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한국수처리학회(구 한국수처리기술연구회)> 한국수처리학회지> 알루미늄 전기응집을 이용한 인공구리폐수의 영향인자별 제거율 경향과연속운전 실험결과

KCI등재

알루미늄 전기응집을 이용한 인공구리폐수의 영향인자별 제거율 경향과연속운전 실험결과

Artificial Copper Wastewater Removal Rate Tendency According to Impact Factor and Result of Continuous Operating Experiment by Using Aluminum Electrocoagulation

김진수 ( Jin Su Kim ) , 심재훈 ( Jae Hoon Shim ) , 이한슬 ( Han Seul Lee ) , 신총수 ( Chong Soo Shin ) , 이상철 ( Sang Cheol Lee ) , 이상일 ( Sang Ill Lee )
  • : 한국수처리학회(구 한국수처리기술연구회)
  • : 한국수처리학회지 23권5호
  • : 연속간행물
  • : 2015년 10월
  • : 111-118(8pages)

DOI

http://dx.doi.org/10.17640/KSWST.2015.23.5.111


목차

1. 서 론
2. 실험 및 방법
3. 실험결과 및 고찰
4. 결 론
References

키워드 보기


초록 보기

This study was conducted to evaluate the treatment of copper in wastewater by using electrocoagulation. Most of industrial wastewater has treated to physical and chemical methods because industrial wastewater has biologic toxic. Therefore, electrocoagulation belonging to the electrochemical method is being used in variety of industrial wastewater treatment. It shows mainly high removal efficiency of heavy metal and turbidity. In this study, it was evaluated to copper removal efficiency by pH, reaction time and current density through jar-test experiment. In case of pH, copper concentration was slightly decreased at higher than pH 4. In case of reaction time, copper removal efficiency was 91.6 % at reaction time in 4 minute and more than 98 % at reaction time in after 6 minute. In case of current density, copper removal efficiency was rapidly increased to 0.0058 A/cm2. Base on value of jar-test experiment, continuous operating of electrocoagulation experiment was applied the hydraulic retention time(HRT) 4 minute and current density 0.0167 A/cm2. pH of wastewater was not changed. Results, average copper removal efficiency was 74.7 % and maximum removal efficiency was 79.1 % while operating 110 minute.

ECN

ECN-0102-2016-530-000249525


UCI

I410-ECN-0102-2016-530-000249525

간행물정보

  • : 공학분야  > 환경공학
  • : KCI 등재
  • : -
  • : 격월
  • : 1225-7192
  • : 2289-0076
  • : 학술지
  • : 연속간행물
  • : 1993-2018
  • : 1219


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1LC-OCD를 이용한 열수분해 여과-탈리액내 유기물 조성특성 평가

저자 : 김연권 ( Youn Kwon Kim ) , 최일환 ( Il Hwan Choi )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 3-12 (10 pages)

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In recent year, excess sludge anaerobic digestion by various types of pre-treatment processes have become of high interest. An energy point of view, the most effective technology of pre-treatment processes is Thermal Hydrolysis Process(THP). It was considered as a pre-treatment technique to improve biosolid properties because of the solubilization of particulate organics and promotion of biogas generation. In this study, in order to evaluate the effects of changing organic carbon compounds from THP under a various temperature were measured and analysed using Liquid Chromatography-Organic Carbon Detection(LC-OCD). Results showed that the efficiencies of sludge solubilization and low molecular weight(Mw < 500g/mol) organic carbon formation increased with the increase of the reaction temperature and oxidizer.

2침출수에서 백색부후균에 의한 유기물질 제거

저자 : 정명선 ( Myoung Sun Jeong ) , 김기은 ( Gi Eun Kim )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 13-22 (10 pages)

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Biological degradation of a leachate with microorganisms was studied. Microbial cells could grow up in leachate without adding other substates and extra cellular enzymes were produced. The concentration of ammonia and COD decreased. At the same time we suggest, other substances in leachate would be also degraded by microorganisms. As a starter the culture of white-rot fungi was inoculated in leachate. During 7 days 30% of COD, 82% of BOD and 67% of total ammonia were removed. The reaction velocity of COD and ammonia were 0.01~0.085/day and 0.082~0.179/day, respectively. The removal rate of COD was lowere than that of ammonia, but it means that this microbial degradation can be very useful to treat a leachate with higher ammonia content. In the reactor 18% of ammonia was stripped. The nitrate concentrate was under 1 mg/l and there is a suggestion that the most of ammonia was consumed by microbial cells, because of the low nitrification rate. The comparision of the removal rate between with enzyme addition and without showed that the microbial cultivation and enzyme production will stimulate to the removal of many substances.

