대청호추동취수탑 부근의 수질변화 특성

• 영문명: Variation of Water Quality around the Chudong Intake Tower in Daechung Reservoir
• 발행기관: 개인저작물
• 저자명: 마심초(Xin-Chao Ma) 임봉수(Bong-Su Lim) 허순욱(Soon-Uk Heo) 곽미애(Mi-Ae Kwak)
• 간행물 정보: 『개인저작물 - 공학』제31권, 제6호, 637~643쪽, 전체 7쪽
• 주제분류: 공학 > 개인저작물
• 파일형태: PDF
• 발행일자: 2015.null.null

영문 초록

This study has been carried out to provide the basic data obtained from the evaluation of the variation of water quality around the Chudong intake tower in Daechung resevoir, which may be able to help the establishment of a pure water supply policy. Five sites around the Chudong intake tower were selected, and the average data for recent ten years(from year 2004 to year 2013) were analysed. The average water quality around Chudong intake tower are as followed; pH 7.5, DO 8.7 mg/L, BOD 1.0 mg/L, COD 3.0 mg/L, SS 3.0 mg/L, TN 1.495 mg/L, TP 0.017 mg/L, and Chlorophyll-a 6.5 mg/m3 were matched the good class by comparing with the living environment standard of reservoir. COD values of higher than 3.0 mg/L after July were likely due to non-point pollutants and algae outbreak during rainy summer season. Total phosphorus rose sharply in the summer season, and then algae watch was issued consistently for average 40 days. Total nitrogen to total phosphorus ratio was average 90, and it is important to control the inflow phosphrous from small stream for proper management to block an algae growth according to eutrophication. It was recommended to operate the algae removing boats around intake tower from July to October, and was required advanced water treatment processes to remove NBD COD and bad odor and taste due to algae growth.

목차

1. Introduction

2. Meterials and Methods

3. Results and Discussion

4. Conclusion

키워드

Algae watch Chudong intake tower Management to block algae growth Total nitrogen to total phosphorus ratio