Xu Qingming
(Jiangsu Minghua New Non-metallic Mineral Materials Co., Ltd., Nanjing 21000, Jiangsu)
I. Introduction
Our company has carried out an in-depth research on the treatment of municipal wastewater as the most important topic of environmental protection, and has developed a new generation of products to create a new set of rapid wastewater treatment process, and the treated water can be discharged up to the standard or recycled for secondary use. The treated water can be discharged according to the standard or recycled for secondary use, and the sludge produced can be processed into highly efficient and green compound fertilizer without secondary pollution, which has good social, environmental and economic benefits.
(A) The nature of ultrafine water quality improvement powder
My company in a variety of non-metallic minerals selected with excellent ion exchange, adsorption, plasticity and adhesion, can quickly flocculation of suspended solids and other organic matter in sewage, decolorization effect of the minerals to produce ultrafine water quality improvement powder. The improved powder has high activity, low density, high strength, non-combustible, non-toxic, tasteless, non-acidic and other physical and chemical properties.
(B) Preparation and components
Ultra-fine water quality improvement powder is made of a variety of non-metallic minerals through the selection, preparation, calcination, crushing, grinding, compounding, carbonization and other processes.
Component identification and analysis results are shown in Table 1:
Table 1
Two, the promotion and application
The product was tested in Nanjing Jiangxinzhou sewage treatment plant, its process equipment is simple, brings together the advantages of coagulation, biochemical method, avoiding their shortcomings, unlike its flocculation is better than coagulation. The removal rate of organic matter and nitrogen and phosphorus in the sewage is high, the decolorization effect is good, the effluent is colorless and tasteless, and it reaches the national secondary discharge standard.
The use of ultra-fine water quality improvement powder on the Nanjing Yangzi Petrochemical Co., Ltd. sewage treatment plant of chemical wastewater for the test, the effluent reaches the national secondary discharge standard or more. Experiments have proved that: with this product to deal with oily sewage, its low cost, simple process, capital investment is greatly reduced, the slag containing oil can be mixed with coal as fuel.
The environmental monitoring station in Xinmi, Henan Province, the city's Rongchang Paper Co., Ltd. production of wastewater with ultrafine water quality improvement powder treatment, can reach the national secondary emission standards.
Yangzhongda washing plant using the process technology and pharmaceuticals to solve the sewage treatment problems plagued for many years.
The product can not only deal with sewage, the improvement of a larger area of the water environment also has satisfactory results. The test report of Jiangsu Institute of Environmental Science and Technology pointed out that "the water purification agent has a faster settling speed when treating sewage."
Three, appraisal, awards, patents
April 2005 Jiangsu Provincial Department of Science and Technology commissioned by the Nanjing Municipal Bureau of Science and Technology to organize and invite the China Building Materials Association, the Silicate Society, the Paper Institute, the National Institute of Environmental Protection, and other experts in the city of Xinmi, Henan Province, the identification of papermaking sewage treatment process technology.
"Ultrafine water quality improvement powder" was awarded a utility model patent, patent number: ZL02157275.5.