Arsenic Biosand Filter: “study on the Effect of Air Space Between the Resting Water and the Diffuser Basin on Arsenic Removal and Determination of General Flow Curve” (a Case Study of Nawalparasi District, Tilakpur V.d.c.)

Student: Adebayo Daniel Ogunkoya (Thesis, 2025)
HOD: Dr Oluwatosin Tope-jegede
Department of Fisheries and Aquaculture
Federal University Oye-Ekiti, Ekiti State

Abstract

The study attempt to investigate the effect of air space between the diffuser basin and theresting water level on removal of arsenic by the Arsenic Biosand Filter. In addition, the studyfocused on the determination of general flow curve for the filter , determination of timerequired for volume of water to be filtered and also to comprehend the social acceptance ofthe filter.Four filters from Tilakpur VDC of Nawalparasi district were selected for the research..Altogether 150 water samples were collected and flow rate of each sample was taken. Thecollected samples were tested for arsenic by using ENPHO arsenic field test kit. Besides this,the social acceptance of the filter was evaluated through questionnaire and informal survey.To accomplish the objective some hypothesis was set. And the result obtained from theresearch was compared with the hypothesis set. And according to the comparison the resultand conclusion were made. And thus the result obtained from the research was not accordingto the hypothesis set and this thesis describes the different reasons not satisfying the hypothesis. 

Keywords
arsenic biosand filter effect space resting water diffuser basin removal
Filters
Institutions