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박진식(Jin Sick Park) 한국수처리학회 2002 한국수처리학회지 Vol.10 No.2
The purposes of this study were to investigate adsorption characteristics and economical valuation of activated carbon for water purification. This study considered removal characteristic organic matter such as KMn0_4 consumption, DOC, UV-254 and THMFP and manufacture cost were compared with different commercial activated carbons for water purification. At packed pilot plant, the result of compare with adsorption removal rate KMn0_4 consumption, DOC, UV-254 and THMFP based activated carbon is in case of KMn0_4 is expressed blend coal(51% ), bituminous coal(51% ), coal-based (53%), coconut- based (51%) and wood based activated carbon(38%) and in case of DOC is expressed blend coal(39%), bituminous coal(32%), coal-based(42%), coconut-based(36%) and wood based activated carbon(34%) and in case of UV-254 is expressed blend coal(53%), bituminous coal(47%), coal-based (54%), coconut-based (45%) and wood based activated carbon(38%) and THMFP adsorption removal rate is expressed blend coal(56%), bituminous coal(46%), coal-based (59%), coconut-based (55%) and wood based activated carbon(37%). Therefore, removal efficiencies of organic matteris superior to coal-based activated carbon. Moreover, used manufacture cost by anthracite and bituninous coal is ₩854,000/ton, it is possible to made ₩100,000/ton. consideration through 15% as corporation profit, finally, we can made activated carbon that have economical efficiency.
부레옥잠과 미나리를 이용한 연속식 하수처리에서 COD , N 및 P 의 제거
박진식(Jin Sick Park) 한국환경농학회 2002 한국환경농학회지 Vol.21 No.2
This study was carried out to investigate sewage treatment efficiencies using water hyacinth (Eichhornia crassipes) and watercress (Oenanthe javanica). In the hyacinth system, about 30% of COD introduced was removed during 2 days of hydraulic retention time, and about 30~50% of COD was removed in the watercress system during 1.2~2 days of hydraulic retention time. Therefore, COD loading of 76~170 kg COD/ha·day was removed during 2~3 days of hydraulic retention time at the 0.18 ㎡ area in the water hyacinth-watercress continuous system. Also 40~50% of N and P in the sewage were removed in the tested water hyacinth-watercress system. Although COD, N and P concentrations in the final effluent were still higher than the limits of waste discharge, applicability of this waste water treatment system should be further investigated as an alternative method for small scale sewage treatments.
장성호,박진식,Jang, Seong-Ho,Park, Jin-Sick 한국환경보건학회 2005 한국환경보건학회지 Vol.31 No.1
This study was conducted to identify the runoff characteristics of non-point source according to rainfall in Nam watershed. Land-uses of the Nam watershed were surveyed paddy field 4.5%, crop field 6.8%, mountainous 78.7%, urban 2.4%, and etc. 7.7%. Mean runoff coefficients in each area were observed Ⅰ area 0.08, Ⅱ area 0.08, and Ⅲ area 0.05. In the relationship between the rainfall and peak-flow, correlation coefficients(r) were investigated Ⅰ area -0.8609, Ⅱ area 0.6035, and Ⅲ area -0.4913. In the relationship between the antecedent dry period and first flow runoff, correlation coefficients(r) were investigated Ⅰ area -0.9093, Ⅱ area -0.1039, and Ⅲ area -0.7317. The discharge of pollutant concentrations relates to the flow rate of storm-water. In the relationship between the rainfall and watershed loading, exponent values of BOD, COD, SS, and T-N were estimated to 1.2751, 1.2003, 1.3744, and 1.1262, respectively.
장성호(Seong-Ho Jang),박진식(Jin-Sick Park),김수샘(Soo-Saeng Kim) 유기성자원학회 1998 유기물자원화 Vol.6 No.1
본 연구에서는 하수처리장에서 발생하는 하수슬러지의 부피를 감소시키기 위하여 감압건조법을 이용하여 반응압력,반응시간,반응온도에 따른 하수슬러지의 탈수효율을 조사하였다. 반응압력이 낮아질수록 슬러지의 함수율은 감소되는 경향을 보였으며,동일한 반응압력 및 반응온도에서는 반응시간야 걸어질수록 탈수효율이 상승하였고 반응온도에 따라서는 1200C 이상에서부터 슬러지의 탈수효과가 뛰어남을 알 수가 있었다. 결과적으로 하수슬러지를 감압건조법으로 처리할시에는 탈수효율이 기존의 탈수 방법보다 우수한 결과를 보임으로서 하수슬러지의 처리시 소요되는 비용을 절감할 수 있을 것으로 판단되며 슬러지뿐만이아니라 음식물쓰레기 등의 유기성폐기물에도 적용이 가능할 것으로 판단된다. This study was to experiment, through sewage sludge treatment by Vacuum Drying Method, variation of water content with reaction pressure, reaction time, reaction temperature. The result are as fol1ows; The water content decreased with the same reaction temperature and reaction time at lower pressure and 360-40 mmHg (a close vacuum) showed lower water content at low reaction temperature and short reaction time. The water content rapidly decreased with the same reaction pressure and time at low reaction temperature (above 120.C).
