Abstract: Landfill leachate has the characteristics of high toxicity,complex composition and huge harm to the environment,and it is difficult to be effectively treated by traditional process routes.Membrane separation technology has the advantages of low energy consumption,high efficiency and good stability,and becomes an important means in harmless treatment of landfill leachate.A self-made g-C3N4/TiO2/PVDF membrane is built into a membrane bioreactor (MBR),and an A/O+MBR+NF/RO series process is designed to conduct in-depth treatment of landfill leachate.The removal efficiencies of COD,NH3-N and TN by A/O+MBR section reach 87.84%,92.97% and 89.95%,respectively.The removal rates of COD,NH3-N and TN by nanofiltration (NF) section reach 85%,60.8% and 63.14%,respectively.The corresponding removal rates by reverse osmosis (RO) section are 87.7%,73.3% and 72.4%,respectively.The contents of COD,NH3-N and TN in leachate treated by MBR+NF+RO combining process are reduced to 16 mg·L-1,14 mg·L-1 and 22 mg·L-1,respectively,meeting the discharge standard.
王慧雅. g-C3N4/TiO2/PVDF复合膜构建的MBR+双膜法在垃圾渗滤液深度处理中的应用研究[J]. 现代化工, 2020, 40(5): 159-164.
WANG Hui-ya. Application of g-C3N4/TiO2/PVDF composite membrane-constructed MBR+double membrane method in deep treatment of landfill leachate. Modern Chemical Industry, 2020, 40(5): 159-164.
[1] Xi Beidou,Liu Dongming,Li Mingxiao,et al.Technology and innovation development of solid waste recycling in Chian[J].Environmental Protection,2017,45(20):16-19. [2] 黄小琴,汪晓军,王蓓蓓,等.垃圾渗滤液深度处理中试研究[J].水处理技术,2017,43(7):94-97. [3] Oliverira L F,Silva S M C,Martinez C B R.Assessment of domestic landfill leachate toxicity to the Asi-an clam Corbi cula fluminea via biomarkers[J].Ecotoxicology and Environmental Safety,2014,103:17-23. [4] 何祥,李晓彤,傅金祥,等.垃圾渗滤液生物毒性检测技术的应用与展望[J].工业水处理,2019,39(5):9-15. [5] 王永庆,陈振国,汪晓军,等.短程硝化反硝化AOOA工艺处理老龄垃圾渗滤液[J].中国给水排水,2018,34(21):18-23. [6] Fauzish S H,Nor lzzati M,Agamuthu P.Toxicity on Anabas Testudineus:A case study of santitary landfill leachate[J].Procedia Environmental Sciences,2013,18:14-19. [7] Sun H,Peng Y,Shi X.Advanced treatment of landfill leachate using anaerobic-aerobic process:Organic removal by simultaneous denitritation and methanogenesis and nitrogen removal via nitrite[J].Bioresource Technology,2015,177:337-345. [8] Yin Wenjun,Zhou Weiwei,Wang Kai.Analysis of physical-chemistry and biochemical treatment technologies on landfill leachate[J].Environmental Engineering,2018,36(2):83-87. [9] Renou S,Givaudan J G,Poulain S,et al.Landfill leachate treatment:Review and opportunity[J].J Hazard Mater,2008,150(3):468-493. [10] 刘占孟,徐礼春,赵杰峰,等.新型高级氧化技术处理垃圾渗滤液的研究进展[J].水处理技术,2018,44(1):7-12. [11] Dong Y,Wang Z,Zhu C,et al.A forward osmosis membrane system for the post-treatment of MBR-treated landfill leachate[J].Journal of Membrane Science,2014,471:192-200. [12] 郭智,邱明建,徐伟,等.膜吸收法去除垃圾渗滤液中氨氮的技术进展[J].现代化工,2018,38(4):46-49. [13] 杜昱,孙月驰,李瑞华,等.垃圾渗滤液MBR处理系统设计要点[J].中国给水排水,2018,34(2):63-67. [14] Chen Jiahao,Zhao Wentao,Chai Xiaoli.Treatment of landfill leachate using membrane bioreactors:Research evolution[J].Nonferrous Metals Engineering Research,2016,37(1):39-43. [15] Susan Hayeri Yazdi,Ali Vosoogh,Alireza Bazargan.The application of Membrane Bioreactors(MBR) for the Removal of Organic Matter,Nutrients,and Heavy Metals from Landfill Leachate[J].Handbook of Environmental Matereials Management,2018:1-20. [16] 范美霖,张云霞,张劲松,等.生物强化MBR-AF工艺短程硝化反硝化研究[J].环境科学学报,2012,32(8):1814-1821. [17] 刘宇,刘晓静,姜安平,等.A/O-MBR+NF组合工艺用于垃圾渗滤液处理工程[J].中国给水排水,2017,33(14):77-81.