菌藻共生体去除废水中砷初探  

A Primary Study on Removal of Arsenic in Wastewater by Arsenic-resistant helotism

作　　者：廖敏[1] 谢正苗[1] 王锐 

机构地区：[1]浙江农业大学环境与资源学院土化系,杭州310029 [2]杭州市环境科学研究所,杭州310007

出　　处：《环境污染与防治》1997年第2期11-12,38,共3页Environmental Pollution & Control

摘　　要：研究了菌藻共生体对废水中砷的去除效果。研究发现：培养分离所得菌藻共生体中以小球藻为主，此时菌藻共生体积累砷达7.47g／kg干重。在引入菌藻共生体共培养16h后，其对无营养源的含As（Ⅲ）、AS（Ⅴ）的废水除砷率达80％以上，并趋于平衡；含营养源的AS（Ⅲ）、AS（Ⅴ）的废水中，菌藻共生体对AS（Ⅴ）的去除率大于As（Ⅲ），对AS（Ⅴ）去除率超过70％，但对As（Ⅲ）的去除率也在50％以上，在除砷过程中同时出现砷的解吸现象。在无营养源条件下，对As（Ⅲ）、As（Ⅴ）混和废水的除砷率超过80％。The removal ability of arsenic by arsenic-resistant helotism in wastewater was studied. The results showed that after incubation and selection, the arsenic-resistant helotism system mainly was chlorella valgaris, containing As 7. 47 g/kg on dry basis. Adding arsenic-resistant helotism into As (Ⅲ), As (Ⅴ) wastewater without nutrients and then incubated 16 hours-, the percentage of removed As exceeded 80 %; The percentage of removed As (Ⅴ) was higher than that of As (Ⅲ) in As wastewater containing nutrients, the percentage of removed As (Ⅴ) and As (Ⅲ) execeeded 70 % and 50 % respectively, but a part of arsenic desorbed at the same time. More than 80 % As was removed in mixed wastewater of As (Ⅲ) and As (Ⅴ) without nutrients.

关 键 词：菌藻共生体 砷 去除率 废水处理 

分 类 号：X703[环境科学与工程—环境工程]