Compact apparatus for the purification of waste water by a physical chemical treatment

An apparatus for the purification of waste water by a physical chemical treatment, said apparatus comprising:

• a single, integrally formed tank having a lower portion of downwardly descending volume defined by a plurality of exterior walls, at least two opposite of said exterior walls being inclined downwardly and inwardly toward each other;
• the interior of said tank being divided into first, second and third serially connected compartments, said first and second compartments being in communication at the bottoms thereof, and means for communicating the top of said second compartment with the bottom of said third compartment;
• means for introducing waste water to be treated into the top of said first compartment, such that said waste water flows downwardly through said first compartment, then from the bottom of said first compartment into the bottom of said second compartment and upwardly through said second compartment, and then from the top of said second compartment through said communicating means into the bottom of said third compartment and upwardly through said third compartment;
• a plurality of inclined plates positioned within said second compartment to define therein a plurality of upwardly inclined flow passages having bottom inlet ends in communication with the bottom of said first compartment, whereby said waste water flows through said upwardly inclined flow passages;
• a plurality of deflectors extending into each of said upwardly inclined flow passages for creating turbulence in the flow of said waste water passing therethrough;
• a plurality of inclined hollow tubes positioned within said third compartment and having bottom inlet ends in fluid communication with the top of said second compartment through said communicating means;
• and
• means for collecting purified water from the top of said third compartment, and outlet means in communication with said collecting means.