Improving drinking water compliance

Hello everyone I am currently working on a study looking at novel ways to deal with water quality issues and invasive species in drinking water reservoirs. Specifically, i am focusing on how to either harvest microalgae or to find a way to remove them/isolate them away from the intake, to prevent them getting into the treatment plant. The focus is on finding solutions which are radical, as we have already explored the usual technologies available now. So far I have thought they could be harvested if in flocs, so I am looking at bioflocculation and flotation technology as a potential solution. If you have any other ideas/literature/case study/knowledge of any interesting trials please let me know. Thanks Alex