CN104944497B - Method for treating high-concentration ammonia nitrogen in coal chemical industry wastewater - Google Patents
Method for treating high-concentration ammonia nitrogen in coal chemical industry wastewater Download PDFInfo
- Publication number
- CN104944497B CN104944497B CN201510263565.3A CN201510263565A CN104944497B CN 104944497 B CN104944497 B CN 104944497B CN 201510263565 A CN201510263565 A CN 201510263565A CN 104944497 B CN104944497 B CN 104944497B
- Authority
- CN
- China
- Prior art keywords
- ammonia nitrogen
- iron
- aluminum
- organic composite
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention relates to a method for treating high-concentration ammonia nitrogen in coal chemical industry wastewater, belonging to the field of sewage treatment. The method comprises the following steps: mixing an organic composite denitrifier modified magnesium-aluminum-iron hydrotalcite magnetic nano adsorbing material and an adhesive in a mass ratio of 1:5 to obtain a viscous liquid, coating the viscous liquid to the surface layer of an adsorbing bar, drying in the ventilation state, putting in an adsorption column, enabling the coal chemical industry wastewater penetrating fluid to flow through the adsorption column to adsorb 5000-10000 mg/L high-concentration ammonia nitrogen in the wastewater, aging the surface layer of the adsorbing material surface layer after reaching the saturated state so that the aged adsorbing material surface layer sheds layer by layer under the action of an external magnetic field and water flow scour, and finally, determining the ammonia nitrogen content in the wastewater. The method can renew the adsorbing material, does not need to regenerate the adsorbing material, and can not cause secondary pollution to the environment. The ammonia nitrogen concentration in the finally discharged wastewater is lower than 0.5 mg/L, and the removal rate is up to 99.99% above.
Description
Technical field
The present invention relates to a kind of process coal chemical industrial waste water middle and high concentration ammonia nitrogen method, belong to sewage treatment area.
Background technology
Coal chemical industrial waste water refers to based on high-concentration coal washess, containing the poisonous and hazardous thing such as a large amount of phenol, oil, ammonia nitrogen
Matter, in 5000mg/l～10000mg/l, great majority are with the state of ammonium ion and free ammonia holding balance to the ammonia nitrogen in waste water
Exist, have that discharge capacity is big, pollution range is wide, discharging modes are complicated, pollution species are various, polluter strong toxicity, dirt
The features such as recover relatively difficult after dye thing discharge.
In recent years, with expanding economy, the heavy industry such as oil, chemical industry quickly grows, the spring after various places chemical enterprise such as rain
Gush out as Radix Crotalariae szemoensis, thing followed air, water pollution problems are also increasingly paid attention to by people, the high ammonia-nitrogen wastewater producing therefrom
Become one of industry development restraining factors.
Ammonia nitrogen waste water enters water body, particularly flows to more slow lake, bay, easily causes algae and other in water micro-
Biological amount reproduction, forms eutrophication pollution, except meeting makes water treatment plants run difficulty, causes the abnormal flavour of drinking water
Outward, oxygen in water can be made when serious to decline, Fish mortality, result even in lake and be destroyed, ammonia nitrogen also makes water disinfection
Increase chlorine dosage with industrial circulating water sterilisation process, to some metals, particularly to copper, there are corrosivity, in order to subtract
The waste of few water resource and environmental pollution, raising Business Economic Benefit and society's effect, carry out advanced treating gesture to ammonia nitrogen waste water and exist
Must go.
The main method removing ammonia nitrogen at present has: break point chlorination method, blow-off method and vaporizing extract process；Break point chlorination method is by chlorine
It is passed through in waste water and reaches certain point, chlorinity of wandering about as a refugee in water when this is minimum, and the concentration of ammonia is reduced to zero, but operating cost
Height, by-product chloramines and chloro have an opportunity to cause secondary pollution problem, also there is the such as Publication No. again of secondary pollution problem
Cn101428889, a kind of method disclosed in entitled " processing method removing ammonia nitrogen in waste water " is first in wastewater inlet pipe
Entrance is filled with compressed air, injects waste water mixing reactor through high pressure nozzle, then adds denitrifier in mixing reactor,
To flow out in total for mixed waste water Venturi afterwards, the Tuo Chizhong that blows entering corridor type gallery structure carries out aeration stripping,
The method is simple to operate, improves ammonia nitrogen removal frank, but or cannot solve the problems, such as the secondary pollution that ammonia nitrogen discharge brings；In addition
When blow-off method and vaporizing extract process refer to adjust ph value in waste water to alkalescence, ion state ammonium is converted into molecular state ammonia, then by waste gas with
Gas contacts, and makes ammonia nitrogen transfer to gas phase from liquid phase, and the method is usually used in high-concentration ammonia nitrogenous wastewater and processes, but during practical operation
It is low to there is treatment effeciency in time, and easily causes secondary pollution to environment.
