• 대한환경공학회지
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• 제32권6호
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• pp.625-630
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• 2010

본 연구는 발전소등에서 발생하는 중유회를 재활용한 탈취패널 제조시 활성탄, 규조토등의 첨가제를 활용함으로써 포름알데히드 및 톨루엔에 대한 제거성능을 향상시켜 중유회의 탈취패널 원료로서의 사용가능성을 확인하였다. 단일 첨가제를 사용하여 제작된 중유회 재활용 탈취패널의 경우 포름알데히드에 대해서는 93% 이상, 톨루엔에 대해서는 97% 이상의 제거성능을 보였으나 기준 패널에 비하여 압축강도가 27~63% 감소하였다. 반면에 두 가지 첨가제를 여러 가지 비율로 혼합하여 제조된 것 중 활성탄과 규조토가 5 wt%씩 첨가된 패널은 포름알데히드 84%, 톨루엔 96%의 제거성능을 보였으며 압축강도는 기준패널보다 32%증가하였다. 따라서 첨가제의 혼합사용을 통하여 중유회재활용 탈취패널을 제조할 경우 유해가스 제거성능과 패널의 강도를 향상 시키는 것이 확인되었다.

• Journal of Biosystems Engineering
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• 제29권2호
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• pp.151-158
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• 2004

This research was conducted to study the offensive odor adhesion efficiency of filter bed materials using the experimental column that was designed and constructed in this work. The offensive odor adhesion experiment was conducted using mixture of high physical adhesion efficiency material, and the fixity of deodorization microorganism of selected filter bed material was tested using ammonia exclude microorganism A4-2 and sulfur oxidation microorganism S5-5.2 those were cultured at the Agricultural Chemical Department of Chungnam National University, and deodorization efficiency of selected filter bed material mixture was tested. Followings are summary of these tests results. 1) Amount of elimination of the offensive odor gas ammonia and hydrogen sulfide per unit volume were 0.054 and 0.016 $\ell$/㎤ in rice hull, 0.01 and 0.004 $\ell$/㎤ in rice straw, 0.158 and 0.01 $\ell$/㎤ in coconut, 0.014 and 0.02 $\ell$/㎤ in perlite, 0.004 and 0.003 $\ell$/㎤ in high road ball, and 0.112 and 0.015 $\ell$/㎤ chaff of pine, respectively. 2) Amount of elimination of offensive odor gas of ammonia and hydrogen sulfide per unit vloume were 0.079 and 0.016 $\ell$/㎤ in mixture 1, 0.045 and 0.014 $\ell$/㎤ in mixture 2, 0.123 and 0.017 $\ell$/㎤ in mixture 3, 0.055 and 0.016 $\ell$/㎤ in mixture 4, 0.031 and 0.015 $\ell$/㎤ in mixture 5, and 0.111 and 0.020 $\ell$/㎤ in mixture 6, respectively. 3) The offensive odor elimination microoraganism inoculated to the mixture of chaff of pine (70%) and pert (30%) showed the elimination efficiency of 99.06% and 96.61% against the ammonia and hydrongen sulfide, respectively, during 24 hours period.

• 한국염색가공학회지
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• 제22권1호
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• pp.71-76
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• 2010

In this study the optimum dyeing conditions and blocking effect of UV deodorization efficiency of Ligustrum japonicum Thunb were investigated. Colorants were water-extracted from Ligustrum japonicum Thunb fruit and freeze-drided to obtain colorants powder. The effects of dye concentration, dyeing temperature, dyeing time, and the number of dipping count were studied. Fastness to dry cleaning, rubbing, perspiration, and light were measured according to KS K 0644, KS K 0650, KS K 0715 and KS K 0700, respectively. In order to examine the dyeability according to dyeing conditions, reflectance of fabrics were measured by using UV/VIS spectrophotometer. The bath ratio was 1:20. Dyeing concentration was 100, 200, 300, 400 and 500% on the weight of fiber. Dyeing time was 20, 40, 60, and 80 minutes. Dyeing temperature was 20, 40, 60, 80, and $100^{\circ}C$. The infrared high pressure dying machine was used. As dyeing concentration increased, dye adsorption increased up to 400% and it slowed down. Dye uptake was increased with raising themperature up to $80^{\circ}C$ and it slowed down. Dye adsorption occurred rapidly at first 20 minutes and then it slowed down and reached almost maximum dye uptake at 60 min. Dye uptake increased by repeated dyeing. Therefore, it is considered that optimum dyeing condition is 400%(o.w.f.), $80^{\circ}C$, 60 min. And repeated dyeing improves dye uptake. Color fastness to dry cleaning and rubbing was good, but light fastness and perspiration fastness was not good. Blocking effect of ultraviolet radiation and deodorization efficiency was good.

