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Alternatives for Optimum Installation of Rural Sewage Treatment Facilities in Chungchongnam-do Province (충청남도 마을하수처리시설의 최적 설치방안)

  • Yi, Sang-Jin;Jung, Jong-Gwan;Lim, Bong-Su;Huh, Jae-Young
    • Journal of Korean Society of Water and Wastewater
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    • v.19 no.4
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    • pp.462-472
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    • 2005
  • This study was carried out to suggest the plans for installation of rural sewage treatment facilities through the analysis of these facilities installed in Chungchongnam-do Province. About 5% of all installation was carried out by the department of wastewater and related environment problems and the other case was carried out by the department of construction or residence. In wastewater caused by 250 and 300 persons, facilities capacity do not exceed about $50m^3/d$, caused by 2,500 and 3,000 persons, $500m^3/d$. Advanced sewage treatment process were first needed in the discharge area where affected the water environment greatly. However, in carrying out the water quality pollutant of the total amount management system in the other areas, they should be driven only over the scale of pollutant quota object facilities standard. Rural sewage must be included in the special accounts according to the regulations of local government, and sewage treatment cost should be collected to manage. Installation type uses integrating joint treatment method in case the distance among villages is short or one treatment facility independently.

A Literature Review on the Adhesive Herbal Treatment on Sprain (염좌의 첩부치료에 대한 문헌 고찰)

  • Yang, Gi-Young;Lee, Eun-Kyung;Choi, Eun-Hee;Jeon, Ju-Hyun;Lee, Byung-Ryul;Kim, Young-Il
    • Journal of Acupuncture Research
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    • v.26 no.1
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    • pp.23-28
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    • 2009
  • Objectives & Methods : The main point of this literatual study was to develop an external treatment on sprain using adhesive herbal pack. Results & Conclusions : The herbs which was used in adhesive treatment matched the same function with oral herb medicine such as, promoting blood flow to remove blood stasis, relieving rheumatic conditions, and removing obstruction in meridians and collaterals. Based on these function it was reviewed that adhesive herbal pack directly effected the sprain region from herbs by using alcohol, water to produce the pack. But even though it is known that the method of adhesive herbal treatment changes, most treatment still uses the traditional method. So researching on adhesive herbal treatment is required in the future.

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An Application of the NPR Process for the Treatability Improvement of an Existing Sewage Treatment Plant (기존 하수처리장 성능개선을 위한 NPR공정의 적용)

  • Moon, Tae Hoon;Ko, Kwang Baik;Song, Eui Yeol
    • Journal of Korean Society on Water Environment
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    • v.23 no.5
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    • pp.756-760
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    • 2007
  • Most of the sewage treatment plants in Korea are being operated by using the conventional activated sludge process. Recently, as the water criteria have been strict with regard to such main culprits of eutrophication, the existing sewage treatment plants are obliged to upgrade their treatment technology to meet the criteria. Under such circumstances, this study was aimed at analyzing the conditions of an existing sewage treatment plants in Korea, and thereupon, test its treatment performance for the actual sewage water by operating a pilot plant. When the pilot plant was operated with the NPR process at the capacity of $30m^3/day$, the average contents of BOD, $COD_{Mn}$, SS, T-N and T-P in the effluents were 7.0 mg/L, 9.7 mg/L, 5.1 mg/L, 8.0 mg/L and 0.23 mg/L, respectively, which were very stable in general. Accordingly, if the NPR process used for this pilot plant to upgrade the treatment technology for the sewage treatment plat could be adopted, the effluent water quality criteria effective beginning from 2008 would be met.

Models for drinking water treatment processes

  • Jusic, Suvada;Milasinovic, Zoran;Milisic, Hata;Hadzic, Emina
    • Coupled systems mechanics
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    • v.8 no.6
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    • pp.489-500
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    • 2019
  • With drinking water standards becoming more rigorous and increasing demands for additional water quantities, while water resources are becoming more polluted, mathematical models became an important tool to improve water treatment processes performance in the water supply system. Water treatment processes models reflect the knowledge of the processes and they are useful tools for water treatment process optimization, design, operator training for decision making and fundamental research. Unfortunately, in the current practice of drinking-water production and distribution, water treatment processes modeling is not successfully applied. This article presents a review of some existing water treatment processes simulators and the experience of their application and indicating the main weak points of each process. Also, new approaches in the modeling of water treatment are presented and recommendations are given for the work in the future.

