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T : 목차정보

韓國環境保健學會誌 = Journal of environmental health scienc...韓國環境保健學會誌 = Journal of environmental health sciences 8건

  1. [국내논문]   음식물쓰레기의 세척이 호기성 퇴비화에 미치는 영향   피인용횟수: 1

    박석환 (서원대학교 환경 건설정보학과)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 1 - 6 , 2004 , 1738-4087 ,

    초록

    This study was performed to estimate the effects of washing of food wastes on temperature, pH, weight and volume reduction and salinity in aerobic composting of food wastes. Weight ratios of food wastes to water in washing were 1:0(Control), 1:1 (W-1), 1:2(W-2), 1:3(W-3) and :4(W-4), respectively. Ratios of food wastes to wood chips in reactor of Control, W-1, W-2, W-3 and W-4 were 5 kg:5 1, respectively. Reactors were operated for 24 days with 1 hour stirring by 1 rpm and 2 hours aeration per day. The increase in the ratio of food wastes to water used in washing resulted in the decrease of the highest reaction temperature and the elongation of the high temperature reaction period. The lowering of the ratio of food wastes to water used in washing resulted in faster pH increase and the steady state in the weight reduction rate and the volume reduction rate of composts. The final salinities of Control, W-1, W-2, W-3 and W-4 were 0.95%, 0.73%, 0.65%, 0.57% and 0.41%, respectively.

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  2. [국내논문]   활성오니공법에서 영양염류 조성비와 공기조절이 팽화발생에 미치는 영향   피인용횟수: 1

    이장훈 (호서대학교 환경ㆍ안전공학부 환경공학 ) , 권혁구 (호서대학교 환경ㆍ안전공학부 환경공 ) , 강병곤 (호서대학교 환경ㆍ안전공학부 환경공 ) , 정준오 (호서대학교 환경ㆍ안전공학부 환경공학)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 7 - 14 , 2004 , 1738-4087 ,

    초록

    The change in filamentous bacteria appearance was observed by adjusting factors such as organic and nurient concentration of feed wastewater and the aeration rate in the reactor. In case that COD:N:P and DO were 100:10:1 and 6.1 m1/1 respectively, the mean SVI was 122 ml/g and the filaments were developed normally in flocs. For the low DO con- dition, however, the SVI averaged 186 ml/g and the appearance of outgrowing filaments were more frequent. When the high organic was supplied into the reactor, the average SVI was 274 ml/g and the distinct filamentous bulking was observed. Meanwhile when COD:N:P was maintained at 100: 1 :0.5, the SVI was as low as 87 ml/g and the appearance of filaments were minimal and the size of flocs was small comparing other experimental conditions. For normal, low aeration and high organic concentration, predominant filaments in the early stage of experiments were commonly Type 021N,S. natans which were usually found in low DO condition. However, Type 041, Type 1851, Type 0961 became predominant as experiments extended. Meanwhile, in low nutrient condition, Type 0675, Type 1851, and Type 0961 were observed. The filamentous bacteria appearance for SVI 150(ml/g), S. natans and Type 021N(usually low DO in aeration basin) was predominant.

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  3. [국내논문]   국내 임상분리주 Streptococcus pneumoniae의 혈청형에 따른 유전적 상관성   피인용횟수: 2

    정경석 (안산1대학 임상병리과)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 15 - 21 , 2004 , 1738-4087 ,

    초록

    In an attempt to analyze the characteristics of domestic pathogenic strains of S. pneumoniae, the basic epidemiological charactristics of pathogenic strains such as their serotypes and frequency of penicillin resistance, and pattern of chromosomal DNA from PFGE(pulsed-field gel electrophoresis) were observed. For this study,56 strains of S. pneumoniae isolated from inpatients and outpatients in the four domestic university hospitals were collected from January to December in 1998. Among those strains, a total of 56 pathogenic strains from blood(39 isolates), cerebrospinal fluid(8 isolates) and other specimen(9 isolates) were selected and isolated. The penicillin resistance frequency of those 56 strains was identified with disk diffusion method with 66.1%. From the invasive strains, predominant serotypes were isolated in the order of 19F(12.5%), 23F(10.7%), 14(10.7%) and 9V(10.7%), totalling 45 percent. This experiment also used PFGE patterns to compare the correlations among genetic subtypes in several serotypes. The DNA fragments digested with Sma I and Apa I were resolved by PFGE. The PFGE patterns digested with Sma I were better than Apa I for analysis. In the DNA fragments digested with Sma 1, PFGE analysis of 56 S. pneumoniae isolates showed 25 different patterns. As a result, serotype was on the whole correlated to PFGE pattern on the ground that each different PFGE pattern by serotype was observed. This study can be utilized not only fur the study of incidence trend of domestic pneumococcal diseases but also as a useful basic data for the development of identification tool and treatment.

