http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
상수원수 내 천연유기물질의 계절적 변화와 정수공정에서의 제거특성
배병욱,김영일,임봉수,방미란 ( Byung Uk Bae,Young Il Kim,Bong Su Lim,Mi Ran Bang ) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.2
The seasonal variations of natural organic matters(NOM) in drinking water source and their removal characteristics through water treatment processes were investigated for two kinds of source waters in Kum-River. The quality of raw water at the Chungju water treatment plant(WTP) was stable throughout one year of sampling period. However, the source water at the Puyo WTP showed higher variations in DOC(dissolved organic carbon) and turbidity compared to the Chungju WTP. The SUVA(specific UV absorbance) values of both raw waters were less than 3 and had a trend to decrease after coagulation/sedimentation process. This results indicate that relatively large organic matters which have higher absorptivity per unit DOC might be easily removed during coagulation process. The AHS(aquatic humic substance) contents of both raw waters varied seasonally, but the Puyo WTP had a relatively higher AHS contents than the Chungju WTP. Results from the change in molecular weight distribution(MWD) before and after AHS measurement showed that AHS was mainly composed of organics higher than MW 1,000. The PAC(powdered activated carbon) might be used as an effective method for removing organic matters, especially for AHS, and the addition of PAC before coagulation showed the most satisfactory result with respect to DOC removal.
배병욱(Byung-Uk Bae) 유기성자원학회 1995 유기물자원화 Vol.3 No.2
유가공폐수 처리를 위한 UASB 의 성능과 운전상의 문제점을 조사하였다. 인공 유가공폐수는 부하3.9kg COD/m3. day까지 성공적으로 운전이 가능하였으며, 이 때 90% 이상의 COD 제거율과 단위체적당 1. 23 1/1. day 의 가스가 발생하였다. 그러나,부하 2.1kg COD/m3 .day 에서는 침전부 표변에스컴층이 형성되면서 슬러지부상과 유실이 관찰되었다. 혈청병 (SBT) 실험으로 측정된 우유공장 실폐수와 아이스크림폐수의 생화학적 메탄생성능(BMP) 은 각각 0.135, 0.66ml CH4/mg CODadded 이었다. 반응조의 슬러지 활성도는 식종 초기에 0.159g COD-CH4/g VSS.d 에서 운전 90 일이 경과하 는 동안에 8배 이상 증가하였다. The performance and the operational problems of UASB(Upf!ow Anaerobic Sludge Blanket) reactor for treatment of dairy wastewaters were investigated. Synthetic milk wastewater was successfully treated up to the loading rate of 3.9kg COD/m3.day, with a specific gas production rate of 1. 23 1/1. day and a COD removal efficiency of over 90%. However, the sludge rising was observed at the loading rate of 2.1kg COD/m3.day, due probably to the formation of scum layer at the surface of settling compartment. The BMP(biochemical methane potentiaI) of raw milk wastewater and ice cream wastewater, measured by using SBT(serum bottle test) , were 0.135 and 0.66ml CH4/mg COD.dded, respectively. The sludge activity increased more than 8 times from 0.159g COD-CH4/g VSS. d during 90 days of operation.
배병욱(Byung Uk Bae) 大韓環境工學會 2011 대한환경공학회지 Vol.33 No.9
본 연구에서는 공경 0.1 μm, 막여과 유속 3.0 m3/m2·d의 국산 세라믹 막을 이용하여 음용수를 생산하는 기술에 대해 조사하였다. 세라믹 막의 성능 평가를 위해 1 m3/d 규모의 pilot-scale 실험장치를 제작하였으며, 역세주기에 따른 차압변화와 전오존이 차압변화에 미치는 영향을 조사하였다. 차압상승률은 역세주기에 비례하여 증가하였으나, 전오존 주입을 통해 차압상승률을 낮출 수 있었다. 이 결과는 전오존이 파울링 감소에 효과가 있음을 의미한다. 1 mg/L의 전오존을 주입하고 5 min간 접촉하였을 때, 역세주기 1시간에서 차압상승률은 약 30% 감소하였다. 전오존 접촉시간을 5~15 min으로 변경하면서 운전한 결과, 접촉시간에 따른 차압상승률에는 차이가 없었다. 그러나, 차압상승률은 오존 주입농도가 증가하면 감소하는 경향을 보였다. The performance of a domestic ceramic membrane with pore size of 0.1 μm was evaluated to produce drinking water. A pilot-scale ceramic membrane filtration plant with a capacity of 1 m3/d was operated at the filtration flux of 3.0 m3/m2·d to investigate the effect of both backwash interval and pre-ozonation on TMP (trans-membrane pressure) increasing rate. The TMP increased with increasing the backwash interval. However, the application of pre-ozonation reduced the TMP increasing rate remarkably. When 1 mg/L of ozone was dosed with contact time of 5 min, TMP increasing rate at the backwash interval of 1 hr was reduced by 30%. This result indicated that pre-ozonation was very effective in reducing membrane fouling. There was almost no change in TMP increasing rate when the ozone contact time was maintained in the range of 5 to 15 min. Increasing ozone concentration up to 3 mg/L showed beneficial effect on TMP increasing rate.