Based on Statistical Analysis of Construction and Operation Status of Urban Sewage Treatment Plants in Guizhou Province

Guizhou has built 98 urban sewage treatment plants which main treatment process were mature technologies with nitrogen and phosphorus removal capabilities such as oxidation ditch, A/O process and SBR process and its improvement in the "Eleventh Five-year Plan" period. In the full completion of the national "Eleventh Five-Year" pollutant emission reduction task there are some problems of plants like lagging pipeline construction and construction of small-scale. Therefore, it is important that strengthen the upgrading of sewage treatment technology and facilities, enhance professional skills training of technical staffs in the "Twelfth Five-Year Plan" Period.