순천만 갯벌에서 분리한 균주 YUN4의 악취물질 분해능 평가

고준일,이재춘,이재영,오상근,정선용 한국냄새환경학회 2020 실내환경 및 냄새 학회지 Vol.19 No.2

This study was conducted to separate microorganisms with excellent odor component decomposition ability from nature. Microorganisms growing sulfur and ammonia compounds as substrates were isolated and identified in the tidal flat of Suncheon Bay. The strain YUN4 cultured on ammonia and sulfur compound substrates was found to have 100% genetic homology to Streptomyces fulvissimus. The optimum growth temperature of YUN4 was 20oC to 40oC, and the optimum pH was investigated in the range of pH 5 to pH 9. In addition, in order to evaluate the ability to reduce odor, after mixing the culture strain with each concentration of 1%, 5%, and 10% in the malodor generating sample, the efficiency of malodor reduction was evaluated after 30 minutes. As a result, the ammonia decomposition efficiency was 82.4%~93.9%, and hydrogen sulfide was 88.7%~94.9%.

LID 수목여과박스에 적용된 BRS (Bioretention soil)의 병원성 미생물 제거 특성

고준일,임형엽,김기중,정선용 대한환경공학회 2017 대한환경공학회 학술발표논문집 Vol.2017 No.11

수분조절제로 살포된 미생물 활성액이 퇴비발효공정의 악취발생에 미치는 영향에 관한 연구

고준일,정선용,박귀환,배주순,오길영 한국냄새환경학회 2015 실내환경 및 냄새 학회지 Vol.14 No.3

During the aerobic composting of livestock excrement, or leachate, which is generated in the composting process,is distributed through a bulking agent. In this research, a specific microorganism expected to reduce the emissionof odor was activated in livestock excrement supernatant, which is similar to the leachate used for water control. While the microorganism was being diffused, odor properties were examined. The bulking agent, in which thespecific microorganism was activated, was produced by applying a bioreactor filled with pumice and pellets tothe treatment process of livestock excrement activation sludge method. The dominant microorganisms werePseudomonas genera. Experiment results showed ammonia content was lowered as to 0.27 ppm 1n 15 days;however, it remained at levels of 3.15 ppm in the control reactor. After the composting time was completed, theammonia concentrations were 0.07 ppm and 3.43 ppm, respectively. The complex odor in the test reactor was28~30 times greater than of dilution, but was 42~45 times greater in the control reactor. Hydrogen sulfide andmethyl mercaptan were not detected in either reactors. Ammonia was thought to be the major odor-producingsource during the aerobic composting process of livestock excrement, and it was expected that the odor could bereduced by spraying a microorganism -activated solution as a bulking agent.

Sense of Virtual Community: a Conceptual Framework and Research Issues

고준,김영걸,Koh, Joon,Kim, Young-Gul 한국경영정보학회 2001 Information systems review Vol.3 No.2

Therapeutic effects of phytochemicals contained in fermented soybean products (Cheonggukjang) and gold-nanoparticles on neurodegenerative disorders

고준,김지은,곽문화,고은경,송성화,성지은,황대연 한국실험동물학회 2014 한국실험동물학회 학술발표대회 논문집 Vol.2014 No.8

생물반응기를 도입한 돈분뇨의 생물학적 처리공정에서 악취발생 특성 및 미생물동정에 관한 연구

고준일(Joon Il Ko),박귀환(Gui Hwan Park),배주순(Ju Soon Bae),오길영(Gil Young Oh),정선용(Seon Yong Chung) 大韓環境工學會 2015 대한환경공학회지 Vol.37 No.9

