Journal of Jilin University(Earth Science Edition) ›› 2020, Vol. 50 ›› Issue (1): 243-251.doi: 10.13278/j.cnki.jjuese.20180272

Previous Articles    

Effects of Solid Retention Time on Organic Matter Recovery Directly from Municipal Wastewater by High Loaded Bioflocculation Membrane Reactor

Wan Liguo1,2, Lin Qiao1, Zhang Lijun1, Zhang Wenhua1,2, Long Beisheng1,2, Ren Zhimin1,2   

  1. 1. School of Water Conservancy&Environment Engineering, Changchun Institute of Technology, Changchun 130012, China;
    2. Jilin Provincial Key Laboratory of Municipal Wastewater Treatment(Changchun Institute of Technology), Changchun 130012, China
  • Received:2018-10-25 Published:2020-02-11
  • Supported by:
    Supported by National Science and Technology Major Project (2012ZX07202-009-01), Natural Science Foundation of Jilin Province (20180101317JC), Provincial Industrial Innovation Special Fund of Jilin Province (2019C055), Key Science and Technology of Jilin Province (20160204006SF) and Seed Foundation of Changchun Institute of Technology (320180027)

PDF (PC)

231

Abstract: In order to optimize the process parameter of high loaded bioflocculation-membrane reactor (HLB-MR) and improve its efficiency of recovering organics in municipal wastewater, the organics removal, bioflocculation, organics recovery, and membrane fouling of the reactor were investigated under different solid retention time (tSR) in parallel. When the HLB-MR operated at tSR of 0.2, 0.6, and 1.0 d respectively, all the efficiencies of organics removal reached above 85% and the chemical oxygen demands (COD) of permeate were all stable at around 30 mg/L. The bioflocculation effect was enhanced with the extension of tSR, and the flocculation efficiency of colloid COD increased from 66% when tSR was 0.2 d to 95% when tSR was 1.0 d. The mineralization loss rate of organics increased gradually from 6.9% when tSR was 0.2 d to 10.5% when tSR was 1.0 d, while the recovery rate of total COD decreased gradually. The membrane fouling potential of the concentrate in the reactor was gradually alleviated with the extension of tSR, which was related to higher EPS yield, better bioflocculation effect and lower particle fraction of fine particles (0-1 μm) under a longer tSR in the reactor. Compared with 0.2 d and 1.0 d, 0.6 d was considered to be optimal tSR of the HLB-MR from a comprehensive perspective. Under this condition, the flocculation efficiency of COD was up to 90%, the membrane fouling was relatively light, the total COD loss rate was as low as 7.4%, and the recovery rate of total COD could be as high as 80% if the loss of organic matter was ignored during the membrane cleaning.

Key words: municipal wastewater, solid retention time, bioflocculation, membrane reactor, organics recovery, membrane fouling

CLC Number: 

