1. College of Engineering, China Agricultural University, Beijing 100083, China;
2. R & D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee(BGFeuls) Beijing 100083, China;
3. Institute of Yantai, China Agricultural University, Yantai 264670, China
A 180-days¢ continuous experiment with anaerobic membrane reactor (AnMBR) were carried out to treat swine wastewater at mesophilic condition. The organic loading rate (OLR) was increased by shortening the hydraulic retention time (HRT) stepwise through 5, 3 and 2 days. The gas production and performance of AnMBR, specific methanogenic activity (SMA) at different HRTs of the membrane reactor and performance of membrane filtration was studied in this research. With the shortening of HRTs, gas production rate increased from 0.68 to 1.03 and 1.12 L/(L·d). While the TVFA of permeate was less than 500mg/L at the whole operation, which was (169±41) mg/L, (15±3) mg/L and (114±45) mg/L, respectively. Acetate was the main part. The best specific methanogenesis was got at HRT 3days whose value was 1.127g-COD/(g-VSS·d) at 2000mg/L acetate acid concentration. A cycle of membrane fouling was about 4months. The membrane filtration was then recovered by soaking the membrane sheet with 2% citric acid for 3hours. Under the lower flux, the sludge concentration of 7~32g/L in the reactor did not significantly affect the filtration performance of the flat-sheet membrane.
Sánchez E, Borja R, Travieso L, et al. Effect of organic loading rate on the stability, operational parameters and performance of a secondary upflow anaerobic sludge bed reactor treating piggery waste[J]. Bioresource Technology, 2005,96(3):335-344.
[3]
张坤.小型分散养猪场废水处理工艺研究[D]. 南京:南京农业大学, 2014.
[4]
Buzatu P, Lavric V. Optimal Operating Strategies of a Submerged Membrane Bioreactor for Wastewater Treatment[J]. Chemical & Biochemical Engineering Quarterly, 2011,25(1):89-103.
[5]
Christian S, Grant S, Mccarthy P, et al. The first two years of full-scale anaerobic membrane bioreactor (AnMBR) operation treating high-strength industrial wastewater[J]. Water Practice & Technology, 2011,6(2):1-2.
[6]
Xia T, Gao X, Wang C, et al. An enhanced anaerobic membrane bioreactor treating bamboo industry wastewater by bamboo charcoal addition:Performance and microbial community analysis[J]. Bioresource Technology, 2016,220:26-33.
[7]
Smith A L, Stadler L B, Love N G, et al. Perspectives on anaerobic membrane bioreactor treatment of domestic wastewater:a critical review[J]. Bioresource Technology, 2012,122(5):149-159.
[8]
Xuan B, Thanh, Tin N T, et al. Influence of Recirculation Rate on Performance of Membrane Bioreactor Coupling with Ozonation Treating Dyeing and Textile Wastewater[J]. Journal of Water Sustainability, 2013,(2):71-78.
[9]
Hu A Y, Stuckey D C. Treatment of dilute wastewaters using a novel submerged anaerobic membrane bioreactor[J]. Journal of Environmental Engineering, 2006,132(2):190-198.
[10]
Skouteris G, Hermosilla D, López P, et al. Anaerobic membrane bioreactors for wastewater treatment:A review[J]. Chemical Engineering Journal, 2012,198-199(8):138-148.
[11]
Yan T, Ye Y, Ma H, et al. A critical review on membrane hybrid system for nutrient recovery from wastewater[J]. Chemical Engineering Journal, 2018,348:143-156.
Bodík I, Blšt'Áková A, Dan?ová L, et al. Comparison of flat-sheet and hollow-fiber membrane modules in municipal wastewater treatment[J]. Polish Journal of Environmental Studies, 2009,18(3):331-340.
[17]
Clesceri L S, Grenberg A, Eaton A D, et al. Standard methods for the examination of waters and wastewaters[J]. Health Laboratory Science, 2005,4(3):137.
[18]
Güngör-Demirci G, Demirer G N. Effect of initial COD concentration, nutrient addition, temperature and microbial acclimation on anaerobic treatability of broiler and cattle manure[J]. Bioresource Technology, 2004,93(2):109-117.
[19]
国家环保局.水和废水监测分析方法[M]. 北京:中国环境科学出版社, 1997.
[20]
Rieger C, Weiland P. Prozessstörungen frühzeitig erkennen[J]. Biogas Journal, 2006,6(4):18-20.
Wandera S M, Qiao W, Algapani D E, et al. Searching for possibilities to improve the performance of full scale agricultural biogas plants[J]. Renewable Energy, 2018,116:720-727.
Padmasiri S I, Zhang J, Fitch M, et al. Methanogenic population dynamics and performance of an anaerobic membrane bioreactor (AnMBR) treating swine manure under high shear conditions[J]. Water Research, 2007,41(1):134-144.
Zhao H W, Viraraghavan T. Analysis of the performance of an anaerobic digestion system at the Regina Wastewater Treatment Plant[J]. Bioresource Technology, 2004,95(3):301-307.
Regueiro L, Veiga P, Figueroa M, et al. Relationship between microbial activity and microbial community structure in six full-scale anaerobic digesters[J]. Microbiological Research, 2012,167(10):581-589.
