토양 중 산성백토 와 고령토가 제초제의 흡착에 미치는 영향

허동균,김환기 한국폐기물자원순환학회 2001 한국폐기물자원순환학회 학술대회 Vol.2001 No.1

2001년도 추계학술연구발표회 논문집 : 토양 중 산성백토 와 고령토가 제초제의 흡착에 미치는 영향

허동균,김환기 한국폐기물자원순환학회(구 한국폐기물학회) 2001 한국폐기물자원순환학회 추계학술발표논문집 Vol.2001 No.-

토양 중 산성백토와 고령토가 제초제의 흡착에 미치는 영향

허동균,김환기 한국폐기물자원순환학회 2001 한국폐기물자원순환학회지 Vol.18 No.5

토양중 Montmorillonite와 Kaolinite가 Paraquat의 흡착에 미치는 영향

허동균 ( Her Dong-gyun ),김환기 ( Kim Hwan-gi ) 한국환경기술학회 2000 한국환경기술학회지 Vol.1 No.2

토양중 montmorillonite와 kaolinite가 paraquat의 흡착에 미치는 영향을 파악하기 위해서, 회분식 흡착실험을 수행하였다. Paraquat가 montmorillonite와 kaolinite를 첨가한 토양에 대하여 평형흡착에 도달하기 위한 진탕시간은 약 1시간으로 나타났으며, montmorillonite를 첨가한 토양이 Kaolinite를 첨가한 토양보다 paraquat의 흡착량이 많게 나타났다. Paraquat의 흡착량은 montmorillonite의 경우 첨가량이 증가할수록 증가하였으나 kaolinite의 경우 첨가량이 증가할수록 감소하였다. Montmorillonite와 kaolinite를 첨가한 토양에 대한 흡착특성은 Freundlich 흡착등온식에 적합하였다. 토양의 온도변화가 paraquat의 흡착량에는 영향을 미치지 않았다. This study was to investigate the adsorption of paraquat by montmorillonite and kaolinite Clay minerals. In order to find out the adsorption characteristics of paraquat in soils, batch test was performed with various of shaking time and temperature in soils. The shaking time to reach the adsorption equilibrium of paraquat was 1 hour. Amount of paraquat adsorbed in montmorillonite shows higher then kaolinite. The more added amount of montmorillonite is put, the more adsorbed amount of paraquat is increased. But the more added amount of kaolinite is put, the more adsorbed amount of paraquat is decreased. Freundlich isotherm was the best fit the adsorption of paraquat in montmorillonite and kaolinite. The adsorption of paraquat in soils varies little with temperature variation.

매립지 침출수의 색도제거

정용태,허동균 順天靑巖大學 1999 論文集-順天靑巖大學 Vol.23 No.-

응집침전법을 이용하여 침출수중의 색도제거 가능성에 대하여 검토하고, 응집반응시 색도와 유기물 제거를 위한 적합한 조건들을 규명하고자, 응집제의 종류 및 첨가량, 침출수의 농도, pH 등을 변화시키면서 색도제거 실험을 수행하였다. 무기응집제의 경우, Al_2(SO_4)_3가 FeCl_3나 PAC에 비하여 색도제거율이 가장 좋게 나타났으며, 고분자 응집제의 경우, C-486이 N-100PWG나 A-110PWG에 비하여 제거율이 좋게 나타났다. COD 제거율은 Al_2(SO_4)_3의 경우 첨가량 600 mg/l에서 44%를 나타냈고, C-486의 경우 첨가량 100 mg/l에서 47%의 제거율을 나타냈다. 본 실험에 있어서 색도제거를 위한 최적 조건을 살펴 보면, Al_2(SO_4)_3의 경우에는 pH 6, 원수색도 400 cm, 첨가량 600 mg/l이었으며, C-486의 경우에는 pH 8, 원수색도 400 cu, 첨가량 100 mg/l이었다. 이때 색도제거율은 각각 86% 및 78%이었다. This study was carried out to research the colour removal efficiency of landfill leachate by coagulation. In order to find out optimal conditions for colour removal, influential factors such as sort and dosage of coagulant, concentration of leachate, and pH were investigated with experiments. As for coagulant, Al_2(SO_4)_3 showed the highest colour removal efficiency compared with FeCl_3 or PAC. As for polymer, C-486 has the highest colour removal efficiency compared with N-100PWG or A-100PWG. When the dosage of Al_2(SO_4)_3 was 600 mg/l, the COD removal efficiency was 44%. When the dosage of C-486 was 100 mg/l, the COD removal efficiency was 47%. The optimal conditions achieved for the colour removal are as follows: the colour removal efficiency of Al_2(SO_4)_3 is 86% with a dosage of 600 mg/l at pH 6 and 400 cu, and that of C-486 is 78% with a dosage of 100 mg/l at pH 8 and 400 cu.

