One of the many challenges faced by Wastewater Treatment Plants (WWTPs) is the control of algae blooms. High algae concentrations create problems for process performance and increase operating expenditure for cleaning and maintenance activities. Algae blooms can contribute to fooling of filtration equipment aa well as foaming events on clarifiers and settling tanks. High parameter readings such as Suspended Solids and Biological Oxygen Demand may also be the result of algae blooms, thus not reflective of actual treatment performance Historical methods to control algae have included the addition of chemicals, atgaeodes or diversion of high nutrient waters however these approaches are either costly, complex or add secondary pollutants into the environment (L.Brand. 2011). Hosing down of clanfiers and settling tanks to break up the algae is labour intensive.
Advanced algae technology: The use of Ultra sonic technology for control of algae growth in an open balance tank
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