An upgrading and reconstructing project case of treatment facilities for landfill leachate

doi:10.11894/iwt.2020-0326

Abstract

Abstract:

According to the status of landfill leachate treatment project, the existing problems of raw leachate treatment station were analyzed. Landfill leachate treatment facility was upgrading by the combination process of "water quality equalization tank+IC anaerobic reaction tank+external MBR system+membrane system". New membrane concentration facility was built. Advanced oxidation with MBR system and membrane system was used for treating membrane concentration to achieve zero discharge of landfill leachate. After upgrading, the landfill leachate treatment station run stably. The effluent quality met the Table 2 requirement of Standard for Pollution Control on the Landfill Site of Municipal Solid Waste(GB 16889-2008).

Key words: landfill leachate, membrane concentrate, advanced oxidation

摘要：

针对垃圾填埋场渗滤液处理工程现状，分析了原渗滤液处理站存在的问题，采用“均衡池+IC厌氧反应罐+外置式MBR+膜处理系统”组合工艺对渗滤液处理站进行升级改造。新建膜浓缩液处理设施，采用“高级氧化+MBR+膜处理系统”组合工艺，实现渗滤液全量无害化处理。升级改造后垃圾填埋场垃圾渗滤液处理站运行稳定，各项出水指标达到《生活垃圾填埋场污染控制标准》（GB 16889—2008）表2排放标准。

关键词: 渗滤液, 膜浓缩液, 高级氧化

CLC Number:

X703

Huaiyu Zeng. An upgrading and reconstructing project case of treatment facilities for landfill leachate[J]. Industrial Water Treatment, 2021, 41(3): 120-124.

曾怀宇. 垃圾渗滤液处理设施升级改造工程实例[J]. 工业水处理, 2021, 41(3): 120-124.

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URL: https://www.iwt.cn/EN/10.11894/iwt.2020-0326

https://www.iwt.cn/EN/Y2021/V41/I3/120

Figures/Tables 3

References 7

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项目	垃圾渗滤液进水	膜浓缩液系统进水	出水
pH	6~9	6~9	6~9
COD（mg·L^-1）	≤15 000	≤50 000	≤100
BOD₅（mg·L^-1）	≤5 000	≤50	≤30
SS/（mg·L^-1）	≤800	—	≤30
NH₄⁺-N/（mg·L^-1）	≤1 200	≤100	≤25
TN/（mg·L^-1）	≤1 500	≤4 000	≤40

项目	垃圾渗滤液进水	膜浓缩液系统进水	出水
pH	6~9	6~9	6~9
COD（mg·L^-1）	≤15 000	≤50 000	≤100
BOD₅（mg·L^-1）	≤5 000	≤50	≤30
SS/（mg·L^-1）	≤800	—	≤30
NH₄⁺-N/（mg·L^-1）	≤1 200	≤100	≤25
TN/（mg·L^-1）	≤1 500	≤4 000	≤40

项目	批次	pH	COD	BOD₅	SS	NH₃-N	TN
垃圾渗滤液处理系统出水	1	6.04	23.6	8.4	1.95	10.3	26.3
	2	6.32	20.8	7.8	1.83	5.5	13.8
	3	6.25	22.9	8.1	1.92	9.8	20.4
	4	6.58	23.4	8.2	1.94	10.1	22.5
	5	6.54	20.3	7.2	1.79	5.4	13.2
膜浓缩液处理系统出水	1	6.83	26.7	9.6	1.97	10.4	26.6
	2	6.86	26.9	9.8	1.99	10.2	26.4
	3	6.05	25.6	9.2	1.95	10.1	25.7
	4	5.89	25.3	8.9	1.87	10.3	26.2
	5	6.06	24.8	8.7	1.88	9.9	25.9

项目	批次	pH	COD	BOD₅	SS	NH₃-N	TN
垃圾渗滤液处理系统出水	1	6.04	23.6	8.4	1.95	10.3	26.3
	2	6.32	20.8	7.8	1.83	5.5	13.8
	3	6.25	22.9	8.1	1.92	9.8	20.4
	4	6.58	23.4	8.2	1.94	10.1	22.5
	5	6.54	20.3	7.2	1.79	5.4	13.2
膜浓缩液处理系统出水	1	6.83	26.7	9.6	1.97	10.4	26.6
	2	6.86	26.9	9.8	1.99	10.2	26.4
	3	6.05	25.6	9.2	1.95	10.1	25.7
	4	5.89	25.3	8.9	1.87	10.3	26.2
	5	6.06	24.8	8.7	1.88	9.9	25.9

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