埋立地 浸出水의 凝集處理

羅德寬,許東均 순천대학교 공업기술연구소 1997 工業技術硏究所論文集 Vol.11 No.-

This study was carried out to research on the colour and organic removal efficiency of landfill leachate by coagulation. In order to find out optimal conditions for the colour and organic removal efficiency. control factors such as sort and dosage of coagulant, concentration of leachate, and pH were investgated with experiments. 1) The colloid charge was measured by the colloid titration method. As for coagulatn used, Al_2(SO_4)_3 and C-486 had the least quantity of dosage at an isoelectric point. Cationic coagulants are very efficient because the constituents of colour in landfill leachate consist of colloids which are hydrophilic and negative charge. 2) The colour removal efficiency of Al_2(SO_4)_3 was the higher than that of FeCL_3. and, C-486 was the higher colour removal efficiency compared with A-110PWG. 3) Al_2(SO_4)_3 showed the best colour removal efficiency within the range of pH5 to 7. And, C-486 showed the best colour removal efficiency within the range of pH 7 to 9. 4)When the dosage of Al_2(SO_4)_3 was 600mg/ℓ, the COD removal efficiency was 44%. And, When the dosage of C- 486 was 100mg/ℓ, the COD removal efficiency was 47%. 5) The optimal condition achieved for colour and organic removal was as follows: the colour and organic removal efficiency of Al_2(SO_4)_3 was 86 % and 44% with a dosage of 600mg/ℓ at pH 6 and colour concentration of 400, and that of C-486 was 78% and 47% with a dosage of 100mg/ℓ at pH 8, respectively.

탐진강 수계의 이화학적 수질특성

라덕관,김기성,허동균 순천대학교 기초과학연구소 1997 基礎科學硏究誌 Vol.8 No.-

In order to investigate the physicochemical water quality in Tamjin river basin, water quality analysis was undertaken at 7 sites from Marc 1996 to Feb. 1977. Water temperature was ranged from 4.0 to 32.0 ℃ and pH varied from 6.7 to 8.5. The concentration of BOD, SS, T-N, and T-P were 0.4∼2.2㎎/ℓ, 1.0∼12.0㎎/ℓ, 0.234∼2.681㎎/ℓ, and 0.003∼0.067㎎/ℓ, respectively. Heavy metals and phenol were not detected in sampling sites. In Tamjin river basin, annual average pollution loads in ton/year were estimated to be 167.12 of BOD, 348.24 of SS, 137.51 of T-N, and 3.49 of T-P.

섬진강수계의 이화학적 수질특성

라덕관,김유봉,허동균 순천대학교 공업기술연구소 1997 工業技術硏究所論文集 Vol.11 No.-

In order to investigate the physicochemical water quality in Seomjin river basin, water quality analysis was undertaken at 11 sites in the main river and side stream from March 1996 to Fab. 1997. The concentration of BOD, SS, DO, T-N, T-P, and E. coli were 0.4~2.6mg/ℓ, 1.0~24.5mg/ℓ, 6.0~13.8mg/ℓ, 0.218~2.928mg/ℓ, 0.002~0.098mg/ℓ, and 15~500MPN/100㎖, respectively. Heavy metals were not detected in sampling sites. The lower parts of Yo-cheon is the most polluted stream among the main river and side stream in Seomjin river basin. In Seomjin river basin, annual average pollution loads in ton/year were estimated to be 1,660.32 of BOD, 6,151.86 of SS, 1,421.80 of T-N, and 28.91 of T-P. It was found that Seomjin river basin was not polluted to any troublesome level for water supply, industrial, irrigation and fishery purposes.

