국산 Zeolite에 의한 염색폐수 처리에 관한 연구

박영태,도갑수 慶北工業專門大學 1979 論文集 Vol.16 No.-

The adsorption of C.O.D in the waste water from the dyeing mill was studied to develop effective adsorbent by using zeolite mined out Yeung ill, Korea. The amount of C.O.C. adsorbed by the adsorbent was measured at constant time interval for the whole operationg runs. The effect of particle size of zeolite used, initial concentratiom of C.O.D in waste water were investigated, and the kinetics and the equilibriun of adsorption were discussed from experimental data. In the kinetic study, the adsorption by zeolite is known to be controlled by intraparticle diffusion and, interier diffusion, and the adsorption equilibrium concentration of C.O.D. on zeolite is nearly equal to that of granular active carbon. Therefore the Yeungill zeolite could be effectively used as economic adsorbent in order to treat waste water of the dyeing industries.

흡착에 의한 식염폐수의 처리

박영태,도갑수 慶北工業專門大學 1980 論文集 Vol.18 No.-

식품공장에서 배출되는식염폐수는 주로 채소를 소금물에 절이는 과정에서 생겨나며, 이 폐수는 생물학적으로 분해 불가능한 염과 유기고체의 혼합물로 되어 있으므로 응접 및 생물학적 처리만으로는 좋은 결과를 얻을 수 없다. 또한 소금의 농도가 10% 이상을 유지하므로 이 소금을 재생시키는 것이 바람직하다. 본 연구는 식염폐수를 공장에서 직접 채취하여 모래 층에서 여과한후 흡착질용액으로 하고 흡착제로 zeolite와 입상활성탄을 사용하여 회분흡착실험을 통하여 흡착평형과 흡착능 및 식염폐수의 재상용 능성을 조사하였다. 평형에서의 흡착량은 입상활성탄이 6.1㎎/g adsorbent, zeolite가 5.5㎎/g adsorbent가 되었다. 실제 공장에서 쓰여질 흡착탑의 설계를 위하여 fixed bed에서 연속실험을 했으며 유량과 폐수의 초기농도 및 흡착제 종류에 따른 break through curve 를 얻어 설계를 위한 제반인자를 설정하고 흡착 process를 제안하였다. 제안한 process의 고정투자비를 각 흡착제별로 계산하고 경제적인 타당성을 고찰한 결과 폐수의 량을 20㎥/day로 가정했을때 고정투자비 기준으로 약 0.12원/liter SPB 이 되어서 경제성이 있음을 알았다. A continuous process ofr recovery of spent pickle brine(SPB) by preliminary filteration on a sand bed to remove suspended solids, followed by adsorption treatment in an granular activated carbon and zeolite-sand micture column to remove colour and odor causing organic compounds is investigate. Batch isotherm adsorption experiments revealed that the adsorption capacity of the SPV-adsorbent system is respectively 6.1㎎ total organic carbon per gram granular activated carbon and 5.5㎎ total organic carbon per gram zeolite a t25℃. It is estimated that a low capital investment of 0.12 won per liter of recycled treated SPB is required for a 20㎥/day capacity. This cost is much lower than that of fresh salt, and thus will be defrayed by savings on recycled salt.

