육상 수조식양식장 배출수 처리특성

강봉래,허목 제주대학교 환경연구소 1996 환경연구논문집 : 제주대 Vol.4 No.-

The minimum temperature of the coastal \raters surrounding Cheju island, even winter time, is 14℃, the highest in Korea. The average, year round water temperature is approximately 16-18℃. Taking advantage of such natural conditions. inland aquaculture began in 1986 and, as of 1994. 96 farms were operating. The coastal environmental contamimation caused by the wadte water discharged farms has surfaced as an important issue. Accordingly. research into the application of biofilm filtration process to the treatment of water discharged from inland aquaculture has been undertaken and. as result o f examination o f the effects of varying operational factors. such as processing characteristics and headloss of major pollutants. such SS. COD and nutrient salts, the follon,ing conclusions have been reached: 1. The physical characteristics of the porous plastic media used in this research represented specific gravity, 0.59; roundness, 0.73: porosity. 75.0% permeability coefficient. 588cm/min; and specific surface area, 9.92×103m/㎥ and that this media was the most suitable to the biofilm filtration process, a s compared to sand or scoria media. 2. It has been verified through filtration characteristic comprison tests that plastic media offer the quickest times, and best SS and COD removal characteristics. 3. A pilot biofilm filtration system utilizing porous plastic and scoria media was installed in a inland aquaculture as a field experiment. This experiment demonstrated that at a filtration rate not exceeding 400m/day, major pollutants such as SS, COD and T-N were effectively and steadily removed and, in the case of headloss limit being 1.4m, continous filtration time was aproximately 13 days. 4. The field experiments showed no significant difference resulting from filtration rate variation with respec to the amounts of total SS and COD removed per unit filtration area during the effective filtration at different filtration rate. The tatal average amounts of SS and COD removed were calculated at 14.16kgSS/㎡ and 5.97kgCOD/m^(1), respectively.

장르담론의 비평적 재구성

강봉래 문학과영상학회 2019 문학과영상 Vol.20 No.2

This paper elucidates as to how we could read or re-read genres through genre discourses which are discussed until recently. For this problematic, I inquire into the two social-cultural approaches for genres, that is the ritual approach and the ideological approach. Firstly, what we could conceive from the ritual approach is that genre films are the site of conflict occurring contradiction and rupture, secondly, for the ideological approach, this position perceives genres as the site of class struggle conflicting competing ideologies. Genre films are the site of negotiation and feud between or against social discourses. This paper consider genres as the order of relation rather than the order of structure. Any one genre only really makes sense in terms of its relationship to other genres. Because genres exist across and between films rather than simply within films. Moreover, genres are by no means exclusively cinematic but rather they exist across various forms of popular culture. Genres could be activated through network traversing text, industry and subject. Genres are not isolated ideas but discourse in progress. This discourse mediate social practices. This paper suggests that we might consider genres as discourse, practice, process and relation.

생물막 여과법에 의한 양식장 배출수의 처리특성

강봉래,이용두,허목 대한환경공학회 1994 대한환경공학회 학술발표논문집 Vol.1994 No.12

제주도 지하수위 변화 특성 및 향후 관측망 운영 방안

강봉래(Kang, Bong Rae),이현아(Lee, Hyun A),김지명(Kim, Ji Myung),박원배(Park, Won Bae) 대한토목학회 2023 대한토목학회 학술대회 Vol.2023 No.10

이온교환수지에 의한 지하수중의 질산성질소의 제거

허목,강봉래,강경수 제주대학교 환경연구소 1995 환경연구논문집 : 제주대 Vol.3 No.1

In this research, We have studied and analysed new variable referenm about the removal method of nitrate in ground water using drinking water. That method using extra basic exchange resine was the most suitable to the removal of nitrate. As a result of this study, the following mclusions have been reached. 1. When a cancentration of nitrate ion and sulfate ion is similar, even though a general extra basic resine(exchange equvalent:1.3-1.4eq/ l -R) was used the exchange load showed is a little difference with respect to a nitrate selective resine. 2. In case of downflow regeneration method, a treatment water was stabbed at above 200gNaCl/l -R of regeneratin level. 3. When a resine level is 200gNaCl/l -R, tube fbw exchange equivalent was 995meq/l -R. 4. As a result of analysing a raw water which was 30mgNO_(3)/l by means of this ion exchange process the removal efficiency was more than 80 percent.

