• 제목/요약/키워드: heat moisture treatment

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The Feasibility of Co-Incineration for Municipal Solid Waste and Sewage Sludge through the Change of Heat Loading and Atmospheric Pollutants Loading (하수슬러지와 생활폐기물 혼합소각시 열부하 변화 및 대기오염물질 부하 변화를 통한 혼합소각 가능성에 관한 연구)

  • Cho, Jae-Beom;Kim, Woo-Gu;Yeon, Kyeong-Ho;Shin, Jung-Hun
    • Journal of Korean Society of Environmental Engineers
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    • v.34 no.9
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    • pp.583-589
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    • 2012
  • The various promotion countermeasures such as solidification, carbonization, and the creation of cement materials have been considered to existing treatment methods such as incineration and the creation of composts, since direct landfill was prohibited for encouraging the recycling based on the sludge treatment on land. The Main objective of this study is to investigate the feasibility of co-incineration for MSW (Municipal Solid Waste) and SS (Sewage Sludge) through the change of heat and atmospheric pollutants. In this study, LHV (Low Heating Value) is 100~300 kcal/kg because the MC (Moisture Content) of de-hydrated sewage sludge is approximately 80%. From the results, we knew the feasibility of co-incineration for MSW (80%) and SS (20%). As the co-incineration rate of SS up to 20% became higher, the loading of heat and atmospheric pollutants was not influenced.

Effect of Heat-Moisture Treatment of Domestic Rice Flours Containing Different Amylose Contents on Rice Noodle Quality (아밀로오스 함량이 다른 국내산 쌀가루의 수분-열처리가 쌀국수 품질에 미치는 영향)

  • Seo, Hye-In;Ryu, Bog-Mi;Kim, Chang-Soon
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.11
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    • pp.1597-1603
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    • 2011
  • The influence of heat-moisture treatment (HMT) and substitution of rice flour containing different amylose contents on the quality characteristics of rice noodles was investigated. HMT was applied to rice flours with 21% moisture content at 100 and 105$^{\circ}C$ for 30 min. Three rice cultivars were used, including high amylose of Goami (GM) and intermediate amylose of Choochung (CC) as domestic rice flours and imported rice of Taeguk (TG) as a control. HMT and substitution of rice flour with different amylose contents affected the cooking and texture quality of rice noodles. When rice noodles were made of intermediate amylose rice flour with HMT, cooking properties improved with decreased cooking loss and cooking water turbidity and thus were closer to those of control. Especially, the hardness, adhesiveness, tensile strength, and darkness of rice noodles notably increased when HMT rice flour was used. Based on the results of quantitative descriptive analysis for selected rice noodles, the noodles made of HMT CC at 105$^{\circ}C$ (CC105) had high scores for resilience and adhesiveness and low scores for hardness compared with imported commercial rice noodles and other experimental noodles such as TG, HMT GM100, TG+CC, and TG+CC105. In conclusion, rice noodles were made of composite flours containing high amylose and intermediate amylose contents or HMT intermediate amylose content rice flour.

Antioxidant Activity of Heated Licorice (Glycyrrhiza uralensis Fisch) Extracts in Korea (열처리한 국산 감초추출물의 항산화활성)

  • Woo, Koan-Sik;Hwang, In-Guk;Noh, Young-Hee;Jeong, Heon-Sang
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.6
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    • pp.689-695
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    • 2007
  • Antioxidative activity and polyphenol contents of heated licorice in Korea extracted by ethyl.acetate (EtOAc) and ethyl.alcohol (EtOH) were evaluated at various heating temperatures (110, 120, 130, 140, and $150^{\circ}C$), times (1, 2, 3, 4, and 5 hr), and moisture contents (10, 20, 30, 40, and 50%). Maximum extraction yields of EtOAc extract was 10.9% at $130^{\circ}C$, 3 hr, and 50% moisture content and that of EtOH extract was 25.0% at $120^{\circ}C$, 2 hr, and 20% moisture content, whereas those of control were 0.8 and 15.8%, respectively. The highest total polyphenol content was 845.67 mg/100 g in EtOH extract at $120^{\circ}C$, 2 hr, and 20% moisture content (control: 277.00 mg/100 g). The antioxidative activity ($IC_{50}$) was the highest value of 0.53 mg/mL in EtOAc extract at $120^{\circ}C$, 2 hr, and 20% moisture content (control: 12.34 mg/mL). The highest ascorbic acid equivalent antioxidant activity value of 1,584 mg ascorbic acid (AA) eq was obtained from EtOAc extract at $120^{\circ}C$, 2hr, and 40% moisture content (control: 1,263 mg AA eq). Optimum heating conditions for the improvement of antioxidative activity of licorice in Korea was $120^{\circ}C$, 2 hr, and $20{\sim}40%$ moisture content.

