제주대학교 Repository

제주시 한천 저류지의 비점오염물질 특성 및 저감 효과

Metadata Downloads
Abstract
The Jeju Special Self?Governing Province established 11 off?line large scale
retention ponds in order to prevent floods after 2007. The reservoirs were mainly
designed to prevent floods yet also serve as large scale settling retention ponds
that reduce non-point source pollution and help lower the level of pollutants
discharged downstream during rainfall by allowing the pollutants to first settle.
The study aimed to examine data collected from a field study on four cases of
pollutant leaks that occurred in August and September, 2012, in HanCheon
Retention pond, which is one of the 11 off?line retention ponds. The result
showed the reduction of SS concentration, turbidity, COD, NH3-N, NO3-N,
potassium permanganate consumption with 31.7 %, 40.2 %, 80 %, 33.3 %, 25 %
and 47 %, respectively, as the outflow of No.1 HanCheon Retention pond flowed
to the third section from the first section of the retention pond, indicating that
when outflow occurs in the No.1 HanCheon Retention pond, the level of
pollutants flowing into the stream can be lowered. Particulate in the retention
pond were observed to settle differently depending on several factors such as the
location of the retention pond, antecedent precipitation and rainfall intensity;
however, they were all immediately settled in the early stage, a phenomenon
known as discrete settling. Moreover, the study was conducted in order to
calculate pollution load after an inflow into HanCheon1 Retention pond and
results showed that BOD, COD, T-N, SS with 266 kg, 4,657 kg, 327 kg, 120,197
kg respectively in 17, September, 2012, and besides in 28, August, 2012 showed
that BOD, COD, T-N, SS with 210 kg, 663 kg, 74 kg, 12,037 kg, which means
pollution load is proportional to an inflow. In other words, the pollutants being
discharged downstream and into the ocean was removed as much as the
pollutants being discharged into HanCheon Stream, owing to the retention pond.Because the reduction rate fluctuates depending on the opening and closing of
sluices that are installed in the retention pond, further studies upon this matter
should be conducted.
Author(s)
임성록
Issued Date
2013
Awarded Date
2013. 2
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000006233
Affiliation
제주대학교 대학원
Department
대학원 환경공학과
Advisor
조은일
Table Of Contents
제 Ⅰ 장 서 론 1
제 Ⅱ 장 이론적 배경 3
1. 비점오염원 3
1) 비점오염원 개요 3
2) 비점오염원의 종류 4
3) 비점오염원저감시설의 종류와 효과 5
2. 저류지 8
1) 저류지 개요 8
2) 저류지 유형 구분 8
3) 저류시설 구성요소 10
4) 제주지역 저류지 현황 11
제 Ⅲ 장 재료 및 방법 15
1. 연구 대상 지역 15
2. 연구 방법 16
1) 연구기간 16
2) 연구내용 19
3. 분석항목 및 방법 21
1) 침강실험 22
2) 저류지 유입유량 산정 방법 22
3) 한천 유량 산정 방법 23
제 Ⅳ 장 연구 결과 및 고찰 27
1. 한천의 수질 특성 27
1) 한천의 비점오염물질 농도변화 27
2) 한천과 병문천, 삼수천의 수질특성 비교 32
2. 한천 제 1저류지 입자성물질의 침강성 평가 36
3. 한천 제 1저류지의 수질 특성 38
4. 한천 저류지 유입유량 산정 41
1) 한천 유량 산정 41
2) 한천 저류지 유입유량 42
5. 한천 저류지의 비점오염물질 저감 효과 45
1) 한천 저류지의 비점오염부하량 45
2) 한천 저류지의 오염물질 저감 효과 46
제 Ⅴ 장 결 론 49
참고문헌 51
감사의 글 53
Degree
Master
Publisher
제주대학교
Citation
임성록. (2013). 제주시 한천 저류지의 비점오염물질 특성 및 저감 효과
Appears in Collections:
General Graduate School > Environmental Engineering
Authorize & License
  • AuthorizeOpen
Files in This Item:

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.