焦点提醒：湖南某污水厂AAO工艺提质增效革新项目案例董明甫1，孔海霞2，张林1，何文光1，尹天平1，赵茂杰1（1.湖南安州成长团体无限公司，湖南 绵阳 622651；2. 中国市政项目华北设想研究总院无限公司西安分公司，陕西 西安 710016）Quality and Efficiency Enhancement Retrofit Project of an AAO Process in a Sewage Treatment Plant in SichuanDONG Ming-fu1,KON 董明甫1，孔海霞2，张林1，何文光1，尹天平1，赵茂杰1 （1.湖南安州成长团体无限公司，湖南 绵阳 622651；2. 中国市政项目华北设想研究总院无限公司 西安分公司，陕西 西安 710016） Quality and Efficiency Enhancement Retrofit Project of an AAO Process in a Sewage Treatment Plant in Sichuan DONG Ming-fu1,KONG Hai-xia2,ZHANG Lin1,HE Wen-guang1,YIN Tian-ping1,,ZHAO Mao-jie1 (1.Sichuan Anzhou Development Group Co., Lt, Mianyang 622651，China； 2. Xi'an Branch,North China Municipal Engineering Design & Research Institute Co. Ltd., Xi'an 710016, China) 摘 要：湖南省某污水处置厂一期项目原采取AAO工艺为主体并在二沉池后端增添“活性炭吸附+高效沉淀”深度处置单位的工艺，按照进厂废水水质进一步优化工艺设想参数，确保出水目标中氨氮、总氮和化学需氧量到达《湖南省岷江、沱江流域����APP水污染物排放尺度》(DB51/2311-2016)相干尺度要求，总磷须到达《地表水情况质量尺度》(GB3838-2002)的I类尺度(总磷<0.2 mg/L);其余目标到达《城镇污水处置厂污染物排放尺度》(GB18918-2002)一级A标，处置后的达标废水经管道就近引至干河子排放。提质革新项目旨在对原有AAO池、水解酸化池、外回流等进行革新优化。提质革新后颠末一年运转，成果显示全年平均出水数据NH3-N≤1.5 mg/L、TN≤4.6 mg/L、TP≤0.1 mg/L、COD≤20 mg/L。技改后在节能降耗方面到达较着的改良，吨水药剂、电费、人工分析本钱共下降47.56%。 要害词：AAO工艺；提质增效；节能降耗；项目案例 Abstract: The first phase of a wastewater treatment plant in Sichuan Province, China, originally used the AAO (Anoxic/Anaerobic/Oxic) process as the main treatment process, with an additional "activated carbon adsorption + high-efficiency sedimentation" deep treatment unit at the end of the secondary clarifier. Based on the optimization of the influent wastewater quality, the process design parameters were further improved to ensure that the effluent meets the relevant standards of the "Water Pollutant Discharge Standard for Minjiang and Tuojiang River Basins in Sichuan Province" (DB51/2311-2016), with ammonia nitrogen (NH3-N), total nitrogen (TN), and chemical oxygen demand (COD) meeting the Class I standards of the "Environmental Quality Standards for Surface Water" (GB3838-2002) (TP<0.2 mg/L); other indicators meeting the Class A standards of the "Pollutant Discharge Standard for Urban Wastewater Treatment Plants" (GB18918-2002). The treated effluent that meets the standards is discharged to the nearby Ganhezi through pipelines. The quality improvement project aims to optimize the original AAO tank, hydrolysis acidification tank, and internal recirculation. After one year of operation, the results showed that the average annual effluent data were NH3-N≤1.5 mg/L, TN≤4.6 mg/L, TP≤0.1 mg/L, and COD≤20 mg/L. The technical upgrade achieved significant improvements in energy saving and consumption reduction, with a total reduction of 47.56% in unit water dosage of chemicals, electricity costs, and labor costs. Keywords: AAO process; quality improvement;energy saving and consumption reduction;engineering case 为实现生态文明扶植新前进，十九届五中全会提出，延续削减污染物排放总量、延续改良情况质量、提高资本操纵效力，环保与可延续成长的理念该当深切到我们每一个人的认识中。污水处置作为与杰出生态情况间接挂钩的一项，时辰影响着人们的保存与糊口。据统计，污水处置中的碳排放量约占碳排放总量的1-2%[1]，在碳中和、碳达峰的年夜布景下，实现污水处置绿色低碳成长已成为全球存眷的主要议题。在日趋严重的能源压力和情况挑战的布景下，污水处置厂作为水资本环保的“直达站”，火急需要经由过程节能降耗，实现污水处置行业的绿色低碳可延续成长。2025年是“十四五”计划的收官之年，也是碳排放强度降落18%的束缚性方针之年，实现减污降碳宏远方针仍需砥砺前行。 1项目布景 1.1项目概述 湖南省某污水厂位在乡镇，占地面积约40.05亩，设想范围1.4万吨/天，2020年建成，2021年投入运转，该项目总投资 15000万元，环保投资545.93万元。该污水处置厂首要工艺流程为粗格栅和晋升泵房+细格栅和曝气沉砂池+调理变乱池+（化学沉淀池）+水解酸化池+A/A/O生化池+二沉池+活性炭吸附+高密度沉淀池+臭氧接触氧化+紫外线消毒。污水厂设想进水水质为70%糊口污水30%工业废水，出水目标中氨氮、总氮和化学需氧量到达《湖南省岷江、沱江流域水污染物排放尺度》(DB51/2311-2016)相干尺度要求，总磷须到达《地表水情况质量尺度》(GB3838-2002)的I类尺度(总磷<0.2mg/L)；其余目标到达《城镇污水处置厂污染物排放尺度》(GB18918-2002)一级A标，处置达标后的废水经管道就近引至干河子排放。
湖南某污水厂AAO工艺提质增效革新项目案例推荐资讯
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