Application of sludge micro bulking technology in low-load domestic sewage treatment
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摘要: 通过对重庆市某镇级污水处理厂研究发现,该污水处理厂污泥体积指数(SVI)为262~380 mL/g,处于污泥膨胀状态。低DO浓度及低污泥负荷是导致该厂处于污泥膨胀的主要原因。活性污泥处于一定程度的微膨胀状态,能够保证CODCr、NH3-N、悬浮物固体(SS)、TP浓度等各项出水指标稳定排放,有利于污水处理厂节能降耗。Abstract: A town sewage treatment plant in Chongqing was studied, and it was found that the sewage treatment plant sludge index (SVI) was between 262-380 mL/g and at the sludge bulking state. Low dissolved oxygen and low sludge load were the main reasons of sludge bulking in the sewage treatment plant. Micro bulking of activated sludge in a certain extent could not only guarantee the stable discharge of CODCr, ammonia nitrogen, SS, TP and other indicators in the effluent, but also be conducive to the energy saving of the sewage treatment plant.
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Key words:
- low load /
- micro bulking of sludge /
- control /
- application
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[1] 彭赵旭 . 低溶解氧丝状菌污泥微膨胀的控制策略研究[D]. 哈尔滨:哈尔滨工业大学, 2012. [2] 高春娣, 武联菊, 郝坤 , 等. 低溶解氧污泥微膨胀的发生及脱氮除磷效果优化[J]. 环境科学, 2010,31(10):2385-2389.GAO C D, WU L J, HAO K , et al. Induction of low dissolved oxygen limited filamentous bulking and optimization of nitrogen and phosphorus removal[J]. Environmental Science, 2010,31(10):2385-2389. [3] 彭永臻, 郭建华, 王淑莹 , 等. 低溶解氧污泥微膨胀节能理论与方法的发现、提出及理论基础[J]. 环境科学, 2008,29(12):3342-3347.PENG Y Z, GUO J H, WANG S Y , et al. Energy saving achieved by limited filamentous bulking under low dissolved oxygen:derivation,originality and theoretical basis[J]. Environmental Science, 2008,29(12):3342-3347. [4] 刘垚 . 微丝菌型活性污泥膨胀的影响因素与调控方法研究[D]. 北京:清华大学, 2016. [5] 崔和平, 钟艳萍 . 丝状菌污泥膨胀的原因及其控制方法[J]. 中国给水排水, 2004,20(6):99-101.
doi: 10.3321/j.issn:1000-4602.2004.06.032CUI H P, ZHONG Y P . Cause and control method of filamentous sludge bulking[J]. China Water & Wastewater, 2004,20(6):99-101. doi: 10.3321/j.issn:1000-4602.2004.06.032[6] VAIOPOULOU P M, AIVASIDIS A . Growth of filamentous bacteria in an enhanced biological phosphorus removal system[J]. Desalination, 2007,213(1):288-296.
doi: 10.1016/j.desal.2006.02.101[7] 刘旭亮, 彭永臻, 彭赵旭 , 等. 高曝气量引发的活性污泥粘性膨胀研究[J]. 中国给水排水, 2011,27(17):1-5.LIU X L, PENG Y Z, PENG Z X , et al. Viscous activated sludge bulking caused by high aeration rate[J]. China Water & Wastewater, 2011,27(17):1-5. [8] TSANG Y F, CHUA H, SIN S N , et al. A novel technology for bulking control in biological wastewater treatment plant for pulp and paper making industry[J]. Biochemical Engineering Journal, 2006,32(3):127-134.
doi: 10.1016/j.bej.2006.08.014[9] 王浩宇 . 活性污泥膨胀的影响因素与控制研究[D]. 太原:太原理工大学, 2006. [10] 杨冬梅 . 城市污水处理厂污泥膨胀原因分析及控制方法[J].绿色科技, 2011(6):56-57.