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  4. [국내논문]   한국 전통 간장의 숙성중 관능적 품질에 미치는 성분의 변화 -아미노산성질소, 아미노산 및 색도를 중심으로   피인용횟수: 4

    김종규 (계명대학교 공중보건학과)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 22 - 28 , 2004 , 1738-4087 ,

    초록

    This study was performed to investigate the changes of amino nitrogen, total amino acids, free amino acids, and color of Korean traditional soy sauce (kan-jang) during the ripening and storage for 12 months and the characteristics of the changes. All of the preparation methods for soy sauce followed the recommendations of the Korea Food Research Institute. The components of soy sauce were analyzed at 0,6, and 12 months. The contents of amino nitrogen of soy sauce were significantly higher than that of soybeans or meju (soybean cakes) at the initial stage of storage (p

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  5. [국내논문]   우리나라 일부 우유의 무기질 함량 조성에 관한 연구  

    이영희 (서울대학교 보건대학원 환경보건학과 ) , 정문호 (서울대학교 보건대학원 환경보건학과)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 29 - 40 , 2004 , 1738-4087 ,

    초록

    This study was performed to investigate and assess the composition of mineral and macronutrient contents in Korean cow′s milk.48 individual farm raw milk, 10 plant raw milk and 29 market milk were collected from June to August in 2003. The minerals such as calcium(Ca), potassium(K), magnesium(Mg), sodium(Na), zinc(Zn), iron(Fe) and phosphorus(P) were determined by using atomic absorption spectrometer(AAS). The macronutrients such as fat, protein and lactose were tested by using IR spectrometer. The obtained analytical results of minerals(mg/100 g) and rnaetronutrients (%) are as follows:1. In case of raw cow′s milk ; Ca 113.56, K 144.09, Mg 10.86, Na 42.53, Zn 0.42, Fe 0.030, p 113.32, fat 3.85, protein 3.08, lactose 4.80,2. In case of market cow′s milk ; Ca 103.04, K 142.46, Mg 10.27, Na 43.21, Zn 0.40, Fe 0.034. p 97.30, fat 3.78, protein 3.05, lactose 4.70,3. In case of fortified market cow′s milk ; Ca 165.40, K 145.79, Mg 10.57. Na 42.55, Zn 0.57, Fe 0.414, p 94.68, fat 3.74, protein 3.08, lactose 4.68,4. In case of processed market cow′s milk ; Ca 134.72, K 142.74, Mg 10.33, Na 45.07, Zn 0.50, Fe 0.650, p 92.48, fat 3.72, protein 3.07, lactose 4.74. According to the group of market milk(milk, fortified market row′s milk, processed market cow′s milk), the mean concentration of Ca and Fe were significantly higher in fortified and processed milk than milk(p $\alpha$ =0.05). 0.05). The labeled "Nutritional Facts" of market milk were satisfied with "Labeling Standards for Livestock Products of Korea". The measured mean concentrations of Ca, Fe, Zn were generally higher than lower limit of labeled value(above 80% of labeled value). The mean concentration of sodium was lower than upper limit of labeled value(below 120% of labeled value).

