Investigation on the Pollution of Cryptosporidiumparvum and Giardia lamblia Stiles in Drinking Water and Wastewater in Shenzhen
- VernacularTitle:深圳市饮用水污水中隐孢子虫和贾第鞭毛虫的调查
- Author:
Shuyuan YU
;
Zhicheng ZHANG
;
Baoying YE
- Publication Type:Journal Article
- Keywords:
Drinking water;
Wastewater;
Giardia lamblia Stiles;
Cryptosporidium
- From:
Journal of Environment and Health
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the pollution of parasitic protozoa in drinking water and wastewater in Shenzhen in or-der to present evidence to establish the national hygienic standard for parasitic protozoa in drinking water.Methods Water samples of resource water,fin ished wa ter from3water plants,and post-treated wastewater samples from3wastewater treatment plants in Shenzhen city were collected.Para sitic pro tozoa Giardia lamblia Stiles and Cryptosporidiumparvum were detected by following steps:filtering,washing,magnetic isolation and staining.Results Giardia lamblia Stiles and Cryptosporidiumparvum were not found in samples from raw water and finished water,while they were found in post-treated wastewater samples from2wastewater treatment plants.Conclusion The results indicated that the prob lem of Giardia lamblia Stiles and Cryptosporidi -umparvum pollu tion in the water supplying systems didnt exist at present,but Giardia lamblia Stiles and Cryptosporidi umparvum in the post-treated wastewater were the potential pollution source to surface water.