3고도처리공정에서 다양한 수질에 따른 미량유기오염물질 제거특성

저자 : 유영범 ( Young Beom Yu ) , 김충환 ( Chung Hwan Kim ) , 권순범 ( Soon Buhm Kwon ) , 최양훈 (

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 23-32 (10 pages)

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Mobile Water Treatment Plant (MWTP) was evaluated for operational parameters, design values and especially removal efficiency of taste and odor compounds (T&Os) as organic micropollutants (OMPs). Geosmin and 2-MIB with a high concentration level i.e., spiked with a range 200 ng/L to 1,300 ng/L of initial concentration could be totally removed by MWTP when AOP, O3/GAC, AOP/GAC hybrid process was operated. It found that removal of T&Os by O3 oxidation and GAC adsorption was affected by a several factors i.e., reaction parameters such as initial concentration and type of organic compounds, water property, especially particulate matters, O3 dosage, retention time.

4Magnetite를 이용한 폐수의 중금속 제거

저자 : 이한슬 ( Han Seul Lee ) , 김진수 ( Jin Su Kim ) , 심재훈 ( Jae Hoon Shim ) , 강민구 ( Min Ko

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 33-40 (8 pages)

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Magnetite(Fe3O4) nanoparticles are used in nanotechnological applications and removal of heavy metals from wastewater. This study investigated the influence of synthesis conditions on the size and shape magnetite(Fe3O4) nanoparticles for the removal of heavy metals. Magnetite size is influenced by synthesis temperature, NH4OH concentration, pH and the atmosphere(O2 and N2). We synthesized the magnetite in two ways. One is by pouring the NH4OH solution(M1) and the other is by injecting in 6 ml/min(M2). Magnetite-M1 and M2 size was 13.58, 8.8 nm. From the Langmuir isotherms, the maximum adsorption capacities towards Cu were Magnetite-M1: 17.04 mg/g and Magnetite-M2: 21.07 mg/g. That data shows the synthesized Magnetite by putting NH4OH solution(6 ml/min) is more property to remove heavymetal from wastewater.

5Clinoptilolite를 이용한 해수중의 구리 및 TCEP(tris-2-chloroethyl phosphate) 동시제거 특성

저자 : 김이태 ( I Tae Kim ) , 안광호 ( Kwang Ho Ahn )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 41-50 (10 pages)

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The adsorption characteristic of clinoptilolite(natural zeolite) with respect to copper ion and TCEP has been studied in artificial seawater. The optimum pH for copper adsorption was pH level 7 and then removal efficiency of copper ion was 83.1 percentages. But in case of TCEP(tris-2-chloroethyl phosphate), TCEP adsorption rate was decreased according to the pH rise. The adsorption capacity of copper ions and TCEP was higher than in the freshwater than in sea water. Adsorption inhibition and blocking effect onto clinoptilolite surface of TCEP were mostly due to OH- ions increasing and structural properties of TCEP. An equilibrium time of 150 minutes was required for the adsorption of copper ion and an equilibrium time of 250 minutes was required for the adsorption of TCEP onto clinoptilolite in artificial seawater. As a result of copper ion and TCEP about Langmuir and Freundlich isotherms, the experimental data for copper ion were better fitted to Freundlich equation than to the Langmuir equation but TCEP data were better fitted to the Langmuir equation than to the Freundlich equation.

6정수 과정에서 발생된 농축 슬러지를 이용한 반류수 중의 총인 제거

저자 : 서정인 ( Jung In Suh )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 51-57 (7 pages)

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This study aims to investigate the effectiveness of thickener sludge generated during the drinking water treatment process for adsorption of phosphorus of supernatant (rejecter water) from 2nd anaerobic digestion tank. Experiments have demonstrated that about 82% phosphorus reduction was confirmed in the rejecter water through the adsorption of phosphorus by aluminum in the thickener sludge in mix ratio of 2:1(volume basis) for the rejecter water and thickener sludge. During the adsorption process of phosphorus, the decrease of phosphorus concentration in the rejecter water accompanied with an increase in pH and sulfate concentration suggests that phosphate replaced the functional groups from the thickener sludge which infers that ligand exchange is the dominating mechanism for phosphate removal.

