污水深度处理臭氧氧化系统工程造价分析  

Analysis on Construction Cost of Ozone Oxidation Process for Wastewater Advanced Treatment and Reuse

作　　者：赵文玉[1,2] 张逢[1] 胡洪营[1,3] 卢如[1] 陈玉芬[2] 

机构地区：[1]清华大学环境学院环境模拟与污染控制国家重点联合实验室,北京100084 [2]桂林理工大学环境科学与工程学院,广西桂林541004 [3]清华大学深圳研究生院,广东深圳518055

出　　处：《环境科学与技术》2012年第10期139-143,共5页Environmental Science & Technology

基　　金：国家水体污染控制与治理科技重大专项课题(2008ZX07313-002);广西科学研究与技术开发计划项目(桂科攻0992022-7)

摘　　要：系统掌握污水深度处理臭氧氧化系统的工程造价构成及其影响因素对降低其工程造价具有重要意义。详细分析了臭氧发生、臭氧投加、臭氧接触反应及臭氧尾气处理等污水深度处理臭氧氧化系统4个子系统的工程造价构成及其影响因素,结果表明：臭氧发生单元的造价所占比重最大,高达60%~70%,其次是臭氧尾气破坏设备（16%~18%）和臭氧投加单元（12%~15%）,臭氧接触反应设备的造价所占比重最小,约为3%~5%。影响臭氧氧化系统工程造价的主要因素除处理规模外,还有臭氧投加量、臭氧气体浓度及水力停留时间等工艺参数,其中臭氧投加量和臭氧气体浓度的影响较大。在达到处理要求的情况下,提高臭氧利用率、降低臭氧投加量以及升高臭氧气体浓度,是有效降低臭氧氧化系统工程造价的关键。It is very significant to decrease the construction costs that the composition and impact factor of ozone oxidation process for wastewater advanced treatment are systematically grasped.The construction costs of four subsystems of ozone oxidation process for wastewater advanced treatment including ozone generator system,ozone adding device,ozone reactor and exhaust gas treatment system,were analyzed.It is proved that the proportion of the construction costs of ozone generator system is the highest as 60%~70%,the exhaust gas treatment system as 16%~18%,the ozone adding device as 12%~15%,and the ozone reactor is lowest as 3%~5%.Some technological parameters as ozone dosage,ozone gas concentration and hydraulic retention time besides influent flow are the main factors of construction costs of wastewater reuse system by ozone oxidation and the more important factors are the ozone dosage and ozone gas concentration.On the premise of improving the treatment effect,the key measures to decrease the construction costs of ozonation system is improving ozone utilization rate by reducing ozone dosage and increasing ozone gas concentration.

关 键 词：污水回用 臭氧氧化 工程造价 臭氧利用率 臭氧气体浓度 

分 类 号：X703[环境科学与工程—环境工程]