고도산화공정을 이용한 몰리브덴(Mo) 용해 반응에 관한 연구

洪宗淳 동남보건대학 2002 論文集-東南保健大學 Vol.20 No.1

In the tungsten industry as light source material, tungsten filament, which was used as light source material, could form after molybdenum wire, which was used as the center supporter for coil hape tungsten wire. was removed. The purpose of this study is to develop a new process named "hydrogen peroxide dissolution method". This process uses hydrogen peroxide. which is harmless to human body and oxidizes molybdenum wire selectively. The advantages of the hydrogen peroxide dissolution method were no discharge of noxious matter when dissolution of molybdenum wire which was used as the center supporter, easy reactions in room temperature complete recovery of dissolved molybdenum. This study aimed at gathering the basic data of molybdenum wire dissolution-recovery process and proposing the reaction condition of molybdenum wire dissolution-recovery process and the factors influencing those reactions. This process uses advanced oxidation processes, for the quantity of hydrogen peroxide decrease The results were as follows: 1.An incandescent electric lamp type: FL type: A standard of commodity (P.W.: 19± 1.0㎎, C.R.: 4.5±0.3Ω) 1) Only hydrogen peroxide treated: Reaction Time: 65Min., P.W.: 18.60㎎. C.R.: 4.60Ω 2) Advanced oxidation processes (70% of H₂O₂): Reaction Time: 64Min., P.W.: 18.61㎎, C.R.: 4.61Ω 2. A Fluorescent lamp type: GLS type: A standard of commodity (P.W.: 11.8±0.2㎎. C.R.: 65±1.5Ω) 1) Only hydrogen peroxide treated: Reaction Time: 72Min.. P.W.: 11.88㎎, C.R.: 65.62Ω 2) Advanced oxidation processes (70% of H₂O₂):: Reaction Time: 71Min.. P.W.: 11.88 ㎎. C.R.: 65.63Ω

고도산화단위공정에 의한 정수처리에 관한 연구

홍종순 동남보건대학 2004 論文集-東南保健大學 Vol.22 No.2

In this study, two expriments in pure water treatment through the unit processes of advanced oxidation were proformed, the batch reactor experiment which uses ozone and experiment which uses hydrogen peroxide.

GNC용액을 이용한 음식물 쓰레기처리장에서 발생되는 악취 규제물질 제거 효과에 관한 연구

홍종순,김재우,Hong, Jong-Soon,Kim, Jae-Woo 대한환경위생공학회 2007 대한환경위생공학회지 Vol.22 No.2

It disposes positively in the air pollution damage which is serious, in order help period the place where it improves the quality of existence and life of the local residents. It removed the offensive odor regulation material and the technique it will be able to prevent to sleep it researched it did. After scattering the GNC solution which develops the offensive odor regulation material which occurs from the food and trash treatment plant which is located to the S from the H, company after scattering the GNC solution which it develops collection it did a control criminal record control kind air and it analyzed. In this study, we investigated the emission concentrations of offensive odorous compounds of hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide, trimethylamine, formaldehyde, acetaldehyde, propionaldehyde, buthylaldehyde, iso-valeric aldehyde, n-valeric aldehyde, ammonia. The concentrations of odorous compounds are determined by gas chromatography, HPLC and uv-vis spectroscopy. Hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide were not detected at any point examined.

간호원의 직무 만족도와 지각향성 및 근두 성적과의 상관관계

홍종순 가톨릭대학 (가톨릭신학대학) 대학원 1987 가톨릭大學醫學部 論文集 Vol.40 No.1

과산화수소와 촉매를 이용한 철(Fe)선 용해반응에 관한 연구

홍종순 동남보건대학 2004 論文集-東南保健大學 Vol.22 No.2

To produce filaments for the use of fluorescent materials. coiled tungsten must be manufactured. In its manufacturing, this study applies the new clean technology. that is, the method of hydrogen peroxide dissolution which uses hydrochloric acid and sulfuric acid as its catalyst, in the process of dissolving iron-wire which is used as the main supporter of tungsten manufacturing.

혐기성소화 시 발생되는 H₂S 감소에 관한 연구

홍종순(Jong-soon Hong),김재우(Jae-woo Kim) 대한환경위생공학회 2009 대한환경위생공학회지 Vol.24 No.4

In the organic waste, food waste is the most difficult controls. In the study, food waste was treatmented to removal only the dockage. To decrease the hydrogen sulfide(H₂S) in the produced biogas, iron chloride put in the anaerobic digester. Respectively treatment quantity of the food waste, content of the methane(CH₄) gas in the biogas, produced gases quantity, put in the quantity of the Iron chloride, pH, TS, Alkalinity, VFA, Ammonia. The results obtained from the experiment are as follows: 1. The produced biogases quantity/the treatment quantity of the food waste was 83.82~129.41㎥/ton. 2. The content of the hydrogen sulfide(H₂S) in the produced biogas is below of the 500ppm. The iron chloride put in the anaerobic digester. 200~300㎏ of the iron chloride put in the anaerobic digester at the steady-state. 400~850㎏ of the iron chloride put in the anaerobic digester at the unsteady-state. 3. Factor of the operator was the pH: 7.7~8.4, content of mathane: 55~65%. 4. TS(total solid) of the digestor sludge was 17~20%, Alkalinity was 38,500~41,750ppm, VFA(Volatile Fatty Acids) was 2,800~2,420ppm, Ammonia was 4,300~3,650ppm.

