Research on the sewage treatment in high altitude region based on Lhasa Sewage Treatment Plant

1st International Global on Renewable Energy and Development

Xu, Jin^1 ; Li, Shuwen^2

Agricultural and Animal Husbandry College of Tibet University, Tibet Nyingtri, 860000, China^1

School of Marxism of Hohai University, Jiangsu Nanjing, v210098, China^2

关键词: Concentration ratio;    Domestic sewage treatment;    Ecological protection;    Economic development;    Environmental quality;    Operation and management;    Pollution prevention;    Sustainable economics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/100/1/012069/pdf
DOI  :  10.1088/1755-1315/100/1/012069

来源: IOP

【 摘 要 】

Sewage treatment is of great significance to enhance environmental quality, consolidate pollution prevention and ecological protection, and ensure sustainable economic and social development in high altitude region. However, there are numerous difficulties in sewage treatment due to the alpine climate, the relatively low economic development level, and the backward operation and management styles, etc. In this study, the characteristics of influent quality in the sewage treatment plant in Lhasa are investigated by analysing the influent BOD5/COD and BOD5/TN, comparing key indexes recorded from 2014 to 2016 with the hinterland. Results show that the concentration of influent COD, BOD5, NH3-N and SS in the Lhasa sewage treatment plant, in which the sewage belongs to low-concentration urban sewage, is smaller than that in the domestic sewage treatment plants in the mainland. The concentration ratio of BOD5/COD and BOD5/TN is below 0.4 and 4, which indicates that the biodegradation is poor and the carbon sources are in bad demand. The consequences obtained play a vital role in the design, operation and management of sewage treatment plants in high altitude region.