SUN Gao-sheng,WANG Dong-dong,YI Fan,et al.Advanced Wastewater Treatment Process with Effluent Quality Meeting Level Quasi Ⅳ Criteria of Surface Water in Huai River Basin[J].China Water & Wastewater,2020,36(19):16-23.
淮河流域地表水類Ⅳ類標(biāo)準(zhǔn)污水深度處理工藝研究
- Title:
- Advanced Wastewater Treatment Process with Effluent Quality Meeting Level Quasi Ⅳ Criteria of Surface Water in Huai River Basin
- 關(guān)鍵詞:
- 淮河流域; 污水處理廠; 提標(biāo)改造; 地表水類Ⅳ類標(biāo)準(zhǔn); A2O/MBR/BAF/O3組合工藝
- Keywords:
- Huai River basin; wastewater treatment plant; upgrading and reconstruction; level quasi Ⅳ criteria of surface water; A2O/MBR/BAF/O3 combined process
摘要:- 針對(duì)河南省淮河流域城鎮(zhèn)污水處理廠的升級(jí)改造問(wèn)題，通過(guò)對(duì)當(dāng)?shù)氐湫臀鬯幚韽S的實(shí)地調(diào)研，從水質(zhì)、水量和運(yùn)行等方面分析該流域污水處理廠的基本特征及所面臨的問(wèn)題，并在此基礎(chǔ)上設(shè)計(jì)開發(fā)了污水處理技術(shù)路線：A2O/MBR/BAF/O3組合工藝；同時(shí)，針對(duì)兩種典型的污水水質(zhì)進(jìn)行模擬實(shí)驗(yàn)，研究該組合工藝對(duì)不同水質(zhì)的適應(yīng)性，并得到最佳運(yùn)行條件。在最佳運(yùn)行條件下，組合工藝對(duì)COD和氨氮均有較好的去除效果，兩者的出水濃度均可以達(dá)到地表水類Ⅳ類水質(zhì)標(biāo)準(zhǔn)。對(duì)于有工業(yè)廢水混入的進(jìn)水，組合工藝對(duì)TN的去除率可達(dá)到80%以上，出水TN均值在10 mg/L以下，可以達(dá)到地表水類Ⅳ類水質(zhì)標(biāo)準(zhǔn)；但對(duì)于氮源濃度較高的進(jìn)水，該組合工藝不能確保出水TN達(dá)標(biāo)，可以考慮在BAF單元后面增加反硝化濾池。
Abstract:- Aiming at the upgrading and reconstruction of wastewater treatment plant in Huai River basin of Henan Province, field research on local typical wastewater treatment plants was conducted, and basic characteristics and problems of the current wastewater treatment plants in this basin were analyzed from the aspects of water quality, water quantity and operation. On this basis, a combined process of A2O/MBR/BAF/O3 was designed and developed. Meanwhile, two kinds of typical water quality simulation experiments were conducted to explore the adaptability of the process to different water quality and determine the optimal operating conditions. Under the optimal operating conditions, the combined process had good treatment effect on COD and ammonia nitrogen, and their concentrations in the effluent could meet the level quasi Ⅳ criteria of surface water. When the influent mixed with industrial wastewater, the removal efficiency of TN was more than 80%, and the average concentration of TN in the effluent was less than 10 mg/L, which could meet the level quasi Ⅳ criteria of surface water. However, the effluent TN concentration could not always meet the standard when the influent had higher nitrogen concentration. Therefore, it could be considered to add denitrification filter behind BAF unit.
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