http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
잔류유분 함유 반출처리토 재활용을 위한 호밀 식재 식물상 토성회복 가능성
박지은,배범한,주완호,배세달,배은주,Park, Jieun,Bae, Bumhan,Joo, Wanho,Bae, Seidal,Bae, Enjoo 한국지하수토양환경학회 2014 지하수토양환경 Vol.19 No.3
The amount of TPH contaminated soil treated at off-site remediation facilities is ever increasing. For the recycle of the treated-soil on farmlands, it is necessary to restore biological and physico-chemical soil characteristics and to remove residual TPH in the soil by an economic polishing treatment method such as phytoremediation. In this study, a series of experiments was performed to select suitable plant species and to devise a proper planting method for the phyto-restoration of TPH-treated soil. Rye (Secale cereale) was selected as test species through a germination test, among 5 other plants. Five 7-day-old rye seedlings were planted in a plastic pot, 20 cm in height and 15 cm in diameter. The pot was filled with TPH-treated soil (residual TPH of 1,118 mg/kg) up to 15 cm, and upper 5 cm was filled with horticulture soil to prevent TPH toxic effects and to act as root growth zone. The planted pot was cultivated in a greenhouse for 38 days along with the control that rye planted in a normal soil and the blank with no plants. After 38 days, the above-ground biomass of rye in the TPH-treated soil was 30.6% less than that in the control, however, the photosynthetic activity of the leaf remained equal on both treatments. Soil DHA (dehydrogenase activity) increased 186 times in the rye treatment compared to 10.8 times in the blank. The gross TPH removal (%) in the planted soil and the blank soil was 34.5% and 18.4%, respectively, resulting in 16.1% increase of net TPH removal. Promotion of microbial activity by root exudate, increase in soil permeability and air ventilation as well as direct uptake and degradation by planted rye may have contributed to the higher TPH removal rate. Therefore, planting rye on the TPH-treated soil with the root growth zone method showed both the potential of restoring biological soil properties and the possibility of residual TPH removal that may allow the recycle of the treated soil to farmlands.
성일종,박승일,양재규,배세달,김해금,최상일,Sung, Il-Jong,Pak, Seung-Il,Yang, Jae-Kyu,Bae, Se-Dal,Jin, Hai-Jin,Choi, Sang-Il 한국지하수토양환경학회 2014 지하수토양환경 Vol.19 No.3
In this study, generic characteristics of the acid mine drainage (AMD), removal efficiency of iron, aluminium and manganese by chemical treatment, electrolysis and hybrid process using electrolysis after neutralization were evaluated. The pH of AMD was inversely proportional to the rainfall. In dry-season, the average pH of AMD was ranged from 4.5 to 5.5, showing slight variation. However, the pH of AMD was gradually decreased along with rainfall and dropped to 3.02 in September showing the greatest rainfall. Removal efficiency of heavy metals by chemical treatments using three different neutralizing agents or by electrolysis was low. However, a hybrid process performed with electrolysis after addition of neutralization shows higher removal capacity for heavy metal ions than neutralization-alone and electrolysisalone process.
식물경작장에서의 중금속 고축적종 식물을 이용한 중금속 오염토의 정화 연구
박상헌,최상일,박종부,한하규,배세달,성일종,박응렬,Park, Sang-Hean,Choi, Sang-Il,Park, Jong-Bu,Han, Ha-Kyu,Bae, Sei-Dal,Sung, Il-Jong,Park, Eung-Ryeol 한국지하수토양환경학회 2011 지하수토양환경 Vol.16 No.5
This study was performed to evaluate the remediation efficiency by Helianthus annuus, Brassica juncea and Brassica campestris on the soil contaminated with nickel, zinc and lead, respectively. The growth rates fell down under 60% in the condition of over 700 mg/kg of zinc for Brassica campestris, 300 mg/kg of lead for Helianthus annuus, and 150 mg/kg of nickel for Brassica juncea on the basis of heavy metal concentration in the soil, because of its toxicity. Also, the hyperaccumulators showed the maximum heavy metal contents in their biomass after 90 days of cultivation. The accumulated heavy metal content per kilogram of hyperaccumulator was 0.65 mg of nickel in Brassica juncea, 0.14 mg of zinc in Brassica campestris, and 0.06 mg of lead in Helianthus annuus, respectively. Additionally, 73.2% of nickel accumulated in Brassica juncea and 95.1% of zinc accumulated in Brassica campestris were concentrated in the upper site of crop like stem and leaves. However, in the case of Helianthus annuus, 83.7% of lead was accumulated in the root.
확장형 이중패커를 이용한 지하수 공벽과 내부케이싱의구간차폐 그라우팅 기술에 대한 연구
조희남,최성욱,박종오,배세달,이병용,최상일 한국지하수토양환경학회 2019 지하수토양환경 Vol.24 No.1
In installation of groundwater wells, grouting materials are injected between the groundwater borehole and the innercasing in order to prevent infiltration of contaminated groundwater from the top soil layers into wells. The injection deviceof grouting materials is commonly composed of an inlet head device with an expansion packer, a cylinder capable ofstoring the grouting materials, and an air cylinder. In this work, two types of common grouting materials, silicon andcement materials, were tested for their performances as grouting media. For silicon. silicon was mixed with clay or calcite,and tested for their tensile strength and underwater reactivity. Both silicon-clay and silicon-calcite mixtures had adequateflow and adhesiveness. For cement material, general cement, ultra-rapid harding cement, and natural cement wererespectively mixed with three different soil types including coarse-grained granite, fine-grained granite, and gneiss, anddirect shearing tests were conducted after hardening. Under grouting depth condition of 30 m, the minimum adhesivestrength was greater for weathered gneiss than non-weathered gneiss with its maximum values obtained from the mixturesof ultra rapid-harding cement.
이용복(Yong Bok Lee),최상일(Sang Il Choi),정현규(Hyun Gyu Jung),배세달(Sei Dal Bae),정선국(Sun Kook Jung) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.6
To build environmentally friendly highways, we testes suitability for unique characteristics of pollution mitigation facility around the highways by evaluating optimal selections and implementation methodologies to minimize loan of non-point pollution substances into water-ways. To do this we categorized EIA target highways into three types ; big drainage basin, small drainage basin, and bridge section as to minimize non-point pollution of highway runoff. The terms of selected facility test based on the Natural and Manufactured Treatment Device were removal efficiency of TSS, BOD, COD, T-N, T-P, compatibility of site selection, economic feasibility, maintenance convenience, and the final mitigation facility.