title: Study on purification mechanism in soil penetration facility for effluents from urban area and control strategies.
abstract: In this study, demonstration experiments for removal of pollutants from road surface runoff during storm events were carried out under natural conditions in an outdoor pilot-scale soil penetration facility. In general, soil retains suspended matter and removes dissolved matter by adsorption. However, issues such as reduced purification capacity resulting from clogging and recovery of purification capacity during periods of intermittent supply of the storm water affect the removal efficiency of pollutants. Therefore, this study aimed at clarifying purification mechanisms during storm events and understanding how the structural characteristics of the soil penetration facility affect purification capacity based on long-term continuous measurements. In addition, modeling the purification mechanism under changing characteristics of rainfall in the long-term was undertaken.
authors.affiliation: Department of Environmental Systems Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan. yamada-k@se.ritsumei.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Yamada
authors.forename: D
authors.initials: D
authors.lastname: Ujiie
authors.forename: K
authors.initials: K
authors.lastname: Nishikawa
mesh_terms: D000327:Adsorption; D000383:Agriculture; D002947:Cities; D003247:Conservation of Natural Resources; D004784:Environmental Monitoring; D007564:Japan; D011891:Rain; D012987:Soil; D012989:Soil Pollutants / Q000032:analysis; D013997:Time Factors; D014867:Water; D014872:Water Movements; D014873:Water Pollutants / Q000032:analysis*; D018508:Water Purification / Q000379:methods*; D014881:Water Supply
chemical_list: D012987:Soil; D012989:Soil Pollutants; D014873:Water Pollutants; D014867:Water