유기성폐수 처리공정에서 악취발생농도가 높을 것으로 예상되는 양돈분뇨 처리공정에 pellet과 stone을 충진한 생물반응기를 도입하고 대조시설로서 생물반응기를 도입하지 않는 활성슬러지법 공정과 비교하여 반응조 운전상태, 처리수질, 악취발생농도를 측정하였다. 거품발생, 처리수 투시도 등에서 생물반응기를 도입한 반응조가 훨씬 안정적인 모습을 보였으며 BOD 제거효율도 우수하였다. 반면, 총질소(T-N), 총인(T-P) 제거효율은 두 개의 반응조가 큰 차이를 보이지 않아 방류수수질기준을 만족시키기 위해서는 별도의 고도처리를 하여야 할 것으로 나타났다. 악취는 암모니아성 질소, 암모니아 농도, 복합악취를 기준으로 살펴본 결과 생물반응기를 도입한 공정이 활성슬러지 공정보다 적게는 4배에서 최대 24배 이상 낮게나타나 악취원인물질 발생이 적은 것으로 나타났다. 황화수소, 메틸머캅탄, 디메틸설파이드, 디메틸디설파이드 농도는 각각의 반응조 모두 검출되지 않거나 5 ppb에 불과하였으며 두 반응조의 차이 또한 크지 않는 것으로 나타났다. 생물반응기 공정에서는 주로 Bacillus sp./ Pseudomonas sp. 종이 주를 이루고 활성슬러지 공정에서는 Bacterium sp. Chryseobacterium sp. 종이주를 이루었다. A bioreactor filling with pellets and stones was equipped to the swine manure treatment system, which is expected to emit high concentration of odor in the process of the organic wastewater treatment system, and in comparison with the activated sludge process as the control process, the reactor operation state, treatment water quality and odor emission concentration were measured. The reactor using the bioreactor proved to be much more stable in the bubble condition, treatment water transparency, etc, and BOD removal efficiency was also much better. The removal efficiency of T-N and T-P, however, showed little difference in the two reactors. Odor, as a result of examining NH₃-N, NH₃ concentratio, and complex odor, was 4 times to 24 times less emitted in the system using bioreactor than in the activated sludge system. H₂S, methyl mercaptan, dimethyl sulfide, and dimethyl disulfide were not found or were found in only 5 ppbs in each reactor and showed little difference between the two reactors. In the bioreactor process, Bacillus sp./ Pseudomonas sp. species were mainly found and in the activated sludge process, acterium sp. Chryseobacterium sp. species were mainly found.

Therapeutic effects of fermented soybean products (Cheonggukjang) on trimethyltin-induced neurodegenerative disorders

고준,김지은,곽문화,고은경,송성화,성지은,김동섭,황대연 한국실험동물학회 2014 한국실험동물학회 학술발표대회 논문집 Vol.2014 No.8

지역사회 거주 뇌졸중환자의 수단적 일상생활동작과 자기 효능감이 보호자의 삶의 질에 미치는 영향

고준,이승희,이태관,정혜림,홍근호,홍기훈 대한지역사회작업치료학회 2015 대한지역사회작업치료학회지 Vol.5 No.1

목적 : 본 연구는 지역사회 거주중인 뇌졸중 환자를 대상으로 자기 효능감과 수단적일상생활동작의 정도로 자립 정도를 알아보고 이에 따른 보호자의 삶의 질을 파악해봄으로써 지역사회 거주 뇌졸중 환자와 보호 자간의 상관관계를 알아보고자 한다. 연구방법 : 2014년 5월 12일부터 2014년 5월 23일까지 총 2주간에 걸쳐 부산광역시에 위치한 3개 병원, 경 상남도 거제시 소재 2개 병원에 외래 치료중인 MMSE-K 24점 이상인 뇌졸중 환자 138명을 대상으로 설 문지(K-IADL, 자기효능감 측정도구, WHOQOL-BREF)를 이용해 자료를 수집하였으며 총 125부를 최종 적으로 분석 하였다. 결과 : 125명의 환자 중 남자는 70명, 여자는 55명이었으며 평균연령은 58.72세(16세∼82세)이었다, 대상자는 일반적 자기 효능감(p<0.01), 구체적 자기 효능감(p<0.01)과 보호자의 삶의 질 사이에서 유의한 상관관계 를 나타내었고 수단적 일상생활 동작과 보호자의 삶의 질 사이에는 유의한 상관관계가 나타나지 않았다. 결론 : 일반적 자기효능감과 구체적 자기효능감이 보호자의 삶의 질과 상관관계를 보였으며, 일반적 특성 중 경제상황 요인이 보호자의 삶의 질과 연관이 있는 것으로 나타났다. 결론적으로 뇌졸중 환자의 자기 효능감이 높을수록 보호자의 삶의 질도 높아지며 경제상황이 좋을수록 보호자의 삶의 질도 높게 나타났 다. 그러나 뇌졸중 환자의 수단적 일상생활동작 정도와 보호자의 삶의 질과의 상관관계는 나타나지 않았 다. 외래 치료중인 환자의 상황이 점점 만성화 되어 가고 있는 추세로 볼 때 현재 자신의 상태에 만족하 지 않고 좀 더 발전 할 수 있는 자기 효능감 회복에 대한 치료적 계획이 수립되어져야 할 것이다. Objective : This study is aimed to examine the degree of independence in stroke patients residing in a community based on their self-efficacy and Instrumental Activities of Daily Living and also correlation between community-residing stroke patients and their guardians by figuring out the life quality of their guardians. Methods : For total two weeks between May 12th and 23rd, 2014, this researcher collected data by using a survey (K-IADL, a scale to measure self-efficacy, WHOQOL-BREF) targeting 138 stroke patients who received over 24 points in MMSE-K among the outpatients of three hospitals located in Busan Metropolitan City and two hospitals located in Geoje-si, Gyeongsangnam-do, and total 125 sheets were finally used for analysis. Results : Among the 125 patients, 70 were males, and 55 were females, and their average age was 58.72 (16 to 82). The subjects’ general self-efficacy (p<0.01) and detailed self-efficacy (p<0.01) indicated significant correlation with their guardian’s life quality, and there was no significant correlation found between their Instrumental Activities of Daily Living and their guardian’s life quality. Conclusion : Their general self-efficacy and detailed self-efficacy indicated correlation with their guardian’s life quality, and among their general characteristics, the factor of their financial situation indicated correlation with their guardian’s life quality. In conclusion, when stroke patients’ self-efficacy is higher, their guardian’s life quality increases, too, and if their financial situation is more favorable, their guardian’s life quality gets higher. However, stroke patients’ Instrumental Activities of Daily Living did not indicate correlation with their guardian’s life quality. When looking at the chronic trend of outpatients, therapeutical plan must be established about the self-efficient recovery for the development of those who are not satisfied.

온라인 커뮤니티에서 자기표현욕구가 디지털 아이템 구매의도에 미치는 영향

고준,신선진 한국정보기술응용학회 2007 한국정보기술응용학회학술대회 Vol.2007 No.1

무등산 계곡수 유입을 통한 광주천 수질 개선 방안에 관한 연구

고준일(Joon-IL Ko),정선용(Seon-Yong Chung) 한국습지학회 2021 한국습지학회지 Vol.23 No.3

무등산에서 발원하여 광주천으로 유입되던 수많은 계곡수가 합류식 하수관거로 유입되면서 광주천의 건천화와 수질 악화가 심화되었다. 본 연구는 하수처리장으로 유입되는 광주천 유역의 무등산 계곡수를 수원으로 활용하여 실개천을 조성하는 방안에 대해 연구하였다. 먼저, 100 m3/일 이상의 유량을 보이는 4개 지점의 유량 및 수질 조사 결과 지점별로105~2,721 m3/일의 유량을 나타냈으며, 평균 수질은 BOD5 0.3~1.6 mg/L로 나타났다. 만약, 갈수기 유량 1,500 m3/ 일의 실개천을 조성한 후 광주천 남광교 지점으로 유입시킨다면, BOD 7.3%, COD 6.5%, T-P 5.8%, T-N 5.2%의개선 효과가 있을 것으로 예측되었다. 또한, 계곡수 유입에 의한 하수처리장 유량 부하 부담이 줄어들고, 하수처리 비용이 절감되며, 도심 속 수변 amenity 창출에 의한 Blue-Green-Network (BGN) 구축의 토대가 될 것으로 판단되었다. Numerous valley waters originating from Mt. Mudeung and flowing into Gwangju Cheon flowed into the confluence-type sewage conduit, the Gwangju Cheon became dry and water quality deteriorated. In this study, a method to create a stream was studied by using the valley water of Mt. Mudeung in the Gwangju cheon that flows into the sewage treatment plant as a water source. Flow and water quality surveys were investigated at four points with meaningful flow quantity. As a result, it showed a flow quantity was 105~2,721 m3/day at each point. And the average water quality was BOD5 0.3~1.6 mg/L. If a stream with a flow quantity of 1,500 m3/day is created during the dry season and then flows into the Namgwang bridge of Gwangju cheon, it is predicted that there will be improvements in BOD 7.3%, COD 6.5%, T-P 5.8%, and T-N 5.2%. In addition, it was determined that the load on the flow quantity of the sewage treatment plant due to the inflow of valley water would be reduced, the cost of sewage treatment would be reduced, and it would be the basis for BGN construction by creating waterside amenity in the city.