• Title/Summary/Keyword: 염색폐수

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Dyestuff Wastewater Treatment by Membrane Separation as Post-treatment after lenten막s Reaction (펜턴반응후 후처리로써 막분리에 의한 염색폐수처리)

  • 김선일;윤영재
    • Journal of Environmental Science International
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    • v.7 no.1
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    • pp.74-80
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    • 1998
  • Because permeate flux was very low as It has the suspension soled of higher concentration In the trafiltration membrane separation treatment of dyestuff wastewater, pre-treatment of Ponton reaction was carried out. In the case of pH 3, COD removal rate was the hi각erst of 58%. When PAC was added into the pre-treatment supernatant, the COD removal rate was found to be 53% , and when COD was 153mg/L, the removal rate was 92.3% in the trafiltration separation. In addition, the effect of the addition of PAC on the permeate flux was also investigated. The decrease of permeate flux In the presence of PAC was higher than In the abscence of PAC, but the recovery of permeability by cleaning was better In the case of PAC system.

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A Study on the Treatment of Dyeing Wastewater Using TiO₂/H₂O₂/UV Processes (TiO₂/H₂O₂/UV 공정을 이용한 염색폐수처리에 관한 연구)

  • Jo, Il Hyeong;Jeong, Hyo Jun;Park, Gyeong Ryeol;Seong, Gi Seok;Lee, Yong Gyu;Lee, Hong Geun
    • Journal of environmental and Sanitary engineering
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    • v.15 no.4
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    • pp.27-27
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    • 2000
  • In order to treat the dyeing wastewater, the UV/TiO₂/H₂O₂ system was investigated, and proper pretreatment methods were examined to reduce the load on the system considering economical and technical efficiency. The results of this study were as follows: 1.UV/TiO₂/H₂O₂ system with pretreatment process was adopted, the result of Chemical coagulation and pH control units was pH 11→ coagulation → pH 4 and the optimum dosage of FeCl₃ was 600㎎/ℓ 2. Proper dosage of TiO₂in the UV/TiO₂/H₂O₂ system with pretreatment process was 2g/ℓ and H₂O₂ was 1000㎎/ℓ, UV contact time was 20min to get below 200㎎/ℓ of $COD_{Cr}$

A Study on the Treatment of Dyeing Wastewater Using $TiO_2/H_2O_2/UV$ Processes ($TiO_2/H_2O_2/UV$ 공정을 이용한 염색폐수처리에 관한 연구)

  • 조일형;정효준;박경렬;성기석;이용규;이홍근
    • Journal of environmental and Sanitary engineering
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    • v.15 no.4
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    • pp.26-34
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    • 2000
  • In order to treat the dyeing wastewater, the $UV/TiO_2/H_2O_2$ system was investigated, and proper pretreatment methods were examined to reduce the load on the system considering economical and technical efficiency. The results of this study were as follows: 1. $UV/TiO_2/H_2O_2$ system with pretreatment process was adopted, the result of Chemical coagulation and pH control units was $pH{\;}11{\;}{\rightarrow}{\;}coagulation{\;}{\rightarrow}{\;}pH{\;}4$ and the optimum dosage of $FeCl_3$ was $600mg/{\ell}$. 2. Proper dosage of $TiO_2$ in the $UV/TiO_2/H_2O_2$ system with pretreatment process was $2g/{\ell}$ and $H_2O_2$ was $1000mg/{\ell}$, UV contact time was 20min to get $200mg/{\ell}$ of $COD_{Cr}$.

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Studies on the Biological Treatment of Dye Waste Water and Degration of Polyvinyl Alcohol (염색공장 폐수중 PVA 분해세균의 분리 및 생물학적 처리효과)

  • 강선태;서승교;권오억
    • Journal of Environmental Health Sciences
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    • v.16 no.1
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    • pp.21-28
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    • 1990
  • As a research for treatment of waste water by biological method, we investigated general characteristics of waste water and isolated some useful bacteria which effectively treated waste water. Compositions of waste water were analyzed to give COD 2060 ppm, PVA 560 ppm, T-N 50 ppm, T-P 3.3 ppm and PH 12. Also, we inverstigated optimum nutrients requirement and growth conditions by mixed culture as well as the effect of coagulants. The COD removal rate reached maximum state for 48 hrs culture at pH 7.0 and 30$^{\circ}$C. Alum as the coagulated was the most effective. The COD removal rate was also increased by supplementing 10 ppm phosphorous sources as additional nutrients. The COD of waste water was reduced to 10% of its initial value by the continuous culture. As a result of overall experiments the COD of effluents became about 100 ppm and final pH 7.

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Performance Evaluation of Modified Zeolite with Mg for the Treatment of Dyeing Wastewater (Mg으로 개질한 Zeolite를 이용하여 염색공장 폐수처리 평가)

  • Choi, Hee-Jeong
    • Journal of Korean Society on Water Environment
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    • v.31 no.4
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    • pp.392-398
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    • 2015
  • The aim of this study was to investigate the bio-adsorption using modified zeolite with Mg (Mg-zeolite) in the dyeing wastewater treatment. Mg-zeolite adsorbed successfully 100% of the color, suspended solid (SS). chemical oxygen demand (COD), biological oxygen demand (BOD), total nitrogen (TN) and total phosphorus (TP) in the dyeing wastewater at the following optimal Mg-zeolite loading: 20 mg/L for colour, SS, TN and TP, 30 mg/L for BOD and COD. These results indicated that the amount of 1 mg/L Mg-zeolite adsorbed 11.6 mg/L for color, 9.5 mg/L for SS, 45.0 mg/L for COD, 12.7 mg/L for BOD, 0.91 mg/L for TP and 2.25 mg/L for TN. The bio-adsorbent, Mg-zeolite, can be a promising adsorption due to its high efficiency and low dose requirements.

Degradation of Polyvinyl Alcohol in Dye-Processing Wastewater by Agar-Acrylamide Microbial Immobilization Method (한천-아크릴아마이드 미생물 고정화법에 의한 폐수 중 폴리비닐알콜의 분해)

  • 김재훈;김정목조무환
    • KSBB Journal
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    • v.10 no.3
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    • pp.241-248
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    • 1995
  • For the treatment of poorly biodegradable polyvinyl alcohol(PVA) in dye-processing wastewater, immobilized microbial beads were prepared by uslng agar-acrylamide method. PVA removal efficiency for the synthetic wastewater was 85% at the PVA volume loading rate of $3.1g/\ell$.day. In case of real desizing wastewater, PVA removal efficiency was 81.3% at the PVA volume loading rate of $3.25g/\ell$.day. In observation of cross section of immobilized bead passed 5 months with diameter of 2.4mm, the growth of cell was limited by the resistance of substrate and oxygen transfer for the inners region of more than 48% of bead radius from the surface. It was estimated that 70% of total removed PVA was degraded by the immobilized cells in the continuous immobilized reactor. Substrate utilization rate in the suspended reactor was decreased with increasing dilution rates above 0.083 hr-1, but that in the immobilized reactor was increased with increasing dilution rates up to 0.125hr-1. The substrate removal efficiency of immobilized reactor was much superior to that of suspended reactor with increasing dilution rates. Saturation constant of substrate utilization rate equation, Ks was $6.6 g PVA/\ell$, and maximum specific substrate utilization. k was 0.175g PVA/g cell.hr

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Marine Ecotoxicological Assessment Using the Nauplius of Marine Harpacticoid Copepod Tigriopus japonicus (저서성 해산 요각류 harpacticoid Tigriopus japonicus 유생을 이용한 해양생태독성평가)

  • Yoon Sung-Jin;Park Gyung-Soo;Oh Jeong-Hwan;Park Soung-Yun
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.9 no.3
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    • pp.160-167
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    • 2006
  • Harpacticoid copepod Tigriopus japonicus is widely distributed in coastal waters of Korea and plays important role in marine trophic structure as a first consumer. In this study, a series of experiment were conducted to test the potential of the species as a standard test species for marine bioassay. Tolerance on salinity and pH, sensitivity on the reference materials(copper sulfate and cadmium chloride) and response on the ocean dumping materials(waste sludge) we re tested to identify if the species satisfy the basic criteria as standard species for marine bioassay. The nauplius of the species($100{\sim}200{\mu}m$) showed wide tolerance on salinity with >90.0% survival rates exposed to $5.0{\sim}35.0psu$ for 48 h. Wide adaptability on pH's were also observed from 6.3 to 8.2 with >90.0% survival rates during the test. $LC_{50}$ values for copper sulfate and cadmium chloride were $3.6{\pm}0.7ppm,\;1.7{\pm}0.8ppm$, respectively. The variations in mortality between replicates were less than 10.0%. Comparison of $LC_{50}$ values indicated that T. japonicus nauplius was lower sensitive to copper sulfate than the most marine crustaceans included copepods, however, the sensitivity of test animal to cadmium chloride higher than the adults of copepod T. japonicus, Paracalanus parvus, and marine rotifer Brachinonus plicatilis. There were significant concentration-response relationship in the mortality of T. japonicus nauplius using the elutriates of three ocean dumping materials(industrial waste sludge). 48 h $LC_{50}$ values we re $31.1{\pm}1.1%$ for the elutriate of sludge from leather processing company and $54.4{\pm}15.1%$ for that of dye production company. Based on the above experimental results, bioassay using benthic harpacticoid T. japonicus nauplius must be a good estimation tool for marine ecotoxicological assessment of waste or chemicals. Wide tolerance on the salinity and pH, and significant linear relationship between concentration and response(mortality) supported the high potential of the species as a standard test species.