Content of the invention
Present invention mainly solves technical problem: for organic composite denitrifier combine blow-off method in high-concentration ammonia nitrogenous wastewater
There is ammonia emission in processing procedure, cause secondary environmental pollution problem, there is provided a kind of organic composite denitrifier modification magnesium-aluminum-iron
Hydrotalcite nano magnetic adsorptive material, the aging adsorbing material top layer of energy after absorption high-concentration ammonia nitrogen in waste water, and saturation, additional
Under magnetic field and current scour effect, realize the renewal of adsorbing material, need not regenerate.
In order to achieve the above object, the technical solution adopted in the present invention is:
(1) magnesium-aluminum-iron brucite preparation: weigh 5.8～10.2g magnesium nitrate respectively, 3.5～7.0g aluminum nitrate, 4.6～
13.4g ferric nitrate is dissolved in the ethanol solution that 350～480ml contains 4.2～8.4g carbamide；1h is stirred under room temperature；Fall
Enter to be heated to 150 DEG C in hydrothermal reaction kettle, react 12～14h；It is cooled to room temperature；Cleaned with ethanol and deionized water after two times
8h is dried at 100 DEG C, obtains nano magnalium molten iron Talcum；
(2) magnetize: by the nano magnalium molten iron Talcum of above-mentioned preparation be 36.5% with mass concentration successively concentrated hydrochloric acid and
Saturation potassium hydroxide solution soaks 6h, is placed in Muffle furnace, dries at temperature is 110 DEG C, near magnetic field magnetization；
(3) modified: the nano magnalium molten iron talc materials after pickling, alkali leaching and magnetization to be immersed 10～30g organic multiple
Close in denitrifier, stir 40～60min；
(4) dry: modified nano magnalium molten iron talc materials deionized water is cleaned 3 times, in nitrogen ceiling
Dry under part；
(5) activate: at temperature is 800 DEG C～900 DEG C, calcine 4～6h, you can.
Described organic composite denitrifier is ethyl acetate, propylene glycol amine, Fumaric acid composition, by quality ratio,
20%～45% ethyl acetate, 20%～55% propylene glycol amine, 15%～45% Fumaric acid.
The application process of the present invention is:
(1) by the organic composite preparing denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material and adhesive
5:1 is made into viscous fluid in mass ratio, and by viscous fluid in plastic sheet top layer, coating layer thickness is 3～6cm, by coated viscous solution
Plastic sheet is dried 10～20min under ventilation state, and described adhesive is calculated as 18 parts of polyvinyl alcohol, 22 parts of water glass with parts by weight
Glass, 5 parts of Graphenes, 35 parts of starch and 20 parts of water；
(2) plastic sheet of coated viscous fluid is placed in adsorption tower, every layer of setting height(from bottom) is 10～50cm, space height is
50～100cm, allows the coal chemical industrial waste water penetrating fluid that ammonia nitrogen concentration is 5000～10000mg/l flow through adsorption tower, and flow speed control 5～
15m3/ h, adsorbs dwell time in the tower 40～60min, until the organic composite denitrifier modification magnesium-aluminum-iron neatly of plastic sheet surface
Stone magnetic nano adsorption material ammonia nitrogen absorption reaches saturation, organic composite denitrifier aging magnesium-aluminum-iron brucite magnetic Nano material
Top layer；
(3) coal chemical industrial waste water penetrating fluid current wash away with externally-applied magnetic field effect under, aging adsorbing material top layer layer
Layer comes off；
(4) finally measure ammonia-nitrogen content in wastewater effluent.
The principle of the present invention: magnesium-aluminum-iron hydrotalcite material has specific surface area greatly, belongs to mesoporous material material, through organic multiple
Close denitrifier modified to ammonia nitrogen in waste water, there is absorption property it is often more important that, the addition of organic composite denitrifier, can make
Obtain after adsorbing material absorption ammonia nitrogen reaches saturation and can voluntarily come off layer by layer, realize the renewal on adsorbing material surface, again adsorb useless
Ammonia nitrogen in high density in water, and the residue after coming off separates in current scour and externally-applied magnetic field effect.
