Dora Laky

Budapest University of Technology and Economics

Determining a technology's merit as a solution to Hungarian drinking water arsenic contamination goes beyond technical concerns: environmental and economic aspects also play very important roles. In an effort to address the current arsenic drinking water requirements in Hungary, life cycle analysis (LCA) methodology was applied on two example arsen...

In order to study the applicability of biological ammonia removal from drinking water, field experiments with 10 L/h flow rate were carried out at a case-study area, where raw water contained arsenic, iron, manganese, dissolved gases (methane, aggressive carbon dioxide) and ammonia. The technology applied at the waterworks consisted of potassium pe...

Jar tests with synthetic water were carried out in order to investigate the effect of phosphate, bicarbonate and silicate on arsenic removal efficiency by in-situ formed ferric hydroxide. Above 12 mg C/L inorganic carbon concentration, the adverse effect of bicarbonate was definite, and resulted in higher remaining arsenic concentration. At all pH...

Coagulation by ferric-salt is a widely used technique for ar-senic removal. Jar tests with synthetic water were conducted in order to investigate the combined effect of the raw water char-acteristics on the removal efficiency of in-situ formed ferric-hydroxide. Multiple linear regression analysis was carried to establish a robust model, which is ab...