Viable Study On Treatment Of Corn Fermentation Wastewater By Gravel Contact Oxidation Reactor (GCOR)

China is a large agricultural country, Jilin Province is the main grain producing areas, mainly to the further processing of grains industry in Jilin economy accounted for a very significant proportion. So study of the corn fermentation wastewater treatment, for the development of more effective treatment of corn fermentation process wastewater, scientific and rational use of resources, reduce corn fermentation of organic wastewater emissions and so has practical significance. And for various industrial enterprises corn processing wastewater treatment designed to provide the reference and basis. As a result of the test used in Gravel contact oxidation reactor has not produced residual sludge, no secondary sedimentation basin and other facilities, and technology is simple, easy on modular advantages, especially for small and medium enterprises. Investment and operating costs can be saved and depth treatment to effluent can be reused.This paper studies the Gravel contact oxidation reactor(GCOR) treat with corn fermentation wastewater. And through biological membrane cultivation, domestication and full-load operation of the data analysis stage,the concludes is that at temperature of 30°C, hydraulic retention time of 10 hours, with the amount of 2.2m3/h, the results is good. CODcr removal rate over 80%, Ammonia removal can reach 97%, SS removal rate is over 95%. Although the system occurred filamentous expansion during the study , as appropriate to take timely measures to contain lived filamentous growth, very good control of the sludge expansion, as well as give the reference method to sludge expansion control .Another feature of this technique is sludge reduction. In the 118 days of system operating, no sludge discharge. no sludge overflow. In the reactor, we also found micro-animals such as Tubificids. This explains that the inner of the reactor have many species and with a complex food chain, together with the aerobic and Anaerobic coexistence environment and the common biochemistry action to achieve sludge zero emissions.