입자도가 다른 제주 화산암 분말(Scoria) 급여가 돼지의 성장, 도체특성 및 분성분에 미치는 영향

양창범,고서봉,조원탁,한인규,Yang, C. B.,Ko, S. B.,Cho, W. T.,Han, In K. 한국축산환경학회 2005 축산시설환경학회지 Vol.11 No.2

Scoria의 입자도를 달리하여 양돈사료내 첨가급여시 돼지의 성장효과, 사료이용성, 도체 특성 그리고 분중의 주요 오염물질인 질소와 인의 함량에 미치는 영향을 비교하기 위하여 시 험을 실시하였다. 대조구(기초사료)와 대조구 사료의 $3\%$ 수준을 500, 1,000, 1,700 ${\mu}m$로 제조된 scoria로 대체하여 배합된 사료로 나누어 급여한 처리 등 모두 4처리를 두어 143일간 사양시험을 실시하였는데 각 처리당 3반복(반복당 male 4, 거세돈 3두)으로 총 84두의 이유자돈을 완전임의 배치하였다. 시험종료 후 전두수를 축협공판장(등급판정소)에서 돼지등급판정 기준에 의해 도체등급을 조사하였고, 육색은 Chromameter를 사용하였으며, 분중의 질소와 인의 함량은 A.O.A.C 분석법 (1990)에 따라 분석하였다. 이러한 방법에 의해 얻어진 결과를 요약하면 다음과 같다. 1. 자돈기에는 scoria 첨가구 모두가 대조구에 비해 증체량이 낮았고, 사료요구율은 높았으며 육성기에는 scoria 입자도 $1,700\;{\mu}m$ 급여구가 증체량 및 사료효율이 가장 높았고, 비육기에서는 $1,000\;{\mu}m$ 입자도 첨가구가 일당증체량이 높고 사료요구율이 낮아지는 경향을 보였다. 그러나 전기간($0{\sim}143$일) 동안을 비교하면 scoria 입자도 $1,000\;{\mu}m$가 증체량 및 사료효율면에서 $1,700\;{\mu}m$ 보다 유리하였다. 2. 도체중은 모든 scoria 첨가구가 유의적 (P<0.05)으로 높았으나, scoria 입자도간 차이는 없었다. 그리고 등지방두께는 처리간 차이가 없었고, 도체등급에서 A+B 등급인 상등급 출현율은 대조구에 비해 scoria 첨가구가 월등히 증가하였으며, scoria 입자도간에는 $500\;{\mu}m$가 A등급 출현율이 가장 높았다. 3. 돼지고기의 육색은 명도(L값)의 경우는 대조구가 약간 높았으나 $1,000\;{\mu}m$ 및 $1,700\;{\mu}m$ 입자도와는 유의적인 차이가 없었으며, 적색도(a값)는 scoria 입자도 $1,000\;{\mu}m$ 급여구에서 가장 높게 나타났고, 황색도(b값)에서는 처리간 차이가 없었다. 4. 분중의 총질소 함량은 육성기에서 scoria 입자도 $1,000\;{\mu}m$ 급여구가, 비육기에서는 scoria 입자도 $1,700\;{\mu}m$ 급여가 가장 감소효과가 컸고, 인의 함량은 자돈기에서 scoria 입자도간 차이는 없었으나, 육성기와 비육기에는 각각 $1,700\;{\mu}m,\;1,000{\mu}m$의 scoria 입자도에서 배설량 감소효과가 낮았다. The effect of different particle sizes of scoria inclusion in weanling-growing-finishing diets on growth performance and carcass quality was investigated in this study. Treatments were the control (basal diet), and 3 scoria treatments with different partical sizes (500, 1,000, 1,700 ${\mu}m$, respectively) in which $3\%$ of basal diet was replaced by scoria. This study was carried out for 143 days using 84 pigs. Each treatment has 3 replicates (4 gilts and 3 barrows per pen). 1. During nursery period, all scoria treatment levels showed poor Average daily gain (ADG) and feed efficiency compared to the control. During growing period, The ADG and feed efficiency of pigs fed the $1,000\;{\mu}m$ swine treatment tended to improve. For the whole growth period (d 0-143), $1,000\;{\mu}m$ scoria treatment showed significantly higher (P<0.05) ADG and feed efficiency than the $1,700\;{\mu}m$ scoria treatment. 2. Carcass weight was higher in all of scoria treatment levels Either the control (P<0.05), while backfat thickness was unaffected among treatments. Carcass Grade A or B grade appearance was more evident in all of scoria treatments compared to the control. 3. Hunter L value was numerically higher in the control while there was no significant differences among the control, $1,000\;{\mu}m$ scoria and $1,700\;{\mu}m$. Hunter a value was highest (P<0.05) in $1,000\;{\mu}m$ scoria, while Hunter b values were not influenced by the scoria treatment levels. 4. The different scoria treatment levels reduced N and P excretion. For growing period, $1,000\;{\mu}m$ scoria was most efficient in reducing N excretion, while during the finishing period, $1,700\;{\mu}m$ scoria was the best. The P excretion was affected by scoria particle size during growing-finishing periods rather than weanling period. The above findings indicated that the inclusion of different scoria partical sizes in nursery diet resulted to adverse effects on growth performance in contrast to the growing finishing diets wherein the growth performance and carcass quality were not affected. Finally, scoria regardless of particle size proved to be effective in reducing N and P excretion and can be considered an environment friendly mineral source for growing-finishing hog diets.

