Efficiency of Sewage Treatment in a Large Hospital
- VernacularTitle:某大型医院污水处理净化效果
- Author:
Qing WEI
;
Hanmei GAO
- Publication Type:Journal Article
- Keywords:
Sweage;
Hospital;
Disinfection;
Biological reactor
- From:
Journal of Environment and Health
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the efficiency of membrane biological reactor (MBR) and sodium hypochlorite generator in a hospital sewage treatment. Methods The samples were collected before and after the sewage was treated by MBR and sodium hypochlorite. The sludge suspend particles, CODCr, BOD5, NH3-N, fecal coliform count and the content of residual chlorine were determined. Results After membrane biological reactor treatment, the removal rates of sludge suspended particles, CODCr, BOD5, NH3-N and fecal coliform was 82.25%, 80.25%, 75.52%, 75.84%, 96.75% respectively. After sodiun hypochlorite disinfection, the removal rate of fecal coliform counts was 99.96%, the content of residual chloride was 3.4 mg/L. Conclusion The efficiency of MBR and sodium hypochlorite is satisfactory in the sewage treatment in the large hospital, the treated sewage will meet the Chinese standard (GB8978-1996).