제주도 개인하수처리시설의 지하수 오염 위해성 평가

김미진,강봉래,박원배,김지명,양원석 한국환경과학회 2019 한국환경과학회 학술발표회 발표논문집 Vol.2019 No.11

제주지역 지하수 적정허가량의 합리적 산정방안

박원배,강봉래 제주학회 2019 濟州島硏究 Vol.51 No.-

Jeju has introduced a groundwater-intake permit system since 2007 in order to systematically manage the groundwater permission volume. As the end of the December 2016, the admitted groundwater permits amounted to 1,563 thousand ㎥/day, which reached 88% of Jeju’s total sustainable use of 1,768 ㎥/day. However, until recently, the estimation of proper groundwater permission was calculated according to situations such as the amount of sewage sludge generated at the development site or area. There are 2-3 times the difference in each place of business. In this study, we analyzed the groundwater usage data over 4 years from 2013 to 2016, to estimate proper groundwater permission volume in four major industries with the largest amount of groundwater use, golf courses, lodging industries, personal service industries and residential facilities. As a result, in this study, we have developed an equation for estimating the permissible volume of groundwater for golf courses, residential facilities, individual service industries such as bathrooms and lodging businesses. This equation can be used in granting permission for groundwater development, use, and extension. However, groundwater wells for public-waterworks and agriculture- are analyzed to operate more than 90% of the allowded amount when drought occurs. If a drought continues more than 3 months, it is expected that there will be a problem in the supply of water. Therefore, improvement of the water supply system should be made first. 제주도에서는 지하수 허가량을 체계적으로 관리하기 위해 2007년부터 지하수 취수 허가량 제도를 도입하여 운영하고 있다. 2016년 12월말 현재 지하수 허가량은 1,563천㎥/일으로 제주도 지하수 지속이용가능량 1,768천㎥/일의 88%에 이르고 있다. 그러나 최근까지 지하수 적정허가량 산정은 개발 사업장의 하수도 발생량 또는 면적 등 상황에 따라 산정하고 있어 사업장별로 2~3배의 차이가 발생하고 있는 실정이다. 본 연구에서는 지하수 적정관리를 위해 2013~2016년까지 4년간 지하수 이용량 검침 자료를 분석한 후, 지하수 이용량이 많은 주요 4개 업종인 골프장, 숙박업, 개인서비스업, 주거시설을 대상으로 지하수 적정허가량 산정방안을 제시하고자 수행하였다. 그 결과, 본 연구에서 개발된 골프장, 숙박업용, 목욕장 등 개인서비스업용, 주거시설용 지하수 허가량 추정식은 지하수 개발․이용허가 및 연장허가 시 활용할 수 있을 것으로 판단된다. 그러나 공공 지하수 관정인 상수도용과 농업용 지하수인 경우 가뭄이 발생할 경우 이용률이 허가량의 90% 이상 가동하고 있는 것으로 분석되고 있어, 3개월 이상의 가뭄이 발생할 경우 상수도 공급에 차질이 발생할 우려가 많을 것으로 예상되기 때문에 상수도 공급체계 개선이 우선적으로 이루어져야 할 것으로 사료된다.

제주도의 오염 방지 시공이 부실한 지하수 관정에 대한 구간 차폐 공법의 적용과 평가

김미진,강봉래,조희남,최성욱,양원석,박원배 한국지하수토양환경학회 2020 지하수토양환경 Vol.25 No.3

About 90% of groundwater wells in Jeju Island are reported to be under the threat of contamination by infiltration of thesurface pollutants. Most of those wells have improperly grouted annulus which is an empty space between the well andthe inner casing. As a remedy to this problem, some of the wells were re-grouted by filling the annulus with cementwithout lifting an inner casing. In order to evaluate whether this method is appropriate for the geological structure of JejuIsland, two wells (W1 and W2) were selected and this method was applied. The water holding capacity did not decreasewhile the nitrate levels decreased from 16.8 and 20.2 to 6.8 and 13.8 mg/L in W1 and W2, respectively. The higher nitratelevel in W2 is deemed to be influenced by the livestock farms located in the upper area of the well. In addition,transmissivity of the vedose zone was higher in W2 than W1, potentially facilitating the transport of nitrate to thegroundwater. The overall result of this study suggests re-grouting of wells for the purpose of protecting water quality ofgoundwater should take into account geological structure of vadose zone as well as appropriate source control of thecontaminants.

OB5) 제주지역 지하수 적정허가량의 합리적 산정방안

박원배,강봉래,김민철,김기표,박윤석 한국환경과학회 2018 한국환경과학회 학술발표회 발표논문집 Vol.2018 No.11

제주도의 용천수 분포와 용출유형에 관한 연구(Ⅰ) - 제주시 및 애월읍지역에 대하여

고기원,문영석,강봉래,송시태,박윤석 대한지질학회 1998 대한지질학회 학술대회 Vol.1998 No.