제주 스코리아(Scoria)를 이용한 철화 안료 개발 연구

김진희,오창윤 한국도자학회 2018 한국도자학연구 Vol.15 No.3

본 연구는 철화(鐵畵) 조성비를 기본으로 제주의 천연 지하자원인 스코리아(Scoria)를 이용한안료 개발을 진행하고 도예작업에 적용함으로써, 지역 재료의 활용성과 도예 장식기법의 새로운가능성을 제시하는데 목적이 있다. 제주도는 5회의 분출윤회의 시기와 총 79회 이상의 용암 분출로 생성된 화산섬이다. 화산 분출 과정에서 생성된 화산분출물(火山噴出物)은 다른 지역에서 찾아볼 수 없는 제주만이 갖는독특한 소재이다. 화산쇄설물(火山碎屑物) 중 스코리아(Scoria)는 화산폭발 과정에서 마그마가대기 중으로 방출되면서 형성된 것으로 적철석 계열의 산화철(Fe2O3) 색상과 비슷하며, 성분에서도 산화철(Fe2O3)이 다량 함유되어 있다. 산화철(Fe2O3)의 색상과 성분이 비슷하다는 점은 철화 조성비를 기본으로 스코리아(Scoria)를 이용한 철화 안료 개발 연구로 이어지게 하였다. 이처럼 도예 작업에서 지역성을 갖는 소재 탐색을 통한 연구는 그 지역을 상징화할 수 있고, 정체성을 확보할 수 있다는 점에서 긍정적인 영향을 미친다. 따라서 본 연구는 제주 서귀포시 표선면 가시리 붉은오름에 분포하고 있는 스코리아(Scoria) 를 연구대상으로 설정하고 다음과 같은 과정을 거쳐 철화 조성비를 기본으로 한 안료를 개발하여 도예작업에 적용하였다. 연구 과정은 첫째, 철분 함량이 비교적 높게 나타나고 있는 붉은오름 스코리아(Scoria) 시료(試料)를 채취하고 분쇄한 후, 입도차이에 따른 변화를 관찰하기 위해 분쇄한 시료를 채로 걸러내는 과정을 거쳤다. 둘째, 입도차이에 따라 걸러낸 스코리아(Scoria) 분말을 백색자기토와 6:4의 비율로 배합하여기본 안료를 개발하였다. 또한 안료 조성 비율에 따른 변화를 관찰하기 위해 6:4, 4:6, 7:3의 비율로 구분하여 철화 안료를 개발하였다. 더불어 더 고운 미립질의 철화 안료를 얻기 위해 볼밀(Ball Mill)을 사용하여 동일한 조건에서 분쇄 시간의 변화를 주어 실험하였다. 셋째, 시편을 일정한 두께와 크기로 제작하고 스코리아(Scoria)를 이용하여 개발한 철화 안료로 시문하였다. 이 과정에서 붓의 겹침 횟수에 따른 발색 정도와 변화를 확인하기 위해서 1회에서 3회로 구분하여 시문하였고, 전기가마를 이용하여 1250℃에서 9시간 30분 동안 산화소성한 후, 결과 분석을 하였다. 넷째, 시편 소성(燒成) 결과물을 입도차이와 조성 비율 변화, 볼밀을 사용한 시간 변화로 구분하여 그에 따른 특징을 비교·분석한 후, 이상적인 시료를 도출하고 제시하였다. 스코리아(Scoria)를 이용하여 개발한 철화 안료는 대체적으로 흑갈색계열의 색상이 나타났고 입도차이에따라 다른 결과를 보였으며, 모든 안료에서 다양한 특징이 나타났다. 또한, 붓의 겹침 횟수에따른 결과는 1회 붓칠을 했을 때 유약의 광택과 용융(熔融)상태가 좋게 나타났고, 철화에서와같은 번짐 효과는 적게 나타났다. 40목(目)의 거친 철화 안료는 시문과정에서 어려움이 있었지만 색상과 결정현상이 좋게 나타났다. 시문과정에서 이와 같은 특징이 반영된다면 철화기법과다른 독특하고 새로운 결과를 얻을 수 있을 것이라고 판단된다. 가장 이상적인 결과를 보인 시료는 150목(目) 채로 거른 스코리아(Scoria) 분말과 백색자기토를 7:3의 비율로 배합하고 2시간동안 볼밀을 돌린 철화 안료였으며, 시문과정에서 붓칠이 용이하다는 결과를 도출할 수 있었다. 마지막으로 개발한 철화 안료를 접시에 시문하여 적용함으로써, 도예 작... The objective of this study is to suggest the utilization of local materials and the new possibility of materials for pottery decoration technique, by developing the pigment with the use of scoria which is the natural underground resource of Jeju based on the composition ratio of iron, and also applying it to the pottery work. Jeju-do is a volcanic island formed by the eruption of lava for more than total 79 times and five times of eruption cycle. The volcanic ejecta generated in the process of volcanic eruption is the unique material of Jeju that cannot be found in any other regions. Out of the pyroclastic materials, the scoria is formed when the magma is released in the air in the process of volcanic eruption. It is similar to the color of iron oxide(Fe2O3) of hematites, and in the component, it contains a great quantity of iron oxide(Fe2O3). The fact that the color and component of it are similar to the ones of iron oxide(Fe2O3) has been led to the study on the development of iron pigment using jeju scoria. Like this, the research through the exploration of local materials for pottery work