생물막 여과장치에 의한 하수의 처리

강용태,조봉연,Kang, Yong-Tae,Cho, Bong-Yeon 한국상하수도협회 1986 水道 Vol.34 No.-

폭기생물막(曝氣生物膜) 여과지(濾過池)의 여과저항(濾過抵抗)에 관한 연구(?究)

강용태,현길수,Kang, Yong Tae,Hyun, Kil Soo 대한토목학회 1992 대한토목학회논문집 Vol.12 No.2

본 연구는 사여과지(砂濾過池)에 대한 여과저항이론(濾過抵抗理論)을 기초로 하여 폭기생물막(曝氣生物膜) 여과지(濾過池)의 여과저항이론을 구명(究明)하는 것이다. 여과저항(濾過抵抗)에 크게 영향을 미치는 인자로는 사여과지의 경우 주로 현탁성 부유물질인 반면에 폭기생물막 여과지의 경우는 여층(濾層)내의 여재(濾材)표면에 부착된 미생물막(微生物膜)의 증식(增殖)과 SS성분의 부착 그리고 상승하는 기포(氣泡)의 정체 등이 여충내의 여재간극(濾材間隙)을 폐새(閉塞)시킴으로서 여과저항(濾過抵抗)을 발생시킨다. 이러한 영향 인자들은 사여과저항(砂濾過抵抗) 이론(理論)에 접목시킨 결과 폭기생물막(曝氣生物膜) 이론식(理論式)을 도출할 수 있었다. 따라서 본 연구에서 제안된 폭기생물막 여과저항 이론식을 pilot plant를 통한 수처리실험(水處理實驗) 결과 이론치와 실험치가 잘 일치함을 보임으로서 실제 여과지(濾過池) 설계시 적용가능함을 알 수 있었다. The purpose of this research, through kinetic analyses and pilot plant experimentation of biofilm filtration reactor, is to study the theoretical equation of head loss in the Biofilm Reactor. The Head loss in the biofilm reactor has occurred due to the biofilm growth and the adhesion to the media surface and stagnation of upflow air bubble, which have caused the pore spaces to become smaller. On a basis of the head loss theory of sand filtration, therefore, the following equation of head loss for the biofilm reactor was proposed from this research results and proved to be possible to apply the equation for practical design of the biofilm filter. $h={\frac{h_o}{L}}{\int}^L_00.58\exp[-4.5){\sigma}_B)][{\frac{1-{\varepsilon}_o+({\sigma}_B)}{1-{\varepsilon}_o}}]^2{[\frac{{\varepsilon}_o}{{\varepsilon}_o-({{\varepsilon}_B)}}]^3dz$ here ${\sigma}_B=0.130+0.001{\theta}$.

터널폐수 처리를 위한 여과공정의 운전조건 결정

강용태 ( Yong Tae Kang ),송근관 ( Kune Kwan Song ),손정호 ( Jeong Ho Sohn ),김연은 ( Yun Eun Kim ),배종환 ( Jong Hwan Bae ) 한국물환경학회 ( 구 한국수질보전학회 ) 2012 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2012 No.-

원수농도에 따른 ASA법의 처리특성 및 질소제거를 위한 동역학적 계수에 관한 연구

강용태 ( Yong Tae Kang ),조용현 ( Yong Hyun Cho ) 한국수처리학회 2005 한국수처리학회지 Vol.13 No.2

ASA공법의 처리특성 및 단위공정별 물질수지에 관한 연구

강용태 ( Yong Tae Kang ),조용현 ( Yong Hyun Cho ) 한국수처리학회 2007 한국수처리학회지 Vol.15 No.1

생물학적 처리와 활성탄여과를 결합한 염색폐수의 처리

강용태 ( Yong Tae Kang ),원태준 ( Tae Jun Won ),송근관 ( Kune Kwan Song ),조용현 ( Yong Hyun Cho ),한상윤 ( Sang Yun Han ) 한국물환경학회 2008 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2008 No.-

고도침지분리막 시스템의 처리특성에 관한 연구

강용태 ( Yong Tae Kang ),조용현 ( Yong Hyun Cho ) 한국수처리학회 2004 한국수처리학회지 Vol.12 No.4

N/A The purpose of this study is to present a stringent nutrient removal requirement as well as water reuse standards. The advanced submerged membrane bioreactor(ASMBR) system has been consisted of anoxic relector and aerobic tank with the immersed plate membrane. The pilot-scale plant could be carried out with the treatment capacity of 50m³/day and HRT 5.7h. The mass balance equations of the ASMBR system including organic matters and nitrogen could be practically applied to design a new wastewater treatment facility. The following is summarized as resulted in this study. In the ASMBR system treatment characteristics, the removal efficiencies of BOO ranged from 96.5% to 98.5% and COD from 92.9% to 97.0%. The removal efficiencies are shown 99.5~99.8% for the turbidity and 86.1~96.9% for the color. The good removal results were also observed for the SS and the total coliform. These results could be applied to a good effluent for suitable standards of the reuse water. For nitrogen removal with the recycle ratios of 1~3, the removal efficiencies of T-N have been revealed as 54.1%, 69.8%, 76.6% and 81.9%, respectively. The T-N removal efficiencies are improved as 15.7% for 1.5Q to 22.5% for 2Q and finally 27.8% for 3Q more than 1Q. However NH^(+)₄-N removal efficiencies show 91.5% for 1Q, 93.4% for 1.5%, 91.0% for 2Q and 89.7% for 3Q, which it indicates the decrease in proportion to the increase of the recycle ratios.