뇌허혈손상모델에서 HPLC를 이용한 Agmatine의 정량

홍종순(Jong Soon Hong),전 혁(Hyug Chun),정효석(Hyo Seok Jeong) 김재환(Jae Hwan Kim),이원택(Won Taek Lee),박경아(Kyung Ah Park),이종은(Jong Eun Lee) 대한해부학회 2003 Anatomy & Cell Biology Vol.36 No.4

아그마틴 (agmatine)은 포유동물의 조직에서 넓게 분포된 물질로, 뇌허혈시에 신경보호작용을 나타낸다. 본 연구에서는 마우스 중간대뇌동맥결찰술(mouse MCAO) 모델에서 아그마틴의 신경보호작용과 변화량을 비교, 관찰하고자 하였다. 뇌허 혈 손상시 아그마틴의 영향을 조사 하기 위해, 실험대조군(MCAO 후 saline 투여)과 중간대뇌동맥 결찰술을 시행한 후 아 그마틴을 투여 (co-injected group)하고, 0, 2, 3, 4, 7, 24시간 후 실험동물을 실험에 사용하였다. 각 실험군 당 3마리 이상의 동물을 사용하였고, 아그마틴의 투여량은 일회 100 mg/kg을 복강으로 투여하였다. 실험대조군에는 중간대뇌동맥결찰술 후 생리식염수를 투여한 것을 TTC염색을 하여 확인한 결과 대뇌의 손상을 입은 것을 확인할 수 있었다. 허혈 손상시 아그마틴의 투여로 뇌경색 크기가 현저하게 줄어 드는 것을 관찰할 수 있었다. 따라서 투여한 아그마틴에 의해 생체 내에서 아그마틴의 양의 변화를 살펴보기 위하여 HPLC를 사용하여 정량한 결과, 실험대조군의 경우 아그마틴의 양은 혈관 폐색기간동안 계속해서 양이 증가하였다가 재관류가 시작되면서 양이 감소하기 시작하여 재관류 2시간째에는 정상 수준으로 감소하나, 재관류 24시간 후에는 다시 아그마틴의 양이 증가하였다. 반면, 아그마틴 투여군에서는 다시 증가하지 않았다. 이 결과는 뇌허혈 손상시 아그마틴의 신경보호작용과 연관이 있을 것으로 사료되며, 주변부에서의 아그마틴변화량이 줄 무늬체와 대뇌겉질에서보다 유의하게 높게 나타났다 (⁄1 h after 2 hours of MCAO). Agmatine, a widely distributed molecule in mammalian tissues, shows neuroprotective effects in brain ischemia. We describe the neuroprotective effects of agmatine in the mouse MCAO model and the quantitative change of agmatine in ischemic injury. Brain ischemic injured mice were injected with agmatine (100 mg/kg of mouse, IP). Agmatine significantly reduced the infarct area after MCAO. Despite the similar patterns of agmatine change observed in control or agmatine injected animals, the agmatine levels of the penumbra were significantly higher than those of the striatum and the cerebral cortex during the early period (⁄1 hour after 2 hours of MCA occlusion). This suggests that the early period, during which agmatine levels increase in the brain, is the crucial period in terms of neuroprotective effect during ischemia.

건식단상혐기성소화조 장ㆍ단기 운영의 비교연구

홍종순(Jong-soon Hong),김재우(Jae-woo Kim),신대윤(Dae-yewn Shin) 대한환경위생공학회 2008 대한환경위생공학회지 Vol.23 No.4

