Effects of tetrakis (hydroxymethyl) phosphonium sulfate pretreatment on characteristics of sewage sludge

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	Effects of tetrakis (hydroxymethyl) phosphonium sulfate pretreatment on characteristics of sewage sludge
	Han, Yunping ; Zhang, Wenzhe ; Yu, Xiao ; Yu, Panfen ; Xiao, Benyi ; Yi, Hao
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2019-04-01
卷号	78 页码:174-182
关键词	Sewage sludge Tetrakis(hydroxymerhyl) phosphonium sulfate Physicochemical properties Microbial community Pathogens
ISSN号	1001-0742
英文摘要	Recently, tetrakis(hydroxymethyl) phosphonium sulfate (THPS) was found to play an important role in the sludge pretreatment process. However, the effects of THPS pretreatment on the characteristics of sewage sludge are still insufficiently understood. The properties of sludge after pretreatment with different concentrations of THPS were investigated in this study. The results showed that pH, dewatering ability, and particle size of sludge decreased with increase in THPS concentration. The volatile suspended solids (VSS) and total suspended solids (TSS) of sludge also decreased slightly with increase in THPS concentration. The specific oxygen uptake rate (SOUR) results suggested that lower THPS concentrations (<= 1.87 mg/g VSS) enhanced the activity of sludge, but higher concentrations (>= 1.87 mg/g VSS) inhibited it. Gram-negative bacteria with peritrichous flagellation (such as Pseudomonas, Escherichia, and Faecalibacterium) were extremely sensitive to THPS. The decrease in specific most probable numbers (MPNs) of pathogens (total coliforms and Escherichia coli) with the increase in THPS concentration also proved the sterilization ability of THPS in the sludge pretreatment process. Pretreatment of sludge with concentrations of THPS higher than 37.41 mg/g VSS would meet the pathogen requirements for land application of Class A biosolids. (c) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43241]
专题	生态环境研究中心_水污染控制实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 3.Minist Environm Protect, South China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China 4.Qingdao Univ, Coll Text & Clothing, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Han, Yunping,Zhang, Wenzhe,Yu, Xiao,et al. Effects of tetrakis (hydroxymethyl) phosphonium sulfate pretreatment on characteristics of sewage sludge[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,78:174-182.
APA	Han, Yunping,Zhang, Wenzhe,Yu, Xiao,Yu, Panfen,Xiao, Benyi,&Yi, Hao.(2019).Effects of tetrakis (hydroxymethyl) phosphonium sulfate pretreatment on characteristics of sewage sludge.JOURNAL OF ENVIRONMENTAL SCIENCES,78,174-182.
MLA	Han, Yunping,et al."Effects of tetrakis (hydroxymethyl) phosphonium sulfate pretreatment on characteristics of sewage sludge".JOURNAL OF ENVIRONMENTAL SCIENCES 78(2019):174-182.