Abstract: Using partially anaerobic granular sludge and flocculent sludge as seed sludge,aerobic granular sludge is cultivated by gradually decreasing sludge sedimentation time in the sequencing batch reactor (SBR) fed with synthetic wastewater.The effects of different temperature and C/N ratios of influent on the stability of aerobic granular sludge are investigated as well.It is found that the cultivation of aerobic granular sludge needs to spend only 30 days,the average granular sizes of aerobic granular sludge is 3 mm,its sludge volumetric index (SVI) is around 37 mL·g-1,and it exhibits good sedimentation performance.The determining results by scanning electron microscopy show there are many holes on the surface of granular.The impact of low cultivation temperature (10℃) and normal cultivation temperature (20℃) on the shapes of aerobic granular sludge is not significant.Under low cultivation temperature,however,the water quality indexes of effluent are unstable,and the removal rates of COD,NH3-N,TN all are lower than that under normal cultivation temperature.The C/N ratio has not obvious impact on COD removal rate,but has more obvious effect on nitrogen removal rate.The aerobic granular sludge will start to lose stability and the removal rate of TN and NH3-N will be less than 60% when C/N ≤ 5.The aerobic granular sludge loses completely its stability when the C/N reduces to 3.
黄思琦, 邓风, 张睿, 佘谱颖, 艾乐仙. 好氧颗粒污泥培养及其稳定性研究[J]. 现代化工, 2018, 38(2): 106-109.
HUANG Si-qi, DENG Feng, ZHANG Rui, SHE Pu-ying, AI Le-xian. Cultivation of aerobic granular sludge and its stability study. Modern Chemical Industry, 2018, 38(2): 106-109.
[1] Zhou J,Yang F L,Meng F G,et al.Comparison of membrane fouling during short-term filtration of aerobic granular sludge and activated sludge[J].J Environ Sci,2007,19(11):1281-1286. [2] 王杰,彭永臻,杨雄,等.不同碳源种类对好氧颗粒污泥合成PHA的影响[J].中国环境科学,2015,35(8):2360-2366. [3] Ferreira V R A,Amorim C L,Cravo S M,et al.Fluoroquinolonesbiosorption onto microbial biomass:Activated sludge and aerobic granular sludge[J].International Biodeterioration & Biodegradation,2016,110:53-60. [4] 赵晴,何青,于鲁冀,等.好氧颗粒污泥技术处理味精废水[J].化工环保,2012,32(04):325-328. [5] Muda K,Aris A,Salim M R,et al.Development of granular sludge for textile wastewater treatment[J].Water Research,2010,44:4341-4350. [6] Su K,Yu H.Formation and characterization of aerobic granules in a sequencing batch reactor treating soybean-processing wastewater[J].Environmental Science & Technology,2005,39:2818-2827. [7] Liu Y,Wu W,Tay J,et al.Starvation is not a prerequisite for the formation of aerobic granules[J].Applied Microbiology And Biotechnology,2007,76:211-216. [8] Adav S S,Lee D,Show K,et al.Aerobic graunlar sludge:Recent advances[J].Biotechnology Advances,2008,26:411-423. [9] 国家环境保护总局.水和废水监测分析方法(第4版)[M].北京:中国环境科学出版社,2002. [10] 周健,柴宏祥,龙腾锐.活性污泥胞外聚合物EPS的影响因素研究[J].给水排水,2005,31(8):19-23. [11] 邓风,张雯,许欣,等.连续流好氧颗粒污泥反应器水力特性及亚硝化影响因素[J].解放军理工大学学报(自然科学版),2009,10(6):639-643. [12] Cassidy D P,Belia E.Nitrogen and phosphorus removal from an abattoir wastewater in a SBR with aerobic granular sludge[J].Water Research,2005,39:4817-4823. [13] 暴瑞玲,于水利,等.SBAR反应器的好氧颗粒污泥低温培养及运行特性[J].中国给水排水,2009,3:23-27. [14] 陈冉妮,高景峰,郭建秋,等.好氧颗粒污泥同步脱氮除磷的常温启动和低温维持[J].环境科学,2009,30(10):2995-3001. [15] 支霞辉,王红武,丁峰,等.常温条件下短程硝化反硝化生物脱氮研究[J].环境科学研究,2006,19(1):26-29.