AnMBR用于餐厨垃圾和剩余污泥共发酵的性能研究

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1350 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要通过连续实验和活性实验，系统地研究了厌氧膜生物反应器（AnMBR）在不同有机负荷（OLR）条件下处理餐厨垃圾和剩余污泥的效率、稳定性及动力学特征.结果表明，AnMBR在各工况下（OLR：3.22~12.92gCOD/（L·d））能够稳定运行.其中在OLR为6.48gCOD/（L·d）时运行性能最优，其甲烷产量为（4335±2）mL/d，甲烷产率为（361.2±0.2）mLCH₄/gCOD_removal，COD的去除率维持在（98.6±0.9）%，pH值稳定在7.71±0.03.当OLR超过12.92gCOD/（L·d），反应器内挥发性脂肪酸（VFA）达到了6108mgCOD/L.膜污染以滤饼层污染为主；利用高通量测序（HTS）探究了系统中微生物的演变情况，Levilinea菌是优势细菌属，在OLR为6.48gCOD/（L·d）时其相对丰度最高（20.1%），Methanosarcina菌是优势古菌属，随着OLR增加相对丰度均维持在67%以上；比产甲烷活性实验表明随着OLR的增加，产甲烷菌对乙酸的降解能力不断提高.研究结果将为AnMBR处理餐厨垃圾和剩余污泥共发酵系统的最优工况选择提供参考依据.

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	鲁斌
	龚凯
	蒋红与
	李倩
	陈荣

关键词 ：厌氧膜生物反应器, 共消化, 发酵性能, 比产甲烷活性, 膜污染

Abstract：Continuous experiments and activity experiments were conducted to systematically explore the effect of anaerobic membrane bioreactor (AnMBR) on the efficiency, stability, and kinetic characteristics of the treatment of food waste and waste activated sludge under different organic loading rates (OLRs). The results indicated that AnMBR can operate stably under various working conditions (OLR:3.22~12.92gCOD/(L·d)). When the OLR was 6.48gCOD/(L·d), the methane production was (4335±2)mL/d, the methane yield (calculated as COD) was (361.2±0.2)mLCH₄/gCOD_removal, the COD removal efficiency was maintained at (98.6±0.9)%, and the pH was stable at 7.71±0.03. When the OLR exceeded 12.92gCOD/(L·d), the volatile fatty acid in the reactor reached 6108mg COD/L. Membrane fouling was dominated by cake layer fouling. High-throughput sequencing was used to characterize the evolution of microorganisms in the system. Levilinea was the dominant genus of bacteria, and its relative abundance was highest (20.1%) when the OLR was 6.48gCOD/(L·d). Methanosarcina was the dominant genus of archaea, and its relative abundance was maintained above 67% as the OLR increased. Specific methanogenic activity experiments showed that with the increase of OLR, the ability of methanogens to degrade acetic acid continues to increase.. The results of this research provide useful information for the selection of optimal working conditions of AnMBR treatment for the co-digestion of food waste and waste activated sludge.

Key words： anaerobic membrane bioreactor co-digestion digester stability specific methanogenic activity (SMA) membrane fouling

收稿日期: 2020-10-13

PACS:

X703

基金资助:国家自然科学基金资助项目（52070148）

通讯作者: 李倩,副教授,Qian.LI@xauat.edu.cn E-mail: Qian.LI@xauat.edu.cn

作者简介: 鲁斌(1995-),男,湖南常德人,西安建筑科大学硕士研究生,主要研究方向为餐厨垃圾厌氧厌氧生物处理.

引用本文:

鲁斌, 龚凯, 蒋红与, 李倩, 陈荣. AnMBR用于餐厨垃圾和剩余污泥共发酵的性能研究[J]. 中国环境科学, 2021, 41(5): 2290-2298. LU Bin, GONG Kai, JIANG Hong-Yu, LI Qian, CHEN Rong. Performance of AnMBR for the co-digestion of food waste and waste activity sludge. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(5): 2290-2298.