가압부상법에 의한 도살장 폐수의 유지분 제거

라덕관,김유봉,허동균,김영규 순천대학교 기초과학연구소 1997 基礎科學硏究誌 Vol.8 No.-

The presence of grease and oil(G&O) in the influent wastes to wastewater treatment facility is one of the most serious problems affecting treatment efficiency. If the slaughterhouse wastewater is contained to G&O, pretreatment is required for G&O removal in wastewater treatment. The dissolved air flotation(DAF) has been shown to be efficient process for G&O removal in the pretreatment process. In order to study the optimal operation conditions for G&O removal, the control factors such as type and concentration of coagulant, ratio of pressurized water flow, and pressure are investigated by bench-scale reactor experiment of DAF. The G&O, COD and TOC removal efficiency of FeCl_3 were the higher than those of Al_2(SO_4)_3. The ratio of pressurized water flow was above 0.4 to take 90% or more removal efficiency of G&O. The best operation conditions obtained were 450㎎/l of FeCl_3 dosage, 0.43 of pressurized water flow and 4㎏/㎠ of pressure. The removal efficiency of G&O, COD, TOC and SS in these conditions were 90%, 76%, 80% and 76%.

토양중 Montmorillonite와 Kaolinite가 Paraquat와 2,4-D의 흡착에 미치는 영향

김영규 ( Young-kyu Kim ),허동균 ( Dong-gyun Her ),김성진 ( Sung-jin Kim ),이미경 ( Mi-gyeong Lee ),라덕관 ( Deog-gwan Ra ) 한국환경기술학회 2004 한국환경기술학회지 Vol.5 No.4

토양중 montmorillonite와 kaolinite가 제초제의 흡착에 미치는 영향을 파악하고자 진탕시간, 농약의 농도, 토양 온도, 토양 pH 등을 변화시키면서 실험을 수행하였다. Paraquat 및 2,4-D가 montmorillonite와 kaolinite를 첨가한 토양에 대하여 평형흡착에 도달되기 위한 진탕시간은 각각 1시간 및 48시간으로 나타났다. Montmorillonite와 kaolinite를 첨가한 토양에 대한 paraquat 및 2,4-D의 흡착량은 montmorillonite를 첨가한 경우가 kaolinite를 첨가한 경우보다 크게 나타났으며, paraquat 및 2,4-D의 흡착량은 montmorillonite의 첨가량이 많을수록 증가하였고, kaolinite의 첨가량이 많을수록 감소하는 경향을 나타냈다. 또한 paraquat 및 2,4-D 수용액의 농도가 증가할수록 흡착량도 증가하는 경향을 나타냈으며, montmorillonite를 첨가한 토양이 kaolinite를 첨가한 토양에 비하여 흡착량이 많았다. 여기서 이들 등온흡착식은 Langmuir식보다는 Freundlich식에 적합하였다. 토양 온도 변화에 따른 paraquat의 흡착율은 온도가 낮을수록 미소하게 감소하는 경향을 나타냈으며, 2,4-D의 경우는 온도가 낮을수록 증가하는 경향을 나타냈다. pH 변화에 따른 paraquat의 흡착은 pH가 증가할수록 약간 감소하였으며, pH 변화에 따른 2,4-D의 흡착은 거의 변화가 없는 것으로 나타났다. The influences of montmorillonite and kaolinite on adsorption of herbicides, paraquat and 2,4-D, were studied in batch model. It was appeared that shaking time of the paraquat to reach absorption equilibrium against soil which was containing montmorillonite and kaolinite was about 1 hour, and 2,4-D was 48 hours. And it became clear that the more the amount of adsorption of paraquat and 2,4-D increased, the more the amount of addition of montmorillonite increased. In case of kaolinite, the more the amount of adsorption of paraquat and 2,4-D increased, the more the amount of addition of kaolinite decreased. The characteristic of adsorption of herbicide against the soil which is containing montmorillonite and kaolinite was adjust to Freundlich isotherm, but Langmuir isotherm was not good to fit it. The adsorption of paraquat was decreased in low temperature, but 2,4-D was increased in low temperature, since water solubility of pesticides was related to the temperature. Finally the adsorption of paraquat was little decreased in high pH, but 2,4-D was little effected by variation of soils.