7슬러지의 특성을 고려한 폭기 생물막 여과지의 여과저항해석

저자 : 현길수 ( Kil Soo Hyun )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 59-66 (8 pages)

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The objective of this study was to establish a kinetic of biofiltration headloss development in biofilm aerated filter (BAF) bed considered a sludge characteristics based on the theory of headloss build-up in the sand filter bed. A kinetic analysis of biofiltration headloss development was based on the theory of sand filtration headloss proposed by Kozeny-Carman. As a result, the substrate removal of the BAF bed at steady state showed an exponential decrease trends with increasing filtration time. A modified biofiltration headloss equation introduced a specific deposit including air bubble and solids such as particle and biomass including suspended solids and soluble microbial products (SMPs) and a corrected coefficient of headloss into the sand filtration equation proved to be applied for the kinetic analysis of biofiltration headloss development in the BAF bed.

8격자크기에 따른 지하수 수위특성 분석

저자 : 박동일 ( Dong Il Park ) , 안승섭 ( Seung Seop Ahn ) , 고병련 ( Byong Byeon Ko ) , 오영훈 ( Y

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 67-80 (14 pages)

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According to the analysis on previous studies of numerical modeling and evaluation of ground water effects, most of them focused on mediating variables, rather than a grid size. The first setting for modeling is a proper grid size of an area to analyze. Therefore, this study used the three-dimensional numerical analysis model MODFLOW to vary a grid size, to estimate an observation level and a calculation level, and to compare the characteristics of ground water. As a result, when the optimal mediating variable with the grid size of 50m×50m was estimated for the initial mediating variable, Mean error was 0.159, Mean absolute error 1.072, Root mean squared error 1.489. Therefore, the target area had applicability of numerical model. In the condition where the optimal mediating variable was fixed and a grid size varied, the model was applied. As a result, just as the value of observation level, the value of determination coefficient was 0.999. It indicated that mediating variable was more sensitive to ground water modeling than a grid size. Nevertheless, in the case of modeling for wells density area or for precision, each grid size was analyzed to be determined according to well in order for more accurate analysis. Therefore, it was found that it was necessary to set a proper grid size and assign each grid size to each well in order to increase accuracy of modeling.

9Scrubber 순환수의 불소제거를 위한 공정개발

저자 : 심재훈 ( Jaehoon Shim ) , 김진수 ( Jinsu Kim ) , 이한슬 ( Hanseul Lee ) , 강민구 ( Minkoo Ka

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 81-88 (8 pages)

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In the process using a variety of hazardous chemicals such as semiconductor or LCD process, hydrochloric acid, hydrofluoric acid, such as harmful chemicals have been discharged into the exhaust gas. In general, in order to remove these exhaust gases, used a scrubber unit at the last stage. The wet scrubber of the scrubber units is makes a droplet through the nozzle by applying pressure to the liquid and the droplets are contacted at suspended gas flow so that suspended dust are collected, and is a device that can also be removed at the same time toxic gases. The wastewater from the wet scrubber in semiconductor process is not only harmful chemicals in the course of recycling, the fluorine compounds are highly concentrated. These fluorine compounds have devised a scrubber wastewater treatment by coagulation and filtration process using alum because it can adversely affect the human health. 94.5% of the fluoride was removed from the coagulation process, ecological toxicity was reduced to zero, the turbidity was removed by filtration to 99.4%.

10막여과 정수처리 공정에서 화학세척을 위한 막세척 지수 평가

저자 : 정혜중 ( Hay Joong Chung ) , 김동진 ( Dong Jin Kim ) , 권순범 ( Soon Buhm Kwon ) , 유영범 (

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 23권 5호 발행 연도 : 2015 페이지 : pp. 89-98 (10 pages)

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Membrane filtration process in water treatment can be an efficient and economical way to separate contaminants, which suspended in water. Membrane fouling is a phenomenon to decrease water flux and increase operating pressure. It is important to normalize a membrane process by cleaning a fouling membrane as well as to predict membrane fouling. However, method of determining the cleaning characteristics of fouling membrane is insufficient. By introducing a new concept of membrane cleaning index (MCI), membrane cleaning mechanism was established by MCI through in this study. Cleaning efficiency of fouling membrane was compared and analyzed quantitatively. Cleaning index value of organic, inorganic and microbes can be indicated by membrane cleaning index. Chemical cleaning efficiency increased applying the result of membrane cleaning index to chemical cleaning. Membrane cleaning index is a useful method to indicate index of membrane cleaning properties and efficiency.

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