• Title/Summary/Keyword: 재활용수

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Estimating the Benefit of the Desalination using the Contingent Valuation Method (조건부가치평가법을 이용한 해수담수화 가치 추정 연구)

  • Choi, Hanju;Ryu, Mun-Hyun;Jang, Seokwon;Park, Imsu
    • Proceedings of the Korea Water Resources Association Conference
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    • 2016.05a
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    • pp.130-130
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    • 2016
  • 물 부족 대응을 위한 대체 수자원으로 해수담수화 및 재활용수에 대한 개발이 급격히 증가하고 있다. 2030년까지 담수화 및 재활용수에 의한 물 공급이 약 300% 이상 증가할 것으로 GWI는 전망한 바 있다. 우리나라도 최근 충남 서부권 지역에 심각한 가뭄을 겪으면서 대체수자원으로 해수 담수화 개발에 대하여 본격적으로 논의가 이루어지고 있다. 해수담수화의 편익을 산정하기 위하여 2015년 12월 가뭄을 겪고 있는 충남서부권 8개 지역의 가구를 대상으로 조건부가치평가법을 이용하여 해수담수화 사업을 추진하는데 소요되는 비용과 이를 통하여 생기게 될 경제적 상황을 설명하고 응답자들에게 기꺼이 추가적으로 지불하고자 하는 금액에 대해 조사 및 추정하였다.

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Development of customized and energy-saving process for wastewater reuse utilizing UF/NF membrane (UF/NF 분리막을 활용한 수요자 맞춤형 / 에너지 절약형 재이용수 공정기술 개발)

  • Hong, Min;Hwang, Hyun-Seob;Park, Ock-Kwon;Kim, Yong-Lim
    • Proceedings of the Korea Water Resources Association Conference
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    • 2012.05a
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    • pp.712-712
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    • 2012
  • 하 폐수 처리방류수를 물리적, 화학적 그리고 생물학적 기술을 이용하여 처리한 후 재활용수로 이용하고자 하는 새로운 노력들이 진행되고 있지만 국내의 경우 방류수 재활용 기술과 처리수의 재이용에 대한 평가기술이 선진국에 비해 초기 단계에 있어 이 분야에 대한 적극적인 기술개발이 요구된다. 막 분리 기술을 이용한 처리 수는 소독 등의 추가적인 처리 없이 살수용수나 수경용수로 이용이 가능하며, 잔류염소를 유지시킬 경우 화장실 세정용수로의 이용도 가능하며, 또한 후처리 기술을 조합하면 고급 공업용수 등으로 사용가능하므로 선진기술로서 수요조건에 맞게 전 후 처리를 조합한 수요자 맞춤형 재이용수 공정기술을 개발할 필요가 있다. 이에 효율적인 하 폐수 재이용을 이용하여 농업용수(축산 음용수, 첨단 수출원예용수, 첨단 농업용수, 농산업 클러스터 복합 곡물 용수), 원예용수(원예단지), 공업용수 등의 다양한 용도에 활용 가능한 수요자 맞춤형 모듈 및 공정 개발을 수행하였다. 개발된 공정은 AOP 및 막 세정 시스템을 이용한 새로운 공정으로, AOP 시스템은 전기 이온 모듈을 통해 OH 라디칼을 생성 및 염분 제거 효율을 극대화 하여 오염 물질을 산화시키는 공정이며, FDA 시스템은 탁도가 높은 원수가 과다 유입 될 경우 후단 여과 막의 부하를 줄이는 역할을 하며, 부유 물질을 여과 시킨다. 막 세정 시스템은 미세 입자를 구성된 기포를 이용하여 눈에 보이지 않는 곳 까지 세척하며, 살균 작용을 하며, 분리 막의 성능을 증대 시킨다. 이어 UF 분리 막 시스템은 원수의 미세불순물, 박테리아, 스케일 물질 등을 제거하며, NF 시스템을 통하여 미립자, 박테리아 유기 화합물 및 2가 염 제거를 하여 재이용수를 생산하는 공정을 개발하였다. 개발된 수요자 맞춤형 공정은 하수 재이용 기술의 이용 목적 및 수요자별로 맞춤형으로 운영이 가능하며, 개발된 세척 기술은 분리 막 세정 유지관리비 및 에너지를 저감 할 수 있으며, 현장 적용의 실증화 과정을 거쳐 공정 기술을 신뢰도를 향상하고, 보유 기술을 수요자 맞춤형으로 업그레이드함으로써 기술의 경쟁력 및 고품질의 하수 재이용 기술의 새로운 방향을 제시 할 수 있을 것으로 판단된다.

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An Epidemiological Investigation on an Outbreak of Shigellosis in a Special School for Handicapped in Yeongcheon-si and in a Rehabilitation Facility in Gyeongsan-si, Korea, 2008 (2008년 영천시 지적장애인 학교와 경산시 재활원에서 발생한 세균성이질에 관한 역학조사)

  • Lee, Hyun-Dong;Lee, Soon-Ok;Lim, Hyun-Sul
    • Journal of agricultural medicine and community health
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    • v.34 no.1
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    • pp.24-33
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    • 2009
  • Objectives: In September 2008, an outbreak of diarrhea occurred among students attending Y school in Yeongcheon-si. Shigella sonnei was cultured from some of the rectal swabs. An epidemiological investigation was carried out to determine the source of the infection and the mode of transmission of the shigellosis outbreak. Methods: The index case lived in the D rehabilitation facility in Gyeongsan-si and an additional epidemiological investigation was carried out there. The cases could not be questioned due to their mental handicaps. The teachers were interviewed instead. A patient case was defined as a resident with diarrhea more than one time a day from September 18 to September 26, 2008 or a resident with confirmed Shigella sonnei at the Y school or the D rehabilitation facility. Results: The attack rate was 1.2% (8 persons) among 659 persons in the Y school and D rehabilitation facility. Five persons were microbiologically confirmed to have the infection and three persons were diagnosed on the basis of symptoms. Shigella sonnei was cultured from five of the 659 rectal swabs. However, 80 environmental specimens including drinking water, preserved foods, and cooking utensils were negative. All eight patients were Y school students and had been living in group boarding and lodging. Six of them lived in the D rehabilitation facility and two lived in the dormitory at the Y school. Five cases showed pulsed-field gel electrophoresis patterns that were identical for Shigella sonnei. Conclusions: The results of this study showed that the infection source of the shigellosis outbreak, in the two places, were identical. It is likely that the infections initially spread from a teacher or volunteer and then among the students.

A Study on Consumer Preference for Plastic Toilet Seats with Selective Automatic Supply of Recycled Water (재활용수의 선택적 자동공급이 가능한 플라스틱류 양변기 소비자 선호도에 관한 연구)

  • Choi, Tae-Wol;Baeg, Jong-Ho;Bae, Sang-Mok
    • Industry Promotion Research
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    • v.5 no.1
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    • pp.13-20
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    • 2020
  • This study is about consumer preference of plastic toilets that can provide automatic supply of recycled water. First, the preference for plastic toilet seat design by gender and age group was preferred for gender type C and G for the sex. As the result of the chi-square test, the significance probability is .044 and the significance is P <.0 5. I could confirm that. Age, teens, 40 s, and 50 s or older prefer type C, 20 s and 30 s, but B type is not statistically significant. Second, the differences among the groups of preference for appearance design criteria according to general characteristics were all stable (stable appearance) in gender, age, region, education, and salary, but the chi-square test showed that they were not statistically significant. There was no difference between them. This study has implications for improving competitiveness and productivity by reducing the main production cost by commercializing toilets made of plastic materials.

Overflow Urinary Incontinence with Herniated Lumbar Disc Managed by Korean Medicine Therapy: A Case Report (요추 추간판 탈출증 환자의 일류성 요실금에 대한 한의 진료의 경과: 증례 보고)

  • Koo, Ji-Eun;Lee, Hee-Won;Kwon, Yong-Su;Yu, Jae-Eun;Bae, Jun-Hyo;Park, Ji-Won;Yoon, Joo-Young;Choi, Sung-Won;Kim, Ka-Hyun
    • Journal of Korean Medicine Rehabilitation
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    • v.31 no.3
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    • pp.125-131
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    • 2021
  • This study reports the effectiveness of Korean medicine therapy by improving symptoms in patients with herniated lumbar disc (HLD) diagnosed with chronic overflow urinary incontinence (OUI). The patient was treated with two types of herbal medicine and electroacupuncture for 10 days. We used diary of voiding and incontinence, Overactive Bladder Symptom Score (OABSS), Bristol Female Lower Urinary Tract Symptoms questionnaire (BFLUTS) and numeral rating scale (NRS) to assess the symptoms. After treatment, the number of nocturia decreased from 5 to 2.5. OABSS decreased from 9 to 2 and BFLUTS decreased from 95 to 87. The NRS of back pain decreased from 7 to 3. This study may suggest that Korean medicine therapy can be effective therapy for OUI with HLD.