链接本文:

http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2021/V41/I5/2290

[1]	Zhang J, Li W, Lee J, et al. Enhancement of biogas production in anaerobic co-digestion of food waste and waste activated sludge by biological co-pretreatment[J]. Energy, 2017,137:479-486.
[2]	Dai X, Duan N, Dong B, et al. High-solids anaerobic co-digestion of sewage sludge and food waste in comparison with mono digestions:stability and performance[J]. Waste Management, 2013,33(2):308-316.
[3]	Prabhu M S, Mutnuri S. Anaerobic co-digestion of sewage sludge and food waste[J]. Water Environment Research, 2016,34(4):307-315.
[4]	Li L, He Q, Ma Y, et al. Dynamics of microbial community in a mesophilic anaerobic digester treating food waste:Relationship between community structure and process stability[J]. Bioresource Technology, 2015,189:113-120.
[5]	Durán F, Zamorano-López N, Barat R, et al. Understanding the performance of an AnMBR treating urban wastewater and food waste via model simulation and characterization of the microbial population dynamics[J]. Process Biochemistry, 2018,67:139-146.
[6]	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, 2012,122:149-159.
[7]	Wang W, Yang Q, Zheng S, et al. Anaerobic membrane bioreactor (AnMBR) for bamboo industry wastewater treatment[J]. Bioresource Technology, 2013,149:292-300.
[8]	Cheng H, Hiro Y, Hojo T, et al. Upgrading methane fermentation of food waste by using a hollow fiber type anaerobic membrane bioreactor[J]. Bioresource Technology, 2018,267:386-394.
[9]	Lee J, Han G, Shin S G, et al. Seasonal monitoring of bacteria and archaea in a full-scale thermophilic anaerobic digester treating food waste-recycling wastewater:Correlations between microbial community characteristics and process variables[J]. Chemical Engineering Journal, 2016,300:291-299.
[10]	Li Q, Qiao W, Wang X, et al. Kinetic characterization of thermophilic and mesophilic anaerobic digestion for coffee grounds and waste activated sludge[J]. Waste Management, 2015,36:77-85.
[11]	Li Q, Yuwen C, Cheng X, et al. Responses of microbial capacity and community on the performance of mesophilic co-digestion of food waste and waste activated sludge in a high-frequency feeding CSTR[J]. Bioresource Technology, 2018,260:85-94.
[12]	Jang H M, Ha J H, Kim M S, et al. Effect of increased load of high-strength food wastewater in thermophilic and mesophilic anaerobic co-digestion of waste activated sludge on bacterial community structure[J]. Water Research, 2016,99:140-148.
[13]	Shen L g, Lei Q, Chen J R, et al. Membrane fouling in a submerged membrane bioreactor:Impacts of floc size[J]. Chemical Engineering Journal, 2015,269:328-334.
[14]	Yang Y, Chen Q, Guo J, et al. Kinetics and methane gas yields of selected C1to C5organic acids in anaerobic digestion[J]. Water Research, 2015,87:112-118.
[15]	Li Q, Liu Y, Yang X, et al. Kinetic and thermodynamic effects of temperature on methanogenic degradation of acetate, propionate, butyrate and valerate[J]. Chemical Engineering Journal, 2020,396:125366.
[16]	Qiao W, Takayanagi K, Shofie M, et al. Thermophilic anaerobic digestion of coffee grounds with and without waste activated sludge as co-substrate using a submerged AnMBR:system amendments and membrane performance[J]. Bioresource Technology, 2013,150:249-258.
[17]	Liu X, Wang W, Shi Y, et al. Pilot-scale anaerobic co-digestion of municipal biomass waste and waste activated sludge in China:effect of organic loading rate[J]. Waste Management, 2012,32(11):2056-2060.
[18]	Xiao X, Shi W, Huang Z, et al. Process stability and microbial response of anaerobic membrane bioreactor treating high-strength kitchen waste slurry under different organic loading rates[J]. International Biodeterioration & Biodegradation, 2017,121:35-43.
[19]	Monino P, Aguado D, Barat R, et al. A new strategy to maximize organic matter valorization in municipalities:Combination of urban wastewater with kitchen food waste and its treatment with AnMBR technology[J]. Waste Management, 2017,62:274-289.
[20]	Lee D H, Behera S K, Kim J W, et al. Methane production potential of leachate generated from Korean food waste recycling facilities:a lab-scale study[J]. Waste Management, 2009,29(2):876-882.
[21]	Tang Y, Shigematsu T, Morimura S, et al. Microbial community analysis of mesophilic anaerobic protein degradation process using bovine serum albumin (BSA)-fed continuous cultivation[J]. Journal of Bioscience And Bioengineering, 2005,99(2):150-164.
[22]	Wang P, Wang H, Qiu Y, et al. Microbial characteristics in anaerobic digestion process of food waste for methane production-A review[J]. Bioresource Technology, 2018,248(Pt A):29-36.
[23]	Conklin A, Stensel H D, Ferguson J. Growth kinetics and competition between Methanosarcina and Methanosaeta in mesophilic anaerobic digestion[J]. Water Environment Research, 2006,78(5):486-496.