Carbon dioxide sequestration and methane production promotion by wollastonite in sludge anaerobic digestion

被引：18

作者：

Zhang, Yan ^{[1
,2
,3
]}

Zhang, Lihui ^{[1
]}

Liu, He ^{[1
,2
,3
]}

Gong, Linlin ^{[1
]}

Jiang, Qianqian ^{[1
]}

Liu, Hongbo ^{[1
,2
,3
]}

Fu, Bo ^{[1
,2
,3
]}

机构：

[1] Jiangnan Univ, Sch Environm & Civil Engn, Wuxi 214122, Peoples R China

[2] Jiangsu Key Lab Anaerob Biotechnol, Wuxi 214122, Peoples R China

[3] Jiangsu Collaborat Innovat Ctr Water Treatment Te, Suzhou 215011, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 272卷

基金：

中国国家自然科学基金;

关键词：

Waste activated sludge; Anaerobic digestion; CO2; sequestration; Mineral carbonation; Wollastonite; SEWAGE-SLUDGE; PRETREATMENT METHODS; WASTE; BIOGAS; WATER; INHIBITION; ENHANCEMENT; DISSOLUTION; KINETICS; IMPACT;

D O I：

10.1016/j.biortech.2018.10.004

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study investigated the feasibility and performance of simultaneous in-situ CO2 sequestration and CH4 production promotion by wollastonite addition in sludge AD. A maximum CH4 yield increment of 30.8% and maximum methane production rate increment of 64.9% with wollastonite addition at dosage of 16.25 g/L were achieved. CO2 was efficient sequestered by wollastonite addition and resulted in a higher CH4 content of 81.7%-82.4%. The mechanism of CO2 sequestration by wollastonite was confirmed as Ca2+ release and subsequently carbonation based on cation and precipitates analysis. The results demonstrated that wollastonite could be applied as an effective additive for simultaneous in-situ CO2 sequestration and CH4 production promotion of sludge AD.

引用

页码：194 / 201

页数：8

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