Production of Foamed Glass by Using Hydrolysis of Waste Glass(III) - Heat Treatment for Stabilization and Scale-up Test - (폐유리의 가수분해 반응에 의한 발포유리의 제조(III) - 안정화 열처리공정 및 Scale-up Test -)

  • Lee, Chul-Tae;Um, Eui-Heum
    • Applied Chemistry for Engineering
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    • v.17 no.1
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    • pp.73-81
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    • 2006
  • Heat treatment condition for the stabilization of foamed glass block through the foaming process of the hydrolized waste glass was investigated and scale-up test for the manufacturing of foamed glass was also attempted for the actual foaming process. Proper heat treatment condition was quenching from the foaming temperature to $550{\sim}600^{\circ}C$ for stabilization, and then annealing from stabilization temperature to $200^{\circ}C$ and holding up at $200^{\circ}C$ for removal thermal stress, and then annealing to the room temperature with cooling speed of $0.3^{\circ}C/min$. Through this heat treatment conditions, foamed glass block with size of $250mm{\times}250mm{\times}90mm$ was produced successfully. The properties of this foamed glass block showed density of $0.28{\pm}0.06g/cm^3$, thermal conductivity of $0.048{\pm}0.005kcal/hm^{\circ}C$, moisture absorption of $0.5{\pm}0.09vol%$, linear expansion coefficient of $(8.6{\pm}0.2){\times}10^{-6}m/m^{\circ}C$($400^{\circ}C$), flexural strength of $15.0{\pm}0.6kg/cm^2$, and compression strength of $39.5{\pm}0.6kg/cm^2$.

Solid Waste from Swine Wastewater as a Fuel Source for Heat Production

  • Park, Myung-Ho;Kumar, Sanjay;Ra, ChangSix
    • Asian-Australasian Journal of Animal Sciences
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    • v.25 no.11
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    • pp.1627-1633
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    • 2012
  • This study was to evaluate the feasibility of recycling the solids separated from swine wastewater treatment process as a fuel source for heat production and to provide a data set on the gas emissions and combustion properties. Also, in this study, the heavy metals in ash content were analyzed for its possible use as a fertilizer. Proximate analysis of the solid recovered from the swine wastewater after flocculation with organic polymer showed high calorific (5,330.50 kcal/kg) and low moisture (15.38%) content, indicating that the solid separated from swine wastewater can be used as an alternative fuel source. CO and NOx emissions were found to increase with increasing temperature. Combustion efficiency of the solids was found to be stable (95 to 98%) with varied temperatures. Thermogravimetry (TG) and differential thermal analysis (DTA) showed five thermal effects (four exothermic and one endothermic), and these effects were distinguished in three stages, water evaporation, heterogeneous combustion of hydrocarbons and decomposition reaction. Based on the calorific value and combustion stability results, solid separated from swine manure can be used as an alternative source of fuel, however further research is still warranted regarding regulation of CO and NOx emissions. Furthermore, the heavy metal content in ash was below the legal limits required for its usage as fertilizer.

