Reclaimed Rubber Desulphurization Emission Biological Purification Of Wastewater Purification Technology Of Washing Cooling

The wastewater treatment of the rubber-regeneration has been studied in this project. The main contents of this project conclude the follows aspects:1. To study and contrast several wastewater-treated methods of the rubber-regeneration in the lab;2. The preliminary industrial test research of the technology using to treat the wastewater;3. Design research of the equipments to treat the rubber-regeneration wastewater of the factory.In the lab experiments, purification efficiency of rubber particles, coagulants, oxidants and coal slays had been invested and compared for the wastewater treatment of the rubber-regeneration. Among these, the coal slay was confirmed the best treated-medium and the coal slay filtration method was determined the best method.The test applied to one Rubber-regeneration Factory in Kunming indicated that using the method of the "coal slays filtration" can make the CODcr concentration in the outlet water reduce to 49.9mg/L, which had met the first level of China National Discharge Standard of Sewage(GB8978-1996) ( The removal efficiency of CODcr:99. 33%, pH: 6.59-9.0, the light absorbance: 0.003~0.005A, the content of petroleum residue: 19. 5~22. 5mg/L).It is cheap to use the coal slay for the treatment of the wastewater of rubber-regeneration. There are 5000-ton rubber-regeneration products per year produced in one Rubber-regeneration Factory in Kunming. And the cost required to treat this kind of wastewater will occupy 0.022% of the value of 1.0-ton rubber products.The rubber-regeneration factories in China are mostly middle-factory or small factory. The results of this project will have a wide applied market.