• 상하수도학회지
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• 제18권6호
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• pp.715-723
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• 2004

The quantity of residuals generated from water treatment plants depends upon the raw water quality, dosage of chemicals used, performance of the treatment process, method of sludge removal, efficiency of sedimentation, and backwashing frequency. Sludge production by the physical separation of SS occurs under quiescent conditions in the primary clarifier, where suspended solids are allowed to settle and to consolidate on the clarifier bottom. Raw primary sludge results when the settled solids are hydraulically removed from the tank. The relative solid and liquid fractions of a slurry are most commonly described by the solids concentration, expressed as mg/L or percent solids. The purpose of the present investigation is to estimate a suitability on the design capacities of residuals treatment facilities by the quantity of dewatered sludge generated from water treatment plants.

• 산업기술연구
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• 제31권A호
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• pp.135-145
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• 2011

This study was conducted to analyze the cost effectiveness in line with total phosphorus standard enforcement of public sewage treatment facilities. The additional cost for the total phosphorus removal process was calculated to analyze the cost effectiveness of the advanced water purification process. The analysis results showed that the T-P removal by coagulation sedimentation was more efficient than the advanced water purification facilities in terms of facilities investment cost, and if the coagulation filteration was used for T-P removal, the activated carbon process among the advanced water purification techniques was more efficient in terms of facilities investment cost. In this study, the effects of the T-P removal process that will be additionally introduced according to the tightening of the effluent T-P standard were analyzed within a limit. The actual benefits of improved T-P concentration in the water source will provide diverse values, including the leisure water, environment improvement water, eco-system in the water source and industrial water, in addition to the advanced water purification.

• 지질공학
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• 제31권4호
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• pp.523-532
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• 2021

본 연구에서는 고속도로 공사 시 주변에 분포하고 있는 황철석이 포함된 암버럭을 성토재로 활용한 사례를 대상으로 산성배수 처리방안을 조사 및 평가하였다. 도로 시공 시 해당 성토구간에 알칼리 차수제를 이용한 중성화 공법을 적용하여 산성배수가 발생되지 않도록 하였다. 그러나 시공이 완료된 이후 장기적인 우수침투로 인하여 산성배수가 유출되어 주변의 토양과 하천을 오염시켰다. 이를 해결하기 위하여 SAPS 조 혹은 생태습지 및 모래여과시설과 같은 정화처리시설을 설치하였다. 정화처리시설 설치 후 유출부에서의 방류수와 주변 토양을 대상으로 산성배수로 인한 오염여부를 평가하였다. 유출부에서의 방류수에 대한 pH 측정 및 주변 토양의 중금속 오염 분석 결과 산성배수에 대한 중화처리가 적절하게 진행되고 있으며, 산성배수 내 존재하는 중금속에 대한 오염관리도 안정적으로 진행되고 있음을 확인할 수 있다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 추계 학술논문 발표대회
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• pp.34-35
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• 2015

Recently, introduction of Advanced water treatment facilities has been increasing due to serious domestic water pollution. Ozone is a strong oxidizing materials in the advanced water treatment facilities. However, due to such a strong oxidation, Ozone eroded waterproofing/corrosion on the concrete surface and caused performance degradation. Therefore, in this study, permeability experiment of metal spraying system by concrete surface treatment was conducted.

• 한국응급구조학회지
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• 제14권3호
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• pp.13-28
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• 2010

Purpose: In this study, we investigated the better application of the law which is about the AED installation and more effective ways of emergency medical care system, to understand the law and to research the current condition of public facilities which belong to local governments, and to seize the aspect of safety guards who currently work in order to provide the installation of AED in the public facilities and to provide more efficient emergency medical service with the effectuation of the immunity law of the good intention of first-aid treatment. Methods: In Gwang-ju, 234 public facilities have been identified by 31 December, 2008. With the exception of the duplication, we researched 158 facilities and received the answers from 95 of them. Results: In the research, 53% of them have had internal emergency first-aid education, and 55% of them didn't have this education and a CPR education manual, and 30% of the facilities even didn't know how to connect with the manager of the company for the first-aid department. On the other hand, most of them were highly interested in CPR and AED education on the ratio of 91% and 93%. 88% of them have been trained about first-aid, 51% of them haven't been retrained, 17% have never been trained. so, the reality of emergency system at public facilities is serious. 78% of them knew they are working at public facilities, though 49% of them didn't know about AED installation. 57% of them didn't know the fact there is the immunity law related with good intentions for first-aid treatment. 63% of the facilities have security guards, and 30% of them didn't answer the questions. Also, many of them agreed to the opinion that all employees should have first-aid training. At representative survey report of participator of public-facility, emergency treatment is 61%, 16% of patients calling. Accordingly they importantly think better doing an on-site first-aid than evacuating the patient. And the rates show that 57% of them answerers tend to call Fire-Office(119) for evacuating the patients, and 28% of them EMIC(1339) for the first-aid. Conclusions: In this study, we are suggest to improve the details of the efficient operations and management after the grasp of the uninstallation, indifference, and unreliable conditions of AED. 1) Need a publicity of AED install cognition which is an emergency medical instrument at public facilities. 2) Arrangement of safety agents at facilities and concerns about them for good management from the parties concerned. 3) Need a designation of legal details according to the decision of the AED installation and the standard of the AED installation. 4) Training about first-aid of safety guards and the persons concerned in the facilities should be practiced participation with the positive and through this, first-aid treatment could be done by anyone who knows the immunity law related to medical emergency. 5) The brochures for the potential users and the results form practicing the instructions need to be improved in many ways through recording the emergency cases that have happened.

