城市再生污水回用于循环冷却系统的动态模拟研究  

A DYNAMIC SIMULATION TEST ON REUSE OF RECLAIMED MUNICIPAL WASTEWATER IN CIRCULATION COOLING WATER SYSTEM

作　　者：赵庆良[1] 王绍华[2] 祝琳[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]天津市市政工程设计研究院,天津300180

出　　处：《水处理技术》2007年第11期34-37,共4页Technology of Water Treatment

基　　金：国家重点基础研究发展计划(973)项目(2004CB418505)

摘　　要：通过动态模拟实验重点考察了回用过程中再生水水质的变化情况以及流速的变化对瞬时污垢热阻增长和污垢成分的影响。结果表明,冷却水的浓缩对Cl-的累积作用十分明显,而Ca和Fe是构成污垢的主要成分,Fe2+可以和PO43-生成NaFePO4沉积物;NH4+-N由于硝化反应而被大量消耗;当水流流速较低时,瞬时污垢热阻主要受水中溶解氧浓度以及水温的影响。Reuse of the reclaimed municipal wastewater in the industrial recirculation cooling water system is one of the effective ways to lessen the water resource shortage. Through dynamic simulation, a study was performed to investigate the variety of reused water quality and effect of flow velocity on heat exchange capacity of cooling water and component of scaling. It was showed that the concentration of cooling water had obvious action on accumulating Cl^-, while Ca and Fe were main constituents in scaling, Fe^2＋ could generate NaFePO4 sediments with PO4^3-. Concentration of NH4^＋-N was greatly consumed because of nitrification. Heat exchange capacity was mainly controlled by concentration of dissolved oxygen and temperature of cooling water when flow velocity was slow.

关 键 词：城市污水再生 循环冷却水 动态模拟 

分 类 号：X703.1[环境科学与工程—环境工程]