Liquid purification or separation – Processes – Treatment by living organism
Patent
1996-07-29
1997-06-10
Lithgow, Thomas M.
Liquid purification or separation
Processes
Treatment by living organism
210614, 210703, 210705, 210708, 210709, 210734, 210738, 210804, 210806, 2102212, C02F 124
Patent
active
056372213
ABSTRACT:
A wastewater treatment system and method for substantially reducing or eliminating total suspended solids (TSS), biological organic discharge or biochemical oxygen demand (BOD), and fats, oils and greases (FOG) contaminants. The system includes at least one mixing chamber for mixing wastewater with at least one dewatering agent or chemical and air to form an aerated mixture and at least one tank having a plurality of compartments for facilitating flotation, settling and removal of contaminants from the aerated mixture as it flows through the tank. Preferably, the system includes first and second mixing chambers and first and second tanks arranged in series with each of the tanks including drag lines for removing floating and settled contaminants.
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Alexander Daniel R.
Lithgow Thomas M.
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