Patent ID: 6576594
Filing Date: 2003-06-10
Classification: A01N,C02F

Abstract:
A method of controlling algae in a municipal water plant, comprising the steps:passing raw water through the municipal water plant while treating the raw water as the raw water passes through the municipal water plant; and adding an effective amount of an algicide-flocculant solution to the raw water as the water passes through the municipal water plant, where the algicide-flocculant solution is mixed substantially uniformly with the water, wherein (i) the algicide-flocculant solution comprises 25-50 wt % acidic flocculant, 0-10 wt % polymer flocculent aid, an algicide consisting essentially of copper having a concentration of 0.025-1.275 wt % in the form of a water soluble copper salt, balance water, and (ii) said effective amount of the algicide-flocculant solution is an amount sufficient to kill algae in the water and to coagulate and/or flocculate particulates in the water that is being treated.