  • X703.1
[1] Gao H,Scherson Y D, Wells G F, et al. Towards Energy Neutral Wastewater Treatment:Methodology and State of the Art[J]. Environmental Science:Processes & Impacts, 2014, 16(6):1223-1246.
[2] Verstraete W, Vlaeminck S E. Zerowastewater:Short-Cycling of Wastewater Resources for Sustainable Cities of the Future[J]. International Journal of Sustainable Development & World Ecology, 2011, 18(3):253-264.
[3] Yamamura H,Okimoto K, Kimura K, et al. Hydrophilic Fraction of Natural Organic Matter Causing Irreversible Fouling of Microfiltration and Ultrafiltration Membranes[J]. Water Research, 2014, 54(5):123.
[4] Huang H, Lee N, Young T, et al. Natural Organic Matter Fouling of Low-Pressure, Hollow-Fiber Membranes:Effects of NOM Source and Hydrodynamic Conditions[J]. Water Research, 2007, 41(17):3823-32.
[5] Rosenberger S,Laabs C, Lesjean B, et al. Impact of Colloidal and Soluble Organic Material on Membrane Performance in Membrane Bioreactors for Municipal Wastewater Treatment[J]. Water Research, 2006, 40(4):710-720.
[6] Le-Clech P, Chen V, Fane T A G. Fouling in Membrane Bioreactors Used in Wastewater Treatment[J]. Journal of Membrane Science, 2006, 284(1):17-53.
[7] Akanyeti I, Temmink H, Remy M, et al. Feasibility of Bioflocculation in a High-Loaded Membrane Bioreactor for Improved Energy Recovery from Sewage[J]. Water Science and Technology, 2010, 61(6):1433-9.
[8] Faust L,Temmink H, Zwijnenburg A, et al. High Loaded MBRs for Organic Matter Recovery from Sewage:Effect of Solids Retention Time on Bioflocculation and on the Role of Extracellular Polymers[J]. Water Research, 2014, 56(6):258-266.
[9] 国家环境保护总局. 水和废水监测分析方法[M]. 四版.北京:中国环境科学出版社, 2002. State Environmental Protection Administration of China. Monitoring and Analytic Methods of Water and Wastewater[M]. 4th ed. Beijing:Environmental Science Press of China, 2002.
[10] Lowry O H,Rosebrough N J, Farr A L, et al. Protein Measurement with the Folin Phenol Reagent[J]. Journal of Biological Chemistry, 1951, 193(1):265-275.
[11] Dubois M, Gilles K A, Hamilton J K, et al. Colorimetric Method for Determination of Sugars and Related Substances[J]. Analytical Chemistry, 1956, 28(3):350-356.
[12] Gong H, Jin Z Y, Wang Q B, et al. Effectsof Adsorbent Cake Layer on Membrane Fouling During Hybrid Coagulation/Adsorption Microfiltration for Sewage Organic Recovery[J]. Chemical Engineering Journal, 2017, 317:751-757.
[13] 詹咏, 张焕焕, 冯青青, 等. 不同泥龄对活性污泥絮凝特性的影响[J]. 环境工程学报, 2017, 11(11):5836-5842. Zhan Yong, Zhang Huanhuan, Feng Qingqing, et al. Effects of SRT on Active Sludge Bioflocculation[J]. Chinese Journal of Environmental Engineering, 2017, 11(11):5836-5842.
[14] Liss S N, Liao B Q, Droppo I G, et al. Effect of Solids Retention Time on Floc Structure[J]. Water Science and Technology, 2002, 46(1/2):431.
[15] Li X Y, Yang S F. Influence of Loosely Bound Extracellular Polymeric Substances (EPS) on the Flocculation, Sedimentation and Dewaterability of Activated Sludge[J]. Water Research, 2007, 41(5):1022-1030.
[16] Chen K, Wang X H, Li X F, et al.Impacts of Sludge Retention Time on the Performance of Submerged Membrane Bioreactor with the Addition of Calcium Ion[J]. Separation and Purification Technology, 2011, 82(44):148-155.
[17] Tian Y,Su X Y. Relation Between the Stability of Activated Sludge Flocs and Membrane Fouling in MBR:Under Different SRTs[J]. Bioresource Technology, 2012, 118(4):477-482.
[18] Han S S, Jang B G G, Tak T M. Influence of Sludge Retention Time on Membrane Fouling and Bioactivities in Membrane Bioreactor System[J]. Process Biochemistry, 2005, 40(7):2393-2400.
[19] Huang Z, Ong S L, Ng H Y. Submerged Anaerobic Membrane Bioreactor for Low-Strength Wastewater Treatment:Effect of HRT and SRT on Treatment Performance and Membrane Fouling[J]. Water Research, 2011, 45(2):705-713.
[20] Broeck R V D, Dierdonck J V, Nijskens P, et al. The Influence of Solids Retention Time on Activated Sludge Bioflocculation and Membrane Fouling in a Membrane Bioreactor (MBR)[J]. Journal of Membrane Science, 2012, 401/402(10):48-55.
[21] Wisniewski C,Grasmick A. Floc Size Distribution in a Membrane Bioreactor and Consequences for Membrane Fouling[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 1998, 138(2):403-411.
[22] 城镇污水处理厂污染物排放标准:GB18918-2002[S] 北京:中国环境出版社,2003. Standard for Discharge of Pollutants from Sewage Treatment Works in Towns and Cities:GB18918-2002[S]. Beijing:China Environmental Press,2003.
[23] 张凤君, 王顺义, 刘田, 等. 投加粉末活性炭对MBR运行性能的影响[J]. 吉林大学学报(地球科学版), 2007,37(2):148-152. Zhang Fengjun, Wang Shunyi, Liu Tian, et al. Effect of Dosing Powdered Activated Carbon on Operational Performances of MBR[J]. Journal of Jilin University (Earth Science Edition), 2007,37(2):148-152.
[24] 宋志伟, 杨帆, 任南琪. 膜生物反应器中膜污染机理及其防治[J]. 吉林大学学报(地球科学版), 2008,38(4):152-156. Song Zhiwei, Yang Fan, Ren Nanqi. Mechanism of Membrane Fouling in Membrane Bioreactor and Its Prevention[J]. Journal of Jilin University (Earth Science Edition), 2008,38(4):152-156.
[1] SONG Zhi-wei，YANG Fan,REN Nan-qi. Mechanism of Membrane Fouling in Membrane Bioreactor and Its Prevention [J]. J4, 2008, 38(4): 676-0680.
[2] SHAO Pi-hong, HAN Xiang-kui, AI Sheng-shu, LIU Hong-bo. Experimental Research on the Municipal Wastewater Treatment by Multi-stage Two-phase Anaerobic Process Using Anaerobic Baffled Reactor [J]. J4, 2007, 37(4): 789-0792.
[3] WANG Yu-sheng, MA Xiao-fan，WANG Yu-Liang, CHENG Hai-jun, LV Zhi-yong. A Study on Treatment of Municipal Wastewater by Hybrid Biological Reactor [J]. J4, 2005, 35(03): 373-0377.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd