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한국수처리학회지 update

Journal of Korea Society of Water Science and Technology

  • : 한국수처리학회(구 한국수처리기술연구회)
  • : 공학분야  >  환경공학
  • : KCI등재
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  • : 연속간행물
  • : 격월
  • : 1225-7192
  • : 2289-0076
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수록정보
수록범위 : 1권1호(1993)~29권3호(2021) |수록논문 수 : 1,372
한국수처리학회지
29권3호(2021년 06월) 수록논문
최근 권호 논문
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KCI등재

1장기운영을 통한 친환경 수처리 기술의 하천수 수질개선 효율 평가

저자 : 한소정 ( Han So Jeong ) , 김병군 ( Kim Byung Goon ) , 김동섭 ( Kim Dong Sup ) , 강석형 ( Kang Suk Hyung ) , 이선주 ( Lee Sun Ju ) , 유혜원 ( Yu Hye Weon ) , 조유진 ( Jo Yu Jin ) , 김홍석 ( Kim Hong Suck )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 29권 3호 발행 연도 : 2021 페이지 : pp. 3-14 (12 pages)

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Eco-friendly water treatment technology is emerging as a countermeasure to improve the quality of river water and source water. Among various eco-friendly water treatment technologies such as subsurface flow (SSF) and surface flow (SF) wetlands, vertical flow constructed wetland (VFCW) which is one of the SSF wetland is being used in the Netherlands as post-treatment for decentralized sewage treatment plants due to greater cold tolerance than general SF wetlands. In addition, SSF wetlands are less affected by seasonal water temperature fluctuations than SF wetlands, so they have the advantage of providing stable water treatment. In this study, an eco-friendly water treatment test-bed was installed for evaluation of applicability on river water (Yeongsan river water) at near Seung-chon weir and was operated for more than one year. A VFCW with 0.4 m/d showed excellent treatment efficiency of 83.8% turbidity 83.8%, SS 95.6%, BOD 93.6%, and T-P 73.7% and showed low treatment efficiency of 33.8% TOC and 31.0% T-N. At 1m/day, the treatment efficiency was similar to 0.4m/day. However, in the case of 2m/day or more, the treatment efficiency tended to decrease somewhat as the filtration speed increased. In the seasonal evaluation, there was little change in treatment efficiency by season in most of the water quality items except for T-N. As a result of organic material characterization, the proportion of non-degradable organic matter in both accounted for most of 74.4~81.4%, resulting in a low treatment efficiency of about 5.7%.

KCI등재

2생물학적 질소 제거를 위한 생물담체 공정의 최근 동향 - 리뷰

저자 : 제스민아터 ( Jesmin Akter ) , 이재엽 ( Jaiyeop Lee ) , 김일호 ( Ilho Kim )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 29권 3호 발행 연도 : 2021 페이지 : pp. 15-25 (11 pages)

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Biological nitrogen (N) removal with the bio-media process has been the preferred technology and recent developments in this technology have focused on improving N removal. However, integrated fixed film activated sludge, external nitrification, membrane, aerobic granulation BNR systems and more efficient N removal bioprocesses have been developed nowadays. To achieve N removal more efficiently, methods of nitrification and denitrification have been developed by preventing nitrate formation and enforcing nitrification-denitrification over nitrite. The process requires less oxygen and organics than nitrification-denitrification over nitrate allowing lower N concentrations to be achieved for the same influent organic's concentration and oxygen supply. Biological filtration process using the bio-media technique that utilizes micro-organisms to remove nutrients from the wastewater. A recent study has been shown that various bio-media efficiently used for the nitrification-denitrification process, also the growth of biofilm is the potential for ammonia removal. Moreover, this technology applies to a wide range and effective in removing up to 90-95% nutrients from the effluents. Therefore, the specific surface area of bio-media is available for bio-film growth depends on media types. The main purpose of this review paper is to study the application and performance of different bio-media and their removal efficiency using biological biofilm process.

