[1]晏习鹏,肖小兰,亓金鹏,等.中试厌氧膜生物反应器对剩余污泥的消化效果[J].中国给水排水,2020,36(19):1-8.
　YAN Xi-peng,XIAO Xiao-lan,QI Jin-peng,et al.Digestion of Excess Sludge in a Pilot Anaerobic Membrane Bioreactor[J].China Water & Wastewater,2020,36(19):1-8.
点击复制

中试厌氧膜生物反应器对剩余污泥的消化效果

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第19期 页码: 1-8 栏目: 出版日期: 2020-10-01
Title:
Digestion of Excess Sludge in a Pilot Anaerobic Membrane Bioreactor
作者:
晏习鹏1,2，肖小兰1,2，亓金鹏1,2，李倩1,2，阮文权1,2
(1. 江南大学环境与土木工程学院，江苏无锡214122；2.江苏省厌氧生物技术重点实验室，江苏无锡214122)
Author(s):
YAN Xi-peng1,2,XIAO Xiao-lan1,2,QI Jin-peng1,2,LI Qian1,2,RUAN Wen-quan1,2
(1. School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; 2. Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi 214122, China)
关键词:
厌氧膜生物反应器; 剩余污泥; 两级厌氧消化; 膜污染
Keywords:
anaerobic membrane bioreactor; excess sludge; two-stage anaerobic digestion; membrane fouling
摘要:
采用中试规模的内置式两级厌氧膜生物反应器对未经预处理的剩余污泥进行厌氧消化，考察其消化效能及膜运行性能。反应器分两阶段运行，第Ⅰ阶段（第1~59天）保持不排泥运行，有机负荷为0.58 kgVS/(m3·d)，挥发性固体（VS）降解率为51.7%，单位产气量为0.143 m3/kgVS。不排泥运行条件下，反应罐内污泥总固体（TS）迅速累积到131.1 g/L，溶解性微生物产物（SMP）持续增加到27.0 mg/L。快速累积的污泥浓度及SMP使膜污染加剧，导致膜通量从1.74 L/(m2·h)降到0.60 L/(m2·h)。为解决此问题，第Ⅱ阶段（第60~90 天）开始排泥运行，此时有机负荷为0.50 kgVS/(m3·d)，VS降解率为48.6%，单位产气量为0.139 m3/kgVS。通过排泥，罐内污泥TS降至（50±10） g/L，明显低于不排泥状态；SMP不再增加并保持动态平衡，而且此时的膜污染得到有效缓解，膜清洗间隔延长，表明厌氧消化过程中污泥性质的变化是导致膜污染加剧的主要原因，排泥能延缓膜污染。
Abstract:
Excess sludge without pretreatment was digested in a pilot internal two-stage anaerobic membrane bioreactor (AnMBR), and the digestion efficiency and membrane performance were investigated. The reactor was operated in two phases. During phase Ⅰ (days 1 to 59), the reactor operated without sludge discharge, the organic loading rate (OLR) was 0.58 kgVS/(m3·d), the volatile solid (VS) reduction rate was 51.7%, and the biogas yield was 0.143 m3/kgVS. The total solids (TS) of the sludge in the reactor quickly accumulated to 131.1 g/L, and the soluble microbial products (SMP) continuously increased to 27.0 mg/L. Rapid accumulation of sludge concentration and SMP aggravated membrane fouling, and membrane flux reduced from 1.74 L/(m2·h) to 0.60 L/(m2·h). In order to solve this problem, sludge was discharged during Phase Ⅱ (days 60 to 90), OLR was controlled to 0.50 kgVS/(m3·d), and VS reduction rate and the biogas yield were 48.6% and 0.139 m3/kgVS, respectively. TS decreased to (50±10) g/L by sludge discharge, which was significantly lower than that without sludge discharge. In addition, SMP no longer increased and maintained dynamic balance, and membrane fouling was effectively alleviated and membrane cleaning interval was prolonged. Therefore, the change of sludge properties during anaerobic digestion was the main cause of the increased membrane fouling, and sludge discharge could alleviate membrane fouling.

