化学机械浆漂白废水BOD_5测定中的溶解氧异常及消除方法  

Abnormal Phenomenon in BOD_5 Measurement of Chemimechamical Pulp Waste Water and its Elemination Method

作　　者：盘爱享[1] 施英乔[1] 孙玉[1] 丁来保[1] 李萍[1] 房桂干[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏南京210042

出　　处：《造纸科学与技术》2008年第1期34-36,共3页Paper Science & Technology

基　　金：国家"十一五"科技支撑专题(2006BAD18B0503)

摘　　要：本文研究了过氧化氢漂白化机浆废水BOD_5测定过程中出现的异常现象,分析了残余过氧化氢分解释放出氧气是导致异常现象的原因。探索了消除过氧化氢干扰的方法,添加KI还原分解过氧化氢,KI与残余过氧化氢质量之比为2:1.1,搅拌分解4h,BOD_5测定取得了良好的效果。Abnormal phenomenon had been studied when BOD_5 of chemimechanical pulp wastewater blenched with H_2O_2 was measured,it maybe results in oxygen releasing of the remaining H_2O_2.Some methods to remove H_2O_2 were discussed.Throwing suitable KI at the rate of which to the remaining H_2O_2 2:1.1 in the waste water,stirring for 4 hours at the same time,at last,the value of BOD_5 was measured successfully and accurately.

关 键 词：BOD_5 溶解氧异常 过氧化氢分解 过氧化氢漂白废水 

分 类 号：X793[环境科学与工程—环境工程]