Studies on application of Cimicifuga heracleifolia blended Prescriptions from Donguibogam (동의보감(東醫寶鑑) 중(中) 승마(升麻)가 배오(配伍)된 방제(方劑)의 활용(活用)에 대한 고찰(考察))

  • Park Sang-Nam;Kook Yoon-Bum;Lee Jang-Chun;Yun Young-Gab
    • Herbal Formula Science
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    • v.10 no.2
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    • pp.5-46
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    • 2002
  • This report describes the studies as follows through the research into the data of Cimicifuga heraclefolia Komarov blended prescriptions from Donguibogam. Cimicifuga heracleifola Komarov blended prescriptions are utilized for 39 therapeutic ranges. such as in dentistry, onclology, and 16 therapeutic ranges occupy over 84% totally, from dentistry to nasal disease. Cimicifuga heracleifola Komarov blended prescriptions use in the symptpms resulting from dentistry, intestine, internal disease, and they are used 22 disease also. The main pathologies of Cimicifuga heracleifola Komarov blended prescriptions found weakness in the digestive system, heat of stomach, wind of stomach in the splanchnology, and pathologies of wind-heat, wind-moisture, cold, excluding they are using for energy-blood, weakness, internal disease. The actual amount of Cimicifuga heracleifola Komarov blended has a wide capacity from 2 pun to 5 don, 1 don is broadlly used by 26%. Through the research into the main factors that we know Cimicifuga heracleifola Komarov blended prescriptions are listed in Yangmyungkyung, as they are regularly used as disease treatment and increasing the level of the general energy of the body, relaxing a skin, increasing stamina, detoxication, eliminating tumor, widely.

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The Clinical Study of Urticaria (두드러기 치료 조사)

  • Yoon, Jung-won;Yoon, So-won;Yoon, Hwa-jung;Ko, Woo-shin
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.16 no.2
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    • pp.152-176
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    • 2003
  • This study was clinically performed with the 73 outpatients of urticaria who had visited the Dept. of Dermartology, Oriental Medical Hospital, Dong-eui University from January 1st 2000 to June 30th 2003. They have all taken the oriental herb medicine as Sungmagalguntanggamibang(SGT, 升麻葛根湯加味方) more than 1 time. Urticaria is a common disease and a well known reaction pattern of the skin charaterized by erythema, wheals and edema, that is the results of various causes. Urticaria is classified into acute or chronic type. The etilogy of acute uricaria has been determined in many cases, but the cause of chronic urticaria has been determined in 10$\%$ to 20$\%$ of cases. Character of chronic type urticaria is recurrent pruritus and erythematous skin disease by stimulating factor. Through checking up the present patient state, we verified the effect of SGT in various ways. The results were summarized as follows; 1. An increase of taking a medicine(SGT) and attending a hospital in number let down repeated urticaria occurence. 2. SGT is more effective when the symptoms with the severe pruritic wheals are spread on the whole body in daily occurrence. 3. In urticaria treatment method, gradually reducing a western medicine and going side by side SGT, that is good at symptoms improvement. 4. Etiology of urticaria is classified into intestine-stomach accumulated heat by indigestion(食滯腸胃積熱), wind-moisture(風濕), wind-heat(風熱) etc. The SGT is available in the order of frequency of use.

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Quality characteristics of improvement pellet nuruk inoculated from Aspergillus luchuensis 34-1

  • Jung, Eui-Hyoun;Mun, Ji-Young;Kim, So-Young;Yeo, Soo-Hwan
    • Journal of Biomedical and Translational Research
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    • v.19 no.4
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    • pp.103-109
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    • 2018
  • Aspergillus luchuensis 34-1 was inoculated into wheat pellets with different conditions of raw materials to produce nuruk. The degree of substrate reactivity improvement of steam treated raw materials compared with that of non-heat treated was analyzed. The water content of the pellet was adjusted to 25% and 35%, and steam treatment for 10 minutes improved the substrate reactivity at 2.1-fold and 3.1-fold, and sterilization was also possible. The characteristics of improvement pellet nuruk were investigated according to the degree of crushing and water content of raw materials according to the temperatures and humidities ($23^{\circ}C$, $30^{\circ}C$ and RH 60%, RH 80%). The pH of the pellet nuruk was higher depending on the temperature, humidity and moisture content of the koji were lower, and the pH of the flour-pellet nuruk was lower than that of 2 mm milling wheat-pellet nuruk according to milling degree. It can be seen that the milling degree affects the growth of mold. The acidity and amino acid were generally higher as fermentation time increased. Also, the higher the incubation temperature, humidity and moisture content, the higher the value. Glucoamylase activity was significantly the highest in moisture content 35% D2b nuruk, cultured at $30^{\circ}C$ and 80% RH for 38 hours. This is higher than the previous reports on glucoamylase of rice-koji or commercial nuruk using fungi isolated from traditional nuruk. From these study, it is expected that making of improvement pellet nuruk would save the fermentation time considerably compared with traditional nuruks.

