• Title/Summary/Keyword: Dying Process

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Nanofiltration of Dyeing Wastewater Using Polyamide Ro-Membranes after the Pretreatment with Chemical Coagulants

  • Hwang Jeong-Eun;Jegal Jonggeon;Mo Joonghwan;Kim Jaephil
    • Korean Membrane Journal
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    • v.7 no.1
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    • pp.58-66
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    • 2005
  • Nanofiltration (NF) of a dyeing wastewater was carried out using polyamide NF-membranes. Before applying the wastewater to the membrane process, it was pretreated with various chemical coagulants such as alum, ferric chloride and HOC-100A. In order to see the effect of the pretreatment of the wastewater using chemical coagulants on the membrane separation process, the optimum conditions for the coagulation and sedimentation process using the chemical coagulants were sought. By the pretreatment, despite the different coagulants used, the chemical oxygen demand (COD) and UV-absorbance of the wastewater were lowered by more than $70\%$. The pretreated wastewater was then applied to the membrane process. The effect of the coagulants used for the pretreatment on the membrane fouling was studied. From this study, it was found that the HOC-100A was the best out of the coagulants used far the removal of the materials that could cause membrane fouling.

Estimation of Characteristics Treatment for Food Waste and Valuable as Solid Refuse Fuel (SRF) using Bio-drying Process (Bio-drying 공법을 이용한 음식물류 폐기물 분해 특성 평가 및 고형연료로서의 가치 평가)

  • Jeong, Cheoljin;Park, Seyong;Oh, Dooyoung;Jang, Eun-Suk;Song, Hyoungwoon
    • Journal of the Korea Organic Resources Recycling Association
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    • v.25 no.1
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    • pp.23-33
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    • 2017
  • In this study, water and organic treatment efficiency and operating characteristics (temperature, salinity effect) were evaluated when food waste with high water content was treated by Bio-dying method. In addition, the optimum conditions for producing pellets for evaluating the decomposition products as SRF(Solid Refuse Fuel) after Bio-drying and evaluating the use value of SRF as a solid fuel were analyzed. As a result, the temperature, $CO_2$ concentration, organic matter removal rate and weight reduction rate according to the daily dose were about 86% and 68% at the input of 2.4 kg/day. The optimal food waste input was estimated to be 2.4 kg/day. As a result of the pellet molding and produce, Pellets can be produced within 10~25% of raw material water content. It was judged that the water content of 25%, which showed the best quality results in terms of external shape maintenance and strength. The high calorific value of SRF of decomposition products after Bio-drying was more than 3,500 kcal/kg.

Legislation on Aid in Dying in France (조력사망에 관한 프랑스의 입법 동향)

  • Jieun Lee
    • The Korean Society of Law and Medicine
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    • v.25 no.1
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    • pp.193-222
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    • 2024
  • From a global trend, discussions on the patient's death with dignity are gradually progressing from the issue of withdrawal of life-sustaining treatment to the issue of whether to allow assisted death and its requirements. Several states in the United States and Western European countries such as Canada, Belgium, and the Netherlands have institutionalized treatment to accelerate the time of death through the assistance of doctors. In France, after a long period of raising and reviewing issues, discussions on related legislation are taking place at a slower pace than in other European countries. In France, social discussions and legislative attempts on death with dignity have been actively conducted since the late 20th century. The Leonetti Act of 2005 prohibited the continuation of meaningless treatment against the will of patients, and after the Clay-Leonetti Act of 2016, it was legalized to administer intensive and continuous sedatives to patients until death. However, unlike many neighboring European countries, treatment that speeds up the time of death itself is still prohibited in France, even if the patient wants. As the existential and universal question of whether to allow dying patients to die painlessly with the help of a doctor has recently emerged as an important issue, a number of lawmakers have submitted legislation to legalize assisted death. This paper examines the legislative process developed in relation to patients' rights to dignified death in France, and compares and reviews French legislation that attempts to legalize assisted death with the amendment to the Korean Life-Sustaining Treatment Act.

Studies on the Colorfastness to Perspiration of Knitted Blouse (편직물 Blouse의 (땀)에 대한 염색견로성에 대한 연구)

  • 이원자
    • Journal of the Korean Home Economics Association
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    • v.11 no.3
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    • pp.285-298
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    • 1973
  • The colorfastness of dying persipiration and laundry on summer clothing must be considered, because it has special relation to the human body. The colors of fibers as cotton, p/c, acryl, polyester and nylon which have been widely used for blouse and T-Shirt of Knitted wear are R-P, Y-G, BI-B and print. Studies were carried out with persipirometer, for the natural fiber of cotton the chemical one of nylon, with additional stuff involved, which polluted. The experiment was conducted to colorfastness with acid solution and alkaline solution to see the alteration of color and staining of man-made persiperation. The results obtained from this experiment can be summerized as follows. 1. The order of color alteration isnylon < p/c < coton < polyester < acryl, and the nylon shows the lowest colorfastness, which is 3 class, and the acrly shows the highest colorfateness, which is 5 class. The staining of multifiber test of cotton fabric is nylon < p/c < polyester < cotton < acryl. The staining of multifiber of nylon fabric is nylon polyester < p/c < cotton < acryl. 2. In acid solution and alkaline solution, the alteration of color and staining makes almost no difference, but concerning staining of cotton, the acid solution is lower than the case of alteration solution only. 3. In the pollution on cotton and nylon, the latter is more easily polluted than the former regardless of fabrics. Especially in case of polluted nylon, ti shows the lowest color fastness (2 class), which causes a problem of the dying process and dye stuffs. 4. No difference of color alteration shows among them, but R-P and print show low color fastness (2 class), especially printed nylon shows the lowest value (1 class).

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Composition of Cotton Textile Dyeing Process Wastewater and its Treatment Characteristics by Ionized Gas (면섬유염색폐수의 공정별 폐수성상과 이온화가스에 의한 처리특성)

  • Lim, Gyeong-Eun;Chung, Paul-gene;Kwon, Ji-Young;Lee, Eun-Ju
    • Journal of Korean Society on Water Environment
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    • v.23 no.3
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    • pp.303-308
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    • 2007
  • Three types dyeing wastewater (dark, medium, light color) discharged from cotton textile dyeing with reactive dye was collected at each step of process. Each process dying wastewater was analyzed and treated by ionized gas. The analysis focused on $COD_{Cr}$, SS and color. Bleaching & scouring process wastewater has the highest $COD_{Cr}$ value in the three type dyeing wastewater. SS shows the highest value at dyeing process wastewater in dark and medium color but light color has at finishing process wastewater. The result of process wastewater treatment by ionized gas was that the ionized gas was effective in $COD_{Cr}$ removing of bleaching & scouring process and finishing process wastewater but was not good at dyeing process wastewater. From that result it is estimated that the ionized gas could not work in opening the aromatic ring and react only in aliphatic component of the molecule. Because the surfactants contained in bleaching & scouring process and finishing process wastewater have only one aromatic ring in its molecular structure, in contrast with the reactive dye compounds consist of aromatic rings great part of its molecular structure. The color almost removed in 1.5 hrs reaction time but $COD_{Cr}$ removal effiency was only 30.7% through 3hrs in 1500 mL of total dyeing wastewater treated by 10 L/min ionized gas.

Development of Audio-visual Aids of Death Education for Hospice Patients and Their Families (호스피스 환자와 가족을 위한 임종교육 시청각 자료 개발)

  • Seo, Mi-Suk;Kang, Yu Jung;Yoon, Ji Yoon;Kim, Tae Yeon;Cho, Hye Jun;Park, So Yeon;Lee, Si Yeon;Jang, Ji Hye;Kim, Yu Jin;Kang, Mi Teum
    • Journal of Hospice and Palliative Care
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    • v.19 no.3
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    • pp.240-248
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    • 2016
  • Purpose: Patients and their caretakers need to understand various problems and requirements in the dying process so that they may prepare for death for the rest of their remaining life. Accordingly, a systematic audio-visual resource was developed to educate hospice patients and their families at the palliative care ward about the process of dying. Methods: For the development of an audio-visual resource, a initial education material was produced in the form of simple and accessible Power Point handouts based on literature study. Then, the program was completed through five rounds of a process, including expert advice, revision, update and evaluation. Results: The final version of the program was filmed with cooperation of the medical literature information division. Using the program, patients and families were educated through five phases over three sessions for a total 26 minutes and 34 seconds. Conclusion: The significance of this study lies in the fact that it was conducted after the establishment of the palliative care ward, which made it easier for nurses provide the education. It is expected that the program may be used by hospice specialists as well as nurses as an education resource for hospice patients and their families.

Lived Experience of patients with Terminal Cancer : Parses Human Becoming Methodology (말기 암환자의 체험에 관한 현상학적 연구)

