Performance of HABR plus MSABP system for the treatment of dairy wastewater and analyses of microbial community structure and low excess sludge production

被引：21

作者：

Chang, Mingdong ^{[1
]}

Wang, Youzhao ^{[1
]}

Zhong, Rui ^{[1
]}

Zhang, Kuo ^{[1
]}

Pan, Yuan ^{[1
]}

Lyu, Liting ^{[1
]}

Zhu, Tong ^{[1
]}

机构：

[1] Northeastern Univ, Sch Mech Engn & Automat, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 311卷

基金：

中国国家自然科学基金;

关键词：

Hybrid anaerobic baffled reactor; Multi-stage active biological process; Response surface methodology; Bacterial community; Excess sludge production; ANAEROBIC BAFFLED REACTOR; HYDRAULIC RETENTION TIME; UASB REACTOR; ACTIVATED-SLUDGE; DOMESTIC SEWAGE; OPTIMIZATION; REMOVAL;

D O I：

10.1016/j.biortech.2020.123576

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The potential of the system, a hybrid anaerobic baffled reactor (HABR) coupled with a multi-stage active biological process (MSABP) reactor, for simulated dairy wastewater at various temperature, hydraulic retention time (HRT), and pH was investigated. Percentage removals of chemical oxygen demand (COD) and NH4+ were optimized using response surface methodology. Under optimized conditions (temperature, 33 degrees C; HRT, 24 h; pH, 7.35), the removal efficiencies of COD and NH4+ were 99.89% and 97.83%, respectively. Miseq sequencing analysis exhibited that the anaerobic segment of the system was dominated by fermentation and acetogenic bacteria, and in the aerobic segment, microorganisms involved in the nitrogen cycle were significantly enriched. Meanwhile, it could be found that the excess sludge production of the process was much lower than that of other bio-processes. The average excess sludge production rate was 0.025-0.05 g SS/g COD removed under different organic loadings.

引用

页数：11

共 41 条

[41] Investigation and optimization of the novel UASB-MFC integrated system for sulfate removal and bioelectricity generation using the response surface methodology (RSM) [J].

Zhang, Baogang ;

Zhang, Jing ;

Yang, Qi ;

Feng, Chuanping ;

Zhu, Yuling ;

Ye, Zhengfang ;

Ni, Jinren .

BIORESOURCE TECHNOLOGY, 2012, 124 :1-7

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