CN202390266U - Decoloration reactor for grey water of paper industry - Google Patents
Decoloration reactor for grey water of paper industry Download PDFInfo
- Publication number
- CN202390266U CN202390266U CN2011202673648U CN201120267364U CN202390266U CN 202390266 U CN202390266 U CN 202390266U CN 2011202673648 U CN2011202673648 U CN 2011202673648U CN 201120267364 U CN201120267364 U CN 201120267364U CN 202390266 U CN202390266 U CN 202390266U
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- decoloration
- reactor
- grey water
- container
- paper industry
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model relates to a decoloration reactor for grey water of paper industry; according to the treatment process direction of the grey water, a grey water pump, an ozone container, a hydrogen peroxide container and a container filled with a pH value regulator are respectively connected with the decoloration reactor; and the decoloration reactor is also provided with a discharge end. After the decoloration reactor is adopted, the emission standard of the grey water of paper industry treated by biochemical treatment can be more greatly improved, wherein CODCr is less than 150mg/L, and the chromaticity is less than 5; and the decoloration reactor has the advantages of being easy in operation, stable in decoloration without returning yellow, low in cost, etc.
Description
Technical field
The utility model relates to the paper waste treatment technology, particularly relates to the decoloring reaction device of intermediate water of papermaking.
Background technology
Paper industry is big, a with serious pollution industry of water consumption.Because the paper waste Pollutant levels are high, difficulty of governance is big, various countries all classify paper waste one of as main public hazards.Papermaking midcourse wastewater is meant the waste water of in processes such as screening, washing, bleaching, discharging through the boiling slurry after the black liquid extraction, and color is deep yellow, accounts for 8%～9% of industrial pollution caused by paper manufacturing total emission volumn, about ton slurry COD load 310kg.Generally speaking, after biochemical treatment, COD can reach 350mg/L to papermaking midcourse wastewater, but its colourity is higher, has limited this discharge water and has utilized scope again, especially does papermaking and utilizes.Therefore, the decolouring of papermaking midcourse wastewater processing has material impact to the utilization again of paper waste.
At present domestic aspect paper waste advanced treatment and reuse, still lack processing efficiency height, technology maturation reliably, the new technology of investment and working cost economy.So the research and development of paper waste advanced treatment and reuse new technology and the task of applying are arduous and urgent, are faced with great challenge and huge opportunity at present.
Summary of the invention
The purpose of utility model provides a kind of decoloring reaction device of intermediate water of papermaking, and it can make the emission standard through the intermediate water of papermaking after the biochemical treatment improve a lot, wherein COD
Cr＜150mg/L, colourity＜5, and easy to operate, decolouring stable not brightness reversion, low cost and other advantages are arranged.
The utility model is for realizing above-mentioned purpose; Realize through following technical scheme: a kind of decoloring reaction device of intermediate water of papermaking; Wherein, According to the treatment scheme direction to middle section water, stage casing water pump, ozone container, ydrogen peroxide 50 container, the container that pH value regulator is housed are connected with the decoloring reaction device respectively, and the decoloring reaction device also has discharge end.
The know-why of the utility model is: the ozone/hydrogen peroxide solution combination acts synergistically can produce the hydroxyl radical free radical OH with extremely strong oxygenizement, can effectively remove organic pollutant in the water.
The utility model draws following effect through TE and test: adopt the water after present method is handled, be improved largely than the standard of existing paper industry, wherein COD
Cr＜150mg/L, colourity＜5 are added small amount of flocculant again and can be reached some industrial reuse water requirement.
Description of drawings
Accompanying drawing is the synoptic diagram of the utility model.
Embodiment
Embodiment
A kind of decoloring reaction device of intermediate water of papermaking, wherein, according to the treatment scheme direction to middle section water, stage casing water pump, ozone container, ydrogen peroxide 50 container, the container that pH value regulator is housed are connected with the decoloring reaction device respectively, and the decoloring reaction device also has discharge end.
The working process of this reactor drum is following:
Middle section water after the biochemical treatment (COD is 350mg/L, 64 times of colourities) is introduced the decoloring reaction device for 10 tons, in reactor drum, add O
3And H
2O
2, concentration of liquid phase ozone maintains 15mg/L, and it is 50mg/L that ydrogen peroxide 50 adds concentration, keeps O through adding 1mol/LNaOH solution
3/ H
2O
2Reaction solution system pH=8, oxidation time 60 minutes, the waste water after the middle section water reaction finishes obtains the water body of colorless and odorless through flocculation sediment, puts not yellow for a long time.Chroma removal rate is 95%, and the COD clearance is 60%.
Claims (1)
1. the decoloring reaction device of an intermediate water of papermaking; It is characterized in that: according to treatment scheme direction middle section water; Stage casing water pump, ozone container, ydrogen peroxide 50 container, the container that pH value regulator is housed are connected with the decoloring reaction device respectively, and the decoloring reaction device also has discharge end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202673648U CN202390266U (en) | 2011-07-25 | 2011-07-25 | Decoloration reactor for grey water of paper industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202673648U CN202390266U (en) | 2011-07-25 | 2011-07-25 | Decoloration reactor for grey water of paper industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202390266U true CN202390266U (en) | 2012-08-22 |
Family
ID=46665204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202673648U Expired - Lifetime CN202390266U (en) | 2011-07-25 | 2011-07-25 | Decoloration reactor for grey water of paper industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202390266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818994A (en) * | 2014-02-26 | 2014-05-28 | 郑州大学 | Dosing method for ozone oxidation decolorant used for papermaking pulping waste water |
-
2011
- 2011-07-25 CN CN2011202673648U patent/CN202390266U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818994A (en) * | 2014-02-26 | 2014-05-28 | 郑州大学 | Dosing method for ozone oxidation decolorant used for papermaking pulping waste water |
| CN103818994B (en) * | 2014-02-26 | 2016-02-17 | 郑州大学 | Throwing method joined by a kind of paper-making pulping waste water ozone oxidation discoloring agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |