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수록범위 : 1권1호(2000)~21권4호(2020) |수록논문 수 : 1,071
한국환경기술학회지
21권4호(2020년 08월) 수록논문
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KCI등재

1고층건물 건설에 따른 주변지역 일조환경 영향평가

저자 : 이정인 ( Jeong-in Lee ) , 김도용 ( Do-yong Kim ) , 김재진 ( Jae-jin Kim )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 259-266 (8 pages)

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In this study, the effect of construction of high-rise buildings on sunshine environment in N-newtown was predicted and analyzed by using a sunshine duration model. Three-dimensional topography and buildings in the target area were numerically constructed, based on the geographic information system(GIS) data. The azimuth and altitude angles of the sun for the target area on spring equinox, summer solstice, autumn equinox and winter solstice in 2019 were calculated as the root mean square errors(RMSE) below 0.4°, compared with the data provided by Korea astronomy and space science institute(KASI). The shadow length formed by the construction of new buildings was predicted as 205 m ~ 270 m(about three times of the building height) for the lower altitude angles of the sun. The gross shadow area for the target area on winter solstice was estimated as the increase rate of 17.5 % by the construction of new buildings. For the apartment complex located adjacent to the north-northwest side of the construction site of new buildings, the gross shadow area on winter solstice was estimated as the increase rate of 87.6 %(intensive damage) by the construction of new buildings. The results indicated that the assessment of sunshine environment should be necessary for new construction of high-rise buildings.

KCI등재

2하수처리 방류수 처리 시 파일럿 규모 생물막 공법의 수리학적 체류시간 및 반송비의 영향

저자 : 김재윤 ( Jae-yoon Kim ) , 이채영 ( Chae-young Lee )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 267-274 (8 pages)

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This study was intended to investigate the effect of hydraulic retention time and the recycle ratio on the performance of the biofilter process for treating secondary sedimentation basin effluent. The biofilter process consist of an upflow anoxic reactor and two downflow oxic reactors. And operating conditions of biofiter process was that the hydraulic retention time decreased from 3.0 hr to 0.7 hr. BOD and TN removal rates achieved 87.7 % and 59.0 % at HRT 3.0 hr. According to decrease HRT 0.7 hr, BOD and TN removal rates were decreased as 84.9 % and 50.6 %. The performance of the biofilm process was also evaluated at different recycle ratios such as 50 %, 100 % and 150 %. At a recycle ratio of 150 %, the maximum removal rate of BOD and TN were 89.9 % and 73.4 %, respectively and concentrations of BOD and TN were less than 3.5 mg/L in effluent of biofilm process. And studying the removal characteristics of hydraulic retention time and distance because the biofilter process is plug flow reator. The organics removal and denitrification efficiency was highest at inlet(0.8 m ~ 1.5 m) of the anoxic reactor. In oxic reator, residual organics were removed at inlet(2.2 m ~ 2.9 m) and nitrification efficiency was active at middle section(1.5 m ~ 2.2 m). The results demonstrated that the biofilm process could treat low strength domestic wastewater effluent effectively at a short HRT. Furthermore, the recycle ratio had significant effect on the performance of the biofilm process.

KCI등재

3악취배출시설주변 지역주민의 인식조사와 해결방안 연구

저자 : 연익준 ( Ik-jun Yeon ) , 박성식 ( Sung-sik Park ) , 김유정 ( Yu-jeong Kim ) , 정지선 ( Ji-sun Jung )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 275-281 (7 pages)

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This study researched the odor influence of the areas where most of cement factories and lime manufacturing facilities were located. This study investigated the solutions for odor complaints by analyzing statistically the perception of odor based on a survey for residents around the areas. Specifically, the less they perceived odor, the more they trust either an odor measurement institute or a current law/policy regarding odor. On the other hands, the more sensitive to odor they became with the more experience and damage perception they have. This is because, being exposed to various environmental contamination such as water, soil and atmosphere, the residents were motivated to get concerned about environmental damage due to odor contamination. Such phenomenon confirmed that they perceived odor much less than expected through the processes in which environmental and administrative authorities made their endeavor to decrease odor generated by odor-emission facilities for local residents'public welfare.

KCI등재

4섬진강에서 다슬기의 서식과 수질환경의 상호 연관성 연구

저자 : 박상진 ( Sang-jin Park ) , 이재희 ( Jae-hui Lee ) , 임미라 ( Mi-ra Lim ) , 공병욱 ( Byeong-wook Kong ) , 이영식 ( Young-sik Lee ) , 라덕관 ( Deoggwan Ra ) , 정정조 ( Cheong-jo Cheong )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 282-289 (8 pages)

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The purpose of this study is to interrelate between inhabitation of Semisulcospira and water quality in the Seomjin river. We investigated the characteristics of water quality, Semisulcospira population status and correlation analysis at 22 sites from October 17, 2018 to October 19, 2018. The four species of Semisulcospira forticosta, Semisulcospira libertina, Semisulcospira coreana and Semisulcospira tegulata were present in the Seomjin river. The predominant species of sampling site were Semisulcospira coreana of 15 pieces/m2 at St. 16, Semisulcospira forticosta of 16 pieces/m2 at St 17. The population was 6 pieces/m2 at upper, 2 pieces/m2 at middle, and 12 pieces/m2 at lower, respectively. The frequency of emergence showed 51 % and 45 % of the Semisulcospira coreana in the upper and middle regions. The lower regions showed 44 % of Semisulcospira coreana and 35% of Semisulcospira forticosta. The organic concentration(BOD) was found to be very low at 0.90 mg/L. As a result of evaluation of water quality standard of Sumjin river was surveyed as 'Ⅰa' grade. The Pearson's correlation coefficient between Semisulcospira and investigating item was analyzed based on surveying items and water quality. It was found that the velocity was high and the SS concentration was low at the sampling point where the riverbed was formed on the boulder. In this case, It is estimated that the number of Semisulcospira population relatively appeared to be high compared to other sampling points where algae growth of the attached materials were present.

KCI등재

5광양만권 오존농도 특성 조사 (순천지역을 중심으로)

저자 : 박혜영 ( Hye-young Park ) , 박현수 ( Hyun-su Park ) , 김학림 ( Hak-rim Kim ) , 오길영 ( Gil-young Oh ) , 임항선 ( Hang-sun Lim ) , 이해훈 ( Hae-hun Lee ) , 박종수 ( Jong-su Park )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 290-298 (9 pages)

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This study investigates distribution of highly concentrated ozone generation for the last 5 years(2015~2019). To analyze the air flow and weather relation when highly concentrated ozone generated, the air current pattern was analyzed by using HYSPLIT model of National Center for Atmospheric Research, US. After HYSPLIT analysis, the characteristics of Case 1 ~ 4 were analyzed according to the travel distance. Case 3, 4 showed the most influence on generating highly concentrated ozone; it showed short travel distance. Also for Suncheon in Gwangyang-Bay area, the cause of considerable frequency and lasting time of YH and SD monitoring sites was analyzed. The total accumulated time of high ozone concentration 242 hours at YH site and 179 hours at SD site. The characteristics of the monitoring sites were analyzed by analyzing the correlation among ozone concentration, meteorological data and air pollutants. YH monitoring site showed the lowest wind speed and high correlation of Insolation. SD monitoring site showed considerably strong correlation of fine dust and ultrafine dust. Also the locations of the two sites are in leeward of the industrial complex area, therefore ozone can easily be generated and the wind speed is low, which can cause atmospheric congestion and generate highly concentrated ozone for a long time.