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Isolation and Optimization of Cultivating Conditions of Alkalophilic Strains for Biodegradation of Azo Dye (Azo 염료의 분해를 위한 호알카리성 균주의 분리 및 배양조건의 최적화)

  • Kim, Jeong-Mog;Chung, Hyun-Chae;Kwon, Oh-Jin
    • KSBB Journal
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    • v.14 no.6
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    • pp.718-723
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    • 1999
  • In order to treat of alkaline dye-processing wastewater, alkalophilic strains biodegrading azo dye, Acid red 1, is isolated from natural system, and optimal culture conditions are examined using response surface analysis, statistical analysis system program. 15 different species which grow in alkaline culture media are isolated from the effluent and river soil discharged from wastewater treatment plant in dye industrial complex. One strain which has the best decolorization efficiency is chosen, and named as AR-1. The result of the examination of carbon, nitrogen and phosphorus sources which have influence on growth and decolorization reveals that optimum carbon, nitrogen and phosphorus sources are 1.0% fructose, 1.0% polypeptone, 1.0% yeast extract and 0.5% $K_2HPO_4$, respectively. In order to optimize of biodegradation conditions of dye by response surface analysis, the characteristics of decolorization and cell growth according to culture temperature and time are monitered. The result shows that the one is optimum 34.77$^{\circ}C$ for 12.97 hours; the other at 34.73$^{\circ}C$ for 12.96 hours. While, optimal conditions of culture that satisfy both cell growth and decolorization are the temperatures from 32.86$^{\circ}C$ to 36.36$^{\circ}C$ and the period of 10.96 to 15.75 hours, respectively.

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Composition of Cotton Textile Dyeing Process Wastewater and its Treatment Characteristics by Ionized Gas (면섬유염색폐수의 공정별 폐수성상과 이온화가스에 의한 처리특성)

  • Lim, Gyeong-Eun;Chung, Paul-gene;Kwon, Ji-Young;Lee, Eun-Ju
    • Journal of Korean Society on Water Environment
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    • v.23 no.3
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    • pp.303-308
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    • 2007
  • Three types dyeing wastewater (dark, medium, light color) discharged from cotton textile dyeing with reactive dye was collected at each step of process. Each process dying wastewater was analyzed and treated by ionized gas. The analysis focused on $COD_{Cr}$, SS and color. Bleaching & scouring process wastewater has the highest $COD_{Cr}$ value in the three type dyeing wastewater. SS shows the highest value at dyeing process wastewater in dark and medium color but light color has at finishing process wastewater. The result of process wastewater treatment by ionized gas was that the ionized gas was effective in $COD_{Cr}$ removing of bleaching & scouring process and finishing process wastewater but was not good at dyeing process wastewater. From that result it is estimated that the ionized gas could not work in opening the aromatic ring and react only in aliphatic component of the molecule. Because the surfactants contained in bleaching & scouring process and finishing process wastewater have only one aromatic ring in its molecular structure, in contrast with the reactive dye compounds consist of aromatic rings great part of its molecular structure. The color almost removed in 1.5 hrs reaction time but $COD_{Cr}$ removal effiency was only 30.7% through 3hrs in 1500 mL of total dyeing wastewater treated by 10 L/min ionized gas.

Decolorization of dye solution using membrane bioreactor (MBR) by Trametes versicolor (막생물반응기(MBR)에 의한 염료용액의 처리연구)

  • Lee, Yuri;Kim, Hyun-Gi;Park, Chulhwan;Lee, Byunghwan;Kim, Sangyong
    • Clean Technology
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    • v.10 no.3
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    • pp.131-137
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    • 2004
  • Due to the low biodegradability of dyes, conventional biological wastewater treatment systems are inefficient in treating textile wastewater. In this study, white rot fungus, Trametes versicolor KCTC 16781, were investigated for the decolorization of Reactive black 5 solutions. This fungus was able to degrade the dye solutions by the ligninolytic enzymes (laccase and MnP) produced. The enzyme activity remained constant until the end of reaction. The combined process of biological treatment and ceramic membrane showed better efficiency for decolorization and TOC removal than each single process.

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