Decentralized wastewater treatment in an urban setting: a pilot study of the circulating fluidized bed bioreactor treating septic tank effluent

doi:10.1080/09593330.2019.1683614

	Decentralized wastewater treatment in an urban setting: a pilot study of the circulating fluidized bed bioreactor treating septic tank effluent
	Liu, Anqi 1,2,3; Nelson, Michael J.4; Wang, Xiaobo 1,2,3; Li, Haibin 1,2,3; He, Xiaoqin 1,2,3; Zhao, Zengli 1,2,3; Zhong, Huiqiong 1,2,3; Nakhla, George 4; Zhu, Jesse 1,2,3,4
刊名	ENVIRONMENTAL TECHNOLOGY
	2019-11-05
页码	11
关键词	Biological nutrient removal attached growth process high-efficiency process decentralized treatment in-situ treatment
ISSN号	0959-3330
DOI	10.1080/09593330.2019.1683614
通讯作者	Zhu, Jesse(jzhu@uwo.ca)
英文摘要	To meet the increasing wastewater treatment demand while minimizing the land footprint of the treatment systems and plants, more efficient and compact processes are needed. The circulating fluidized bed bioreactor (CFBBR) has been proven to achieve high levels of biological nutrient removal. Past studies at the lab and pilot scale achieved 94% COD removal and 80% nitrogen removal at HRT's of 2-4 h. A collaborative project between Western University and the Guangzhou Institute of Energy Conversion (GIEC), in Guangzhou, China, further explored the treatment of municipal wastewater with the CFBBR. A pilot CFBBR, with aerobic and anoxic columns for nitrification and denitrification, was constructed at the GIEC for in-situ treatment of septic tank effluent from a residential building. Due to high concentrations of ammonia (NH4-N), the wastewater had a COD/N ratio of 2-3. Thus, operating at a longer HRT and supplementing COD, in the form of glucose, was necessary to achieve a high nitrogen removal efficiency. The system was run both with and without supplemental COD at HRT's between 16 and 21 h, treating approximately 1000-1270 L/d. Overall, a COD removal efficiency of at least 92%, ammonia removal of 97%, and nitrogen removal of 82% was achieved. The CFBBR system achieved an effluent with BOD and NH4-N concentrations both below 5 mg/L, a NO3-N concentration below 15 mg/L, and a total nitrogen concentration below 25 mg/L. The compact design of this pilot-CFBBR, coupled with its high BNR performance make it an excellent option for decentralized treatment of urban wastewaters.
资助项目	Technology Planning Project of Guangzhou City[201508020049] ; Guangdong Key Laboratory of New and Renewable Energy Research and Development[Y609jj1001]
WOS关键词	BIOLOGICAL NUTRIENT REMOVAL ; MEMBRANE BIOREACTOR ; SIMULTANEOUS CARBON ; NITROGEN ; MANAGEMENT ; REACTOR
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000493780500001
资助机构	Technology Planning Project of Guangzhou City ; Guangdong Key Laboratory of New and Renewable Energy Research and Development
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26187]
专题	中国科学院广州能源研究所
通讯作者	Zhu, Jesse
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Western Ontario, London, ON N6A 3K7, Canada
推荐引用方式 GB/T 7714	Liu, Anqi,Nelson, Michael J.,Wang, Xiaobo,et al. Decentralized wastewater treatment in an urban setting: a pilot study of the circulating fluidized bed bioreactor treating septic tank effluent[J]. ENVIRONMENTAL TECHNOLOGY,2019:11.
APA	Liu, Anqi.,Nelson, Michael J..,Wang, Xiaobo.,Li, Haibin.,He, Xiaoqin.,...&Zhu, Jesse.(2019).Decentralized wastewater treatment in an urban setting: a pilot study of the circulating fluidized bed bioreactor treating septic tank effluent.ENVIRONMENTAL TECHNOLOGY,11.
MLA	Liu, Anqi,et al."Decentralized wastewater treatment in an urban setting: a pilot study of the circulating fluidized bed bioreactor treating septic tank effluent".ENVIRONMENTAL TECHNOLOGY (2019):11.