KCI등재

6열분해반응기 이젝터 적용에 따른 열유동 및 입자 거동 특성

저자 : 송형운 ( Hyoungwoon Song ) , 윤종혁 ( Jonghyuk Yoon ) , 정희숙 ( Hee Suk Jung )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 299-306 (8 pages)

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In this study, a numerical study is performed on the thermal flow characteristics of a pyrolysis reactor to which an ejector was applied that enables heat recovery through internal gas recirculation. Depending on the ejector figure, the recirculation rate of the high temperature internal gas in the reactor is increased upto a maximum of 6.49 %, and the heat recovery rate is improved upto 14.7 %. In addition, a high-temperature internal gas circulation rate of 3.39 % is observed in a small-scale model based on the similitude theory. Among the silicon dioxide particles introduced into the small-scale reactor, the maximum particle diameter released through the outlet was numerically measured to be 78 ㎛, and about 40 % of the silicon dioxide particles were collected from the internal recirculation path at the bottom of reactor.

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7목포시 음식물류폐기물의 질적 특성 및 바이오가스화 잠재량 평가

저자 : 김대기 ( Daegi Kim ) , 김도용 ( Do-yong Kim )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 307-312 (6 pages)

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In this study, the characteristics and biogas production potential were analyzed and estimated for the food wastes in Mokpo city. The physical composition ratios of the food wastes were 93.6±3.5 % for foods, 1.6±0.9 % for vinyls, 0.6±0.4 % for metals and 4.2±2.7 % for the others. The total apparent density was 0.8297±0.0283 ton/m3(Metals > Foods > Others > Vinyls). The composition ratios of water, VS and FS were 79.8±1.2 %, 12.8±0.8 % and 7.4±0.5 %, respectively. The food waste was acidic with pH 4.6±0.3. Cl and SS concentrations were represented as 3,513±462 mg/L and 46,856±6,562 mg/L, respectively. The oxygen demand was 152,917±4,999 mg/L for BOD and 224,000±7,720 mg/L for COD. T-N and T-P concentrations were 4,402±811 mg/L and 713±65 mg/L, respectively. The results of organic content as COD were predictable the methane production potential which was 90±3 L-CH4/L-Food waste.

KCI등재

8해역오염방지를 위한 현행 평가제도의 개선방안

저자 : 이승원 ( Seung-won Lee )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 4호 발행 연도 : 2020 페이지 : pp. 313-318 (6 pages)

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The problems identified in this study are as follows. The first solution to these problems is to build an information support system for marine environmental impact assessment. This will enable us to share and accumulate the necessary information for the review of the assessment and to utilize it in connection with the sea area utilization conference. Thus, the assessment period and preparation cost for the marine environmental impact assessment agent can be reduced, and this will lead to a high-quality evaluation report. The second measure for improvement is to establish a reasonable and continuous system that can increase the role of the center for marine environmental impact assessment. This will enable the establishment of a support system for marine environmental impact assessment and accumulation of data related to the review and consultation of the marine environmental impact assessment. The first proposal is to improve the general criteria for the overlapping of the technical personnel of the environmental impact assessment agent and the marine environmental impact assessment agent in order to improve the conditions of industries related to the marine environmental impact assessment system and to secure professional technical personnel. This study suggests that if a person is registered as technical personnel of an environmental impact assessment agent, and the person meets the criteria for registration of technical personnel of the marine environmental impact assessment agent while working for the same company, the duplicate registration should be granted. As duplicate registration is possible, more skilled technical personnel will be available and this will improve the function of the sea area utilization conference system. The second plan for improvement is to separate the contracts related to the establishment and implementation of plans or projects that are subject to the marine environmental impact assessment in the event that the marine environmental impact assessment report is to be drawn up by an agent. This will ensure the objectivity of the marine environmental impact assessment report in the preparation of the assessment report and prevent the possibility of poor report. The proposals made in this study probably will not have a significant impact on the effectiveness of the marine environmental impact assessment system, but they may help to create more specific and systemized legal systems and methods.

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1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

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(2006)홍길동심리학41회 피인용

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(2006)홍길동41회 피인용

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