Wastewater treatment mechanism
AssigneeNorwalk Wastewater Equipment Company
InventorJan D. Graves
Life of this patent
Estimating the term…
Abstract
A mechanism for wastewater treatment which includes a plurality of solids settling chambers, at least a primary, secondary and a tertiary filter for selectively filtering wastewater and effecting settling of solids of different sizes in the settling chambers and flow equalization ports for effecting demand flow of wastewater through the mechanism and the eventual discharge of high quality effluent. Chlorination and optionally dechlorination are effected as integral process functions of the wastewater treatment mechanism.
Claims134
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, said chamber including filter means through which wastewater passes for separating larger and smaller solids between first upstream and second downstream side-by-side generally vertically disposed settling zones on opposite sides of said filter means, means within said chamber downstream of said second downstream settling zone for flow equalizing wastewater flow through said first and second side-by-side settling zones generally in variable response to upstream variable levels of the wastewater in at least one of said first and second side-by-side generally vertically disposed settling zones, inlet means upstream of said first settling zone for introducing wastewater into said chamber, and outlet means downstream of said flow equalizing means for discharging wastewater from said chamber.
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, inlet means for introducing wastewater into said chamber, first filter means in said chamber through which wastewater passes for separating larger and smaller solids and effecting gravity settling thereof in respective first upstream and second downstream side-by-side generally vertically disposed settling zones on opposite sides of said first filter means, second filter means through which wastewater passes upstream of said first filter means for preventing the entry of larger than the large solids into said first upstream zone, means downstream of said second settling zone for terminating substantially all bacteriological growth within the wastewater, and outlet means for discharging wastewater from said chamber.
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, inlet means for introducing wastewater into said chamber, first filter means in said chamber through which wastewater passes for separating larger and smaller solids and effecting gravity settling thereof in respective first upstream and second downstream side-by-side generally vertically disposed settling zones on opposite sides of said first filter means, second filter means through which wastewater passes upstream of said first filter means for preventing the entry of larger than the large solids into said first upstream zone, means downstream of said second settling zone for terminating substantially all bacteriological growth within the wastewater, means for isolating the downstream side of said bacteriological growth terminating means from the upstream side thereof to thereby prevent hydraulic return flow of the bacteriological growth terminated wastewater to said second settling zone, and outlet means for discharging wastewater from said chamber.
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, inlet means for introducing wastewater into said chamber, first filter means in said chamber through which wastewater passes for separating larger and smaller solids and effecting gravity settling thereof in respective first upstream and second downstream side-by-side generally vertically disposed settling zones on opposite sides of said first filter means, second filter means through which wastewater passes upstream of said first filter means for preventing the entry of larger than the large solids into said first upstream zone, means downstream of said second settling zone for generally terminating bacteriological growth within the wastewater, means for isolating the downstream side of said bacteriological growth terminating means from the upstream side thereof to thereby generally prevent hydraulic return flow of the bacteriological growth terminated wastewater to said second settling zone except by transmigration, and outlet means for discharging wastewater from said chamber.
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, inlet means for introducing wastewater into said chamber, means for defining first upstream and second downstream side-by-side generally vertically disposed settling zones, first filter means in said chamber through which wastewater passes between said first upstream and second downstream side-by-side generally vertically disposed settling zones for separating larger and smaller solids and effecting gravity settling thereof in said respective first upstream and second down stream settling zones, second filter means through which wastewater passes upstream of said first filter means for preventing the entry of larger than the large solids into said first upstream zone, means downstream of said second settling zone for defining a third downstream settling zone for effecting further settling of the wastewater solids, means down stream of said third settling zone for defining a fourth down stream settling zone for effecting further settling of the waste water solids, means downstream of said fourth settling zone for defining a fifth downstream settling zone for effecting further settling of wastewater solids, means downstream of said fifth settling zone for defining a sixth downstream settling zone for effecting further settling of wastewater solids, means down stream of said sixth settling zone for defining a seventh down stream settling zone for effecting further settling of wastewater solids, and outlet means for discharging wastewater from said chamber.
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, inlet means for introducing wastewater into said chamber, means for defining first upstream and second downstream side-by-side generally vertically disposed settling zones, first filter means in said chamber through which wastewater passes between said first upstream and second downstream side-by-side generally vertically disposed settling zone for separating larger and smaller solids and effecting gravity settling thereof in said respective first upstream and second down stream settling zones, second filter means through which wastewater passes upstream of said first filter means for preventing the entry of larger than the large solids into said first upstream zone, means downstream of said second settling zone for defining a third downstream settling zone for effecting further settling of the wastewater solids, means for effecting generally vertical wastewater flow in any one of said first through third settling zone, means for effecting generally horizontal wastewater flow in another of said first through third settling means, and outlet means for discharging wastewater from said chamber.
A mechanism for wastewater treatment comprising first means for defining a first generally vertically disposed settling chamber in which first size wastewater solids will gravity settle, inlet means for introducing wastewater into said first settling chamber, second means downstream of said first settling chamber for defining a second generally vertically disposed settling chamber in which second size wastewater solids smaller than the first size waste water solids will gravity settle, first filter means upstream of said first settling chamber for preventing third size wastewater solids larger than the first size wastewater solids from entering the first settling chamber, second filter means upstream of said second settling chamber for preventing the first size wastewater solids from entering said second settling chamber and passing the second size wastewater solids into the second settling chamber, means downstream of said second settling chamber for defining a third generally vertically disposed settling chamber for further gravity settling the second size wastewater solids which have not settled in the second settling chamber and flowed into the third settling chamber, and said first through third settling chambers being generally in side-by-side relationship, and outlet means for discharging wastewater from said third settling chamber.
A chlorinating and filtering mechanism comprising means for defining a chlorination chamber defined at least by a peripheral wall and a bottom wall, inlet means for introducing wastewater into said chamber, means for defining a filtering chamber defined in part by a peripheral wall, said filtering chamber peripheral wall being located generally within said chlorination chamber peripheral wall and in at least partial spaced relationship thereto, said peripheral walls defining therebetween a wastewater chlorination contact zone, means for introducing wastewater into said chlorination chamber, means for chlorinating the wastewater incident to its flow into said chlorination contact zone, filtering means in said filtering chamber downstream of said chlorination contact zone for filtering solids from the wastewater which have passed beyond said chlorination contact zone, and outlet means for discharging wastewater from said chamber.
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, inlet means for introducing wastewater into said chamber, first filter means for preventing relatively large size solids from entering said chamber, second filter means in said chamber downstream of said first filter means for effecting the passage therethrough of relatively smaller size solids, means downstream of said second filter means defining a downstream settling zone for effecting the settlement thereat of the relatively smaller size solids, means downstream of said settling zone for controlling wastewater flow through said settling zone generally in response to the level of the wastewater in said settling zone, and outlet means for discharging wastewater from said chamber.
A wastewater treatment tank comprising a wastewater treatment chamber, means for introducing wastewater into said wastewater treatment chamber, a solids settling chamber within said wastewater treatment chamber, means for conducting wastewater from said wastewater treatment chamber into said solids settling chamber, filtering means forming a part of said solid settling chamber through which wastewater passes for separating larger and smaller solids between first upstream and second downstream side-by-side generally vertically disposed settling zones on opposite sides of said filter means, means for conducting wastewater from said solids settling chamber exteriorly of said wastewater treatment chamber, and means for chlorinating the wastewater prior to settling out solids therefrom by said settling means and before the wastewater exits the wastewater treatment chamber.
A mechanism for wastewater treatment comprising means for defining a chamber in which wastewater is treated during the passage thereof through said chamber, said chamber including filter means through which wastewater passes for separating larger and smaller solids between first upstream and second downstream side-by-side generally vertically disposed settling zones on opposite sides of said filter means, said filter means and first and second settling zones being each of a generally annular configuration, a plurality of third generally horizontally disposed and vertically stacked settling zones downstream of and generally surrounded by said second settling zone for gravity settling solids during generally horizontal wastewater flow therealong, inlet means for introducing wastewater into said chamber, and outlet means for discharging wastewater from said chamber.
Dependencies are inferred from the claim text.