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J Korean Soc Environ Eng > Volume 38(9); 2016 > Article
J Korean Soc Environ Eng 2016;38(9): 482-496. doi: https://doi.org/10.4491/KSEE.2016.38.9.482
정수장 유입조류 전처리를 위한 천연조류제거제(W.H.)의 최적주입농도 결정
장여주1, 정진홍2, 임현만2, 윤영한2, 안광호2, 장향연3, 김원재2
1(주)에덴녹화산업
2한국건설기술연구원 환경・플랜트연구소
3과학기술연합대학원대학교
Decision Algorithm of Natural Algae Coagulant Dose to Control Algae from the Influent of Water Works
Yeo-Ju Jang1, Jin-Hong Jung2, Hyun-Man Lim2, Young H. Yoon2, Kwang-Ho Ahn2, Hyang-Youn Chang3, Weon-Jae Kim2
1E.D.R Landscaping Industry Co., LTD
2Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology
3University of Science & Technology
Corresponding author  Weon-Jae Kim ,Tel: 031-910-0303, Fax: 031-910-0291, Email: wjkim1@kict.re.kr
Received: June 24, 2016;  Revised: August 8, 2016;  Accepted: August 17, 2016.  Published online: September 30, 2016.
ABSTRACT
Algal blooms of cyanobacteria (blue-green Algae) due to the eutrophication of rivers and lakes can cause not only the damage by its biological toxins but also the economic loss in drinking water treatment. The natural algae coagulant, a commercial product known as W.H. containing the algicidal and allelopathic material derived from oak, can control algal problems proactively through the coagulation・flotation process. However, because there have been no applications of the process for pre-treatment in drinking water plants, we could find no report on the optimum injection dose of W.H.. In this study, we have conducted several sets of jar-tests while changing W.H. dose and concentration of chl-a for ① Han-river samples and ② subcultured cyanobacteria samples, and monitored the removal mechanisms of algae intensively. Based on these jar-test results, two linear equations with variables of chl-a and turbidity have been deduced to predict the optimal W.H. dose after the multiple regression analysis using IBM-SPSS. Also, prototypes of automatic control logic have been suggested to inject the optimal W.H. dose promptly in response to the variation of water quality.
Key Words: Natural Algae Coagulant, Coagulation・Flotation Process, Optimal Dose, Algae, Cyanobacteria
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