The Effects of Soybean pre-treatment & Mercerization of Cotton on the Dyeability of Chestnut Shell Dyebath (면직물의 두즙처리 및 머서화처리가 밤외피염액의 염색성에 미치는 영향)

  • Jeong Young Ok
    • The Korean Journal of Community Living Science
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    • v.16 no.1
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    • pp.65-72
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    • 2005
  • To increase dyeability of cotton fabric to the chestnut shell dyeing, we had several dyeing experiments with the experimental fabrics which was pre-treated by soybean, NaOH, KOH. Three kinds of experimental cotton fabrics were used and chestnut shell dyebath was made for the experiment. Munsell's color HV/C and color differences ΔE of dyeing fabrics were compared between pre-treatment and none pre-treatment dyeing fabrics. The main results were as follows ; Color differences of dyeing fabrics pre-treated with soybean, NaOH, KOH were higher than those of none pre-treated dyeing fabrics. In case of pre-treatment with soybean, the concentration of the soybean bath affected the color differences but not affected in case of pre-treatment with NaOH & KOH. Munsell's color of pre-treatment fabrics with soybean, NaOH, KOH were same with the none pre-treatment fabrics. Colorfastness of the pre-treated fabrics were same degree, but only in case of soybean pre-treated fabrics were low in fastness of washing(change) & perspiration(acidic change).

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Improvement of the Biodegradability of Polyvinyl Alcohol by Radiation Treatment (방사선 처리에 의한 폴리비닐 알콜의 생분해도 개선)

  • Jung, Jinho;Park, Nam-Young;Jo, Hun-Je;Lee, Sun-Mi;Kim, Jeong-Gyu
    • Journal of Korean Society on Water Environment
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    • v.20 no.3
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    • pp.241-244
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    • 2004
  • Radiation treatment with gamma-rays and electron-beams was used to remove polyvinyl alcohol(PVA), one of the main components of dyeing wastewater. PVA was effectively decomposed by radiation treatment, thus the removal was near 100 % at an initial PVA concentration of 44 mg/L. However, total organic carbon(TOC) removal was less than 5 % due to lower transformation of PVA to $CO_2$. This directly indicates the radiation treatment alone is not appropriate for the complete decomposition of PVA. In this sense, the improvement of biodegradability($BOD_5/COD$) of PVA by radiation treatment was studied. Both gamma-ray and electron-beam treatments significantly increased the biodegradability of PVA by transforming non-biodegradable PVA to biodegradable by-products. This suggests radiation treatment, especially electron-beam treatment that showed better improvement of biodegradability, can be used as a pre-treatment of biological degradation process of PVA.

Literature Review of Clinical Studies for Herbal Medicine Treatment on Juvenile Idiopathic Arthritis (JIA) (소아 특발성 관절염의 한약치료에 대한 문헌 고찰)

  • Kim, Miyeon;Jeong, Minjeong
    • The Journal of Pediatrics of Korean Medicine
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    • v.32 no.4
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    • pp.24-41
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    • 2018
  • Objectives The purpose of this study is to investigate the clinical studies on the effect of herbal medicine in JIA and to seek better approach of herbal medicine to treat JIA. Methods This study researched randomized controlled trials through various databases in the world about herbal medicine treatments in JIA. Results 11 out of 414 studies were selected and analyzed. All studies were conducted in China. Most of the studies were using herbal medicines, as an adjunctive treatment to the main regimen, and the total effective rate was higher in the treatment group than in the control group. One study was comparing the herbal oriental medicine treatment to the western medicine treatment, and it showed that treatment group was more effective than control group. 5 out of 11 studies reported treatment cases from a single herbal medicine; most of them used Total glucosides of Paeonia (TGP). Clematidis Radix et Rhizoma (威靈仙) were also commonly used, as well as medicinal herbs belong to Eliminating wind-dampness medicine (祛風濕藥) and Activating blood resolving stasis medicine (活血祛瘀藥). Conclusions Based on this study, herbal medicines for JIA treatment will be effective even if used alone or in conjunction with other medicines. To apply clinically, further studies are needed.