오존을 이용한 하수2차 처리수의 처리 및 슬러지 감량화에 관한 연구

강용태 ( Yong Tae Kang ),조용현 ( Yong Hyun Cho ),장성부 ( Sung Pu Chang ),최선영 ( Sun Young Choi ) 한국수처리학회 2004 한국수처리학회지 Vol.12 No.2

N/A Nowadays, most of water source is deteriorating due to depending on surface water more than 90%. New disinfection facilities are urgent because a provision of total coliforms was made newly and have gone into effect since in January 2003 for securing of water source . And waste sludge treatment is an outstanding environment question because of several reasons such as increases of waste sludge, high cost of waste sludge treatment and prohibition of sludge treatment method having been utilized. In this study, specific characteristics of ozone treatment for wastewater effluent and volume reduction of waste sludge were studied with pilot-plant. The results of the study are followed ; A removal efficiencies of total-coliforms with ozone dose change of 1.6, 2.6, 3.5, 4.5gO₃/m³Water were 73.7, 88.1, 95.6, 97.2% ,respectively. And MLSS reduction rate of waste sludge with ozone dose change of 0.2, 0.4, 0.6, 0.8gO₃/gSS were 38.0, 50.0, 57.9, 62.0% ,respectively. COD_(Mn) removal efficiency of that was 50.5 65.0, 76.6, 82.1% respectively and SV_(30) reduced 92.6% even if ozone dose was 0.2gO₃/gSS. Therefore, it is found that ozone treatment is very effective for sludge volume reduction and solid liquid separation.

ASAM 시스템의 질소제거에 관한 동력학적 해석

강용태 ( Kang Yong Tae ),김태기 ( Kim Tae Gi ) 한국수처리학회 2004 한국수처리학회지 Vol.12 No.1

N/A The purpose of this study is to investigate the kinetic analysis and characteristics of advanced wastewater treatment on ASAM(Advanced Step Aeration Medialsystem using submerged media in aerobic and reaerobic reactor. Pilot-plant was carried out with treatment capacity of 10㎥/day and HRT 6.2hr. The ASAM system is a device that is available to introduce the advanced wastewater treatment process which can retrofit the operating wastewater treatment facilities using activated Sludge process without expansion of facility area. Using media in aerobic and reaerobic reactor resulted in increase of biomass, and by improving the nitrification rate at low temperature the nitrogen removal efficiency was improved. This study shows that the Mass balance equation of the ASAM system can be practically applied to design wastewater treatment facilities.

도시하수 전처리를 위한 고속생물막 침전지의 특성에 관한 연구

강용태 ( Kang Yong Tae ),장성부 ( Jang Seong Bu ) 한국수처리학회 2003 한국수처리학회지 Vol.11 No.4

N/A It is not easy to find reasonable area for construction of wastewater treatment facility, and biological treatment such as a conventional activated sludge process can`t remove non-point source pollutant in initial rainfall, sufficiently. So if we use bio-physical treatment as pre-treatment and disinfection process, combined sewer overflows don`t cause significant pollution. First of all, we thought the site can be reduced by the reduction of HRT(hydraulic retention time). In this study, to reduce HRT of wastewater treatment facility, the rapid biofilter clarifier was cofigurated and its characteristics were analyzed according to the velocity of filtration and cycles of backwash. Specific characteristics of the rapid biofilter clarifier with 50 ㎥/d of volume were represented that Turbidity and SS removal rate was 30.2%, 30.9% respectively, and that of BOD and COD was 22.0%, 21.0% without regard to change of quality of raw water. By comparing the rapid biofilter clarifier and sedimentation of conventional activated sludge process with haveing 50㎥/㎡· of surface-loading rate and 2.0m of depth, we could know the rapid biofilter clarifier could reduce area of clarifier 11 times as much than that of conventional activated sludge process. Cycle of backwash was represented as 24, 18 and 24 hours when velocity of filtration was 222㎥/㎡·d, 333㎥/㎡·d and 555㎥/㎡·d, and BOD, SS biologically removed in the rapid biofilter clarifier was 342.80, 346.82 g/d, 258.08, 222.72 g/d, and 142.36, 136.52g/d respectively.