| Title |
A Study on Estimating Diffuse Pollution Loads Removal by Road Vacuum Cleaning |
| Authors |
이태환 ( Taehwan Lee ) ; 조홍래 ( Hong-lae Cho ) ; 정의상 ( Euisang Jeong ) ; 구본경 ( Bhon K. Koo ) ; 박배경 ( Baekyung Park ) ; 김용석 ( Yongseok Kim ) |
| DOI |
https://doi.org/10.15681/KSWE.2017.33.2.123 |
| Keywords |
Diffuse pollution loads; Road deposited sediment(RDS); Road vacuum cleaning efficiency; Wash-off rates of RDS |
| Abstract |
This study intends to identify methodologies to reasonably estimate the effectiveness of road vacuum cleaning in terms of pollution loads reduction. It proposes two empirical equations for estimating how much diffuse pollution can be removed by road vacuum cleaning. The proposed equations estimate the amount of pollution loads removed by considering (a) the distance covered by road vacuum cleaning; and (b) the amount of road-deposited sediment (RDS). All the parameters in these equations were evaluated by field monitoring and laboratory analyses, except for the RDS generation rate. The results are that pollutant removal efficiency is 46.3% for BOD5 and 56.4% for TP; the discharge ratios for particulate and dissolved BOD5 are 35.0% and 21.2%, respectively; and the discharge ratios for particulate and dissolved TP are 35.0% and 19.4%, respectively. The average concentrations of pollutants in RDS are BOD5 977.3 mg/kg and TP 317.6 mg/kg. A case study seems to show that both equations could be useful if the adopted parameters are reasonably evaluated. In particular, the RDS generation rate should be evaluated by means of monitoring data collected from various road conditions. |