  • 이옥자
    • Journal of Korean Academy of Nursing
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    • v.25 no.3
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    • pp.510-537
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    • 1995
  • Human health is an integral part of experience in the process of Human Becoming. Through continual interaction with the environment human beings freely choose experience and develop as responsible beings. The process of the health experience of patient with terminal cancer is a unique. he objective of this study is to understand the lived experience of patients with terminal cancer in order to provide basic information for nursing care in the clinical setting and to develop a theoretical background for clinical practice. This study is to de-scribe and define the lived experience of patients with terminal cancer in order to provide a foundation for nursing research and education. Data collection has been done between December 1993 and November 1994. The subjects included five persons -four females and one male : one who was in her sixties, one in his fifties, two in their forties, and one who was in her thirties. The researcher has met with these patients 35 times, but at eight times the patient was in a stuporous condition and not able to participate, so these were not included in the data analysis. Parse's "Human Becoming Methodology", an existential phenomenological research methodology is used for this study. Data has been collected using he dialogical engagement process of "I and You", the participant researcher and the participant subject. Dialogical engagement was discontinued when the data was theoretically saturated. Data was analyzed using the extraction - synthesis and heuristic interpretation. The criteria of Guba and Lincoln(1985). and Sandelo wski(1986) : credibility, auditability, fitness and objectivity were used to test the validity and reliability of the data. The following is a description of the structure of the lived experience of patients with terminal cancer as defined by this study : 1. Structure : 1) Suffering through the reminiscence of past experience 2) The appearance of complex emotions related to life and connectedness 3) The increasing importance of significant people and of the Absolute Being 4) The increasing realization of the importance of health and belief 5) Desire for a return to health and a peaceful life or for acceptance of dying and a comfortable death In summary the structure of the lived experience of these patients can be said to be : suffering comes through reminiscence of past experience, and there are complex emotions related to life and connectedness. Significant people and the Absolute Being become increasingly important along with a realization of the importance of health and faith. And finally there is a desire for either a return to health and a peaceful life or for the acceptance of dying and a comfortable death. 2. Heuristic Interpretation : Using Parse's Human Becoming Methodology, the structure of the lived experience of patients with terminal cancer identified in this research is interpreted as. The lived experience of patients with terminal cancer involves the solving of past conflicts, and the experience of the healing and valuing of sorrow and pain. Through the relation of life and health, and the complex emotions that arise, the lived experience of revealing - concealing is of paradoxical emotions. The increasing importance of significant others and of the Absolute Being shows Connecting and Separating an on- going process of nearness and farness. Revision of thoughts about health and faith is interpreted as transforming and desire for restoration to health and a peaceful life or acceptance of dying and a cowfortable death, as powering. In summary, it is possible to see, in the lived experience of patients with terminal cancer, the relationship of the five concepts of Parse's theory : valuing, revealing -concealing, connecting-separating, transforming, and powering. From Parse's theory, the results of this study show that meaning is related to valuing, rhythmicity to revealing-concealing and connect-ing-separating, and cotranscendence to transforming and powering.

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Analysis of Anthocyanidin in Mulberry of Cu Complex Compound and Natural Dyeing on Sangju Silk (오디의 안토시아니딘에 구리를 이용한 착화합물 합성 및 상주실크에 천연염색)

  • Lee, Kwang-Woo
    • Journal of the Korean Society of Industry Convergence
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    • v.13 no.4
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    • pp.191-196
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    • 2010
  • This study explores the solution of a variety of conditions of the natural dyeing with the Mulberry. To obtain this, the Cu complex compound was added into the extracts. The Mulberry extract was added the Copper acetate to obtain the Black sediment the metal complex compound of anthocyanidin. According to the result of using the complex compound of the solid material, the dyeing properties were excellent. The metal complex compound acted as a mordant, thus it reduced the process of mordanting in the natural dying.

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USE OF FOULING RESISTANT NANOFILTRATION AND REVERSE OSMOSIS MEMBRANES FOR DYEING WASTEWATER EFFLUENT TREATMENT (막오염 저항성이 우수한 나노여과 및 역삼투막의 염색폐수 적용)

  • Myoung, Su-Wang;Park, In-Hwan;Ka, Young-Hyun;Kim, In-Chul;Lee, Kew-Ho
    • Proceedings of the Membrane Society of Korea Conference
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    • 2004.05b
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    • pp.136-139
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    • 2004
  • The dyeing effluent is a highly colored stream containing unfixed dyes along with salts and auxiliary chemicals such as emulsifying agents. Moreover, Textile dying is a chemically intensive process and consumes large quantities of water. Difficulties in the effluent treatment arise from its non-degradable property by aerobic digestion.(omitted)

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A Developmental Methodology of Environmental Impact Assessment: Application of Health Risk Assessment (환경영향평가에 있어서 건강위해성평가 기법의 활용방안에 관한 연구)

  • Koo, J.K.;Chung, Y.
    • Journal of Environmental Impact Assessment
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    • v.1 no.1
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    • pp.51-59
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    • 1992
  • Environmental Impact Assessment(EIA) is defined as an activity designed to identify and predict the impact on the environment. In the process of an EIA, the quantitative evaluation is generally performed for the air and water quality which have the national environmental quality standards. But the predicted values for the air and water quality are simply compared to the environmental standards. At present, the EIA process of Korea has no consideration for the possible human health risk resulting from the development projects. Environmental Health Impact Assessment(EHIA) is an applied methodology of EIA to estimate the acceptable health risk caused by a specified level of environmental pollutants. Estimating the excessive lifetime risk that is a possibility of dying of a certain disease by environmental contaminants, is useful as an evaluation technique of EHIA. It is recommanded the decision-makers to make efficient use of EHIA not only the development projects but also legislative proposals, policies and programmes in future.

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