Study On The Application Of Sludge Disposal Scheme Based On The Characteristics Of Sludge From NanChang Sewage Treatment Plant

With the level of urbanization of China’s rising urban sewage treatment facilities of rapid development, a sharp rise in the amount of sludge produced, the problem of sludge treatment consequent disposal become more prominent. According to the National sludge relevant technology policy states:" Urban sewage treatment plant new construction, renovation and expansion of the time, sewage treatment and disposal facilities should be planned and sludge treatment facilities at the same time, while the construction and put into operation." As the capital city of Nanchang, Jiangxi Province, there are four treatment and disposal of sewage sludge is still not a reasonable solution to the current sludge treatment and disposal methods for deep dehydration+garbage landfill, causing secondary pollution to the environment and a waste of resources. The theory Nanchang local sludge characteristics as the basis for an analysis of the applicability of the existing sludge disposal and processing technology in Nanchang, select a disposal program for Nanchang. Based on the program Municipal sludge treatment plant should be designed to achieve sludge reduction, stabilization, harmless and resource utilization requirements, sludge treatment and disposal to address local problems.The main results of this article are as follows:1. Through research and testing methods in terms of the physical and chemical properties of the nutrient content, organic matter, heavy metals, such as calorific value Nanchang muddy sewage sludge were analyzed with a high moisture content sludge obtained locally, rich nutrient content, heavy metal content is not high, low calorific value and other characteristics; the status of sludge treatment and disposal Nanchang conducted an investigation and found that there are many problems landfilled after dehydration.2. Based sludge wastewater treatment plant in Nanchang City, for a variety of sludge disposal methods to analyze the applicability of Nanchang, select "red soil improvement or landscaping," the disposal. Combined with "urban sewage treatment plant sludge treatment and disposal technologies Guide," the status quo processing technology, the local level of economic development factors in selecting treatment aerobic fermentation; through technical and economic comparison, opt for the more advanced intelligent control current aerobic fermentation (CTB) technology. Finalize the sludge treatment and disposal solutions for "CTB+red soil improvement or landscaping."3. Choose the way of the four centralized sewage sludge treatment, sludge treatment plant in Nanchang a site analysis; determine the operational parameters of CTB process; inter main structures (conditioner storage, between mixing, fermentation, biofilter deodorant, etc.) to design, design sludge treatment plant plan, process flow diagrams, and other major structures orthographic drawings.