호기성 생물막을 이용한 크롬 함유 폐수처리에 관한 연구
장성호(Seong Ho Jang),박진식(Jin Sick Park) 한국수처리학회 1997 한국수처리학회지 Vol.5 No.4
This study has been carried out to provide the basic data when biofilm with activated carbon was used for Cr(VI)-containing wastewater treatment. The results from this study are follows; Cr(VI) removal efficiencies with dosage of Cr(VI) indicated below 40% when Cr(VI) dosage was over 10㎎/ℓ at A and B reactor, and over 20㎎/ℓ at C reactor, no relation with volume loading rate. COD removal efficiencies with dosage of Cr(VI) were changed when Cr(VI) dosage was 10㎎/ℓ in case of 1.6, 3.2㎏·COD/㎥·day at A reactor, was 20㎎/ℓ in case of 1.6, 3.2㎏·COD/㎥·day at B reactor, was 25㎎/ℓ in case of 1.6, 3.2㎏·COD/㎥·day at C reactor. NH₄^+-N removal efficiencies with dosage of Cr(VI) were changed when Cr(VI) dosage was 1㎎/ℓ, 10㎎/ℓ at A, B reactor, not related with volume loading rate, was 20㎎/ℓ in case of 3.2, 4.8㎏·COD/㎥·day at C reactor.
장성호 ( Seong Ho Jang ),박진식 ( Jin Sick Park ) 한국수처리학회 2004 한국수처리학회지 Vol.12 No.3
This study was conducted to identify the runoff characteristics of non-point source according to rainfall in Nam watershed. Land-uses of the Nam watershed were surveyed paddy field 9.1%, crop field 13.4%, mountainous 61.6%, urban 8.8%, and etc. 7.1%. Mean runoff coefficients in each area were observed Ⅰ area 0.06 and Ⅱ area 0.06. In the relationship between the rainfall, peak-flow, and correlation coefficients(r) were investigated Ⅰ area 0.7449, and Ⅱ area 0.7669. In the relationship between the antecedent dry period, first flow runoff, and correlation coefficients(r) were investigated Ⅰ area -0.4419 and Ⅱ area -0.2054. The discharge of pollutant concentrations relates the flow rate of storm-water. In the relationship between the rainfall, watershed loading, exponent values of BOD, COD, SS, T-N and T-P were estimated to 0.9743, 0.8947, 1.3964, 1.2797 and 1.5939, respectively.
타이타늄 스크랩 충진복극과 SUS316 전극을 이용한 수용성 절삭유의 처리
박인수 ( In-su Park ),김고은 ( Go-eun Kim ),장성호 ( Seong-ho Jang ),유시현 ( Si-hyeon Yu ),송영채 ( Young-chae Song ),류재용 ( Jae-yong Ryu ),박진식 ( Jin-sick Park ) 한국환경기술학회 2022 한국환경기술학회지 Vol.23 No.6
In this study, the Ti scraps were used as bipolar packed-bed electrodes with SUS316 electrodes for treatment of soluble cutting fluid(SCF). The removal efficiency of COD<sub>Cr</sub> from the SCF and oil and the Ti scraps were analysed in accordance with the Ti scrap density, current density, electrolyte type and concentration. The removal efficiency of COD<sub>Cr</sub> after 60 min was 58.4 %, 56.2 %, 63.3 % and 60.3 % for a scrap density of 0, 10, 20 and 30 g/L, while the removal efficiency for oil was 61.8 %, 67.6 % and 65.3 % for a scrap density of 10, 20 and 30 g/L. In addition, the removal efficiency of COD<sub>Cr</sub> after 60min was 63.3 %, 83.5 %, and 89.2 % and that of oil was 67.6 %, 79.8 % and 83.8 % for a current density 40, 60, and 80 A/m<sup>2</sup>. Finally, after testing the system with no electrolyte or with either Na<sub>2</sub>SO<sub>4</sub> or NaCl (5-10 mM), the highest removal efficiency of COD<sub>Cr</sub> a nd o il was 8 9.2 %, and 83.8 %, with no electrolyte and a current density of 80 A/m<sup>2</sup>. In conclusion, the removal of efficiency of COD<sub>Cr</sub> and o il was maximized with a scrap density o f 20 g /L, a current density o f 80 A/m2, and non-electrolyte.