闽南沿海城市污水厂污泥产率及产量研究  

Research on Sludge Yield and Output of Municipal Wastewater Treatment Plant in a Coastal City of Southern Fujian

作　　者：晋艺欣 潘晓玥 黄剑南 毋兆颖 周彦灵 安叶 王德震 刘立群 JIN Yi-xin;PAN Xiao-yue;HUANG Jian-nan;WU Zhao-ying;ZHOU Yan-ling;AN Ye;WANG De-zhen;LIU Li-qun(Department of Municipal Planning,Beijing Tsinghua Tongheng Urban Planning&Design Institute,Beijing 100085,China;Technology Center of Quanzhou City Administration Bureau,Quanzhou 362000,China)

机构地区：[1]北京清华同衡规划设计研究院有限公司市政规划研究所,北京100085 [2]泉州市城市管理局技术中心,福建泉州362000

出　　处：《中国给水排水》2024年第22期40-46,共7页China Water & Wastewater

摘　　要：为科学预测污泥量,助力形成设施完备、运行安全的污泥无害化资源化处理体系,对闽南沿海某市29座城镇生活污水厂经验污泥产率影响因素及产率、产量发展趋势进行了系统研究。29座污水厂总设计处理规模123×10^(4) m^(3)/d,主流工艺包括(改良)氧化沟、AO或AAO、CASS等。随着污水提质增效的推进,市域经验污泥产率由2020年的1.11 tDS/10^(4)m^(3)增长至2021年的1.25 tDS/10^(4) m^(3),但仍略低于全国城市平均水平(1.62 tDS/10^(4) m^(3))。受闽南区域特点影响,污泥产率与进水BOD5及气温的相关性不显著;中型规模污水厂(改良)氧化沟工艺污泥产率最高,且中型规模污水厂污泥产率整体大于小型和大型污水厂;平均污泥产率逐年小幅上涨,但考虑闽南地区特点,远期污泥产率仍可能低于北方城市。建议类似地区污泥设施规划设计重点考虑大中型污水厂需求,并为污水提质增效、初雨截流、出水提标改造等因素充分预留缓冲,弹性应对气温、降水等冲击,统一谋划,分期实施;统一明确污水厂出厂污泥要求,以保障污泥处理处置系统安全运行。In order to scientifically predict the sludge output,and help to form a complete harmless and resource-based sludge treatment system with complete facilities and safe operation,the empirical influencing factors and the development trend of sludge yield of 29 urban sewage treatment plants in a coastal city in southern Fujian were systematically studied.The 29 WWTPs have a total capacity of 123×10^(4) m^(3)/d,and the treatment process includes(improved) oxidation ditch,AO or AAO,CASS,etc..With the improvement of sewage treatment quality and efficiency,the experienced sludge yield of the city increased from 1.11 tDS/10^(4) m^(3) in 2020 to 1.25 tDS/10^(4) m^(3) in 2021,which,however,remained slightly lower than the national average(1.62 tDS/10^(4) m^(3)).The relationship between sludge yield and influent BOD5 and temperature is not significant,which is mainly due to the regional characteristics of southern Fujian.Sludge yield of medium-scale sewage treatment plants using(improved) oxidation ditch process is the highest in the central part,and the sludge yield of medium-sized sewage treatment plants is generally higher than that of small- and large-scale sewage treatment plants.Though developing trends indicated a slight increase in average sludge yield yearly,it might be lower than that of the northern city in the long-term considering the regional characteristics of southern Fujian.It is suggested that the plan & design of sludge treatment facilities in similar areas should focus on the demands of large-and medium-scale sewage treatment plants,and fully reserve enough buffer space for various factors,including improvement of sewage treatment quality and efficiency,interception of initial rainwater,and upgrading and reconstruction of effluent,so as to response resiliently to shocks of climate change and rainfall,plan in uniformity and implement in stages.At the same time,it is suggested that the sludge requirements of the sewage treatment plant should be unified,which is conducive to the stable operation of the slu

关 键 词：城市污水厂 污泥产率 污泥量 污水提质增效 

分 类 号：TU992[建筑科学—市政工程]