nitrate phosphorus removal

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Given the following parameters, what is the best possible solution to remove the nitrate phoshorus? 2 hour retention time, cost effective, high removal efficiency, sustainable, nitrate levels: 1-500 mg/l and phosphorus levels: 1-10 mg/l, budget: $100-$400.

thanks

 

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2 Answers

  1. Algae may be an option. It is a "resource" being utilized in many places, as a way to treat final effluent for discharge. The biomass can be harvested, and digested anaerobically for Biogas, or even pelletized and dried, and used for burnable fuel. Check out some of these sites: Oilgae.com (based in India); algaeindustrymagazine.com; National Algae Association (US based) for additional info. Algae are great at utilizing N and P. I dont know if you can get the levels down to where you need them in a 2 hour window but my guess is that the listed sites have more information- here is one link: www.oilgae.com/blog/category/algae-wastewater-treatment Lynn