相似文献/References:

[1]徐志嫱,李瑶,周爱朝,等.污泥热水解过程中磷的释放规律与影响因素[J].中国给水排水,2018,34(21):24.
　XU Zhi qiang,LI Yao,ZHOU Ai chao,et al.Phosphate Release and Influencing Factors Analysis during Sludge Thermal Hydrolysis[J].China Water & Wastewater,2018,34(19):24.
[2]李理,何慧奇.AnMBR与CWSBR组合工艺处理水产加工废水[J].中国给水排水,2018,34(21):100.
　LI Li,HE Hui qi.Treatment of Fishing Industry Wastewater by Combined Process of AnMBR and CWSBR[J].China Water & Wastewater,2018,34(19):100.
[3]张彦平,呼瑞琪,李一兵,等.高铁酸盐氧化剩余污泥溶胞减量研究[J].中国给水排水,2020,36(15):59.
　ZHANG Yan-ping,HU Rui-qi,LI Yi-bing,et al.Lysis and Reduction of Excess Sludge by Ferrate Oxidation[J].China Water & Wastewater,2020,36(19):59.
[4]胡德秀,张聪,张艳.超声强化污泥释磷及MAP法磷回收优化研究[J].中国给水排水,2020,36(15):65.
　HU De-xiu,ZHANG Cong,ZHANG Yan.Phosphorus Release from Sludge Enhanced by Ultrasound and Optimization of Phosphorus Recovery by Magnesium Ammonium Phosphate Method[J].China Water & Wastewater,2020,36(19):65.
[5]孙洋洋,张雨辰,徐苏云.不同来源剩余污泥有机质赋存特征及厌氧消化潜能[J].中国给水排水,2021,37(11):17.
　SUN Yang-yang,ZHANG Yu-chen,XU Su-yun.Characteristics of Organic Matters in Excess Sewage Sludge from Different Sources and Their Anaerobic Digestion Potential[J].China Water & Wastewater,2021,37(19):17.
[6]朱赵冉,黄显怀,唐玉朝,等.低速搅拌球磨破解剩余污泥高效释放碳源[J].中国给水排水,2021,37(13):1.
　ZHU Zhao-ran,HUANG Xian-huai,TANG Yu-chao,et al.High Efficient Release of Carbon Source from Excess Sludge Disintegrated by Low-speed Stirring and Ball-milling[J].China Water & Wastewater,2021,37(19):1.
[7]赵博玮,牛宇锟,谢飞,等.剩余污泥碳化裂解液的资源化中试研究[J].中国给水排水,2021,37(19):1.
　ZHAO Bo-wei,NIU Yu-kun,XIE Fei,et al.Pilot-scale Study on Resource Recycling of Excess Sludge Carbonized Pyrolysis Liquid[J].China Water & Wastewater,2021,37(19):1.
[8]窦川川,刘玉玲,赵鹏鹤,等.碱预处理对剩余污泥DOM的溶出特征及平行因子分析[J].中国给水排水,2021,37(19):14.
　DOU Chuan-chuan,LIU Yu-ling,ZHAO Peng-he,et al.Effect of Alkaline Pretreatment on DOM Dissolution Characteristics of Excess Sludge and Parallel Factor Analysis[J].China Water & Wastewater,2021,37(19):14.
[9]罗锋,彭进湖,张忠祥,等.南方污水处理厂污泥厌氧发酵制取碳源及投加策略[J].中国给水排水,2022,38(3):1.
　LUO Feng,PENG Jin?hu,ZHANG Zhong-xiang,et al.Preparation of Carbon Source by Anaerobic Fermentation of Sludge in Wastewater Treatment Plant in Southern China and Its Dosing Strategy[J].China Water & Wastewater,2022,38(19):1.
[10]罗璐,施周,许仕荣,等.溶菌酶预处理对剩余污泥脱水性能的影响[J].中国给水排水,2022,38(3):87.
　LUOLu,SHIZhou,XUShi-rong,et al.Effect of Lysozyme Pretreatment on Dewatering Performance of Excess Activated Sludge[J].China Water & Wastewater,2022,38(19):87.

更新日期/Last Update: 2020-10-01