Open AccessInvestigation of Lead and Iron Removal from Groundwater Using Sapropel and Quartz Sand
Author(s) -
Sorphea Heang,
Ramunė Albrektienė,
Dainius Paliulis
Publication year - 2020
Publication title -
environmental engineering
Language(s) - English
Resource type - Conference proceedings
ISSN - 2029-7092
DOI - 10.3846/enviro.2020.737
Subject(s) - sapropel , groundwater , sorption , quartz , environmental science , filtration (mathematics) , geology , environmental chemistry , chemistry , geotechnical engineering , adsorption , ecology , paleontology , statistics , mathematics , organic chemistry , mediterranean climate , biology
In Prey Nop district of Cambodia, a district in coastal area, it was observed that concentration of iron andlead in groundwater was higher than permissible values. Lead is a highly toxic heavy metal, while iron is an elementcausing several problems related to the deterioration of taste and aesthetic appearance of water and the capacity reduction of water supply pipelines. Therefore, this article investigates the effectiveness of the technology for removing leadand iron from groundwater using the cheapest materials like sapropel and sand. In this study, different doses of sapropel(0.1, 0.2, 0.4, 0.5, 0.6, 0.8, 1, 2, 3, 4, 5 and 6 g/L), different durations of sorption processes (30, 60, 90, 120 and 150min) and a laboratory bench for iron filtration filled with quartz sand were used for lead and iron ions removal. Resultsfrom the bench tests showed that both iron and lead were removed at efficiencies of 70 and 97%, and their concentrationsdid not exceed the permissible levels by using the lowest dose of 0.1 g/L of sapropel for sorption of lead and filtrationthrough quartz sand filters for iron removal.