Integrated aerobic granular sludge and membrane process for enabling municipal wastewater treatment and reuse water production

Wang, Li1,2; Liang, Wenzhong1,2,3; Chen, Wensong1,2; Zhang, Wenxiang1,2; Mo, Jiahao1,2; Liang, Kaiguo1,2; Tang, Bing1,2; Zheng, Yi4; Jiang, Feng5

2018-04

10.1016/j.cej.2017.12.078

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Aerobic granular sludge (AGS), as an aggregate of numerous self-immobilized functional microorganisms, has been recognized as an increasingly viable option for wastewater treatment and reuse water production. This study aimed at evaluating the application of AGS reactor as primary, ultrafiltration (UF) as secondary and nanofiltration (NF) as tertiary treatment for the treatment of municipal wastewater, focusing on determining the membrane fouling mechanism and reuse water production. AGS reactor, UF and NF exhibit high removal efficiency for COD (51.33%, 90.48% and 99.26%) and nutrients (53.63%, 94.84% and 98.06% total nitrogen, and 49.8%, 97.07% and 98.73% phosphorus), indicating that the integrated aerobic granular sludge and UF/NF process could provide high pollution removal and quality reuse water. As for filtration behavior of UF and NF, shear stress produced by agitation speed could significantly improve flux, due to the dispersion of pollutants. Besides, for AGS, improved simultaneous nitrification and denitrification by the internal anaerobic, anoxic, and aerobic structure and the richer biological community increased foulant removal, while the larger pore size and mature structure also reduced foulant deposition. Moreover, shear stress also diminished the total fouling resistance, reversible fouling and irreversible fouling, as well membrane cleaning efficiency was promoted, by controlling AGS deposition on membrane. In addition, the fouling mechanism of conventional floc sludge and that of AGS were deeply analyzed and respectively compared, from three aspects, namely, Scanning Electron Microscope (SEM), Attenuated Total Reflection Fourier Transform Infrared Spectroscopy (ATR-FTIR) and Atomic Force Microscope (AFM). Overall, the results demonstrated an alternative option for water treatment and reuse water production in an integrated AGS and membrane process.

Aerobic granular sludge (AGS) Ultrafiltration (UF) Nanofiltration (NF) Membrane fouling Reuse water

SCI ; EI

英语

其他

Scientific Research Fund of Guangdong University of Technology[220413582]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:000427616900031

ELSEVIER SCIENCE SA

20175204589943

Atomic force microscopy ; Efficiency ; Fourier transform infrared spectroscopy ; Granular materials ; Membrane fouling ; Membranes ; Nanofiltration ; Nitrification ; Nitrogen removal ; Pore size ; Scanning electron microscopy ; Shear stress ; Ultrafiltration ; Wastewater reclamation ; Wastewater treatment ; Water conservation ; Water pollution ; Water treatment

Water Resources:444 ; Water Treatment Techniques:445.1 ; Industrial Wastes Treatment and Disposal:452.4 ; Water Pollution:453 ; Optical Devices and Systems:741.3 ; Chemistry:801 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Production Engineering:913.1 ; Materials Science:951

ENGINEERING

Web of Science

1.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China
2.Guangdong Univ Technol, Inst Environm Hlth & Pollut Control, Guangzhou 510006, Guangdong, Peoples R China
3.Minist Environm Protect, South China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China
4.South Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
5.South China Normal Univ, Sch Chem & Environm, Guangzhou, Guangdong, Peoples R China

Wang, Li,Liang, Wenzhong,Chen, Wensong,et al. Integrated aerobic granular sludge and membrane process for enabling municipal wastewater treatment and reuse water production[J]. CHEMICAL ENGINEERING JOURNAL,2018,337:300-311.

Wang, Li.,Liang, Wenzhong.,Chen, Wensong.,Zhang, Wenxiang.,Mo, Jiahao.,...&Jiang, Feng.(2018).Integrated aerobic granular sludge and membrane process for enabling municipal wastewater treatment and reuse water production.CHEMICAL ENGINEERING JOURNAL,337,300-311.

Wang, Li,et al."Integrated aerobic granular sludge and membrane process for enabling municipal wastewater treatment and reuse water production".CHEMICAL ENGINEERING JOURNAL 337(2018):300-311.