could symbolize the region and also have positive influences in the aspect of securing the identity. Thus, this study set up the scoria distributed in red volcanic cones of Gasi-ri, Pyoseon-myeon, Seoguipo-si, Jeju, developed the pigment based on the composition ratio of iron through the process as follows, and then applied it to the pottery work. In the research process, first, after collecting and crushing the scoria sample of red volcanic cone with the relatively-high content of iron, the crushed sample was strained through a sieve to observe the results in accordance with changes in the difference of grain size of scoria. Second, by mixing the strained scoria with white pottery clay in the proportion of 6:4 and then straining it through the No.150 sieve, the scoria basic pigment was developed. Also, in order to observe the change in accordance with the composition ratio of scoria, the pigment was developed by dividing the proportion with white pottery clay into 6:4, 4:6, and 7:3. Moreover, to obtain the finer-grained pigment than the sample of pigment strained through the No.150 sieve, it was experimented by changing the time of crushing under the same conditions with the use of ball mill. Third, the sample was produced in the regular thickness and size, and the developed iron pigment was used for decoration. To verify the degree of color and change in accordance with the number of overlapped brush-painting, it was decorated in the division of one time and three times. After performing the oxidative calcination in the electric kiln at 1250℃ for nine & half hours, the results were analyzed. Fourth, after dividing the outcome of sample calcination into the difference of grain size, change in the composition ratio, and the time change of using the ball mill, and then comparatively analyzing the color, the ideal sample was drawn and suggested. The iron pigment mostly showed the dark brown color, and different results were shown in accordance with the difference of grain size. And, diverse changes were shown in all the pigments. Also, regarding the results in accordance with the number of overlapped brush-painting, with the one time brush-painting, the gloss and melting state of glaze were excellent while the spreading effect just like iron-decoration was revealed less. Even though the rough iron pigment(No.40) was tough to be applied to decoration, the color and crystalization were great. If such characteristics are reflected to the decoration process, it would be possible to obtain the new and unique results different from the iron decoration. The sample showing the most ideal result was the pigment in the mixture of scoria strained through the No.150 sieve and white pottery clay in the proportion of 7:3 in the operation of ball mill for two hours, and in this case, the brush-painting was easy in the decoration process. Last...

직접전단시험에 의한 송이의 강도특성

남정만,이병걸,황한석 제주대학교 해양연구소 1997 해양자원연구소연구보고 Vol.21 No.-

Cheju island formed by volcanic activity which results many distribution of cindercone all over the island. Cindercone is composed of mainly scoria which is called "song-I" in Cheju dialect. The engineering properties of this scoria is completely different from granitic residual soils or sandy soils. Cheju island is being composed of mainly volcanic basalt. because of lack of quartzous sandy materials. Scoria is widely used as road foundation. aggregate for concrete and filler for retaining walls. Therefore scoria is studied on the behaviors of crushability strength. compactability and shearing strength. From this study, the variation of grain size, water content and the influence of shearing strengh due to compaction is observed and correlation of mechanical properties of decomposed granitic soil and scoria is made. The results of compacion test and direct shearing test are as follows (1) Scoria is vesicular perform high permeability accordingly and shows microcrytalline texture with fewer clay minerals while granitic weathered soil has granular texture of which feldspar produce abundant clay minerals by kaolitxation (2) The decompose granitic soils behave increment of density and decrement of optimum moisture content by increasing compaction energy. scoria shows increment of density but no variation in optimum moisture content is observed during the application of compaction energy. This indicates the higher ratio of micro vesicular in scoria. The void ratio after compaction is higher in scoria than decomposed granitic soils. (3) The crushing index is the highest in grain size of 0.1 - 0.5mm in decomposed granitic soil and constant increment of ratio is obseved in scoria. (4) At O.M.C state. the angle of internal fricion is increasing and cohesive index is decreasing due to increment of compaction energy while both angle of internal friction and cohesive index is decreasing due to the increasing simultaneously in scoria. The increment range of shear strength is higher in scoria than decomposed granitic soils. (5) In stress-strain curve this increment range of shearing strength of scoria is larger than granitic soil but the horizontal strain up to failure point is smaller.

제주 Scoria에 의한 구리 이온의 흡착특성

이민규,임준혁,현성수,감상규 한국화학공학회 2002 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.40 No.2

제주도의 지형학적 특성 때문에 다량 산재해 있는 scoria를 중금속 흡착제로서의 이용 가능성을 검토하기 위하여 5곳의 대표 지역에서 scoria를 채취하여 이들 scoria를 사용하여 Cu^2+ 이온에 대해 흡착 특성을 검토하였다. Scoria의 종류에 따른 구리 이온의 흡착량은 이온치환용량(CEC) 또는 표면적이 높을수록 구리 이온의 흡착량은 증가하였다. Scoria의 양이 많아질수록 Cu^2+의 제거율은 증가하였으나, 단위 무게당 흡착량은 감소하였다. 그러나, 구리 이온의 초기농도가 증가함에 따라서는 구리이온의 흡착량이 증가하였다. 유효확산계수는 초기 구리 이온의 농도에 대해 거의 직선성을 나타내었다. The adsorption characteristics of copper ion on scoria species, which were sampled at five representative areas of Jeju island, Korea, were investigated and the parameters related to its adsorption were obtained. Copper uptake by a scoria showed a high correlation with its cationic exchange capacity(CEC) and surface area, i.e. The scoria with higher CEC and surface area, showed higher copper uptake. The copper removal performance increased but the copper uptake decreased as scoria concentration increased. However, the copper uptake by scorias increased with increasing initial copper ion concentration. The effective diffusion coefficient showed a high linearity with initial concentration of copper ion.

