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Experimental Studies on the Simultaneous Removal of Organic Substances and Nitrogen by Submerged Biofilm Process

Wang Baozhen; Wang Lin; Shi Shuangxi; Ma Fang;Yan Quanda; Liu Renfen  
A bench-scale study was carried out to research the possibility and feasibility of the submerged biofilm process for the simultaneous removal of organic and nitrogen. The optimal operating conditions and parameters were determined by comparison study under different operating conditions. It has been found that the submerged biofilm process developed by the authors are very efficient in the simultaneous removal of organic substances in terms of COD and BOD5 and total ammonia nitrogen with quite high efficiencies and the surplus biomass was only 1/20 ~ 1/10 of surplus of activated sludge from a treatment plant using AS process of the same treatment capacity, which will save the capital and O/M costs significantly in sludge treatment and disposal. Besides the process is also easier to operate because there is no need to return the biomass as that in AS process.
【CateGory Index】: X783.03
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