Since it is domestic waste it ...
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
Since it is domestic waste it is likely that the principle concern is potential human exposure to microbial pathogens, from the water, worker exposures and if applied to food crops. The algae is providing some benefit by utilizing some of the nutrients, Be sure to strictly adhere to qualified guidelines that have been published for management of wastewater and applications to food crops. The State of California has extensive regulations for recycling under Title 22.