Wastewater treatment system including irradiation of primary solids

US9340441B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9340441-B2
Application numberUS-201414257402-A
CountryUS
Kind codeB2
Filing dateApr 21, 2014
Priority dateJul 8, 2009
Publication dateMay 17, 2016
Grant dateMay 17, 2016

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Abstract

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The present invention provides a system for treating wastewater in which the majority of solids and biological oxygen demand compounds are separated from the wastewater feed using a primary separation process, to produce a solids phase and a water phase. The solids phase is irradiated to reduce the level of pathogens such that it is safe to use as a soil substitute and/or additive so that the solids can thus be disposed of in an environmentally-friendly manner. In additional embodiments, the solids that have been disinfected by radiation are mixed with a suitable inert filler material to produce a soil substitute, fertilizer, compost, or other soil additive. The liquid phase is treated in a substantially smaller system than would be required for treating the full-strength wastewater that can include a suspended media biological regeneration reactor system. The liquid treatment system can include a high flux adsorbent material treatment system integrated with a low flux adsorbent material biological regeneration reactor.

First claim

Opening claim text (preview).

The invention claimed is: 1. A system for treatment of wastewater comprising: a radiation treatment zone including a source of radiation; an inlet for receiving primary solids, a solids outlet for discharging irradiated primary solids, and a wastewater outlet; a source of fresh or recycled porous adsorbent material, wherein the adsorbent material is characterized by adsorptive capacity for adsorption of biologically refractory compounds and/or biologically inhibitory co…

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What does patent US9340441B2 cover?
The present invention provides a system for treating wastewater in which the majority of solids and biological oxygen demand compounds are separated from the wastewater feed using a primary separation process, to produce a solids phase and a water phase. The solids phase is irradiated to reduce the level of pathogens such that it is safe to use as a soil substitute and/or additive so that the s…
Who is the assignee on this patent?
Saudi Arabian Oil Co, Siemens Energy Inc
What technology area does this patent fall under?
Primary CPC classification C02F3/1268. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue May 17 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).