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

IR > 土木工程学院

	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, Huining5 ; Wang, Meng 6; Hu, Junxian 7
	2021-12-20
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	801
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.
关键词	Simultaneous nitrification-denitrification and phosphorus removal Stability and functionality Phosphorus recovery Sludge reduction Extracellular polymeric substances
DOI	10.1016/j.scitotenv.2021.149569
收录类别	EI ; SCOPUS ; SCIE
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000701725600003
出版者	ELSEVIER
EI入藏号	20213410798584
EI主题词	Recovery
EI分类号	452.4 Industrial Wastes Treatment and Disposal - 802.2 Chemical Reactions - 804 Chemical Products Generally
来源库	WOS
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148545
专题	土木工程学院
通讯作者	Hu, Junxian; Xu, Peng
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
第一作者单位	土木工程学院
通讯作者单位	土木工程学院
第一作者的第一单位	土木工程学院
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).