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- W204000830 abstract "When denitrification was connected with a single stream process by using biofilter and sulfur-limestone, it was found that such connection enabled highly efficient nitrification without special unit operation of microorganisms or injection of external carbon sources which is being shown in general biological treatment processes. It was observed that in the trickling filter bed, decomposition of organic substances and highly efficient nitrification by both the forced pressure feed trickling and the air fan were simultaneously done. In the denitrification tank where sulfur-limestone was mixed at a certain ratio, limestone was used by autotrophic microorganisms as a source of supply for alkalinity, and nitrate -N was denitrified into nitrogen gas. And in the sulfur-limestone autotrophic denitrification, was denitrified as a sulfur compound in reduction state was oxidized into a final output of . The mean concentration of the discharge water was 8.6 mg/l for T-N and 0.8 mg/l for T-P, respectively, and their mean treatment efficiency was 79.2% and 80.8%, respectively. Implementing highly efficient denitrification without injection of an external organic carbon source or internal return, it is concluded that the proposed process is suitable for a sewerage in a small village with the merits of low power consumption and easy maintenance." @default.
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- W204000830 date "2006-01-01" @default.
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- W204000830 title "A Study on Nitrification and Denitrification in Biofilter & Sulfur- Limestone Single Stream Process" @default.
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