구치용묘갈명

허목,허목 전북역사문화학회 2007 전라북도금석문대계 Vol.1 No.-

해산어 양식수중의 암모니아성 질소의 오존분해에 관한 실험실적 연구

허목,오희부 제주대학교 해양연구소 1998 해양자원연구소연구보고 Vol.22 No.-

The dissolution and reaction of ozone in sea water with bromide has been tested. In order to obtain the optimal amount of injected ozone which is needed for the oxidation of ammonia in sea water, dissolved ozone concentration and temperature have changed into three conditions, which are 1, 1.5. 2.5 mg/L and 15, 20, 23℃ respectively. In this study, Ammonium nitrogen has been injected with different concentration of 0.5. 1, 1.5 and 2mg/L at each Run and at Run 3 which has high dissolved ozone concentration. 5 and 10mg/L of NH_(4)-N has been added. pH has decreased rapidly in ten minutes in accordance with denitrification of ammonium nitrogen. With increasing ammonium nitrogen concentration, it has decreased significantly within five minutes and then slowly. In the rate of 1-2.5mg/L of injected ozone concentration, the removal efficiency of ammonium nitrogen has increased clearly with increasing ozone concentration. In the course of denitrification, the variation of nitrate nitrogen and nitrite nitrogen has scarcely been measured. This is considered that ammonium nitrogen has been denitrified by a complicated mechanism rather than by a simple removal through its oxidation. and has been emitted into the air as nitrogen gas in a short time.

생도라지의 저장온도에 따른 물리적 특성 변화

허목,구성철,한종원,김미란,이상훈,이우문,장재기 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.05

Background : Platycodon grandiflorum has been used as famous medicinal vegetable and traditional medicine in Korea. Platycodon grandiflorum is used more for vegetable than it is used as a medicine. Proper storage conditons are required for distribution of Platycodon grandiflorum as vegetables. The purpose of this study was to find the appropriate storage temperature. Methods and Results : 2-years old Platycodon grandiflorum cultivated in Herbal Crop Research, RDA Eumseong was used. They were packed with plastic container box of 45 × 70 × 30 ㎝ and then stored at –2℃, 2℃, 5℃, 25℃, humidity 80 - 82%. During the storage, hardness, L a b values, weight loss, decay rate were measured every 30 days as quality indices. During the storage period, L value decreased but a and b values increased and same pattern was observed at all storage temperatures. Hardness decreased and same pattern was also observed at all storage temperature. Under constant humidity conditions, weight loss was larger at higher temperature. The higher the temperature, the larger the deviation at weight loss. There were little decay but 25℃ temperature stored showed that dacay rate was higher with time over. Conclusion : The favorable temperature for storage is –2℃ - 2℃ while maintaining constant humidity.

서귀포시 축산폐수의 발생특성에 관한 연구

허목,이용두,이민규 제주대학교 환경연구소 1993 환경연구논문집 : 제주대 Vol.1 No.-

As a part of basic investigation and research the present condition and characteristics of livestock wastewater production in Sogwipo City is accessed. Based on the current data a trend of the livestock wastewater production for the furture is predicted. This is our purpose to facilitate this report as a basic guide-line for the furture livestock wastewater treatment. The result of this study are summarized as follows : 1. Breeding households of livestocks (swine. beef cattle, chicken) decrease every year, but the number of heads per household are increased each year. 2. BOD-loading per day of beef cattles wastewaters investigated 59.2kg. and pollution loadings are suspected 38.3 BODkg/day at 2001 year. 3. The quanity of swine wastewaters were counted 12.4ℓ/head·day, BOD-loadings were reached 45.6kg and suspected same values at 2001 year

산화·환원 전위 변화에 따른 도시폐기물 매립지 침출수의 수질 변화 특성

허목,Huh, Mock 유기성자원학회 2001 유기물자원화 Vol.9 No.1

미분해 유기물이 다량 존재하는 매립초기에 발생되는 침출수는 미생물에 의한 혐기성 소화가 진행됨에 따라 침출수중의 유황성분이 유황환원세균 등에 의해 황화물이온으로 환원되고, 이것이 금속이온의 양보다 과잉으로 많을 경우 sol화된 금속황화물이 되어 침출수를 검은색으로 변색시킴을 알 수 있었으며, 이들은 검은색의 입자상 물질을 형성하여 침전물을 생성함을 알 수 있었다. 따라서 이와 같은 침출수 처리를 위해 과잉의 황화물이온을 당량이상의 금속이온과 반응시킨다면 부동태화시킬 수 있다는 향후의 경제적 효율적인 처리를 위한 중요한 가능성을 확인할 수 있었다. It can be known that from leachate generated in the initial stage of landfill there are a lot of undecomposed orgainc materials, its sulfur component reduces to sulfide ion by sulfur reducing microorgarnisms as an anaerobic digestion proceeds, the sulfide ion makes the leachate discolor to black by forming metal sulfide sol, on condition that much more equivalent of sulfide ion than that of metal ion is present, and the metal sulfide sol can be generated to the precipitates by forming black-colored particulates. Therefore, we can confirm the important possibility for the economic and efficient treatment of leachate that it can be passivated, provided that much more equivalent of sulfide ion is present in the reaction of sulfide ion and metal ion.