Investigation on the operational state of the public food waste treatment facilities and suggestions on their efficient operational management (음식물류폐기물 공공 자원화시설의 운영실태 조사를 통한 처리공정별 효율적인 운영방안 검토)

  • Jang, Yun-Hyeok;Park, Joon-Seok;Kim, Joung-Dae;Phae, Chae-Gun
    • Journal of the Korea Organic Resources Recycling Association
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    • v.18 no.1
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    • pp.47-56
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    • 2010
  • At present, 265 national food waste recycling facilities have been operated by public facilities 95 and private facilities 160. it has continuously installed a food waste treatment facility from 1997. The government set up and implemented guidelines and inspection standards for the installation and operation of the facilities. However, unclear detailed examination items, designs and process standards for the installation procedures of the facilities are causing problems due to the unskilled operation management system, decrease in efficiency and defects of a facility. This study conducted mail and site surveys on 95 public food waste recycling facilities that it suggest the ways to operate facilities which minimize problems. At the result of investigation, a pre-treatment facility was not installed 2 systems(2 inputting facilities) and hopper covers and food was overloaded. also the transportation amount was excessive. In case of a main treatment facility, the secondary environmental pollution was caused by inexperienced operation and the efficiency of the facility was reduced due to excessive input of food. also the operation management standards of the facilities were inappropriate. The odor and food waste leachate treatment facility is investigated as problems that are unskilled operation, lack of regular inspection and inappropriate capacity of the treatment facility. Based on the problems found through the investigation, it suggested some ways of efficient operation. this study might contribute to minimize mistakes and defects and improve the efficiency of install and operation course of food waste recycling facilities through finding.

Surgical Treatment of Multiple Lung Abscesses with Adenoid Cystic Carcinoma - A Case Report - (선양 낭포암에 의한 다발성 폐농양의 외과적 치료 - 1례 보고 -)

  • 김도형;조현민;정은규;강두영;손국희;이두연
    • Journal of Chest Surgery
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    • v.35 no.1
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    • pp.73-76
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    • 2002
  • Adenoid cystic carcinoma is a very slowly growing and directly invasive cancer. The treatment of choice is complete surgical resection but if major complications associated with remaining carcinoma occur, aggressive conservative treatment to prevent complication is able to gain long term survival even though remaining carcinoma metastases to other organs. We experienced a case of surgical treatment of uncontrollable fever that caused by multiple lung abscesses due to obstruction of left main bronchus with adenoid cystic carcinoma. The post operative course was uneventful for 4 months to now.

Manganese treatment to reduce black water occurrence in the water supply

  • Kim, Jinkeun
    • Environmental Engineering Research
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    • v.20 no.3
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    • pp.230-236
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    • 2015
  • 26 multi-regional water treatment plants (WTPs) were investigated, to determine the characteristics of manganese (Mn) concentration and removal in Korea. Mn concentrations of raw water in most WTPs were higher than the drinking water standard (i.e., 0.05 mg/L); thus, proper removal of Mn at the WTPs is needed. Mn concentration was generally higher in lakes than rivers due to seasonal lake turnovers. The Mn concentrations of treated water at 26 WTPs in 2012 were less than 0.05 mg/L, due to strict law enforcement and water treatment processes optimization. However, before 2010, those concentrations were more than 0.05 mg/L, which could have led to an accumulation of Mn oxides in the distribution system. This could be one of the main reasons for black water occurrence. Therefore, regular monitoring of Mn concentration in the distribution system, flushing, and proper Mn removal at WTPs are needed, to supply clean and palatable tap water.