Evaluating the Usage of Sand Filtration for Greywater Treatment

Hegazy, Mohamed H; Sabry, Tarek Ismail; Moustafa, Hossam Hussein; Hassane, Mohamed Khaled

doi:10.21608/eijest.2025.367049.1326

Evaluating the Usage of Sand Filtration for Greywater Treatment

Document Type : Original Article

Authors

¹ Faculty of Engineering, The British University in Egypt, Cairo, Egypt

² Faculty of Engineering, Ain Shams University

³ Faculty of Engineering, Ain Shams, University

⁴ Faculty of Engineering , The British University in Egypt

10.21608/eijest.2025.367049.1326

Abstract

The gap between water availability and demand is expanding worldwide over time. In Egypt, the water shortage has surpassed 40%, prompting the search for alternative sources to cover this deficit. Promoting sustainable water reuse and the reduction of the environmental impact of wastewater treatment are the main goals of finding a clean technology for greywater treatment. Evaluation process of a wastewater treatment system by conducting a physical pilot plant testing since performance under actual operating conditions needs to be evaluated; hence, optimization of the process can be made before full-scale implementation. Sand filtration process were applied to treat the collected wastewater from the university buildings and student dorms at the British university in Egypt. A depth filtration pilot plant of 110 litres was used with a fixed water head 80 cms. Experiments were conducted using the different filtrate flux rate and depths of sand filter media.. The optimum removal efficiency was achieved for a filtrate flux rate of 555 lit/m²/hrs and sand depth of 80 cms; values recorded were 78.65 and 80.03 % removal for chemical oxygen demand COD and total suspended solids TSS respectively.

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