증발잔류 광물의 광물학적 연구

박천영,박신숙,김성구,조갑진,임성수 조선대학교 에너지.자원신기술연구소 2003 에너지·자원신기술연구소 논문지 Vol.25 No.1

This study has focused on mineralogical and geochemical characteritics of evaporated minerals from the mine waters and on variation of constituents in mine water during the evaporation The evaporated minerals are shown in mine waters at the field. In order to form of evaporates in the laboratory, mine waters were sampled from the abandoned mine area(HS, LG and BJ) and were air dried in laboratory for room temperature. During the evaporation of mine waters, TDS, EC values and the concentration of major and minor ions increased, whereas dissolved oxygen(DO) values decreased with the sampling time. Gypsum, epsomite, kaolinite, dolomite and illite were identified in BJ sample, gypsum and epsomite were observed in LG sample, and gypsum, epsomite and vermiculite were founded in HS sample by x-ray powder diffraction studies. The infrared spectra for evaporated minerals show major absorption banded due to OH stretching, adsorbed molecular water and sulfate stretching, respectively. Evaporated minerals were heated at 65, 150, 250 and 350℃ for 1 hour in electrical Furnaces. Gypsum transformed the bassanite at 150℃ heating temperature and epsomite transformed the hexa-hydrite at 65℃, and then converted the kieserite at 250℃. With increasing heating temperature, the intensity of absorption OH band(3407 11㎝^(-1)), adsorbed molecular water band (1654.39㎝^(-1)) and sulfate stretching band (1113.46㎝^(-1)) were decreased, whereas sulfate stretching bands(668.35㎝^(-1) and 603.85㎝^(-1)) were relatively increased in IR due to dehydration.

농산물 소독과정에서 브롬화메틸에 노출된 근로자에게 발생한 신경병 2례

박태혁,김정일,손지언,김종국,김형수,정갑열,김준연 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.4

목적 : 농산물 소독과정에서 브롬화메틸에 노출된 근로자에게 발생한 신경병 2례 보고. 방법 : 피로감, 전신무력감, 어지럼증, 보행장애 등의 증상을 주소로 내원한 브롬화메틸을 사용하여 방역작업에 종사하는 건강한 20세와 18세의 근로자를 대상으로 혈액검사, 신경정도 및 근전도검사, 뇌자기공명영상 등의 임상검사와 작업력조사를 시행하였다. 결과 : 1례에서 뇌자기공명영상에서 연수와 소뇌의 양측 측충부의 고신호강도가 관찰되었고 11일 후의 추적조사에서 동일 부위의 고신호강토가 감소된 소견이 관찰되었으며 뇌병증으로 최종 진단되었다. 다른 1례는 신경전도검사에서 다발성 신경병 소견과 뇌유발전위검사에서 우측 하부 뇌간부위 병소가 관찰되었고 뇌병증 및 말초신경 병으로 최종 진단되었다. 결론 : 근로자들의 증상은 소독과정에서 브롬화메틸 노출로 인한 신경 병으로 판단되며 훈증소독과방역작업에 종사하는 근로자들의 실태조사와 안전에 대한 대책이 시급하다고 하겠다. Objectives : To report two cases of neuropathy due to methyl bromide intoxication. Methods : Workers, engaged in the fumigating process, complained fatigue, general weakness, ataxia, and hypersomnia. We evaluated them with blood tests, neurophysiologic studies and MRI and investigated their occupational history. Results : Increased signal intensities were found in the medulla oblongata and paraver mian of cerebellum in MRI and after 11 days, high signal intensities were reduced in the following MRI. In the other case, polyneuropathy and rlght lower brainstem lesion were observed In the NCV and BAEP studies. Conclusions : We confirmed that worker's symptoms were related to methyl bromide exposure in the fumigation. It is necessary that we should evaluate present condition of fumigating process and prepare appropriate methods to protect workers engaged in the fumigation.

혈중 및 호기 일산화탄소를 이용한 일산화탄소 헤모글로빈 농도간의 관련성 연구

김형수,박태혁,손지언,정갑열,김정만,김준연 동아대학교 2001 大學院論文集 Vol.26 No.-

This study was conducted to find a correlation between blood COHb and calculated COHb with expiratory air and related variables such as occupational and smoking factors. Author selected 69 healthy workers in 8 workplaces suspected CO exposure. Basic informations were collected by self-reported questionnaire and medical history taking. Author measured Indirect COHb concentration with expiratory air using Micro II-Smokerlyzer and blood COHb concentration using Oxymeter. The results of the study were summarized as follows : 1. In the smoker, mean blood COHb and calculated COHb with expiratory air were 2.21±0.98% and 2.27±0.97 %, and there was not a statistically significant difference. In the non-smoker, mean blood COHb and calculated COHb with expiratory air were 0.42±0.43 % and 0,65±0.30 %, and there was also not a statistically significant difference. 2. There were positive correlations between blood COHb and calculated COHb with expiratory air in both the smoker (r=0.91, p=0.0001) and non-smoker (r=0.73, p=0.0001). 3. In the smoker, the factors affected COHb were total smoking index (Pack × years) and passed time after the last smoking. 4. In the nonsmoker, the parking and driving groups had higher COHb concentration than others (p<0.05). In conclusion, there was no significant difference between indirect COHb concentration with expiratory air using Smokerlyzer and blood COHb concentration and there was a highly significant correlation between indirect and blood COHb concentrations. Therefore indirect COHb concentration with expiratory air is a useful screening method for CO exposure. Author suggest the resection of smoking during at least 90 minutes before measuring COHb concentration in order to exclude smoking effects.

Paraquat 중독환자의 초기검사로서 sodium dithionite를 이용한 소변내 paraquat검출의 임상적 의의

윤갑준,임경수,이진웅,김영식,이부수,박덕우,김선만,이강현,황성오,안무업 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

Background : Mortality from paraquat intoxication depends upon plasma paraquat concentration. To know the severity of paraquat intoxication is important for directing therapeutic modality and predicting prognosis. Sodium dithionite test for urinary paraquat provides an easy and simple method to determine the severity of paraquat intoxication in emergency department. purpose : To determine whether the result urinary paraquat test by sodium dithionite can predict outcome in patients with paraquat intoxication in emergency department. Subjects : 48 patients(male 31, female 17, mean age 37 years) who had exposure to paraquat and presented within 24 hours after exposure. Result : Thirty five patients were positive in paraquat urine test and thirteen patients were negative. Clinical manifestations were more severe in positive patients than in negatives. Complication was much more in positives than in negatives. 28 of 35 patients(80%) in positives and 2 of 13 patients(15%) in negatives died. Conclusion : Positive test for urinary paraquat is associated with high mortality and morbidity from paraquat intoxication, and qualitative test for urinary paraquat by sodium dithionite is an useful method to determine the severity of paraquat intoxication in emergency department.

바운스드롭점프에 있어 下肢關節의 力學的 일量

裵永相,裵正幸,徐彰翊,金甲求,朴晟秀 啓明大學校 生活科學硏究所 1996 科學論集 Vol.22 No.-

The purpose of this study was to investigate jumping ability in order to establish proper methods of strength and power training for jumping as pertains to sports. Jumping in sports requires higher jumping in a short amount of time. Eight skilled female modern dancers were instructed to drop jump onto a force platform with both legs from four different heights(15,30,45,60cm). They were filmed from the side with a high speed camera (100fps). The power developed at the ankle, the knee and hip joints was computed by multiplying the moment of force by the joint angular velocity. Mechanical energy was absorbed by the eccentric contraction of the ankle and knee joint muscles during phase of downward movement. Mechanical energy absorption rate by eccentric contraction related to the knee joint muscle at high load intensity was relativly higher than low load intensity. It required the energy absorption by the eccentric contraction of knee joint muscles in order to reduce take off time in phase of downward movement. In push off phase, it projected the body into the air by the concentric contraction of ankle and knee joint muscles.