제주점토와 스코리아(Scoria)를 활용한 옹기소지(素地)개발 연구

김진희,오창윤 한국도자학회 2019 한국도자학연구 Vol.16 No.2

The objective of this study is to seek for the utilization of clay developed in accordance with color and the practicality as clay by using Jeju soil and onggi clay as the basic clay, utilizing Scoria with the high iron content as an additive for the development of onggi clay, and then applying it to the pottery work. As Jeju is an volcanic island formed by volcanic eruptions, the eruption time of volcano and the geographical environment of Jeju soil worked as a reason why the content and characteristics were shown differently in each region. The 70% of the whole soil is the volcanic ash soil while the rest 30% is the non-volcanic ash soil. Just the non-volcanic ash soil(30%) could be used for pottery work. Currently, the high-quality soil is self-sufficiently collected from Daejeong-eup, Seogwipo-si, which is used for pottery work. However, as the process of collecting, supplying, and demanding soil is very difficult and the production form is based on small individuals, the change in clay composition is extreme, so that it is tough to have the standardized production of pottery clay. This problem with the supply and demand of clay is working as a cause for the difficulties to draw the uniform results in pottery work and also to vitalize Jeju onggi. For pottery work, the clay is an essential factor that decides the quality of products. Thus, after setting up the soil from Daejeong-eup of Seogwipo-si, Jeju, the fine onggi clay for Goryeo pottery, and Scoria distributed in Geomeunoreum as the research subjects, this study developed the onggi clay through the process as follows, and then applied it to pottery work. In the experiment for the development of clay, this study performed the processes of collecting/grinding a sample of soil from Sinpyeong-ri of Daejeong-eup, Seogwipo-si with the high iron content to create a certain particle state, making the basic clay by mixing it with the fine onggi clay for Goryeo pottery, and then producing clay specimens by changing the percentage of Geomeunoreum Scoria. In order to comparatively analyze the color change in accordance with temperature, total six times of plasticity test were conducted in a certain temperature variation under 1190℃~1240℃. By analyzing the melting state and the color characteristics in accordance with plasticity temperature based on the results of plasticity tests, the optimum melting temperature and clay specimens were drawn and summarized. The developed clay mostly showed red color, which is the result of the iron in Jeju soil and Scoria. Also, when the percentage of Scoria was increased, the viscosity was decreased, which was more noticeable when the percentage of Scoria was 25% or up. The specimens showing the ideal color and melting state included the clay mixed in the percentage of Jeju soil(60%), onggi clay(40%), and Scoria(5%), and the clay mixed in the percentage of Jeju soil(60%), onggi clay(40%), and Scoria(20%). If the color characteristics in accordance with plasticity temperature could be partially utilized in the process of analyzing the plasticity results, diverse color expressions and modern expression of Jeju onggi could be performed. Lastly, this study sought for/suggested the utilization of color for the developed clay in pottery work, utilization of local materials, and the practicality as clay, by designing the form of Jeju onggi in the aspect of modern practicality with the use of two developed clay showing the ideal results, and then actually applying the color in accordance with differences in percentage and temperature. 본 연구는 제주점토와 옹기토를 기본 점토로 사용하고 철분 함유량이 높은 스코리아(Scoria) 를 첨가물로 활용하여 옹기소지(素地) 개발을 진행한 후, 도예작업에 적용함으로써 색상에 따른개발 소지의 활용 가능성을 모색하여 제시하는데 목적이 있다. 제주는 화산폭발에 의해 형성된 섬이다. 폭발의 분출시기와 지리적 환경은 제주점토에 있어지역별로 그 성분과 특성이 다르게 나타나는 원인으로 작용하였다. 전체 토양 중 70%는 화산회토이고 30%는 비화산회토로 구성되어 있으며, 비화산회토 30%만 도예작업에 활용가능하다. 현재, 서귀포시 대정읍 지역에서 양질의 점토가 자급자족 형태로 채취되어 옹기작업에 사용되고있다. 하지만 점토의 채취 및 수급이 매우 어렵고 생산 형태가 개인 위주로 영세하여 도예작업에서 균일한 결과물을 도출하는데 문제가 있어 제주옹기 활성화가 이루어지지 못하는 원인으로작용하고 있다. 도자작업에 있어 소지(점토)는 제품의 질을 결정하는 중요한 요인이다. 따라서 본 연구는 제주 서귀포시 대정읍 신평리 점토와 고려도재의 고운 옹기토, 검은오름에 분포하고 있는 스코리아를 연구대상으로 설정하고 다음과 같은 과정으로 옹기소지를 개발하여도예작업에 적용하였다. 소지개발 실험은 철분 함유량이 높게 나타나고 있는 신평리의 점토 시료(試料)를 채취․분쇄하고 일정한 입자 상태로 만드는 과정을 거쳐 고려도재 고운 옹기토와 혼합하여 기본 점토를 만든 후, 검은오름 스코리아의 비율변화를 주어 시편을 제작하는 과정으로 진행하였다. 소성(燒 成)실험은 온도에 따른 색상변화를 비교․분석하기 위해 총 1190℃~1240℃까지 일정한 온도 편차를 두어 총 6회 진행하였다. 소성실험 결과를 바탕으로 소성온도에 따른 용융(熔融)상태와 색상 특성을 분석하여 최적의용융온도와 시편을 도출하고 정리하였다. 개발한 소지는 대체로 붉은 계열의 색상이 나타났다. 이는 제주점토와 스코리아 속에 철분 성분이 작용한 결과이다. 또한 스코리아 비율이 증가할수록 점력이 낮아지는 현상이 관찰되었으며 스코리아 비율이 25%이상 혼합되면 더욱 두드러지게나타났다. 이상적인 용융상태와 색상이 나타난 시편은 제주점토60%, 옹기토40%, 스코리아5% 비율로 조합한 소지와 제주점토60%, 옹기토40%, 스코리아20%로 조합한 소지였다. 결과 분석에서 나타난 소성온도에 따른 특성들을 부분적으로 잘 활용한다면 다양한 색상표현과 제주 옹기의 현대적 표현이 가능하겠다는 것을 확인하였다. 마지막으로 이상적 결과를 보인 두 가지 개발 소지를 이용하여 제주옹기의 실용적 측면에서형태를 디자인하고 스코리아 비율과 소성온도에 따른 색상변화를 실질적으로 적용함으로써, 도예 작업에서 개발 소지의 색상 활용과 지역 재료의 활용, 옹기소지로서의 활용 가능성을 모색하여 제시하였다.