The invention has the beneficial effects as follows:
(1) no harmful gass produce, and are not result in secondary environmental pollution；
(2) prepare organic composite denitrifier modification magnesium-aluminum-iron hydrotalcite nano magnetic adsorptive material, in absorption waste water
The aging adsorbing material top layer of energy after ammonia nitrogen in high density, and saturation, under externally-applied magnetic field and current scour act on, realizes adsorbing material
Renewal, need not regenerate；
(3) residue no moisture, small volume after coming off, separable under externally-applied magnetic field, ammonia nitrogen removal frank is high, low cost.
Specific embodiment
The preparation of organic composite denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material:
(1) magnesium-aluminum-iron brucite preparation: weigh 5.8～10.2g magnesium nitrate respectively, 3.5～7.0g aluminum nitrate, 4.6～
13.4g ferric nitrate is dissolved in the ethanol solution that 350～480ml contains 4.2～8.4g carbamide；1h is stirred under room temperature；Fall
Enter to be heated to 150 DEG C in hydrothermal reaction kettle, react 12～14h；It is cooled to room temperature；Cleaned with ethanol and deionized water after two times
8h is dried at 100 DEG C, obtains nano magnalium molten iron Talcum；
(2) magnetize: by the nano magnalium molten iron Talcum of above-mentioned preparation be 36.5% with mass concentration successively concentrated hydrochloric acid and
Saturation potassium hydroxide solution soaks 6h, is placed in Muffle furnace, dries at temperature is 110 DEG C, near magnetic field magnetization；
(3) modified: the nano magnalium molten iron talc materials after pickling, alkali leaching and magnetization to be immersed 10～30g organic multiple
Close in denitrifier, stir 40～60min；
(4) dry: modified nano magnalium molten iron talc materials deionized water is cleaned 3 times, in nitrogen ceiling
Dry under part；
(5) activate: at temperature is 800 DEG C～900 DEG C, calcine 4～6h, you can.
Described organic composite denitrifier is ethyl acetate, propylene glycol amine, Fumaric acid composition, by quality ratio,
20%～45% ethyl acetate, 20%～55% propylene glycol amine, 15%～45% Fumaric acid.
The concrete application of nano adsorption material removal high-concentration ammonia nitrogenous wastewater:
(1) by the organic composite preparing denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material and adhesive
5:1 is made into viscous fluid in mass ratio, and by viscous fluid in plastic sheet top layer, coating layer thickness is 3～6cm, by coated viscous solution
Plastic sheet is dried 10～20min under ventilation state, and described adhesive is calculated as 18 parts of polyvinyl alcohol, 22 parts of water glass with parts by weight
Glass, 5 parts of Graphenes, 35 parts of starch and 20 parts of water；
(2) plastic sheet of coated viscous fluid is placed in adsorption tower, every layer of setting height(from bottom) is 10～50cm, space height is
50～100cm, allows the coal chemical industrial waste water penetrating fluid that ammonia nitrogen concentration is 5000～10000mg/l flow through adsorption tower, and flow speed control 5～
15m3/ h, adsorbs dwell time in the tower 40～60min, until the organic composite denitrifier modification magnesium-aluminum-iron neatly of plastic sheet surface
Stone magnetic nano adsorption material ammonia nitrogen absorption reaches saturation, organic composite denitrifier aging magnesium-aluminum-iron brucite magnetic Nano material
Top layer；
(3) coal chemical industrial waste water penetrating fluid current wash away with externally-applied magnetic field effect under, aging adsorbing material top layer layer
Layer comes off；
(4) finally measure ammonia-nitrogen content in wastewater effluent.
