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Characteristics of ORP variation in subsurface wastewater infiltration system (SWIS) under hydraulic loading rate (HLR) fluctuation
Li, HB (Li, Haibo)[ 1 ] ;  Bai, JN (Bai, Jianing)[ 1 ] ;  Li, YH (Li, Yinghua)[ 1,2 ] ;  Zhang, XR (Zhang, Xiaorong)[ 1 ] ;  Ma, JF (Ma, Jifu)[ 3 ] ;  Yang, ZX (Yang, Zhongxin)[ 1 ] ;  Yu, W (Yu, Wei)[ 1 ]
2019-01
Source PublicationDESALINATION AND WATER TREATMENT
Volume138Pages:49-56
Contribution Rank3
AbstractSubsurface wastewater infiltration system (SWIS) is a small-scale land treatment technology used for sewage deep purification, especially for nitrogen removal, based on the combined effects of physical, physical-chemical, and biological mechanism. Although it has been accepted widely that the oxidation-reduction potential (ORP) in the matrix bed plays a crucial role in the SWIS purification process, the ORP variation characteristics have not been revealed completely. To make it clear, a SWIS with mixed matrix was constructed in greenhouse. The system worked successfully under a drying-wetting alternate operation with five different hydraulic loading rates (HLRs) for over 4 months. The ORP was monitored in the depths of 25, 40, 65, 95, and 145 cm in the matrix bed using depolarization ORP detection probes. Results indicated that with the increase of HLR, the ORP variation was more obvious. ORP variation of the different matrix layers was different, the ORP of the upper matrix layer would produce a rising-descending variation in drying-wetting alternate operation and the middle matrix layer was on the contrary. The ORP fluctuation of the lower matrix layer was little. Results suggested that the fluctuation of HLR did not affect the periodic variation of ORP in each depth of matrix bed, but it would affect the variation range. And different temperatures can lead to changes in ORP.
KeywordNITROGEN REMOVAL INTERMITTENT AERATION POLLUTANTS REMOVAL PERFORMANCE REACTOR PH
DOI10.5004/dwt.2019.23289
Language英语
WOS IDWOS:000454437500006
PublisherDESALINATION PUBL
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/11267
Collection生态环境研究室
Affiliation1.Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110004, Liaoning, Peoples R China
2.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA
3.Chinese Acad Sci, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Li, HB , Bai, JN , Li, YH ,et al. Characteristics of ORP variation in subsurface wastewater infiltration system (SWIS) under hydraulic loading rate (HLR) fluctuation[J]. DESALINATION AND WATER TREATMENT,2019,138:49-56.
APA Li, HB ., Bai, JN ., Li, YH ., Zhang, XR ., Ma, JF .,...& Yu, W .(2019).Characteristics of ORP variation in subsurface wastewater infiltration system (SWIS) under hydraulic loading rate (HLR) fluctuation.DESALINATION AND WATER TREATMENT,138,49-56.
MLA Li, HB ,et al."Characteristics of ORP variation in subsurface wastewater infiltration system (SWIS) under hydraulic loading rate (HLR) fluctuation".DESALINATION AND WATER TREATMENT 138(2019):49-56.
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