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한국환경기술학회> 한국환경기술학회지> 하수처리수의 공업용수 재이용을 위한 BIRM-UF-RO 시스템의 현장적용 연구

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하수처리수의 공업용수 재이용을 위한 BIRM-UF-RO 시스템의 현장적용 연구

Application Study of BIRM-UF-RO System for Industrial Water Reuse in Wastewater Treatment Plant

최영익 ( Young-ik Choi ) , 정진희 ( Jin-hee Jung ) , 정병길 ( Byung-gil Jung )
  • : 한국환경기술학회
  • : 한국환경기술학회지 21권3호
  • : 연속간행물
  • : 2020년 06월
  • : 196-204(9pages)

DOI

10.26511/JKSET.21.3.3


목차

Ⅰ. Introduction
Ⅱ. Experimental Devices and Methods
Ⅲ. Results and Discussions
Ⅳ. Conclusions
References

키워드 보기


초록 보기


						
The objective of this research is to propose an effective water reclamation system that makes use of membrane processes for the effluent at a domestic treatment plant located within an industrial complex. At such a plant, many types of industrial wastewater are discharged (e.g., textile, leather, and plating wastewater). We will attempt to demonstrate the production of a stable water quantity that is of sufficient quality, and to provide effective methods to use brine water for industrial water reuse. The wastewater treatment plant (WWTP) under study is located in Busan City, South Korea, and it has a capacity of 60,000 m3/d. The water quality fluctuates heavily because of the different types of wastewater discharged from the industrial complex into the WWTP. Membrane processes are run to treat the WWTP effluent. The membrane system consists of ultrafiltration (UF) and reverse osmosis (RO), which processes 70 m3/d. The mean concentrations of the total dissolved solids (TDS) and Mn in the WWTP effluent were 3,500-5,500 mg/L and above 0.5 mg/L, respectively. As a result, a Birm filter (BF) was employed prior to UF for the purpose of stabilization, and the BF-UF-RO membrane system was designed and operated. The membrane processes were able to produce 70 m3/d. The treatment process of the brine water was also evaluated via material balance. Adding the brine water into the primary clarifier enables production of more than 30,000 m3/d of permeate water. Hereafter, we will be able to present an effective water reuse system using a scale-up of this process.

UCI(KEPA)

간행물정보

  • : 공학분야  > 환경공학
  • : KCI등재
  • :
  • : 격월
  • : 1229-8425
  • : 2635-7437
  • : 학술지
  • : 연속간행물
  • : 2000-2020
  • : 1063


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1전처리 패각의 흡착을 이용한 수용액의 카드뮴 제거

저자 : 김우항 ( Woohang Kim )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 179-187 (9 pages)

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Waste oyster shells that are causing some environmental problems are needed to be reused as adsorption material. This study was to investigate the cadmium sorption of pre-treated oyster shells. It was confirmed that main component of pre-treated oyster shells were changed from calcite to calcium oxide and calcium phosphate by XRD. Removal efficiencies of cadmium for POS, COS and OS were 99 %, 96 % and 90 % at 1 g/L of sorbent dosage. Removal efficiency of cadmium for POS was not affected by variation in pH whereas its removal efficiencies for OS and COS were strongly affected at low pH. General trend of cadmium removal efficiency at changing of sorbents amount occurred in the following order: POS > COS> OS. Kinetic models were well fitted to pseudo-second order with R2 values of 1.00 at the all the sorbents. These adsorptions appear to follow the Langmuir isotherm very well with the range of 0.992 ~ 0.999 of correlation coefficients. It can be said cadmium was removed by the monolayer adsorption on the surface of the POS because the Langmuir model gave a better fit of the data than that of the Freundlich model for POS. The maximum adsorption capacity (qmax) was increased more than 2 times for COS and more than 4 times for POS. These results show that oyster shells with calcination (COS) and phosphoric acid treatment (POS) can be good adsorbents for cadmium removal.

2관상어 사육에 있어서 효율적 수질관리를 위한 소성 고막패각 황토볼의 적용

저자 : 서하나 ( Ha-na Seo ) , 김경일 ( Kyeong-il Kim ) , 박상진 ( Sang-jin Park ) , 공병욱 ( Byeong-wook Kong ) , 라덕관 ( Deog-gwan Ra ) , 정정조 ( Cheong-jo Cheong )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 188-195 (8 pages)

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The purpose of this study was to investigate the efficient management of water quality by control of pH and phosphate using loess ball with added calcined ark shell in ornamental fish culture. It was found that a lower shell content and a higher calcination temperature resulted in a higher compressive strength. The porosity increased as the diameter of loss ball increased. The optimum compressive strength, pH increase, and phosphate removal rate were achieved using loess balls with added calcined shell content of 6 % and a calcined temperature of 900 ℃. When loess balls with a diameter of 10 mm were used at a dosage of 25 g/L, the pH increased from 6.5 to 10.5 and the phosphate removal was 93.4 %. At a dosage of 50 g/L or more, the pH increased from 6.5 to 11.0 and phosphate removal was 99.9 %. The increase in pH and phosphate removal was a result of higher shell content, lower calcination temperature, and smaller ball diameter. It is expected that decreasing pH and green algae buildup, which are the problems in ornamental fish culture, can be reduced using loess balls with added calcined shells.