KCI등재

3MBR공정의 운전조건의 변화에 따른 여과성능 개선연구

저자 : 정훈섭 ( Hoon-sup Jung ) , 송인수 ( In-soo Song ) , 현길수 ( Kil-soo Hyun )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 29권 3호 발행 연도 : 2021 페이지 : pp. 27-33 (7 pages)

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Membrane bioreactor (MBR) combining an activated sludge process and membrane filtration could achieve high nutrient removal efficiency and complete biomass retention without a secondary clarifier. Membrane fouling remains the most challenging issue in MBR operation and attracts considerable attention in MBR studies. The objective of this study is to investigate the influence of permeate flux, aeration mode and strength, and mixed liquor suspended solid (MLSS) on membrane filtration of small-scale MBR (the capacity 100㎥/d), which consisted of anaerobic, anoxic, and aeration tank coupled with membrane. Experiments were conducted with real MBR using real wastewater (BOD <250 mg/L, COD <220 mg/L, T-N <65 mg/L, T-P <8 mg/L, E-coli <100,000 no/mL). As a result, the increase of both permeate flux and MLSS increased TMP of MBR while the increase of aeration strength decreased the TMP. Compared to the existing operation conditions of MBR, the operation conditions of shorter filtration time (8 min on/ 2 min off) for a cycle and lower MLSS (<3000 mg/L) in MBR resulted in longer filtration duration time (about two times) as well as the reduction of cleaning chemical.

KCI등재

4가압펌프와 공기포화탱크를 연계한 하이브리드형 미세기포 발생장치의 운전특성

저자 : 김원재 ( Weon-jae Kim )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 29권 3호 발행 연도 : 2021 페이지 : pp. 35-48 (14 pages)

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Dissolved air flotation (DAF) process has been applied to the entire environmental fields. The micro-bubble generator, which is a key facility in DAF process, can be classified according to its generation methodology. In Korea, saturator and DAF-pump types are widely utilized. The feature of saturator type is the application of an air saturation tank (AST), and it has a disadvantage in that operation and maintenance are not easy due to relatively complicated facilities. On the other hand, DAF-pump type uses a micro-bubble generating pump (MGP) alone, so the device configuration is very simple, but the ranges of optimal operating conditions are narrow. In this study, a new hybrid-type microbubble generator has been developed by linking a pressure pump and an AST by converging the advantages of the existing saturator and DAF-pump types. As a result of examining the operation characteristics of this microbubble generator including operating pressure, air flow rate, water flow rate, power consumption, A/W ratio (air/water ratio), DO, and particle size distribution, the appropriate operating conditions could be determined as operating pressure of 4.0 - 6.0 kgf/㎠, air flow rate of 4.0 - 5.0 L/min, water flow rate of 57 - 68 L/min, and A/W ratio of 5.9 - 8.7%. The average diameter of the generated microbubbles showed a stable distribution in the range of 25.0 - 26.7 μm. Based on the above results, it could be verified that the novel hybrid-type microbubble generator had excellent performance at a level that can be applied to the field.

KCI등재

5분리막 전처리공정인 사여과층의 여과성능평가

저자 : 김지연 ( Ji-yeon Kim ) , 현길수 ( Kil-soo Hyun )

발행기관 : 한국수처리학회(구 한국수처리기술연구회) 간행물 : 한국수처리학회지 29권 3호 발행 연도 : 2021 페이지 : pp. 49-56 (8 pages)

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Membrane fouling due to the accumulation of natural organic matter, inorganic components and colloidal/particulate matter on the surface and/or in the pores of the membrane decreases the membrane permeability and therefore impedes the implementation and efficient performance of membranes in the production of drinking water regardless of influent water quality. The objective of this study was carried out to investigate the operating conditions of sand filteration (SF) influencing the permeability performance and fouling of membrane filtration (MF) processes. Applied filtration rates during this experiment were <120 m/d for the SF and 0.5 ㎥/㎡.d for MF. Influent concentration were on average turbidity <130 ntu and total organic carbon (TOC) <11 mg/L. As a result, both SF process and SF/MF system achieved the efficiencies of more than 90% in removing turbid matter, while the removal efficiency of TOC were 10-30% for SF process and 40-60% for SF/MF system. The SF/MF system achieved 2 times higher than that of SF process in removing TOC due to biofiltration by the bio-cake layer formed on the surface of media. For transmembrane pressure (TMP), TMP increasing rate of MF was in proportion to an increasing rate of turbid and organic matters. These results indicate that the introduction of the biofilm sand filter prior to MF process is necessary for membrane fouling mitigation.

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1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

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(2006)홍길동심리학41회 피인용

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(2006)홍길동41회 피인용

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