文献详情
Contribution of solid and liquid fractions of sewage sludge pretreated by high pressure homogenization to biogas production
文献类型：期刊
通讯作者：Zhang, PY (reprint author), Beijing Forestry Univ, Coll Environm Sci & Engn, Qinghua East Rd 35, Beijing 100083, Peoples R China.
期刊名称：BIORESOURCE TECHNOLOGY影响因子和分区
年：2019
卷：286
ISSN：0960-8524
关键词：HPH pretreatment; Separation of sludge solid and liquid; Biogas production; Organic release; Sludge particle decrease
所属部门：环境学院
摘要：High pressure homogenization (HPH) pretreatment can effectively enhance anaerobic sludge digestion. In order to understand the corresponding mechanisms, different homogenization pressures were applied on sewage sludge, and solid and liquid fractions were separately digested to clarify contribution of solid and liquid fractions to biogas production. Results showed that the methane was mainly produced from solid fraction, and methane yield was increased with the increase of pretreatment pressure. ...More
High pressure homogenization (HPH) pretreatment can effectively enhance anaerobic sludge digestion. In order to understand the corresponding mechanisms, different homogenization pressures were applied on sewage sludge, and solid and liquid fractions were separately digested to clarify contribution of solid and liquid fractions to biogas production. Results showed that the methane was mainly produced from solid fraction, and methane yield was increased with the increase of pretreatment pressure. The biogas and methane production from sludge (digested without solid-liquid separation) was 17% and 45% higher than the sum of that from solid and liquid fractions (digested separately) under a pressure of 40 MPa, respectively. This indicated that the sludge liquid fraction synergistically improved the biodegradation of sludge solids. The improvement of anaerobic digestion was attributed to organic release by sludge disintegration, sludge disruption and further increase of particle surface area. The methane production was linear with effectiveness of HPH pretreatment. ...Hide

DOI：10.1016/j.biortech.2019.121378
百度学术：Contribution of solid and liquid fractions of sewage sludge pretreated by high pressure homogenization to biogas production
语言：外文
被引频次：6
人气指数：3
浏览次数：3
基金：Natural Science Foundation of Hunan Province, ChinaNatural Science Foundation of Hunan Province [2016JJ2020]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51578068]; Major Science and Technology Program for Water Pollution Control and Treatment [2013ZX07202-010]
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