预处理-厌氧处理-MAP-生物脱氮组合工艺高效处理餐厨垃圾渗滤液工程  

Tailoring Kitchen Waste Leachate Remediation with Integrated Pretreatment,Anaerobic Digestion,MAP and Biological Denitrification for High-Efficiency Treatment

作　　者：王文标 谭文明 谢靖 谢丽[2] WANG Wenbiao;TAN Wenming;XIE Jing;XIE Li(Shanghai Honess Environmental Technology Co.,Ltd.,Shanghai 200092,China;College of Enwironmental Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]上海泓济环保科技股份有限公司,上海200092 [2]同济大学环境科学与工程学院,上海200092

出　　处：《净水技术》2024年第S01期210-215,共6页Water Purification Technology

摘　　要：上海某区产生的餐厨垃圾渗滤液油分、固体悬浮物含量大,同时有机物、氨氮和总磷浓度高,属于难处理有机废水。本工程采用预处理-厌氧反应器-磷酸铵镁(magnesium ammonium phosphate,MAP)反应器-生物脱氮组合工艺处理餐厨垃圾渗滤液,处理能力达到100 m^(3)/d。预处理采用三相分离机分离浮渣油脂等物质。厌氧处理阶段通过两级厌氧处理工艺强化废水有机质降解去除。组合工艺系统对水量水质变化有较强抗冲击负荷能力。工程运行表明,组合处理工艺出水平均COD_(Cr)质量浓度为245 mg/L,氨氮质量浓度为6 mg/L,总氮质量浓度为40 mg/L,总磷质量浓度为4 mg/L,出水水质达到了上海市《污水综合排放标准》(DB 31/199—2018)的三级纳管标准。工程吨水处理成本为134.57元,进一步表明预处理-厌氧反应器-MAP-生物脱氮组合工艺是处理餐厨垃圾渗滤液的有效方法。The food waste leachate from a district of Shanghai contains a large amount of oil and suspended solids,and also obtains high concentration of organic matter,ammonia and total phosphorus,thus belonging to refractory organic wastewater.In this project,the combined process of pretreatment-anaerobic treatment-magnesium ammonium phosphate(MAP)reactor-biological denitrification was used to treat food waste leachate,and the daily treatment capacity reach 100 m^(3)/d.The three-phase separator is applied in pretreatment to separate scum and grease.Two-stage anaerobic treatment process is utilized to enhance degradation and removal of organic matter.The combined treatment process had a strong resistance to impact load of influent wastewater.The project operation shows that the average CODcr mass concentration of the effluent from the combined treatment process is 245 mg/L,the ammonia nitrogen mass concentration is 6 mg/L,the total nitrogen mass concentration is 40 mg/L,and the total phosphorus mass concentration is 4 mg/L,which meets the three-level management standard of the Shanghai Integrated Sewage Discharge Standard(DB 31/1992018).The cost for each ton of wastewater treatment is only 134.57 yuan,which indicates that the combined process of pretreatment-anaerobic treatment-MAP-biological denitrification is an effective method for treating food waste leachate.

关 键 词：餐厨垃圾渗滤液 组合处理工艺 工艺流程 MAP工艺 生物脱氮 

分 类 号：X703[环境科学与工程—环境工程]