Example 1
Weigh 5.8g magnesium nitrate first respectively, 3.5g aluminum nitrate, 4.6g ferric nitrate are dissolved in 350ml and contain 4.2g carbamide
In ethanol solution；1h is stirred under room temperature；Pour into and in hydrothermal reaction kettle, be heated to 150 DEG C, react 12h, be cooled to room temperature；With
Ethanol and deionized water are dried 8h after cleaning two times at 100 DEG C, obtain nano magnalium molten iron Talcum；Receiving above-mentioned preparation again
The concentrated hydrochloric acid that rice magnesium-aluminum-iron brucite is 36.5% with mass concentration successively and saturation potassium hydroxide solution soak 6h, are placed in Muffle
In stove, dry at temperature is 110 DEG C, near magnetic field magnetization；Then by the nano magnalium molten iron after pickling, alkali leaching and magnetization
In talc materials immersion 10g organic composite denitrifier, wherein comprise 2.5g ethyl acetate, 3.5g propylene glycol amine, 4g Fumaric acid,
Stirring 40min；Modified nano magnalium molten iron talc materials deionized water is cleaned 3 times, dries under nitrogen protective condition
Dry, calcine 4h at temperature is 800 DEG C, you can obtain organic composite denitrifier modification magnesium-aluminum-iron brucite magnetic Nano adsorption material
Material；By the organic composite preparing denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material with adhesive in mass ratio
5:1 is made into viscous fluid, and by viscous fluid in plastic sheet top layer, coating layer thickness is 3cm, by the plastic sheet of coated viscous solution in ventilation
10min is dried under state；The plastic sheet of coated viscous fluid is placed in adsorption tower, every layer of setting height(from bottom) is 10cm, space height
For 50cm, the coal chemical industrial waste water penetrating fluid that ammonia nitrogen concentration is 5000mg/l is allowed to flow through adsorption tower, flow speed control 5m3/ h, adsorption tower
Interior time of staying 40min, until the organic composite denitrifier modification magnesium-aluminum-iron brucite magnetic Nano adsorption material on adsorbing bar surface
Material ammonia nitrogen absorption reaches saturation, organic composite denitrifier aging magnesium-aluminum-iron brucite magnetic Nano material top layer；Coal chemical industrial waste water
Penetrating fluid current wash away with externally-applied magnetic field effect under, aging adsorbing material top layer comes off layer by layer, finally measure waste water go out
Ammonia-nitrogen content 0.4mg/l in water, ammonia nitrogen removal frank is more than 99.99%.
Example 2
Weigh 8.2g magnesium nitrate first respectively, 4.5g aluminum nitrate, 10.3g ferric nitrate are dissolved in 400ml and contain 5.4g carbamide
Ethanol solution in；1h is stirred under room temperature；Pour into and in hydrothermal reaction kettle, be heated to 150 DEG C, react 13h, be cooled to room temperature；
Cleaned with ethanol and deionized water after two times and 8h is dried at 100 DEG C, obtain nano magnalium molten iron Talcum；Again by above-mentioned preparation
The concentrated hydrochloric acid that nano magnalium molten iron Talcum is 36.5% with mass concentration successively and saturation potassium hydroxide solution soak 6h, are placed in horse
Not in stove, dry at temperature is 110 DEG C, near magnetic field magnetization；Then by the nanometer Mg ferro-aluminum after pickling, alkali leaching and magnetization
In hydrotalcite material immersion 20g organic composite denitrifier, wherein comprise 6g ethyl acetate, 7g propylene glycol amine, 7g Fumaric acid, stir
Mix 50min；Modified nano magnalium molten iron talc materials deionized water is cleaned 3 times, dries under nitrogen protective condition,
Calcine 5h at temperature is 850 DEG C, you can obtain organic composite denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material,
By the organic composite preparing denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material and adhesive 5:1 in mass ratio
It is made into viscous fluid, by viscous fluid in plastic sheet top layer, coating layer thickness is 5cm, by the plastic sheet of coated viscous solution in ventilation shape
15min is dried under state；The plastic sheet of coated viscous fluid is placed in adsorption tower, every layer of setting height(from bottom) is 30cm, space height is
70cm, allows the coal chemical industrial waste water penetrating fluid that ammonia nitrogen concentration is 8000mg/l flow through adsorption tower, flow speed control 10m3/ h, in adsorption tower
Time of staying 50min, until the organic composite denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material of plastic sheet surface
Ammonia nitrogen absorption reaches saturation, organic composite denitrifier aging magnesium-aluminum-iron brucite magnetic Nano material top layer；Coal chemical industrial waste water oozes
Transparent liquid current wash away with externally-applied magnetic field effect under, aging adsorbing material top layer comes off layer by layer, finally measure wastewater effluent
Middle ammonia-nitrogen content 0.3mg/l, ammonia nitrogen removal frank is more than 99.99%.
