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최충식,하청근,권기석 7개 국립대학교 환경연구 논문집 공동발행 위원회 2002 환경연구논문집 Vol.2 No.1
The aim of the thesis is to value the features of Sequencing Batch Reactor and to discover the optimum condition by using synthetic wastewater. So as to develop the economical, efficient wastewater treatment technology which can remove substrate and nitrogen compounds by SBR Fill and Reaction time control. The results are summarized as fallows. 1. COD and T-N removal efficiency was below 95% in case of volumetric organic loading of 3㎏ BOD/㎥ day by Sequencing Batch Reactor. 2. Almost COD removed in the Fill time. 3. Various DO concentration are maximum in the Reaction time, and minimum in the Settle and Idle time. 4. COD and T-N were almost removed in Fill and Reaction time, the most suitable period was 5-3-2hr(Fill-Reaction-Settle). Removal efficiency of COD and T-N were over 98%.
海洋微生物에 의한 高濃度鹽分含有 廢水處理의 基礎硏究 (Ⅰ)
尹星閏,河淸根,李泰永,張哲鉉,朴勝祚 동아대학교 환경문제연구소 1989 硏究報告 Vol.12 No.1
This study considered organic matter decomposition by ocenic microbes as researching organic matter decomposition on kinetics which is in salinity wastewater under condition that the salinity contains 18,000㎎/l Cℓ^(-) The results of this study are obtained as following : 1. Oceanic microbe of this study is yeast, R. glutinis var. salinaria of marina of Rhodotorula genuses. 2. When retention time of filter bed in Bio-coal tower is 24 hr, 1/2V_(max) is 33.75㎎/l·hr, When 72hr, 1/2V_(max) is 15㎎/l·hr, When 120hr, 1/2V_(max) is 10㎎/l·hr. 3. The reaction between oceanic microbes and organic matter is said to be first order and when contact time of filter bed is 2.0hr, k is 0.40 day^(-1).