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  6. [국내논문]   아동의 모발 내 무기물 농도와 주의력결핍 및 과잉행동장애와의 상호연관성에 관한 연구   피인용횟수: 1

    유연아 (서울대학교 보건대학원 환경보건학과 ) , 정문호 (서울대학교 보건대학원 환경보건학과)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 41 - 49 , 2004 , 1738-4087 ,

    초록

    Attention Deficit Hyperactivity Disorder (ADHD) is one of the most general childhood problems occurs locally and internationally, but the causes of ADHD are not cleared yet. Therefore, this study tried to examine some parts of the causes of ADHD closely, and finally contribute to the medical treatment of ADHD and its precautionary measures, by measuring and comparing concentration of minerals in hairs of the patients of ADHD and their control group's children. which can analyze the relevance to ADHD and the mineral content in human bodies, and mutual relations between toxic minerals and essential minerals in human bodies. After collection of hairs from 200 children(5 to 7-year-old, boys: 159 girls:41) diagnosed as ADHD by medical specialists based on the standard of DSM-IV diagnosis and their control group's 177 children(boys: 138 girls:39), the mineral concentration of samples was measured through ICP-MS and compared. And correlations between toxic minerals and essential minerals in human bodies among patients group was analyzed. All the toxic minerals(Pb, Hg, Al, Cd, As) of hairs analyzed in the study showed more higher range of concentration in patients group in comparison with their control group. Among them, the concentration of Pb(3.27 $\pm$ 3.82 ppm) and As(0.16 $\pm$ 0.15 ppm) in patients group were significantly high compared to their control group. And in this study Pb among toxic minerals showed negative correlation with Zn(r = -0.43), Mg(r = -0.15) among essential minerals. Cd among toxic minerals showed negative correlation with Zn(r = -0.20) among essential minerals. As among toxic minerals showed negative correlation with Ca(r = -0.14) among essential minerals.

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  7. [국내논문]   의암호 유역에서 발생하는 자체생산 유기물 저감방안에 관한 연구   피인용횟수: 1

    허인량 (강원도 보건환경 연구원 ) , 이건호 (강원도 보건환경 연구 ) , 함광준 (강원도 보건환경 연구 ) , 최지용 (강원도 보건환경 연구 ) , 정의호 (강원도 보건환경 연구원)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 50 - 58 , 2004 , 1738-4087 ,

    초록

    The present study was designed to evaluate primary production organic matter in basin of lake around by execution of total maximum daily loading. BOD influent loading of Uiam lake was 2,819 kg/day, which was less then 28.3 percent, total effuluent loading as 3,619 kg/day, in comparision with BOD, total nitrogen influent loading was 4,681 kg/day, which was less then 10.0 percent, total effuluent loading as 5,150 kg/day. But in case of total phosphors influent loading was 73.3 kg/day, which was more then 34.2 percent, total run off loading as 48.3 kg/day. The result of survey reduction plan of primary production organic matter in basin of lake around which objectives of abstract is as follows. First plan was reduction of primary production organic matter by moving the outlet of municipal wastewater treatment center from present place to lake downstream. Secondary plan was improvement by diffusion type of outlet municipal wastewater treatment center. The third plan was reduction of environmental impact by passing and storing of municipal wastewater. Finally plan was decline water surface level which was present hydrouric retention time was reduction from 7.6 day to 6.0 day per meter.

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  8. [국내논문]   정수처리공정에서 bisphenol-A의 제거에 관한 연구   피인용횟수: 2

    김혜리 (수자원공사 ) , 이윤진 (건국대학 ) , 박선구 (국립환경연구 ) , 남상호 (건국대학교)
    韓國環境保健學會誌 = Journal of environmental health sciences v.30 no.1 = no.77 ,pp. 59 - 64 , 2004 , 1738-4087 ,

    초록

    This study was carried out to investigate influencing factors of bisphenol A(BPA) removal characteristic in conventional water treatment systems to be connected with coagulation, sedimentation, filtration and disinfection. The result are summarized as follows; In BPA removal, optimal doses of PAC, alum, ferric chloride were 7.5 mg Al/L, 10.0 mg AI/L, 15.0 mg Fek. PAC was most effective coagulant to remove BPA. In coagulation process, BPA removal efficiency were increased about 2% by adjusting pH of raw water as 6. At temperature rise 1 $0^{\circ}C$ , BPA removal efficiency were increased 0.94%. but BPA removal efficiency in sand filtration process were under 1 %ie, so that BPA was almost not removed. At free chlorine dose 1, 2 mg/L, the reaction rate constant k in the BPA removal have been calculated to be 0.397, 0.953 min $^{-1}$ . At free chlorine dose 1, 2 mg/1-, degradation reaction of BPA was completed during 10 min and BFA removal efficiencies were 97.66, 99.99% at this time.

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