CN1064225A - COD and chromaticity adsorbent and production method thereof - Google Patents
COD and chromaticity adsorbent and production method thereof Download PDFInfo
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- CN1064225A CN1064225A CN 92102266 CN92102266A CN1064225A CN 1064225 A CN1064225 A CN 1064225A CN 92102266 CN92102266 CN 92102266 CN 92102266 A CN92102266 A CN 92102266A CN 1064225 A CN1064225 A CN 1064225A
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- Prior art keywords
- cod
- sorbent material
- production method
- sewage
- colourity
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- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
What the present invention relates to is a kind of COD in the sewage and the sorbent material and production method thereof of colourity removed.This sorbent material is that magnesium is sorbent material, has intensive pore structure, can adsorb in a big way colourity and COD composition, physical strength is good, resistance is little, can adorn post and use, the energy repeated regeneration, not only simplified sewage treatment process, and the present invention utilizes the tankage of saltworks to make raw material, the treatment of wastes with processes of wastes against one another.Be specially adapted to the sewage disposal of industries such as coking, papermaking, printing and dyeing.
Description
The present invention relates to a kind of sewage-treating agent and production method thereof, particularly a kind ofly be used for removing the COD of sewage and the particulate porous property sorbent material and the production method thereof of colourity.
The clear 53-31404 of Japanese documentation provides by Mg(OH)
2Fire the Powdered sorbent material that forms with the NaOH treated water slag of quenching, manufacture craft is numerous and diverse, and it is good that the removal effect of decolouring and COD does not have all that pure water magnesium mud fires.It is a kind of powdery inorganic adsorbent that the clear 53-45054 of Japanese documentation provides, because it is by adsorbing and removes wherein colourity and COD composition with common stirring of draining, handling and regeneration recovery complex process.
The objective of the invention is to provide a kind of novel C OD and chromaticity adsorbent, and it not only has wastewater purifying efficiency preferably, and treatment process is simple, and adsorbent reactivation is convenient.Be specially adapted to the sewage disposal of industries such as coking, papermaking, printing and dyeing.
Novel C OD provided by the invention and colourity particulate porous property sorbent material and production method thereof are the Mg(OH that makes generation)
2In contain 10～50% soluble salt, behind the natural airing, first compression moulding, through 350～550 ℃, 1～2 hour roasting, water activation nature is broken into sand shape.Wherein, Mg(OH)
2The tankage of available salt manufacturing (high and tow temperature salt) add NaOH and the NH with 60: 40～90: 10 weight ratios respectively
4OH solution makes, and wherein remains with 10～50%NaCl salt.
Novel C OD provided by the present invention and chromaticity adsorbent have intensive pore structure, can adsorb in a big way colourity and COD composition, and physical strength is good, resistance is little, and can adorn post and use, the energy repeated regeneration, thus simplified sewage treatment process.Particularly the present invention utilizes the tankage of saltworks to make raw material, the treatment of wastes with processes of wastes against one another.The present invention is specially adapted to the sewage disposal of industries such as coking, papermaking, printing and dyeing.
Present method can give more detailed description in conjunction with the following examples.
At first, will contain a certain amount of magnesium salts the tankage weight concentration that is mixed with soluble in water be 30%～70% salts solution, then, add respectively, regulate PH more than 10, generate white Mg(OH with 10%～20% concentration NaOH and 10%～15% ammoniacal liquor)
2Precipitation was placed more than 12 hours, and top clear liquid inclines, wash with water 1～5 time, with sedimentation and filtration, airing, the compacting slivering, be put in 350 ℃～500 ℃ muffle furnaces roasting 1～2 hour, the activation that is soaked in water before the use, many property of porous sand shape magnesium type sorbent material.Adsorbent reactivation can roasting in sampling device, generally gets final product in 10～40 minutes 250 ℃～400 ℃ following roastings.Its physicals is as follows:
1. density (g/cm
3):
Tamped density 0.62～0.73, apparent density 0.9～1.20, real density 1.9～2.13;
2. micro pore volume (cm
3/ g): 0.4～0.6;
3. porosity: 0.33～0.40;
The effect of disposing of sewage with said novel C OD of the present invention and chromaticity adsorbent can illustrate with following examples.
Example 1: draining after the biochemical treatment of processing coked waste water
Former water: PH is 8.5, COD
CrBe 405mg/L, color is pale brown look, and colourity (extension rate) is 30 times, and through adsorption column absorption, contact was separated 30 minutes, and the highest clearance of COD can reach 98%, color removal 100%.
Example 2: handle dyeing and printing sewage (table 2)
Former water: COD
CrBe 1041.1mg/L, color is a reddish black, and colourity (extension rate) is 1000 times, and through adsorption column absorption, contact was separated 30 minutes, and the highest clearance of COD can reach 93%, color removal 99%.
Example 3: the adsorption effect test behind the adsorbent reactivation
With the saturated sorbent material airing after disposing of sewage, 300～500 ℃ roasting temperatures 30 minutes, water activation aftertreatment dyeing and printing sewage, COD
CrClearance reaches more than 90%, and percent of decolourization reaches 99%.
Claims (2)
1, a kind ofly is used for removing the COD of sewage and the particulate porous property sorbent material and the production method thereof of colourity, it is characterized in that making the Mg (OH) of generation
2In contain 10～50% soluble salt, behind the natural airing, first compression moulding, through 350～550 ℃, 1～2 hour roasting, water activation nature is broken into sand shape.
2, sorbent material according to claim 1 and production method thereof is characterized in that Mg(OH)
2The tankage of available salt manufacturing (high and tow temperature salt) add NaOH and the NH with 60: 40～90: 10 weight ratios respectively
4OH solution makes, and wherein remains with 10～50%NaCl salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102266 CN1064225A (en) | 1992-04-07 | 1992-04-07 | COD and chromaticity adsorbent and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102266 CN1064225A (en) | 1992-04-07 | 1992-04-07 | COD and chromaticity adsorbent and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1064225A true CN1064225A (en) | 1992-09-09 |
Family
ID=4939547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102266 Withdrawn CN1064225A (en) | 1992-04-07 | 1992-04-07 | COD and chromaticity adsorbent and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064225A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353422A (en) * | 2014-10-21 | 2015-02-18 | 繁昌县倍思生产力促进中心有限公司 | Antibacterial breathing mask adsorbent and preparation method thereof |
| CN112499853A (en) * | 2020-10-23 | 2021-03-16 | 广东溢达纺织有限公司 | Method for recycling hydrolyzed dye in dyeing wastewater |
-
1992
- 1992-04-07 CN CN 92102266 patent/CN1064225A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353422A (en) * | 2014-10-21 | 2015-02-18 | 繁昌县倍思生产力促进中心有限公司 | Antibacterial breathing mask adsorbent and preparation method thereof |
| CN112499853A (en) * | 2020-10-23 | 2021-03-16 | 广东溢达纺织有限公司 | Method for recycling hydrolyzed dye in dyeing wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C03 | Withdrawal of patent application (patent law 1993) | ||
| WW01 | Invention patent application withdrawn after publication |