and polysaccharides (PN/PS) was enhanced to 2.5 from 1.7. The granules with particle sizes of 0.6-1.2 and 1.2-1.8 mm, accounting for 69.6%, were benefit for the growth of ammonia oxidizing bacteria (AOB) and nitrate oxidizing bacteria (NOB), and corresponding specific oxygen demand rates (SOUR) of AOB and NOB were 31.4 and 23.3 mgO(2)/gMLSS h, respectively. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：487 / 491

页数：5

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