The asterceae as natural coagulants of the water from the bogotá river (Upper basin)

At the present time, aluminum sulfate (Al2 (SO4 )3(s)) is used as a traditional coagulant. In the developing countries, supplies of it are short, thus, there is a need for an alternative, taking into account the diversity of promising native plants they may be used as a source. One such source are t...