| - | A full-scale demonstration of nutrients removal in a single reactor combining anaerobic and aerobic conditions | Choi Yong Su; HONG SEOK WON; 이영대; 윤현식; 박준규 | 
| - | A novel process for simultaneous nutrient removal from domestic wastewater through the increase of microbial population of bacillus sp.: a pilot-scale experience | Choi Yong Su; HONG SEOK WON; Y. W. Kwon | 
| - | A study on livestock wastewater treatment using B3 pilot plant | 김승준; HONG SEOK WON; Choi Yong Su; 권용웅 | 
| - | A study on the nitrification and denitrification of bioreator with bio-block | Ham Sa; HONG SEOK WON; Choi Yong Su | 
| - | Application of contact oxidation with media in the polluted stream water | 이지웅; CHUN YANG KUN; Choi Yong Su; 박준규 | 
| 1997-11 | B3  공정을 이용한 하폐수의 고도처리기술 | Choi Yong Su | 
| - | Batch and column tests for the development of immobilization technology of toxic heavy metals in contaminated soils of closed mine | 김인수; 장암; Choi Yong Su | 
| - | Behavior of nutrients in supernatant during intermittent aerobic digestion | 윤현식; Choi Yong Su; 이영대; HONG SEOK WON | 
| - | Biological nutrient removal in the process combining anaerobic and alternately intermittent aeration tanks : Lab. and pilot-scale experience | 권기한; Choi Yong Su; 최의소; HONG SEOK WON | 
| - | Biological removal of nitrogen and phosphorus by a KSBNR | LEE YOUNG DAE; Choi Yong Su; PARK YONG BEA; 조용웅 | 
| - | Development of a biological process for livestock wastewater treatment using a technique for predominant outgrowth of bacillus species. | Choi Yong Su; HONG SEOK WON; 김승준; 정일호 | 
| - | Development of a process to remove nitrogen and phosphorus in livestock wastewater | Choi Yong Su; HONG SEOK WON; 윤현식; 정일호; 김승준 | 
| - | Development of an environmental friendly technology for the restoration of river. | Choi Yong Su; CHUNG IK JAE; HONG SEOK WON; PARK YONG BEA; 이승우 | 
| - | Immobilization of Arsenic in T | CHUNG IK JAE; 서보희; Choi Yong Su; PARK HUNG MOK | 
| - | Integration of microbial ecology and kinetics with performance of a hollow-fiber membrane reactor. | Byoung-In Sang; CHUNG YUNCHUL; Pak Dae Won; Choi Yong Su | 
| - | Integration of microbial ecology and performance of a hollow-fiber membrane reactor for perchlorate removal from drinking water. | Byoung-In Sang; Pak Dae Won; Choi Yong Su; CHUNG YUNCHUL | 
| - | Kinetic study for the process consisting of anaerobic and two-stage alternately intermittent aeration zone | 이영대; Choi Yong Su; 윤현식; HONG SEOK WON; PARK YONG BEA | 
| - | Microfiltration of MLSS in an activated sludge system treating organic wastewater | Choi Yong Su; A. G. Fane; K. J. Kim | 
| - | Nutrient removal from night soil by using B3 (Bio-Best-Bacillus) process | Choi Yong Su; 성기문; Seong Ho Kim | 
| - | Optimization of 2-stage alternately intermittent aeration zone using oxidation-reduction potential(ORP) | Choi Yong Su; 이영대; 윤현식; HONG SEOK WON | 
| - | Pollutant resuspension and first flush in a combined sewer system | 윤현식; SIN EUNG BAE; 이영대; 김연권; Choi Yong Su; HONG SEOK WON | 
| - | Prevention of AMD by means of immobilizing arsenic and iron via fenton-like reaction in soil-tailing. | Choi Yong Su; CHUNG IK JAE; HONG SEOK WON | 
| - | Study on development of yellow soil media for stream water clean-up | 박준규; Choi Yong Su; CHUN YANG KUN | 
| 1999-11 | 혐기 및 2단 교호간헐폭기를 이용한 생물학적 영양성분 제거 | Choi Yong Su; 이영대; 윤현식; HONG SEOK WON; 이석원 | 
| 1997-02 | 휴폐광산지역 오염토양 복원대책 | Choi Yong Su |