3하수처리수의 공업용수 재이용을 위한 BIRM-UF-RO 시스템의 현장적용 연구

저자 : 최영익 ( Young-ik Choi ) , 정진희 ( Jin-hee Jung ) , 정병길 ( Byung-gil Jung )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 196-204 (9 pages)

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(기관인증 필요)

초록보기

The objective of this research is to propose an effective water reclamation system that makes use of membrane processes for the effluent at a domestic treatment plant located within an industrial complex. At such a plant, many types of industrial wastewater are discharged (e.g., textile, leather, and plating wastewater). We will attempt to demonstrate the production of a stable water quantity that is of sufficient quality, and to provide effective methods to use brine water for industrial water reuse. The wastewater treatment plant (WWTP) under study is located in Busan City, South Korea, and it has a capacity of 60,000 m3/d. The water quality fluctuates heavily because of the different types of wastewater discharged from the industrial complex into the WWTP. Membrane processes are run to treat the WWTP effluent. The membrane system consists of ultrafiltration (UF) and reverse osmosis (RO), which processes 70 m3/d. The mean concentrations of the total dissolved solids (TDS) and Mn in the WWTP effluent were 3,500-5,500 mg/L and above 0.5 mg/L, respectively. As a result, a Birm filter (BF) was employed prior to UF for the purpose of stabilization, and the BF-UF-RO membrane system was designed and operated. The membrane processes were able to produce 70 m3/d. The treatment process of the brine water was also evaluated via material balance. Adding the brine water into the primary clarifier enables production of more than 30,000 m3/d of permeate water. Hereafter, we will be able to present an effective water reuse system using a scale-up of this process.

4지역기후변화가 21세기 강수 변동성에 미치는 영향

저자 : 김도용 ( Do-yong Kim )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 205-210 (6 pages)

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In this study, the effect of regional climate change on precipitation in the 21st century was investigated in Mokpo city, using RCP(Representative Concentration Pathways) 4.5 and RCP 8.5 climate change scenarios. The annual precipitation in the last 21st century was projected to increase 6.12 %(RCP 4.5) and 13.41 %(RCP 8.5) with the 30-years variations of +46.36 mm(RCP 4.5) and +94.50 mm(RCP 8.5). The annual precipitation intensity in the last 21st century was projected to increase 8.64 %(RCP 4.5) and 14.84 %(RCP 8.5) with the 30-years variations of +0.695 mm/day(RCP 4.5) and +1.160 mm/day(RCP 8.5). The annual heavy rain days in the last 21st century were projected to increase 8.33 %(RCP 4.5) and 50 %(RCP 8.5) with the 30-years variations of +0.116 days(RCP 4.5) and +0.754 days(RCP 8.5).

5가스터빈 연소기 파일로트 노즐 화염형식이 연소상태 변화에 미치는 영향 고찰

저자 : 유원주 ( Won-ju Yu ) , 김성후 ( Sung-hoo Kim ) , 정진도 ( Jin-do Chung )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 211-217 (7 pages)

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In this study, the combustion characteristics were tested for the M501J gas turbine by converting the pilot nozzle type from diffusion flame to premix flame at 100MW. In the experiment contents, the relationship between nitrogen oxide emission concentration, combustion dynamic pressure and exhaust temperature were measured by changing the pilot flame type and fuel fraction of the gas turbine combustor nozzles. Experimental results show that the nitrogen oxide emission concentration is reduced by 75 % when the pilot nozzle is switched from diffusion flame to premixed flame. However, in the case of premixed flame, combustion dynamic pressure increased by 20 % and the frequency was higher than diffusion flame. And there was no significant change in exhaust temperature.

6알칼리수를 활용한 연속식 조류제거에 관한 연구

저자 : 유찬서 ( Chan-seo You ) , 배수현 ( Su-hyun Bae ) , 김영규 ( Young-kyu Kim ) , 정정조 ( Cheong-jo Cheong ) , 라덕관 ( Deog-gwan Ra )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 218-224 (7 pages)

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Alkaline water was used as a flocculant to remove the low concentration algae and to the high concentration microalgae in Chlorophyll-a concentration exceeding 105 mg/m3. After conducting a series of continuous experiment, the removal efficiency was calculated, and the applicability of the site was reviewed as follows. In expressing the removal efficiency of algae, the turbidity, DCW(Dry Cell Weight), OD(Optical Density), Chlorophyll-a, and PO4-P removal efficiency were measured to be 67.9 %, 63.8 %, 63.7 %, 74.5 %, and 59.8 % in low concentration algae experiments. And in the case of high concentration microalgae, those were shown as 89.0 %, 87.4 %, 87.6 %, 91.5 %, and 78.0 %. The flocculated sludge of the microalgae produced in the continuous experiment was collected and settled for 30 minutes in Imhoff-cone, and the measured concentration of Chlorophyll-a in the sludge was 47,810 mg/m3, similar to 48,800 mg/m3 in the batch experiment. When alkaline water is used as a flocculant for algae removal, it is suitable for the removal of high concentration microalgae than low concentration algae, and the removal efficiency of high concentration microalgae is about 90 %, so it is thought to be appliable in site.