• 공업화학
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• 제18권1호
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• pp.17-23
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• 2007

제지용 무기안료에 항균기능과 광촉매 탈취기능을 부여하기 위해 hybridization system을 이용하여 Ag 용액과 $TiO_2$로 표면 개질 처리하여 기능성 무기안료를 제조하고, 이를 이용하여 항균 및 탈취 기능을 갖는 특수지를 제조한 후 내항균 특성을 평가하였다. 내항균 평가로는 균의 생성여부를 눈으로 직접 확인 할 수 있는 halo test법, 균들의 생육 저하효과를 확인하는 방법인 inhibition growth test와 정균감소법을 사용하였다. 또한 제조된 항균기능성 특수지를 벽지용도로 적용하고자 하였으며, 내항균 평가 시 항균벽지 주위로 선명한 클리어 존이 형성되어 균의 성장 억제를 육안으로 확인할 수 있었다. 항균 및 탈취기능을 지니는 특수지의 휘발성 유기화합물 분해능 평가를 위한 benzene의 광촉매 분해 효율실험에서 반응시간 80min 동안 45~50%의 제거효율을 보였으며, 반응시간 30 min 정도에서 분해효율이 90% 이상 도달함을 알 수 있었다.

• 한국염색가공학회지
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• 제32권1호
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• pp.1-8
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• 2020

The objective was to study the efficiency of Houttuynia cordata extract colorants as eco-friendly and functional dye for wool fabrics. Effects of dyeing conditions and mordanting on dye uptake, color change, and colorfastness were investigated. Also, antimicrobial activity and deodorization performance were evaluated. The Houttuynia cordata colorants showed good affinity to wool fabrics and produced YR Munsell color. The optimum condition of dyeing was 2.0% of colorants concentration(o.w.b.) at 100℃ for 60 minutes under pH 5.3. Regardless of the mordant type and mordanting method, mordants improved dye uptake and the increase in dye uptake by Fe mordant was higher than that of Al mordant. Al post-mordanting and Fe mordanting changed the color of dyed fabrics with Y Munsell color. The colorfastness of un-mordanted and Al post-mordanted fabrics were excellent above grade 4. Bacteria reduction rate(Staphylococcus aureus) of wool fabrics dyed with Houttuynia cordata colorants was excellent at 98.2%. Also, the deodorization was good at 81%. The results show Houttuynia cordata colorants can be used as a functional natural dye for wool fabrics.

• 한국지역사회생활과학회지
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• 제19권2호
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• pp.213-221
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• 2008

In this study, a dye bath was made using a mixture of distilled water, pine needle extract and bamboo vinegar. Analysis and comparison of various functions of cotton fabrics dyed using bamboo charcoal and gardenia seeds in distilled water and in the dye bath mixture were done. The summary of the results is as follows. Comparing bamboo vinegar and the pine needle extracts, the bamboo vinegar had a higher antibacterial function. In the case of natural dyeing cotton fabrics using bamboo charcoal and gardenia seeds, the additional amount of dyestuff for optimization is 10 g and 20 g respectively per 1 liter of distilled water. The suitable dye bath mixture ratio of distilled water, pine needle extract, and bamboo vinegar considering functionality and economical efficiency of dyed fabrics is 4:3:3. By using the mixture made in this study as a dye bath, improved antibacterial function, deodorization, and colorfastness can be obtained more than distilled water alone.

• 한국염색가공학회지
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• 제33권1호
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• pp.24-30
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• 2021

In this study, PET containing 3% silver ion-exchange zeolite was mixed with cotton in a ratio of 6:4 to prepare a spun yarn to evaluate the tensile strength, absorption speed, absorption rate, antibacterial property, and the efficiency of deodorization. As a result, the following conclusions were obtained. First, it can be confirmed that silver ion exchange zeolite is evenly distributed inside and on the surface of the antimicrobial PET-SF through SEM. It was found that the tensile strength between the CVC sample mixed with silver ion zeolite PET and cotton and the normal cotton 100% sample was slightly lower in the CVC sample. Although the absorption speed and water absorption rate were measured to find out the moisture characteristics, it was confirmed that there was no significant difference. The contact angle was slightly larger in the antimicrobial CVC sample, but the time it took for the moisture to completely penetrate into the knit fabric was 0.85 seconds. In addition, it was found that out of the total mixing ratio, 40% of antibacterial PET was spun with regular cotton to produce yarn, which had an excellent bacteria reduction rate of 99.9% and a deodorization efficiency of 85%.

• 한국토양환경학회지
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• 제4권3호
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• pp.45-56
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• 1999

퇴비 공장에서 발생하는 대표적 질소계 악취가스인 암모니아를 제거하기 위해 퇴비발효장에 바이오필터를 설치하여 암모니아와 대표적 유황계 악취가스인 황화수소에 대한 제거성능을 조사하였다. 퇴비공장의 악취가스 발생은 현장의 날씨 및 퇴비 상태, 퇴비교반기의 가동여부에 따라 많은 영향을 받게 되며, 발생되는 악취의 농도는 약 2배까지 차이를 보였다. 그리고 수용성 취기를 효과적으로 제거하기 위해 수세 방식의 전처리조를 가동함으로써 암모니아의 제거능을 약 3배 이상 향상시킬 수 있었다. 바이오필터의 장기안정성을 조사하기 위해 일정한 풍량조건(SV=500h-1) 하에서 약 100일간 가동한 결과 미생물들의 순치기간은 약 30일이었으며. 이후 탈취능은 안정화되었다. 안정화가 이루어진 후 암모니아와 황화수소의 제거율은 각각 95%이상. 97%이상 유지할 수 있었다. 100$\textrm{m}^3$/min의 풍량을 처리하는 퇴비공장용 바이오필터의 전기 소비량은 약 80㎾h/일이었고, 용수 소비량은 80~100ι/일이었다. 결과적으로 퇴비장에서 발생되는 악취를 제거하기 위해 바이오필터를 적용할 경우 탈취능이 우수할 뿐만 아니라 경제적인 측면에서도 효과적일 것으로 판단되었다.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2003년도 추계학술대회 논문집
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• pp.384-385
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• 2003

일상 생활에서 악취로 인한 피해를 줄여 쾌적한 생활환경 유지에 대한 관심이 높아짐에 따라 이에 관련된 탈취제품이 많이 상품화되고 있다. 본 연구에서는 탈취 성능에 대하여 객관적으로 평가할 수 있는 시험 분석법을 개발하고, 탈취 성능 평가방법의 정확도를 확립하기 위해 단계별 불확도 평가를 수행하였다. 측정 불확도 요인을 체계적으로 평가하여 주요 불확도 요인을 파악하고 이를 최소화하기 위하여 어떠한 점을 주의하여야 하는 지를 조사하였다. (중략)

• 한국염색가공학회지
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• 제27권1호
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• pp.96-104
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• 2015

This study examined the pretreatment effect, appropriate dyeing conditions, color fastness and functionality of cotton fabrics dyed with Zizania latifolia Turcz. Dye uptake was substantially increased by pretreatment and chitosan pretreatment was much more effective than tannic acid pretreatment. Optimal dyeing conditions were colorant concentration of 100%, dyeing temperature of $100^{\circ}C$, dyeing time of 80 minutes and dyebath pH of 5.5. Color fastness of chitosan pretreatment and dyed cotton to washing, rubbing, perspiration and light was 4, 5, 3-4(acidic), 3(alkaline) and 3 respectively. Color fastness of tannic acid pretreatment and dyed cotton to washing, rubbing, perspiration and light was 4, 5, 3-4(acidic), 4-5(alkaline) and 4 respectively. Deodorization rates of ammonia(NH3) were 99.9% in both cases. UV protection rate were 98.3% of UV-A and 98.5% of UV-B in case of chitosan pretreatment. UV protection rate were 98.2% of UV-A and 98.5% of UV-B in case of tannic acid pretreatment. UV protection factor(UPF) was 50+ in both cases. Reduction rate of Staphyloccus aureus were 99.9% in both cases. Therefore Zizania latifolia Turcz. could be used a new functional colorant.