羟基对海水水质影响的研究  

Effect of Hydroxyl Radical on Quality of Seawater

作　　者：白敏菂[1] 邵秘华[2] 白希尧[1] 张芝涛[1] 

机构地区：[1]大连海事大学环境工程研究所,大连116026 [2]大连海事大学环境化学教研室,大连116026

出　　处：《交通环保》2003年第3期2-4,共3页

基　　金：国家自然科学基金重点项目( 6 0 0 310 0 1);国家重大基础研究前期研究专项 ( 2 0 0 2CCC0 0 90 0 )

摘　　要：低浓度羟基溶液能 10 0 %致死浮游动植物、细菌、弧菌、孢子 ,同时又大幅度改善了压载水水质。在每小时处理 2t压载水的模拟试验中取得如下改善水质数据 :对生物有害的亚硝酸盐、氨盐的下降率高达 98 35 %、99 5 % ;浊度下降 5 0 % ,水的透明度有明显的改善 ;COT从 0 5 4mg/L减少到未检出 ;由于羟基对细胞残骸的氧化分解 ,使TOC含量上升了 1倍 ;Cu、Pb、Fe下降幅度分别达到 38 1%、70 8%、4 0 3% ,对生物无害的Zn增加近 2倍 ,这是因Zn是许多酶和蛋白质分子的活性中心原子 ,羟基分解细胞后 ,溢出溶入水中所致。Low concentration hydroxyl is enough to kill the Zooplankton,phytoplankton,germ,vibrion,spore with 100% efficiency,meanwhile to improve significantly the quality of ballast water.The experimental data for 2 t/h system of ship's ballast water indicated that the removal efficiency of nitrite and ammonium salt reached to 98.35%and 99.5% ,the turbidity was decreased to 50% resulting in the better transparency,and COT was reduced from 0.54 mg/L to no test.Because of the oxygenolysis of hydroxyl to cell body,TOC increased 1 time,the contents of Cu,Pb,Fe decreased 38.1% ,70.8%,40.3% respectively.Zn which is no any harm to organism raised 2 times because Zn,as an activated center element of many enzymes and protein,was extracted out and dissolved into water after the cells were decomposed by hydroxyl.In this way,the aquatic species in maritime space and port are in safety.

关 键 词：羟基 压载水 水质 

分 类 号：X736.3[环境科学与工程—环境工程]