Ultraviolet light fluid treatment device
US-2024173453-A1 · May 30, 2024 · US
Method for treatment of dyeing wastewater by using UV/acetylacetone oxidation process
US9199865B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9199865-B2 |
| Application number | US-201214353875-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 21, 2012 |
| Priority date | Dec 15, 2011 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for treatment of dye wastewater by using ultraviolet-acetylacetone oxidation process is provided. This method belongs to the field of dye wastewater treatment, comprising the following steps: A) adding acetylacetone into dye-containing water, stirring and mixing them completely; B) putting the liquid obtained in step A) under ultraviolet irradiation till it is effectively decolorized. Provided is a new method for decolorizing high-concentrated dye wastewater on the basis of ultraviolet-induced oxidation process of phydroxyl radicals. This method can realize complete decolorization of the dye wastewater. During the oxidation process, the dye in the wastewater acts as the photosensitizer and can accelerate the decolorization process as the reaction progresses. The method can also improve BOD5/COD ratio from lower than 0.1 to higher than 0.3, which means that this method can be used not only for high-efficient decolorization of dye wastewater, but also as a preliminary step of microorganism treatment.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for treatment of dye wastewater by using ultraviolet-acetylacetone oxidation process, comprising following steps: A) adding acetylacetone into dye-containing water, stirring and mixing them completely; and B) putting a liquid obtained in step A) under ultraviolet irradiation until it is effectively decolorized; wherein the ultraviolet-acetylacetone process is performed without the presence of ozone. 2. The method for treatm…
Assignees
Inventors
Classifications
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C02F1/325Primary
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9199865B2 cover?
- A method for treatment of dye wastewater by using ultraviolet-acetylacetone oxidation process is provided. This method belongs to the field of dye wastewater treatment, comprising the following steps: A) adding acetylacetone into dye-containing water, stirring and mixing them completely; B) putting the liquid obtained in step A) under ultraviolet irradiation till it is effectively decolorized. …
- Who is the assignee on this patent?
- Nanjing University Of Technology
- What technology area does this patent fall under?
- Primary CPC classification C02F1/325. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 01 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).