A Study on the Characteristics of Salt Spray Test of Roll Formed and Zn-Ni Electrodeposited Steel Bolts (전조 후 Zn-Ni 전기도금한 강 볼트의 염수분무 특성에 관한 연구)

  • Hamrakulov, B.;Son, Y.H.;Kim, I.
    • Transactions of Materials Processing
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    • v.21 no.5
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    • pp.330-335
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    • 2012
  • Roll formed steel bolts are electrodeposited with Zn-Ni to protect themselves from corrosion. However, white storage stain or white rust(corrosion) is found on Zn-Ni electrodeposited surface of steel bolts when they are exposed to moisture. In this paper a new process is introduced to protect Zn-Ni electrodeposited steel bolt from white storage stain or white rust for a long time under the salt spray test and high humidity test conditions. The better corrosion resistance could be gotten by the additional process of Ni-P electroless deposition and heat treatment to conventional manufacturing method of Zn-Ni coated steel bolt. The corrosion resistance of Zn-Al powder slurry coated steel bolt showed better than that of Zn-Ni electrodeposited one.

Oriental and Western Medical Study on the cause and treatment of Obesity (비만의 원인과 치료에 대한 동서의학적 고찰)

  • Lee, Sang-Bong;Keum, Dong-Ho;Lee, Myeong-Jong
    • The Journal of Dong Guk Oriental Medicine
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    • v.5
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    • pp.33-52
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    • 1996
  • The purpose of this study was to investigate efficient treatment in obesity. In order to help clinical application in obesity treatment, this study was performed to investigate the cause and treatment in obesity. The main finding of this study were as follows. 1. In the cause of oriental medicine in obesity, that were moisture(濕), phlegm(痰), gore(瘀), the productive heat(積熱), overeating, supemutrition, underaction, heredity and habitude, psychologic factor(stress) etc. 2. In the western medicine, the cause of obesity were genetic cause, endocrine disorder, hypothalamic extraodinary and secondary effect of drug. But simple obesity is the greater part. Also there were psychologicai and environmental causes. 3. Ear acupuncture of wide application were Naebunbi, Sinmun, Taejang, $ij{\check{o}}m$, $Pyej{\check{o}}m$, $Bij{\check{o}}m$ etc. 4. Body acupuncture of application were $Naej{\check{o}}ng$, $Sangg{\check{o}}h{\check{o}}$, Pungnyung, Kokchi, $Sam{\check{o}}mgyo$, $Umn{\check{o}}ngch{\check{o}}n$ etc. 5. In oriental medical treatment of obesity, Bangpungtongs ngsan(防風通聖散), Daesihotang(大柴胡湯), Seungkitang(承氣湯), Bangkihwangkitang(防己黃?湯), Richulsaryeungtang(二朮四笭湯), Taeksatang(澤瀉湯), Opieum(五皮飮), Gongyundan(控涎丹) etc were wide applicated. 6. The western medical treatment in obesity encourage the dietary cure, exercise cure and behavior adjustment than medical therapy or operation. In treatment of obesity, the dietary cure and herb-drug therapy, ear acupuncture and body acupuncture are effective. But weight maintenance after treating is more important. After all the continuous dietary cure, behavior adjusting cure and exercise cure are necessary.

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