복내바이오파크 인공습지의 오염물질 처리효율 평가

서동철(Dong-Cheol Seo),강세원(Se-Won Kang),김현욱(Hyunook Kim),한명자(Myung-Ja Han),임병진(Byung-Jin Lim),박종환(Jong-Hwan Park),김갑순(Kap-Soon Kim),이영재(Yeong-Jae Lee),최익원(Ik-Won Choi),허종수(Jong-Soo Heo),조주식(Ju-Sik Cho) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.2

주암호 상수원 상류지역에 위치한 복내 바이오파크 인공습지의 수생태학적 효율 향상을 위한 관리 방안을 제시하기 위하여 시기별, 계절별 및 오염물질 부하량별 수처리 효율을 평가하였다. 유입원수의 BOD, SS, T-N 및 T-P의 함량은 각각 1.87-4.23, 5.2-24.0, 4.94-15.59 및 0.10-0.75 mg L<SUP>-1</SUP> 범위이었으며, 연평균 처리효율은 BOD, SS,T-N 및 T-P가 각각 26, 43, 62 및 83%로서 BOD 처리효율은 낮았으나 T-N과 T-P 처리효율은 매우 높았다. 계절별 수처리 효율은 전반적으로 동절기에 비하여 하절기에 높았으며 T-P의 처리효율은 계절적인 차이 없이 비교적 일정하게 높은 처리효율을 보였다. 인공습지 구성시스템별 오염물질 부하량에 따른 오염물질 처리량은 BOD는 침강지> 습지조 > 마이크로폴, T-N과 SS는 습지조 > 침강지 >마이크로폴 순이었으며 T-P의 경우에는 습지 구성 시스템별 큰 차이 없이 비교적 일정한 처리량을 보였다. Boknae Bio-park is a free water surface constructed wetlands to remove non-point source pollution. Boknae Bio-park constructed wetlands (CWs) consist of forebay, wetlands (1<SUP>st</SUP>, 2<SUP>nd</SUP>, and 3<SUP>rd</SUP> wetlands), and micropool. The concentrations of BOD, SS, T-N and T-P in inflow were 1.87-4.23, 5.2-24.0, 4.94-15.59 and 0.10-0.75 mg L<SUP>-1</SUP> in Boknae Bio-park CWs from April to December in 2008, respectively. The removal rates of BOD, SS, T-N and T-P in Boknae Bio-park CWs were 26, 43, 62 and 83%, respectively. The removal rates of BOD and SS in the spring and summer were higher than those in other seasons. The removal rates of T-N and T-P on spring were slightly higher than those in other seasons. The amounts of pollutants removal in Boknae Bio-park CWs were higher in the order of forebay > wetlands > micropool for BOD, wetlands > forebay > micropool for SS and wetlands > forebay > micropool for T-N. The amount of T-P removal was not significant different in all areas.

한국어의 어원과 발상, 그리고 명명

( Kap Soo Park ) 국어교육학회 2014 國語敎育學硏究 Vol.49 No.3

The purpose of this study was to research for the etymology of Korean words in terms of ideation. The etymology of Korean words has never been properly studied till today, due to the scarce historical materials and the insufficient researches. This study has been executed with a main focus on the etymology of middle term, rather than the original etymology. Ideation is made mainly through 5 organs of sense. Naming and word-formation in the vocabulary of Korean language, especially the substantive of original Korean, are made most frequently by the ideation through the sense of sight; and less frequently through the auditory sense; but very rare through the other sense. For ideation and naming through the sense of sight, predominating is the sense of shape, over the others such as the color sense and the optic sense. Naming through the sense of shape may have 2 different categories such as shape and condition; or 10 different ones such as [1]distinctive characteristic, [2]place of residence, [3]direction, [4]material, [5]habit, [6]usage, [7]growth, [8]season and [10]sex. For sense other than sight, this study found some onomatopoeias and their derivatives, both through auditory sense; some adjectives, developed through the sense of taste; and few complex words are typically found using “~nae(~내) as like a suffix. For the sense of touch, the main stream is adjectives, through the sense of pressure.

현대소설 문장의 집필과정 - Sentence - Length 의 대수정규분포에 대하여 -

박갑수 ( Kap Soo Park ) 한국어교육학회 1972 국어교육 Vol.- No.18