A Rev iew of Bee Venom Acupuncture for Articular Diseases of Single Type Joint in the Journal of Korean Medicine (국내 임상연구 문헌고찰을 통한 단일 관절 질환의 봉약침요법 응용례 분석)

  • Kim, Hyo-Jun;Kim, Gook-Beom;Park, Joon;Kwon, Yong-Su;Yu, Jae-eun;Lee, Hee-Won;Bae, Jun-Hyo;Choi, Gyu-Cheol;Bae, Ji-Eun;Han, Su-Bin;Kim, Yang-Sun
    • Journal of Korean Medicine Rehabilitation
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    • v.31 no.1
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    • pp.119-135
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    • 2021
  • Objectives This review aims to analyze the current research trend in the usage of bee venom (BV) acupuncture for articular diseases of single type joint. Methods We collected 74 articles on BV acupuncture clinical study for articular diseases of single joint by searching Korean web databases 'Journal of Korean Medicine Rehabilitation', 'Oriental Medicine Advanced Searching Integrated System', 'Korean Traditional Knowledge Portal' from 1999 to 2020 August. Results We summarized the most frequent clinical treatment methods of BV acupuncture for articular diseases of single type joint. Research focused on specific diseases in application of BV acupuncture about some articular type diseases of single joint. It is assumed that the details of treatment for each joint are not related to the type of joint. In clinical study of BV acupuncture, reproducibility was mostly insufficient. Conclusions BV acupuncture clinical study for articular diseases of single joint should be proceed for a number of subjects, to treat various types of disease, by using more safe and detailed treatments.

A Study on Water Saving Washbowl System (세면기 재활용수를 이용한 수절약 및 환경오염 방지에 관한 연구)

  • Won, Jae-Young;Suh, Kee-Won;Lim, Ho-Sang
    • Proceedings of the SAREK Conference
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    • 2008.06a
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    • pp.511-516
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    • 2008
  • Based on this study, the remarkable water saving washbowl system (about 90% water saving) was designed and developed by reusing the face washed water. Once the used water for washing one's face was stored into a water tank, and the dirt substances and floating matters are effectively removed by the filtrating system in order to maintain the clean water tank for a toilet stool. By using this great washbowl system, the total consumption of tap water is dramatically decreased and the total expense for sewage disposal plants is efficiently saved.

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Korean Medicine Treatment to Posterior Cruciate Ligament Tear Patients Due to Traffic Accident: Report of 2 Cases (교통사고로 인한 후방십자인대 파열 환자에 대한 증례보고 2예)

  • Bae, Jun-Hyo;Kwon, Yong-Su;Yu, Jae-eun;Lee, Hee-won;Koo, Ji-eun;Kim, Ka-hyun;Choi, Sung-won;Yoon, Joo-young;Park, Ji-won
    • Journal of Korean Medicine Rehabilitation
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    • v.31 no.3
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    • pp.141-147
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    • 2021
  • This study's purpose is to report the effectiveness of Korean medicine treatment to posterior cruciate ligament tear patients due to traffic accident. 2 patients were treated with Korean medicine by acupuncture, pharmacopuncture and herbal medication. We assessed the knee pain and functional improvement by using numeric rating scale (NRS), Western Ontario and McMaster Universities arthritis (WOMAC) index and EuroQol-5 dimension (EQ-5D) index. After treatment, NRS decreased from 6 to 2 in case 1 and from 5 to 3 in case 2. EQ-5D index chaged from 0.465 to 0.72 in case 1 and from 0.719 to -0.171 in case 2. WOMAC index decreased from 82 to 13 in case 1 and from 55 to 54 in case 2. NRS improved in both cases, but WOMAC index and EQ-5D index improved in only one case. Korean medicine treatment could be helpful for posterior cruciate ligament tear traffic accident patients. However, further clinical studies are needed to clarify the effectiveness to the patients with old age, degeneration and accompanying injury.

The Statistics Study on Patients visiting a Korean Medicine Hospital according to the Application of Chuna Therapy Health Insurance and Medical benefits (추나요법의 건강보험 및 의료급여 적용에 따른 한방병원에 내원하는 환자군에 대한 통계적 고찰)

  • Kim, Hyo-jun;Byun, Da-Young;Kim, Gook-Beom;Park, Joon;Kwon, Yong-Su;Yu, Jae-Eun;Lee, Hee-Won;Oh, Min-Seok
    • The Journal of Korean Medicine
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    • v.40 no.3
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    • pp.188-197
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    • 2019
  • Objectives: The objective of this study is to analyze and observe what kinds of changes in Patients who visited a Korean Medicine Hospital according to the Application of Chuna Therapy Health Insurance and Medical benefits. Methods: In this study we collected data of Patients who first visited the ${\bigcirc}{\bigcirc}{\bigcirc}{\bigcirc}$ Korean Medicine Hospital from March 8 to May 8. we collected data of 1074 Patients who first visited the Daejeon Jaseng Korean Medicine Hospital from March 8 to May 8. Based on the medical charts, Computer order, we analyze and observe statistical data of 1074 patients putting them into six groups. Outcuomes: 1.The increase in the rate of receiving chuna therapy was significant in Group A and Group B(${\rho}<0.05$). 2.The increase in the onset of the disease for more than one year was significant in Group C and Group D(${\rho}<0.05$). 3.The increase in the proportion with disease Corporal was significant in Group E and Group F(${\rho}<0.05$). Conclusions: According to according to the Application of Chuna Therapy Health Insurance and Medical benefits, the number of patients receiving Chuna Therapy increased, and people with old illnesses were more likely to receive Chuna Therapy.