In this study. a dry single-phase anaerobic digestion process (Dranco system) was investigated to evaluate the optimum operational conditions. Several factors such as injection rate of organic waste. biogas production, CH₄ content in the biogas, pH of the sludge, NH₃-N and VFA concentration were investigated based on the operation of the digestion process for 2 months (short term) and 8 months (long-term). The operation results showed that a small quantity of food waste should be injected every week' and that a 10% increase of the microorganism injection rate should be needed. However. normal operation was conducted after 11 weeks based on the designed quantity. The CH₄ content in the biogas was high at the beginning and the end of the food injection. However, it was low during week days. When the biogas production was high, the CH₄ concentration was low. The biogas production increased with an increase of the injection rate. 100㎥/ton of biogas was produced from normal operation of the digestion process based on the designed quantity. The pH values of the digestion tank based on short-term operation ranged from 8 to 8.5. However. the pH values ranged from 7.45 to 8.15 after 4 weeks of long-term operation. The NH₄-N concentration of short-term operation ranged from 4.500 to 5.500 ppm and it gradually decreased to 2.000ppm after normal operation was commenced. For long-term operation. it was 5.000ppm initially and 3.800ppm after normal operation was commenced. The VFA concentration of sludge was less than 900ppm and 2.500ppm for short and long-term operations. respectively. after normal operation. Overall, the differences between sludge pH, NH₃-N and VFA concentrations may be due to the different types of microorganisms and the digestion ability of the microorganisms which exist in theaccumulation of non digested organics. Moreover. it may be also caused by the type of food waste. Further investigation is needed to confirm these relationships.

몰리브덴 용해액에서 금속의 몰리브덴회수에 대한 청정기술에 관한 연구

홍종순(Jong-Soon Hong) 대한환경위생공학회 2005 대한환경위생공학회지 Vol.20 No.1

The process of reusing the treated water generated during this process and that of recovery of molybdenum from the excessive water were studied.<br/> The results were as follows.<br/> Molybdenum recollection<br/> 1. Reusing processing water generated after dissolving process on FL/20 type, the following were the remaining Mo.'s weights after the 1st, 2nd, 3rd, 4th, 5th, & 6th dissolutions respectively.<br/> 1) The result of measuring the quantity of Mo. in processing water(the 1st solving water) generated after the 1st dissolving Mo. process was 369g/ℓ<br/> 2) The result of measuring the quantity of Mo. in processing water(the 2nd solving water) generated after the 1st dissolving Mo. process reusing the 1st solving water was 627.3g/ℓ<br/> 3) The result of measuring the quantity of Mo. in processing water(the 3rd solving water) generated after the dissolving Mo. process reusing the 2nd solving water was 808.11g/ℓ<br/> 4) The result of measuring the quantity of Mo. in processing water(the 4th solving water) generated after the dissolving Mo. process reusing the 3rd solving water was 934.68g/ℓ<br/> 5) The result of measuring the quantity of Mo. in processing water(the 5th solving water) generated after the dissolving Mo. process reusing the 4th solving water was 1023.27g/ℓ<br/> 6) The result of measuring the quantity of Mo. in processing water(the 6th solving water) generated after the dissolving Mo. process reusing the 5th solving water was l085.29g/ℓ<br/> 2. The followings were the results of recollectings Mo. in processing water respectively generated after dissolving Mo. to produce complete goods df FL/20 type filament.<br/> 1) the percentage of recollecting Mo. in the 1st solving water was 93.0%<br/> 2) the percentage of recollecting Mo. in the 2nd solving water was 94.5%<br/> 3) the percentage of recollecting Mo. in the 3rd solving water was 95.5%<br/> 4) the percentage of recollecting Mo. in the 4th solving water was 96.0%<br/> 5) the percentage of recollecting Mo. in the 5th solving water was 96.2%<br/> 6) the percentage of recollecting Mo. in the 6th solving water was 96.4%<br/> 3. The followings were the results of analyzing, with ICP, holding quantities of Mo. in the 6 processing waters to produce FL/20 type filament after passing a 3 staged solid-liquid separator through, dehydrating and drying for more than 3 hours in a dryer to recollect solving Mo. in them.<br/> 1) the Mo. holding percentage in the 1st solving water was 76.6%<br/> 2) the Mo. holding percentage in the 2nd solving water was 76.6%<br/> 3) the Mo. holding percentage in the 3rd solving water was 76.6%<br/> 4) the Mo. holding percentage in the 4th solving water was 76.6%<br/> 5) the Mo. holding percentage in the 5th solving water was 76.6%<br/> 6) the Mo. holding percentage in the 6th solving water was 76.6%<br/> It was noted that with the number of times the recollecting Mo. percentage become higher, and in spite of much recollecting, without any large effect on the goods the solving water could be reused as the processing water. Because the collected Mo. holding percentages were more than 76%, it is considered they are very good one than Chinese Mo. ores with 50% degrees of purity, worthy of recollecting Mo.

과산화수소를 이용한 몰리브덴 ( Mo. ) 용해반응에 따른 청정기술 개발에 관한 연구 (Ⅱ) ( A Clean technology development using the Molybdenum dissolution reaction with hydrogen peroxide (Ⅱ) )

김재우,홍종순,신대윤 대한환경위생공학회 1999 대한환경위생공학회지 Vol.14 No.3