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宋在峻,李榮好 木浦大學校 工業技術硏究所 1995 工業技術硏究誌 Vol.5 No.-
Leachates from solid waste landfill in Kwangju City was collected, and its characteristics were analyzed. The leachate treatment removal characteristics of bio-filter filled with Netring filter media were experimentally examined with constant temperature, pH value and variable BOD loading and recirculation ratio. The results obtained are as follows: pH, TCOD, TBOD5, TKN, T-P's average concentrations were 6.5, 24,320mg/ℓ, 14,914mg/ℓ, 722.4mg/ℓ, 2.94mg/ℓ respectively. The ratio of TBOD/TCOD was 0.61 most of the organics is biodegradable by microorganisms, thus judged to require biological treatment. As a result of treatment with submerged biofilter maintaining F/M ratio of leachate at 0.1~0.4kg BOD/ kg MLVSS. day, the efficiency of BOD5 removal was 69.9~96.1% in raw leachate treatment process, and anaerobic digestive leachate process obtained BOD5 removal efficiency 51.4~90.7%. The BOD5 removal efficiency increases with the recirculation ratio, but the effenciency of increase becomes smaller as the recirculation ratio increases over 50.
宋在峻 木浦大學校 沿岸環境硏究所 1994 沿岸環境硏究 Vol.11 No.1
This paper was concentrated on estimating the possibility of application of biological fluidized bed to the low concentrated wastewater treatment and reuse. This study were conducted by continuous type rectors at HRT 1hr, 2hr, 3hr and F/M ratio from 0.2 to 0.4/day. The results obtained were as follows. 1. As a results of the treatment of the low concentrated wastewater of influent BOD 70-94㎎/l, BOD removal ratios coulde be reached to 94% at HRT 1hr. 2. Treatment efficiency by BFB of low concentrated wastewater was nearly same even if in case of F/M ratio variation of 0.2 to 0.4 regardless of F/M ratio. 3. As a prevent to anaerobic state and increased oxygen transfer rate, the air lift pump is effiency. 4. A results of the treatment of the low concentrated wastewater by BFB is that the industrial water is the first class and the drinking water is the third class, therefore, it could be reuse.
유용미생물을 첨가한 세라믹의 수질개선 성능에 관한 연구
송재준 ( Jee-june Song ),이지은 ( Ji-eun Lee ),홍순강 ( Sun-gang Hong ) 한국환경기술학회 2005 한국환경기술학회지 Vol.6 No.3
The development of functional ceramic by effective microorganism would contributed to not only water quality improvement but also atmosphere, soil purification. 30~40% of COD removal efficiency at original ceramic condition, COD removal efficiency of about 76% at PSB powder and COD removal efficiency of about 76% at EM powder and ceramic could be achieved after 24 hours. T-N removal efficiency was 79.1% at EM bowl that was the highest removal of different condition. Water quality improvement injected only EM was more efficient than the condition injected PSB and EM. Among the various condition the most efficient condition was EM bowl condition. It was considered that EM injection caused the reduction of pore diameter and the increase of pore area.
송재준 ( Jee-june Song ),이지은 ( Ji-eun Lee ),정의철 ( Eui-cheul Joung ) 한국환경기술학회 2004 한국환경기술학회지 Vol.5 No.3
Recently a great portion of ammonia nitrogen in the domestic waste water discharge into rivers or lakes without proper water treatment. A part of these polluted ground water is used as sources of drinking water. Especially the ammonia nitrogen concentration in source of drinking water from the Yeong-San river is very high, it raise a trouble sometimes in water treatment process. The infant is infected with Blue Baby by Nitrogen Nitrate which is generated from Ammonia Nitrogen by nitrification. This study shows ammonia removal efficiencies of pilot plants in water treatment plant. The summarized results are as follows 1. In the process of experiment, NH<sub>3</sub>-N concentration is 1.62~8.49 ㎎/L at raw water and 0.00~0.24 ㎎/L at treated water. 2. Also, the removal rate at each process was shown 92.3~100% in the pre-chloride treatment facility. 3. The THMs concentration by way of the pre-chloride was shown 8.7~124.0 ㎍/L, but THMs removal rate at the activated carbon tower was shown highly 98.6%. Therefore, we would get fresh water for drinking.
송재준 ( Jee-june Song ),김백범 ( Baek-beom Kim ),홍순강 ( Sun-gang Hong ) 한국환경기술학회 2015 한국환경기술학회지 Vol.16 No.2
Yeongsan river is one of four national rivers as represented Gwangju and Jeollanam-Do. 1.8 million population are concentrated in the upper region of the Yeoungsan river so there are flowing in Yeoungsan river environmental pollution sources, including nutrient salts like domestic sewage. Latest, through business of save the river, there are trying to improve water state by increasing river maintenance water, letting off pollution sources`s inflow by make agricultural dam`s embankment higher and increasing self-purification capacity. Flux is secured, on the other hand, problem frequently occur by algal bloom because of influencing climate change and increasing water`s detention period. Occurring algae is connected algae bloom due to non-point pollutant source`s excessive inflow and problem of Yeoungsan river`s structural weaknesses. So improper influence is appeared at waterfront space. Therefore we need detailed and systematic management plan urgently. Especially owing to a period of water shortage, March~June`s pollution is serious. So eutrophication frequently occur. Apprehending pollution sources`s degree at the upper region of the Yeoungsan river, by investigating year-on-year change that apprehend pollution degree. And by checking seriousness of regional groups pollution degree, we map out a specific plan. And then, have to manage regional groups suitably. We have to notice of study, through long-term study, management and additional survey, have to do our endeavor for water improvement of Yeoungsan river.