焚燒廠滲濾液處理中全氟辛酸的去除效果及影響因素
- Title:
- Removal Effect of Perfluorooctanoic Acid in Landfill Leachate Treatment and Its Influencing Factors
危廢處置中心污水分質(zhì)處理工藝設(shè)計(jì)及運(yùn)行經(jīng)驗(yàn)
王凱1, 高波2, 張磊2, 郭修智2(1.青島海灣新材料科技有限公司，山東青島266700；2.中國市政工程華北設(shè)計(jì)研究總院有限公司，天津300381)
WANG Kai,GAO Bo,ZHANG Lei,et al.Experience in Design and Operation of Wastewater Separate Treatment in the Hazardous Waste Disposal Center[J].China Water & Wastewater,2020,36(16):69-73.
危廢處置中心污水分質(zhì)處理工藝設(shè)計(jì)及運(yùn)行經(jīng)驗(yàn)
- Title:
- Experience in Design and Operation of Wastewater Separate Treatment in the Hazardous Waste Disposal Center
- 關(guān)鍵詞:
- 危險(xiǎn)廢物; 污水處理; 蒸發(fā)系統(tǒng)
- 摘要:
- 山東省某危險(xiǎn)廢物處置中心的污水處理系統(tǒng)建設(shè)規(guī)模為235 m3/d。根據(jù)污水的不同來源和水質(zhì)特性，分為4類分別收集處理。生產(chǎn)污水和初期雨水采用“還原+中和+絮凝沉淀+活性炭過濾”處理工藝；焚燒污水和滲濾液采用蒸發(fā)處理工藝；物化系統(tǒng)污水采用“蒸發(fā)＋生化”處理工藝；生活污水與物化污水蒸發(fā)系統(tǒng)出水采用“O/A+MBR”工藝處理。詳細(xì)介紹了4條處理線的工藝流程和設(shè)計(jì)參數(shù)。近半年實(shí)際運(yùn)行效果顯示，系統(tǒng)運(yùn)行穩(wěn)定，水質(zhì)波動(dòng)較小。各項(xiàng)出水水質(zhì)能夠達(dá)到《污水排入城鎮(zhèn)下水道水質(zhì)標(biāo)準(zhǔn)》（GB/T 31962—2015）的要求，COD、BOD5、NH3-N、TDS平均去除率分別為95.52%、95.48%、95.13%、99.85%，處理成本約為3.7元/m3。
- Abstract:
- The treatment capacity of a wastewater treatment system of a hazardous waste disposal center in Shandong Province is 235 m3/d. The wastewater was divided into four categories and collected and treated separately according to its different sources and quality characteristics. The production wastewater and initial rainwater were treated by “reduction + neutralization + flocculation and precipitation + activated carbon filtration” process; Incineration wastewater and leachate were treated by evaporation process; Physichemical wastewater was treated by “evaporation+biochemical treatment” process; Domestic sewage and physicochemical evaporation effluent were treated by “O/A+MBR” process. The process flow and design parameters of the four treatment processes were introduced in detail. The actual operation results in the last half year showed that the system operated stably and the water quality fluctuated little. The effluent quality could meet the standard of Wastewater Quality Standards for Discharge to Municipal Sewers (GB/T 31962-2015), the average removal rate of COD,BOD5, NH3-N, TDS was 95.52%, 95.48%, 95.13%, 99.85% respectively, and the treatment cost was 3.7 yuan/m3.
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