친환경제제를 이용한 일천궁 흰가루병 발생 억제효과

허목,안태진,이정훈,김영국,박충범,차선우 한국약용작물학회 2014 한국약용작물학술대회 발표집 Vol.2014 No.05

도서지역 발생 생활폐기물의 물리,화학적 특성

허목,고기석 한국폐기물자원순환학회 2004 한국폐기물자원순환학회지 Vol.21 No.2

SBR에서 아세트산을 이용한 양돈폐수의 질소 인 제거 특성

허목,강진영 유기성자원학회 2004 유기물자원화 Vol.12 No.1

This study was performed : 1) to find the suitable HRT(hydralic retention time), 2) to evaluate the effects of the ratio of mixing/aeration time and injection time of acetic acid, for the removal of organics, nitrogen and phosphorus in swine wastewater by SBR(sequencing batch reactor process), which is one of the biological treatment process.The result of this study were summarized as follows : (1) As the ratio of mixing/aeration time was higher, NH4+-N removal efficiency was increased and it was increased with increasing injection time of acetic acid because nitrification was affected by denitrification microbes propagation when injection time of external carbon soruce was shorted. T-N removal efficiency was increased with increasing the ratio of mixing/aeration time and injection time of acetic acid. (2) The T-P removal efficiency showed a great difference in each operating condition, and it was increased with increasing the ratio of mixing/aeration time increased and when the injection time of acetic acid was shorted because denitrification was done with effect by denitrification microbes propagation. (3) The highest removal efficiency of organic and nitrogen were obtained by the operating condition of Run 4-1(the ratio of mixing/aeration time : 16.5/5.5, injection time of acetic acid : 15hours) and T-P were obtained by the operation condition of Run 4-2(the ratio of mixing/aeration time : 16.5/5.5, injection time of acetic acid : 3hours), and efficiency(effluent concentration)of BOD5, CODMn, CODCr, T-N and T-P in the treated water was 96.1%, 87.7%, 90.6%, 86.6% and 84.5%, respectively. 본 연구는 생물학적 처리공정의 하나인 SBR을 이용하여, 양돈폐수중의 유기물과 질소, 인의 동시제거를 목적으로 적정의 수리학적 체류시간(HRT)과 반응기간 중 교반/폭기 시간비(M/A) 및 적정의 교반/폭기 시간비에서의 외부탄소원의 주입기간(Injection Time)에 따른 변화에 따른 실험 결과로부터 다음과 같은 결론을 얻었다. (1) NH4+-N의 제거효율은 M/A가 0.0/22.0일 때(Run 1) 가장 효율이 좋았으며, 외부탄소원을 주입했을 경우 탈질균의 증식으로 인해서 질산화가 잘 이루어지지 않기 때문에 주입시간이 길어질수록 증가하였다. T-N의 제거효율은 M/A가 증가할수록, 외부탄소원 주입시간이 길어질수록 증가하였다.(2) T-P의 제거효율은 운전조건에 따라 큰 차이를 보이고 있으며, M/A가 증가할수록 제거효율은 증가하였으며, 외부탄소원의 주입기간을 두고 보았을때, 주입기간을 짧게 할 경우 탈질균의 증식으로 인해서 탈질이 더 효율적으로 이루어지기 때문에 그 제거효율은 증가하였다.(3) 총 반응시간 22시간 중 M/A 16.5/5.5, 무산소 기간의 16.5시간 중 15시간동안 외부탄소원을 주입했을 경우(Run 4-1)의 운전조건에서 유기물 및 질소 제거에 가장 효율적이었으며, 인의 경우 무산소기간의 16.5시간중 3시간 동안 주입한 경우(Run 4-2)인 경우가 가장 효율적이었다. 각각의 효율을 살펴보면, CODCr, CODMn 그리고 BOD5인 경우, 각각 90.6%, 87.7% 그리고 96.1%이고, T-N의 경우 86.6%, T-P인 경우는 84.5%로 나타났다.

간접폭기형 침적생물여과장치(INSUB)를 이용한 오수처리 특성

허목,강진영,김광진,Huh, Mock,Kang, Jin-Yuong,Kim, Gwang-Jin 유기성자원학회 2003 유기물자원화 Vol.11 No.2

본 연구는 오수중의 유기물 및 질소 인의 동시제거를 위한 오 폐수 고도처리장치인 간접폭기형 침적생물막여과장치(Indirected Aerated Submerged Biofilter : INSUB)를 개발하기 위하여 실험실적 모형실험을 수행하였다. INSUB에서 오수를 처리함에 있어서, HRT 18시간, 공탑속도 42.5m/hr, 충전율 40%인 경우가 실제로 경제적인 효율을 고려하였을 때, 가장 효율이 좋았다. 각각의 제거효율을 살펴보면, $COD_{cr}$, 90.6%, $COD_{Mn}$ 85.3%, $BOD_5$ 95.0%, T-N 52.3% 그리고 T-P 56.8%로 나타났다. 질소 인의 고효율처리를 위해서는 전탈질공정에 의한 산화질소의 제거를 위해 무산소, 호기조의 조합 등에 의한 system의 일부 다단화가 필요함을 확인할 수 있었다. This study was carried out to develop INSUB(Indirected Aerated Submerged Biofilter) which can remove organics, nitrogen and phosphorus with an advanced treatment system. The results were as followed in laboratory model experiment. As for treatment of sewage, when economical efficiency was considered in practice, the highest removal efficiency was at 18hr of HRT, 1.017m/hr of superficial velocity and 40% of media packing ratio. Each removal efficiency for $COD_{cr}$, $COD_{Mn}$, $BOD_5$, T-N, and T-P was 90.6, 85.3, 95.0, 52.3 and 56.8%. To remove the nitrogen and phosphorus With high efficiency, first of all, denitrification have to be completed, then uptake of phosphorus have to completed. Therefor, mixture of anoxic and aerobic reactor was necessary for the high removal efficiency of nitrogen and phosphorus in INSUB.

생물접촉여상탈취장치를 이용한 분뇨처리장의 악취제어

허목 한국폐기물자원순환학회 1992 한국폐기물자원순환학회지 Vol.9 No.2