Example 3
Weigh 10.2g magnesium nitrate first respectively, 7.0g aluminum nitrate, 13.4g ferric nitrate are dissolved in 480ml and contain 8.4g carbamide
Ethanol solution in；1h is stirred under room temperature；Pour into and in hydrothermal reaction kettle, be heated to 150 DEG C, react 14h, be cooled to room temperature；
Cleaned with ethanol and deionized water after two times and 8h is dried at 100 DEG C, obtain nano magnalium molten iron Talcum；Again by above-mentioned preparation
The concentrated hydrochloric acid that nano magnalium molten iron Talcum is 36.5% with mass concentration successively and saturation potassium hydroxide solution soak 6h, are placed in horse
Not in stove, dry at temperature is 110 DEG C, near magnetic field magnetization；Then by the nanometer Mg ferro-aluminum after pickling, alkali leaching and magnetization
In hydrotalcite material immersion 30g organic composite denitrifier, wherein comprise 9g ethyl acetate, 12g propylene glycol amine, 12g Fumaric acid,
Stirring 60min；Modified nano magnalium molten iron talc materials deionized water is cleaned 3 times, dries under nitrogen protective condition
Dry, calcine 6h at temperature is 900 DEG C, you can obtain organic composite denitrifier modification magnesium-aluminum-iron brucite magnetic Nano adsorption material
Material, by the organic composite preparing denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material with adhesive in mass ratio
5:1 is made into viscous fluid, and by viscous fluid in plastic sheet top layer, coating layer thickness is 6cm, by the plastic sheet of coated viscous solution in ventilation
20min is dried under state；The plastic sheet of coated viscous fluid is placed in adsorption tower, every layer of setting height(from bottom) is 50cm, space height
For 100cm, the coal chemical industrial waste water penetrating fluid that ammonia nitrogen concentration is 10000mg/l is allowed to flow through adsorption tower, flow speed control 15m3/ h, absorption
Dwell time in the tower 60min, until the organic composite denitrifier modification magnesium-aluminum-iron brucite magnetic Nano absorption on adsorbing bar surface
Material ammonia nitrogen absorption reaches saturation, organic composite denitrifier aging magnesium-aluminum-iron brucite magnetic Nano material top layer；Coal Chemical Industry is given up
Water penetration liquid current wash away with externally-applied magnetic field effect under, aging adsorbing material top layer comes off layer by layer, finally measure waste water
Ammonia-nitrogen content 0.2mg/l in water outlet, ammonia nitrogen removal frank is more than 99.99%.
Claims (1)
1. a kind of process coal chemical industrial waste water middle and high concentration ammonia nitrogen method it is characterised in that:
(1) magnesium-aluminum-iron brucite preparation: weigh 5.8～10.2g magnesium nitrate, 3.5～7.0g aluminum nitrate, 4.6～13.4g nitre respectively
Sour dissolved ferric iron contains in the ethanol solution of 4.2～8.4g carbamide in 350～480ml；1h is stirred under room temperature；Pour hydro-thermal into anti-
Answer and in kettle, be heated to 150 DEG C, react 12～14h；It is cooled to room temperature；Cleaned dry at 100 DEG C after 2 times with ethanol and deionized water
Dry 8h, obtains nano magnalium molten iron Talcum；
(2) magnetize: by the nano magnalium molten iron Talcum of above-mentioned preparation be 36.5% with mass concentration successively concentrated hydrochloric acid and saturation
Potassium hydroxide solution soaks 6h, is placed in Muffle furnace, dries at temperature is 110 DEG C, near magnetic field magnetization；
(3) modified: the nano magnalium molten iron talc materials immersion 10～30g organic composite after pickling, alkali leaching and magnetization is taken off
In nitrogen agent, stir 40～60min；Described organic composite denitrifier is ethyl acetate, propylene glycol amine, Fumaric acid composition,
By quality ratio, 20%～45% ethyl acetate, 20%～55% propylene glycol amine, 15%～45% Fumaric acid；
(4) dry: modified nano magnalium molten iron talc materials deionized water is cleaned 3 times, under nitrogen protective condition
Dry；
(5) activate: at temperature is 800 DEG C～900 DEG C, calcine 4～6h, you can；
(6) by the organic composite preparing denitrifier modification magnesium-aluminum-iron brucite magnetic nano adsorption material and adhesive by matter
