Continuously produced algae is seeded into the waste streams by the use of 4 or more photo bio-reactors. The algae so produced manufacture oils and fats inside their cells from nutrients in the waste and the process of photosynthesis. Their growth is enhanced by the use of screens, both fixed and movable. These algae adhere to the screens or to the long chain algae attached there to. Algae removed from the raceway bio-reactor are killed by repeated application of heavy rollers over leveled out extracted algae cells. The dead algae are covered with recycled process waste water which goes to one of more oil/water separators and then to storage tanks that contain bio-diesel oil fraction, to waste water tanks and to storage bins for solid waste dead cell material removed.

 
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