Assessing the use of iron coated quartz sand in grey water treatment for reuse
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Date
2025-12-11
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Uganda Christian University
Abstract
Soak pits remain the primary method of grey water disposal in many schools in Mukono. This method is effective for small volumes but inadequate due to the growing student population and expanding school activities thus leading to environmental risks like faster clogging and overflowing thus disease spreading. This research focused on identifying the quality and quantities of grey water in institutions specifically at St. Francis Borgia and going on to recover grey water as a valuable source that if recycled and reused for non-potable purposes like irrigation.
Local and low cost materials were suggested to be used in grey water treatment and quartz sand filters showed promising results. Experiments were made with plain quartz sand and treated quartz sand and results showed higher percentage of contaminant reduction (between 40% and 80%) with treated quartz sand. Based on results, there was a suggestion of design of treatment unit using treated quartz sand for adsorption and filtration of grey water to ensure it meets standards for which it is treated for.