doi: 10.3969/j.issn.1674-9944.2011.06.022YANG D M . Cause analysis and control method of sludge bulking in municipal wastewater treatment plant[J].Journal of Green Science and Technology, 2011(6):56-57. doi: 10.3969/j.issn.1674-9944.2011.06.022[11] GRAU P , DA-RIN B P.Management of toxicity effects in a large wastewater treatment plant[J]. Water Science & Technology, 1997,36(2/3):1-8.
doi: 10.1016/S0273-1223(97)00397-1[12] BLACKBEARD J R, EKAMA G A, MARAIS G V R , A survey of filamentous bulking and foaming in activated sludge plants in South Africa:water pollut[J]. Water Pollution Control, 1986,85(1):90-100. [13] 王淑莹, 白璐, 宋乾武 , 等. 低氧丝状菌污泥微膨胀节能方法[J]. 北京工业大学学报, 2006,32(12):1082-1086.
doi: 10.3969/j.issn.0254-0037.2006.12.006WANG S Y, BAI L, SONG Q W , et al. Energy saving approach via limited filamentous sludge bulking under low DO condition[J]. Journal of Beijing University of Technology, 2006,32(12):1082-1086. doi: 10.3969/j.issn.0254-0037.2006.12.006[14] 国家环境保护总局, 国家质量监督检验检疫总局. 城镇污水处理厂污染物排放标准: GB 18918—2002[S].北京:中国环境出版社, 2002. [15] CHUDOBA J, OTTOVA V, MADERA V . Control of activated sludge filamentous bulking:Ⅰ.effect of the hydraulic regime or degree of mixing in an aeration tank[J]. Water Research, 1973,7(8):1163-1182.
doi: 10.1016/0043-1354(73)90070-5[16] CHUDOBA J, GRAU P, OTTOV V . Control of activated-sludge filamentous bulking:Ⅱ.selection of microorganisms by means of a selector[J]. Water Research, 1973,7(10):1389-1398.
doi: 10.1016/0043-1354(73)90113-9[17] 左金龙, 王淑莹, 彭赵旭 , 等. 低溶解氧污泥微膨胀前后污泥硝化活性的对比研究[J]. 土木建筑与环境工程, 2009,31(4):117-122.
doi: 10.3969/j.issn.1674-4764.2009.04.022ZUO J L, WANG S Y, PENG Z X , et al. Comparison analysis of sludge nitrification activity before and after micro-bulking with low dissolved oxygen[J]. Journal of Civil,Architectural & Environmental Engineering, 2009,31(4):117-122. doi: 10.3969/j.issn.1674-4764.2009.04.022[18] HANAKI K, WANTAWIN C, OHGAKI S . Nitrification at low levels of dissolved oxygen with and without organic loading in a suspended-growth reactor[J]. Water Research, 1990,24(3):297-302.
doi: 10.1016/0043-1354(90)90004-P[19] POLLICE A, TANDOI V, LESTINGI C . Influence of aeration and sludge retention time on ammonium oxidation to nitrite and nitrate[J]. Water Research, 2002,36(10):2541-2546.
doi: 10.1016/S0043-1354(01)00468-7 pmid: 12153020[20] WANG J, YANG N . Partial nitrification under limited dissolved oxygen conditions[J]. Process Biochemistry, 2004,39(10):1223-1229.
doi: 10.1016/S0032-9592(03)00249-8[21] 陈滢, 彭永臻, 杨向平 , 等. 低溶解氧SBR除磷工艺研究[J]. 中国给水排水, 2004,20(8):40-42.CHEN Y, PENG Y Z, YANG X P , et al. Study on phosphorus removal process by using SBR at low DO level[J]. China Water & Wastewater, 2004,20(8):40-42. [22] ZENG R J, LEMAIRE R, YUAN Z , et al. Simultaneous nitrification,denitrification,and phosphorus removal in a lab-scale sequencing batch reactor[J]. Biotechnology & Bioengineering, 2003,84(2):170.
doi: 10.1002/bit.10744 pmid: 12966573[23] 王中玮 . 菌胶团菌和丝状菌竞争影响因素研究[D]. 北京:北京工业大学, 2011.
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