폐수처리를 위한 효율적인 스코리아 담체의 개발

이호원,김승건,강영주 濟州大學校 海洋硏究所 2002 해양과환경연구소 연구논문집 Vol.26 No.-

This study was performed to enhance the biofilm formation ability of scoria, which has the advantage of porosity, surface roughness, and cost as media, by the treatment of the scoria surface using PEI(polyethyleneimine) solution. The optimum concentration of PEI for biofilm formation and COD removal efficiency was about 35㎎/L, but they were not affected by scoria size. After 5days operation in the aerated system, activated sludge attachment of scoria treated with PEI showed 29.4㎎/L, which was more than 1.7times compared with the untreated scoria. The amount of attached activated sludge of treated scoria after 4days operation in the small scale river system was 33.4㎎/L. It is expected that the installation of the treated scoria in the bottom of river makes an effective natural purification if the sufficient oxygen is supplied.

제주 스코리아의 제올라이트화에 따른 구리와 아연 이온의 흡착 용량 변화

이창한,감상규,허철구 한국환경과학회 2023 한국환경과학회지 Vol.32 No.8

Scoria from Jeju-island (Jeju scoria) was converted into zeolitic material (Z-SA) via zeolitification using the fusion/hydrothermal method. Jeju scoria could be synthesized into Z-SA to from a surface covered with Na-A zeolite crystals, which was confirmed through an analysis of X-ray diffraction peak patterns and scanning electron microscopy images. Jeju scoria and Z-SA were employed as adsorbents to evaluate the adsorption rate and adsorption capacities for Cu2+ and Zn2+ ions. The adsorption rates and isothermal adsorption capacities could be well fitted by the pseudo-quadratic adsorption kinetics and Langmuir adsorption isotherm, respectively. The maximum adsorption capacities (qm) of Z-SA for Cu2+ and Zn2+ ions were found to be 163.36 mg/g and 120.51 mg/g, respectively, using the Langmuir adsorption isotherm. When Z-SA is synthesized from Jeju scoria via zeolitification using the fusion/hydrothermal method, Z-SA exhibits an adsorption capacity that is more than approximately 100 times the value exhibited by Jeju scoria. As a result, the synthesized Z-SA was regarded as an effective, economic adsorbent.

Effect of Mixture Composed of Jeju’ Scoria and Ecklonia cava on Anti-inflammation

Hyun Kang 대한의생명과학회 2018 Biomedical Science Letters Vol.24 No.4

The purpose of this study is to investigate the anti-inflammation effect of the mixture, consisting of a series of different ratio of Ecklonia cava extract and scoria. Also, to make more functional scoria powder into cosmetic material, studies on the toxicity by cell viability assay. Scoria is found in large amounts in Jeju Island, as an adsorbent of heavy metal ions (Ni₂+, Zn₂+, and Cr₃+) in an aspect of its efficient utilization. Marine plants such as Ecklonia cava contain high amounts of polyphenolic antioxidants. The purpose of this study was to examine the anti-oxidative and anti-inflammation effects of combination of mixture of Eckloina cava extrat and scoria with optimal ratio. Therefore, this study suggested that combination of mixture of Eckloina cava extrat and scoria and its attenuated the oxidative and inflammatory reactions.

스코리아/활성탄의 혼합 충전탑에서의 중금속 및 유기물의 흡착 거동

김승건 ( Seung-geon Kim ),문수형 ( Soo-hyoung Moon ),이호원 ( Ho-won Lee ) 한국공업화학회 2021 공업화학 Vol.32 No.1

스코리아와 활성탄의 혼합 충전탑에서 중금속과 유기물의 흡착 특성, 스코리아의 물리화학적 특성과 관능기를 조사하였다. 스코리아의 혼합비율이 증가할수록 카드뮴, 니켈, 크롬, 납 이온의 평균제거율은 증가하였으나, 벤젠과 톨루엔의 평균 제거율은 감소하였다. 스코리아와 활성탄의 혼합 충전탑은 중금속과 유기물의 동시 제거에 효과적으로 사용될 수 있었다. 스코리아는 Si-H와 Si-O 작용기를 갖고 있으며, 이중 Si-O 관능기가 중금속의 흡착에 크게 기여함을 확인할 수 있었다. Adsorption properties of heavy metals and organics in the mixed packed column of scoria and activated carbon, as well as physicochemical properties and functional groups of scoria were investigated. As the mixing ratio of scoria increased, the average removal ratios of cadmium, nickel, chromium, and lead ions increased, but that of benzene and toluene decreased. The mixed packed column of scoria and activated carbon could be effectively used for the simultaneous removal of heavy metals and organics. Scoria has Si-H and Si-O functional groups, and it was confirmed that Si-O functional groups greatly contributed to the adsorption of heavy metals.

제주 스코리아로부터 합성된 Na-P1 제올라이트에 의한 Cu 이온 제거

감상규,홍정연,현성수,안병준,이민규 한국환경과학회 2002 한국환경과학회지 Vol.11 No.1

The removal performance of copper ion was studied using Na-Pl zeolites synthesized from Jeju scoria. The scoria which is found in large amounts in Jeju Island, was sampled at four regions, Jeju-shi Bonggae-dong(A), Pukcheju-gun Hanlim-eup Sangmyong-ri Mangoreum(B), Pukcheju-gun Hanlim-eup Keumag-ri(C) and Namcheju-gun Andeok-myun Dongkwang-ri(D). Synthetic Na-PI zeolites used in this study were more effective than natural zeolite and scoria for the removal of copper ion. The removal performances of copper ion decreased in the order of Na-Pl(D) > Na-Pl(C) > Na-Pl(B) > Na-Pl(A) among Na-Pl synthesized from the scoria according to region. These results showed the same trend with cation exchange capacity(CEC) for each synthetic zeolite, i.e., the synthetic Na-PI zeolite with a higher CEC showed a higher removal performance. The effective diffusion coefficients of copper ion by synthetic Na-Pl zeolites were one hundred and ten times higher than those by a pure zeolite 4A and the zeolite A synthesized from coal fly ash, respectively.