Factorial Design Approach to Investigate the Effects of Groundwater Cooccurring Solutes on Arsenic Removal by Electrocoagulation |
| |
| Authors: | Chanchal Majumder Anirban Gupta |
| |
| Affiliation: | 1Senior Lecturer, Dept. of Civil Engineering, Bengal Engineering and Science Univ., Shibpur, Howrah 711103, West Bengal, India (corresponding author). E-mail: chanchal@civil.becs.ac.in
2Professor, Dept. of Civil Engineering, Bengal Engineering and Science Univ., Shibpur, Howrah 711103, West Bengal, India.
|
| |
| Abstract: | Effects of groundwater cooccurring solutes such as phosphate (PO4), silicate (SiO3), bicarbonate (HCO3), calcium (Ca), and iron (Fe) on arsenic removal were investigated in this study. Investigation by two-level full-factorial designed experiments revealed that PO4 and SiO3 have negative effect on arsenic removal, whereas HCO3 has negligible positive effect. The effects of Ca and Fe present in groundwater have positive effect on arsenic removal by electrocoagulation (EC). Hypothesis testing at 5% significance level suggests that alkalinity (HCO3) is not an important parameter in arsenic removal by EC in naturally occurring pH range of water. |
| |
| Keywords: | Phosphate Silica Experimentation Arsenic Groundwater pollution Abatement and removal |
|
|
