Compact apparatus for the purification of waste water by a physical chemical treatment
First Claim
1. 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.
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Abstract
A single, integrally formed tank has an upper portion of a rectangular configuration and a lower portion of downwardly decreasing volume and defined by a plurality of exterior walls, at least two of which are inclined downwardly and inwardly toward each other. The interior of the tank is divided into three serially connected compartments by means of interior walls which are inclined in directions substantially parallel to one of the inclined exterior walls. The compartments thus formed are a first, neutralization and coagulation compartment, a second, flocculation compartment, and a third, lamellar decanting and sludge settling compartment. Within the flocculation compartment are arranged a plurality of spaced inclined plates defining upwardly inclined flow passages into which extend deflectors to create eddy currents in the water passing upwardly through the flocculation compartment. Within the decanting compartment are arranged a plurality of inclined hollow tubes which facilitate downward settling of sludge and upward movement of the decanted water.
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Citations
17 Claims
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1. An apparatus for the purification of waste water by a physical chemical treatment, said apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification