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http://dx.doi.org/10.4491/KSEE.2016.38.2.79

A Study on the Biological Treatment of RO Concentrate Using Aerobic Granular Sludge  

Kim, Hyun Gu (BlueBank Co., Ltd.)
Ahn, Dae Hee (BlueBank Co., Ltd.)
Cho, Eun Ha (TAEYOUNG Engineering & Construction Co., Ltd.)
Kim, Han Yong (TAEYOUNG Engineering & Construction Co., Ltd.)
Ye, Hyoung Young (LOTTE Engineering & Construction Co., Ltd.)
Mun, Jung Soo (LOTTE Engineering & Construction Co., Ltd.)
Publication Information
Journal of Korean Society of Environmental Engineers / v.38, no.2, 2016 , pp. 79-86 More about this Journal
Abstract
The purpose of this study is to efficiently improve biological sequencing batch reactor (SBR) system of high-concentrated nitrate nitrogen in reverse osmosis (RO) concentrates by total dissolved solids (TDS) regulation. Since a laboratory-scale SBR system had been operated, we had analyzed specific denitrification rate (SDNR) and specific oxygen uptake rate (SOUR) for microbial activity in according to various injection concentration of TDS. As a result, higher injection concentration of TDS decreased SDNR, and delayed denitrification within denitrification process. Moreover, the higher injection concentration of TDS was, the lower microbial activity was during operation of laboratory-scale SBR system. Therefore, the regulation of TDS injection concentration is necessary to improve efficiency of nitrate nitrogen in the biological SBR system, and treatment of calcium ion ($Ca^{2+}$) is also specifically focused to remove nitrate nitrogen. Moreover, analytical data of SDNR and SOUR can be the effective kinetic design parameters to application of biological treatment of RO concentrate by aerobic granular sludge (AGS).
Keywords
Aerobic Granular Sludge; Nitrate; RO Concentrate; Sequencing Batch Reactor;
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Times Cited By KSCI : 12  (Citation Analysis)
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