A new regulation has been proposed that would lower the acceptable level of arsenic in drinking water from the current standard of 50 ppb. Therefore, research into effective arsenic removal treatment is important, especially for hard to treat waters with high concentrations of silica. The first phase of research was designed to determine if sand ballasted coagulation is a viable means of removi...

In this study, the degree of goodness fit presented by San model is determined to calculate percentage removal flocculent particles, when initial turbidity in problem water low. For this, frequency analysis historical data that enters four drinking treatment plants located department Cundinamarca (Colombia) made, which show values range between 0.60 and 15.08 NTU (Nephelometric Turbidity Units)...

Abstract The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) has been detected in water bodies worldwide, precluding their use for supply. Despite this, scientific studies assessing the behavior of herbicides treatment systems are scarce, which motivated this study on 2,4-D removal. removal and its relationship with absorbance were investigated using a pilot system comprising coagulation, sedi...