Insights into the simultaneous nitrification, denitrification and phosphorus removal process for in situ sludge reduction and potential phosphorus recovery

doi:10.1016/j.scitotenv.2021.149569

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	Insights into the simultaneous nitrification, denitrification and phosphorus removal process for in situ sludge reduction and potential phosphorus recovery
	He, Qiulai 1; Xie, Zhiyi 1; Tang, Meiyi 2; Fu, Zhidong 1; Ma, Jingwei 1; Wang, Hongyu 3; Zhang, Wei 4; Zhang, Huining 5; Wang, Meng 6; Hu, Junxian 7
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-12-20
卷号	801
关键词	Simultaneous nitrification-denitrification and phosphorus removal Stability and functionality Phosphorus recovery Sludge reduction Extracellular polymeric substances
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.149569
英文摘要	A simultaneous nitrification-denitrification and phosphorus removal (SNDPR) system operated in an alternating anaerobic/aerobic/anoxic (A/O/A) mode was revisited from new perspectives of sludge reduction and potential phosphorus recovery. Reliable and robust removal performance was obtained even under winter temperatures, with average removal efficiency of COD, TP, NH4+-N and TIN being 89.68%, 93.60%, 92.15% and 79.01% at steady state, respectively. Inoculated sludge got enhanced in biomass density, settleability, and bioactivity. And relatively stable amounts of extracellular polymeric substances (EPS) with a stable protein/ polysaccharide (PN/ PS) ratio were observed over operation. Meanwhile, a low observed sludge yield (Yobs) of 0.083 g MLSS/g COD (0.082 g MLVSS/g COD) was obtained. A maximum anaerobic phosphorus release up to 43.54 mg/L was found,thus providing phosphorus-rich and low-turbidity stream for further phosphorus recovery. Overall, the SNDPR system deserved attention for in situ sludge reduction and potential phosphorus recovery, beyond reliable and stable wastewater treatment. (c) 2021 Published by Elsevier B.V.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000701725600003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148545]
专题	土木工程学院
作者单位	1.Hunan Univ, Coll Civil Engn, Key Lab Bldg Safety & Energy Efficiency, Dept Water Engn & Sci,Minist Educ, Changsha 410082, Hunan, Peoples R China; 2.China West Construct Hunan Grp Co Ltd, Changsha 410114, Hunan, Peoples R China; 3.Wuhan Univ, Sch Civil Engn, Wuhan 430072, Hubei, Peoples R China; 4.Changsha Univ Sci & Technol, Sch Hydraul Engn, Changsha 410114, Hunan, Peoples R China; 5.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 6.Jinan Municipal Engn Design & Res Inst Grp Co Ltd, Jinan 250003, Shandong, Peoples R China; 7.Cent South Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China
推荐引用方式 GB/T 7714	He, Qiulai,Xie, Zhiyi,Tang, Meiyi,et al. Insights into the simultaneous nitrification, denitrification and phosphorus removal process for in situ sludge reduction and potential phosphorus recovery[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,801.
APA	He, Qiulai.,Xie, Zhiyi.,Tang, Meiyi.,Fu, Zhidong.,Ma, Jingwei.,...&Xu, Peng.(2021).Insights into the simultaneous nitrification, denitrification and phosphorus removal process for in situ sludge reduction and potential phosphorus recovery.SCIENCE OF THE TOTAL ENVIRONMENT,801.
MLA	He, Qiulai,et al."Insights into the simultaneous nitrification, denitrification and phosphorus removal process for in situ sludge reduction and potential phosphorus recovery".SCIENCE OF THE TOTAL ENVIRONMENT 801(2021).