Irrigation reuse

Irrigation reuseWe are looking for a way to reuse irrigation water that has been used to irrigate potted plants and trees.  The plants are from various vendors so the amounts of fertilizers, etc is unknown.  Our fear is that in storage we will have large algae plumes and make the water useless.  Does anyone have experience or ideas to remedy this?  We are planning to have the water pass through a bioswale but not sure of the specifics.   --- thanks