Wahyu Wilopo, Keiko Sasaki
This study investigates the effectiveness of permeable reactive barriers (PRBs) using zero valent iron (ZVI) combined with sheep manure to remove arsenic (As) and manganese (Mn) from contaminated groundwater. A column test was conducted to assess the immobilization processes of As and Mn under different conditions. The results indicate that arsenic was predominantly immobilized via sorption and co-precipitation with iron-bearing minerals, and precipitated as FeAsO4, particularly in the presence of sulfate-reducing bacteria (SRB). The inoculated column achieved greater As immobilization than the sterilized column due to additional sulfide formation. In contrast, manganese removal was mainly through adsorption onto ZVI and to a lesser extent through carbonate precipitation, with higher effectiveness observed in the sterilized setting, likely due to the biodegradability of compost reducing its capacity for Mn2+ immobilization. This study concludes that combining sheep manure with ZVI in PRBs enhances the immobilization of arsenic compared to using ZVI alone.
@article{6ec775b7-e78c-484f-969f-5c4c253d24ef,
title={Immobilization of arsenic and manganese},
author={Wahyu Wilopo and Keiko Sasaki},
year={2026},
language={en}
}TY - JOUR TI - Immobilization of arsenic and manganese AU - Wahyu Wilopo AU - Keiko Sasaki PY - 2026 LA - en ER -
This paper addresses the challenge of assessing the feasibility of wind power plant projects at sites with insufficient or no local historic wind data
Important advances in electrochemical engineering technology over the last three decades have fostered the development of a lternative methods to alle
Increasing volumes of waste printed circuit boards from obsolete electronic equipment posed escalating environmental risks and resource losses due to
The leachability tests for manufacturing scrap TV boards (STVB) have indicated the release of metals beyond the limit levels with potential problems f