• 환경영향평가
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• 제21권5호
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• pp.725-734
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• 2012

The outbreak of foot and mouth disease in November 2010 raised many social, economic and environmental issues and water contaminations by leachate from carcass disposal sites particularly emerged as a serious concern. In oder to efficiently handle these problems, a critical method is required to transport leachate to livestock manure and sewage treatment plants and purify it. This study aims to present the best applicable method to transport leachate from carcass disposal sites into livestock manure and sewage treatment facilities. We investigated the biological and chemical characteristics such as BOD, COD, SS, TN, TP and Total coliforms. Current conjugated treatments in livestock manure and sewage treatment plants was studied by surveying the operations of those facilities. The NIER-MASS(National Institute of Environmental Research - Mass Balance Evaluation System of Sewage Treatment Facilities) program was applied to present the best conjugated treatment method through estimating the maximum daily load to meet the water quality standards in effluent.

• 유기물자원화
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• 제14권2호
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• pp.121-128
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• 2006

본 연구에서는 '05년도 기준 전국 23개소의 하수오니처리시설의 현황 및 문제점을 다각적으로 분석하고, 이를 바탕으로 향후 효율적인 하수오니처리 체계 개선 방안을 위해 요구되는 사항에 관하여 검토 하였다. 전국 23개 하수오니처리시설 현황 분석 결과에 따르면, 6개 시설은 시설운영에 있어서 경제성확보가 어려워 정상가동에 큰 어려움이 있는 것으로 조사되었으며, 2개 시설은 시설운영과 관련한 기술성의 부족으로 인해 적정 운영에 장애가 있는 것으로 분석되었다. 또한, 상당수 시설은 환경적 문제(악취, 폐수발생)로 인한 지역주민의 민원제기가 시설 운영에 있어서 큰 어려움으로 작용하는 것으로 나타났다. 우리나라는 아직까지 폐기물처리에 있어서 효율적인 시설설치 및 운영을 위한 별도의 지침서(Guide Line)제공이 외국에 비해 활성화되어 있지 못하며, 초기 시설설치 시, 하수오니처리에 따른 환경적 경제적 기술적인 측면을 모두 만족할 수 있는 사전 검토가 불충분하게 이루어져왔다. 따라서 보다 효율적이며, 안정적인 하수오니 처리체계 기반을 마련하기 위해서는 오니처리와 관련한 종합적인 대책이 미흡한 현 시점에서 선진외국과 같이 유기성오니의 처리 및 관리의 전반적인 내용을 다루는 지침서(가이드라인) 마련이 요구되며, 정부 관계부처에서는 일시적이며, 단편적인 행정 대책 보다는 해당 부서 간의 원활한 조정 및 합의에 의한 종합적인 대책 마련이 요구된다.

• 농촌지도와개발
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• 제23권4호
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• pp.361-374
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• 2016

This study examined the regulation status on wastewater treatment in agro-food processing and a case study on effluent treatment m ethods was carried out to evaluate any change after the mitigation of regulation. First, in order to clarify the area of investigation, the definition of small-scale agro-processing facilities was reviewed through literature survey and local government ordinance. The current law were separately analyzed into four areas; effluent treatment facilities, development of agro-processing industries, land use and food processes equipment. The exclusion clauses on wastewater discharging facility in the enforcement regulation were defined in detail, which can be served in practice. Site survey, after the questionnaire survey of the person in charge of the local unit, was carried out. As the result, this survey confirmed the positive effects of the deregulation on promoting sewer system service in rural areas, introducing the new processing construction and so on. In addition, it was found that some matters to be considered to determine whether to introduce wastewater treatment plan for public food processing facilities.

• Asian Pacific Journal of Cancer Prevention
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• 제14권9호
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• pp.5049-5054
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• 2013

Background: To assess the treatment pattern and expenditure incurred by cancer patients undergoing treatment at government tertiary hospitals in India. Materials and Methods: A cross-sectional study of 508 cancer patients randomly selected from tertiary cancer hospitals funded by central/state governments located in major cities of five states in India, namely Kerala, Maharashtra, Rajasthan, West Bengal and Mizoram, during March - May 2011 was conducted. Information related to direct costs, indirect costs and opportunity costs incurred on investigations and treatment, major source of payment and difficulties faced by patients during the course of treatment was collected. Results: About 45% of the patients used private health facilities as the first point of contact for cancer related diseases as against 32% in public hospitals. About 47% sought private health facilities for cancer investigations, 21% at district/sub-district hospitals, and about 4% contacted primary health care facilities. A majority of the patients (76%) faced financial problems while undergoing treatment. Conclusions: The results highlight the importance of involving the primary health care system in the cancer prevention activities.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제29권2호
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• pp.49-60
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• 2023

Purpose: This study aims to establish detailed spatial planning by identifying the needs for a seclusion module for emergency psychiatric patients. Methods: The necessity of medical space with seclusion function was analyzed from spatial, medical, and social perspectives. The needs for a space capable of performing three medical functions: protection, isolation, and treatment, was analyzed. Among various types of mobile medical facilities, seclusion space was considered suitable for utilizing modular construction methods, as it is the most rational method that can satisfy the environmental level of fixed healthcare facilities' space. Therefore, seclusion modules based on modular construction were planned, consisting of two protective units for stabilizing patients with psychiatric illness, one for treatment unit that can accommodate both internal and external treatment, and another one for an infectious disease isolation unit equipped with negative pressure equipment. Implications: This study analyzed the necessary medical functions of the interior space of the mobile stabilization module based on the spatial analysis of existing medical facilities, and proposed alternative spatial configurations according to treatment, seclusion, isolation functions.