Xi'an sewage treatment rate will reach more than 95% this year

From the assessment meeting of Xi'an City's “Twelfth Five-Year” municipal wastewater collection and pipe network reconstruction and reconstruction program held on the 6th, it is expected that by the end of 2012, Xi'an will add 255,000 m3/ton of sewage treatment capacity to 1,035,000 m3/ton. Processing capacity, sewage treatment rate will increase to 95%.

In order to improve the city's sewage treatment capacity, the original planning of the 6 sewage treatment plant sub-districts is still retained in the subproject, and based on the sewage pipelines that have been implemented and are being implemented in recent years, 8 additional sub-zones have been reserved for a total of 14 sewage treatment facilities. Plant division.

At present, the sludge from the 7 sewage treatment plants in Xi’an City has been treated with concentration, dewatering, or enrichment, digestion, and dehydration, and the sludge with a water content of 80% has been shipped. None of these have been properly treated and disposed of. .

In this project of urban pipe network reconstruction, a sludge treatment and disposal plan has been specially set up. Sludge treatment in the sewage treatment plant will be determined by centralized treatment and decentralized treatment. Sludge disposal will use greening fertilizer, building materials and sanitary landfill. The plan is 5 sludge stations, which are respectively treated by dryness, incineration, composting or brick-making (water-permeable bricks).