HUANG Zhi-xin.Practice and Thinking of Upgrading and Reconstruction of Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2020,36(22):48-53.
城鎮(zhèn)污水處理廠提標(biāo)改造實踐與思考
- Title:
- Practice and Thinking of Upgrading and Reconstruction of Municipal Wastewater Treatment Plant
- 關(guān)鍵詞:
- 污水處理廠; 提標(biāo)改造; 深度處理
- 摘要:
- 結(jié)合福州3座污水處理廠提標(biāo)改造案例分析與總結(jié)，提出生化系統(tǒng)挖潛步驟、深度處理工藝選擇要點、南方城市污水處理廠提標(biāo)改造特點，并對提標(biāo)改造工藝發(fā)展方向進(jìn)行展望。根據(jù)3座污水處理廠生化處理工藝、進(jìn)水水質(zhì)、區(qū)域環(huán)境功能、運行情況采用不同的設(shè)施改造和提標(biāo)工藝，混凝沉淀工藝均選用高效沉淀池，過濾工藝分別選用深床濾池、濾布濾池和活性砂濾池。實踐表明，3座污水廠出水都能穩(wěn)定達(dá)到一級A排放標(biāo)準(zhǔn)，因地制宜選擇深度處理工藝符合實際情況。
- Abstract:
- Combined with the experience of upgrading and reconstruction of the three wastewater treatment plants in Fuzhou, the improvement of biochemical treatment process, the key points of advanced treatment process selection, and the characteristics of upgrading and reconstruction of sewage treatment plants in southern cities are put forward, and the development direction of upgrading and reconstruction process is prospected. According to the biochemical treatment process, influent quality, regional environmental functions and operation conditions of the three sewage treatment plants, different facilities transformation and standard raising processes are adopted. Based on the existing process of three wastewater treatment plants, the high-efficiency sedimentation tank was selected as coagulation sedimention process, denitrification deep bed filter, fiber rotary disc filter and active sand filter were employed as filtration process, respectively. Through the technical upgrading and management optimization of the current process, the effluent quality of the three wastewater treatment plants could meet the requirement of the first level A standard steadily. The selection of advanced treatment process according to local conditions should be in line with the actual situation.
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