7술폰형 poly-GMA의 합성 및 암모니아성 질소 흡착 특성

저자 : 나춘기 ( Choon-ki Na ) , 송재준 ( Jee-june Song )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 225-232 (8 pages)

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This research investigated the synthesis of sulfonated poly-glycidyl methacrylate(poly-GMA) and its feasibility as a sorbent for removal of ammonia from aqueous solution. The poly-GMA was prepared by the radical polymerization of GMA using K2S2O8 as initiator and MBA as cross-linker. The epoxy groups in the poly-GMA were effectively sulfonated by reaction with 10 % Na2SO3 solution in isopropyl alcohol(15 %) and deionized water(75 %) at 60 ℃ for 3 h. The sulfonated poly-GMA had superior sorption capacity for NH4-N compared to the commercially available cation-exchange resin. The maximum sorption capacity of the sulfonated poly-GMA for NH4-N was 37.5 mg/g. The experimental sorption data were well fit with the Langmuir isotherm and the pseudo-second order kinetic model. The sorption energy(E) calculated from D-R model was 10.51 kJ/mol indicating that the ammonia sorption of sulfonated poly-GMA is controlled by the ion-exchange process. The sulfonated poly-GMA sorbent could be regenerated in more than five times by a simple acid washing process without any reduction of the sorption capacity.

8EPANET 모형에 의한 계통별 상수관로 유속계수 평가

저자 : 김경오 ( Kyeoung-oh Kim ) , 김세민 ( Se-min Kim ) , 송용식 ( Yong-sik Song ) , 박영기 ( Young-ki Park )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 233-239 (7 pages)

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This study, the EPANET model was used to simulate changes of hydraulic in the system through analysis method of the water supply pipeline, after collecting the data such as the pressure and flow rate with field measurement data in the study site. Acoordingly, this study used the pressure, water level and pipeline network to determine the Hazen-Williams C Value of the pipeline according to characteristics of system for J-City. therefore, C Value with the smallest margin of error was determined and used as the actual measurement value at the non-observation point to determine the C Value. A correlation analysis was conducted to analyze the relationship between the collected C Value and the physical impact factors in the system. therefore, the C Value presented in this study can be used as reference of the pipeline network at the J-city watershed in the future. When C Value estimated, we proposed a method to estimated the C Value more reliably.

9사회적 환경변화에 따른 정수기 기술의 진화

저자 : 김동환 ( Dong Hwan Kim ) , 이성호 ( Sung Ho Lee )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 240-248 (9 pages)

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This study was performed to explore new strategies for the water purifier market in the future convergence era through research on the technological evolution process of the water purifier industry according to social environment changes, which leads the private market in the water industry. Technical data analysis was done using Korea Water Purifier Industry Cooperative's patented technology of companies, sales status of water purifier from the Ministry of Environment white paper, analysis data from the Ungjin Coway Institute of Technology, technical data from SK Magic, social environmental factors, and the Korea Press Foundation's "BIG KINDS" where the news big data analysis system was established was used to analyze the correlation between the early and present social changes in the water purifier industry. In the water industry, the water purifier industry tends to be more vulnerable than technical research in other water industries. However, the water purifier industry is a very important area in the private sector, and there is a high possibility of market expansion even in overseas expansion. Based on the technical research of the water purifier industry, it can be a model for technological development of the water industry as a whole, so its value is high. This study can be contribute the technology research of purifier industry by presenting standard of technology development.

10한일 고대 水利 유적의 비교 연구 (벽골제(碧骨堤)와 사야마이케(狹山池)를 중심으로)

저자 : 김민환 ( Min-hwan Kim ) , 장명호 ( Myung-ho Jang )

발행기관 : 한국환경기술학회 간행물 : 한국환경기술학회지 21권 3호 발행 연도 : 2020 페이지 : pp. 249-258 (10 pages)

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Byeokgolje and Sayamaike(reservoir) are ancient water management remains of East Asia. Gimje City and Sayama City are working together to register this remains as a UNESCO World Heritage Site. It was confirmed that the civil engineering technology applied to the Byeokgolje was applied to Sayamaike. We examined the process of construction of Byeokgolje and Sayamaike, described the present state of the reservoir, and examined future utilization plans. Byeokgolje was completed in 313 and the Sayamaike was built in 616. However, Byeokgolje is currently damaged and excavations are under way. Saiyamaike remains in a state where it can grasp the construction process from the beginning to the present. It is preserved so that it can identify the range and timing. In order to preserve and inherit Saiyamaike, a museum is built in Sayama City and used as a place of education. It is believed that the museum contains authenticity and integrity in order to utilize reservoir which is a civil engineering heritage as future local asset. In Korea, it will be necessary to make more efforts to find out the use of Byeokgolje as a regional asset and to establish and implement a conservation plan that contains authenticity and completeness.

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