Amount is made into viscous fluid than 5:1, and by viscous fluid in plastic sheet top layer, coating layer thickness is 3～6cm, by the plastics of coated viscous solution
Piece is dried 10～20min under ventilation state, described adhesive with parts by weight be calculated as 18 parts of polyvinyl alcohol, 22 parts of waterglass, 5
Part Graphene, 35 parts of starch and 20 parts of water；
(7) plastic sheet of coated viscous fluid being placed in adsorption tower, every layer of setting height(from bottom) is 10～50cm, space height is 50～
100cm, allows the coal chemical industrial waste water penetrating fluid that ammonia nitrogen concentration is 5000～10000mg/l flow through adsorption tower, and flow speed control 5～
15m3/ h, adsorbs dwell time in the tower 40～60min, until the organic composite denitrifier modification magnesium-aluminum-iron neatly of plastic sheet surface
Stone magnetic nano adsorption material ammonia nitrogen absorption reaches saturation, organic composite denitrifier aging magnesium-aluminum-iron brucite magnetic Nano material
Top layer；
(8) coal chemical industrial waste water penetrating fluid current wash away with externally-applied magnetic field effect under, aging adsorbing material top layer takes off layer by layer
Fall；
(9) finally measure ammonia-nitrogen content in wastewater effluent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510263565.3A CN104944497B (en) | 2015-05-21 | 2015-05-21 | Method for treating high-concentration ammonia nitrogen in coal chemical industry wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510263565.3A CN104944497B (en) | 2015-05-21 | 2015-05-21 | Method for treating high-concentration ammonia nitrogen in coal chemical industry wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104944497A CN104944497A (en) | 2015-09-30 |
| CN104944497B true CN104944497B (en) | 2017-01-18 |
Family
ID=54159640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510263565.3A Active CN104944497B (en) | 2015-05-21 | 2015-05-21 | Method for treating high-concentration ammonia nitrogen in coal chemical industry wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104944497B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693925A (en) * | 2016-12-25 | 2017-05-24 | 常州亚环环保科技有限公司 | Preparation method of saturation self-falling-off ammonia-nitrogen wastewater adsorbent |
| CN108946858B (en) * | 2018-08-01 | 2021-08-20 | 江苏艾特克环境工程有限公司 | Sewage nitrogen and phosphorus removal agent and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005211818A (en) * | 2004-01-30 | 2005-08-11 | Mitsubishi Chemicals Corp | Adsorbent |
| CN102502909A (en) * | 2011-11-01 | 2012-06-20 | 同济大学 | Method of using magnesium-aluminum-iron ternary hydrotalcite-like to remove perchlorate in water |
| CN102633345A (en) * | 2012-04-28 | 2012-08-15 | 常州亚环环保科技有限公司 | Method for treating high-concentration ammonia nitrogen in coal chemical wastewater |
| CN102633318A (en) * | 2012-04-28 | 2012-08-15 | 常州亚环环保科技有限公司 | Treatment method for high-concentration ammonia nitrogen in urine waste water |
-
2015
- 2015-05-21 CN CN201510263565.3A patent/CN104944497B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005211818A (en) * | 2004-01-30 | 2005-08-11 | Mitsubishi Chemicals Corp | Adsorbent |
| CN102502909A (en) * | 2011-11-01 | 2012-06-20 | 同济大学 | Method of using magnesium-aluminum-iron ternary hydrotalcite-like to remove perchlorate in water |
| CN102633345A (en) * | 2012-04-28 | 2012-08-15 | 常州亚环环保科技有限公司 | Method for treating high-concentration ammonia nitrogen in coal chemical wastewater |
| CN102633318A (en) * | 2012-04-28 | 2012-08-15 | 常州亚环环保科技有限公司 | Treatment method for high-concentration ammonia nitrogen in urine waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104944497A (en) | 2015-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102912366B (en) | Ferrous sulfide passivation cleaning agent and preparation method and application thereof | |
| CN101780421B (en) | Ammonia nitrogen adsorbent and preparation method and application method thereof | |
| Zhuang et al. | Advanced treatment of biologically pretreated coal gasification wastewater by a novel heterogeneous Fenton oxidation process | |
| CN106563423A (en) | Sewage treating agent | |
| CN102794183A (en) | Preparation method and use of loading activated carbon | |
| CN107774232A (en) | A kind of magnetic active carbon mixture of the ball containing charcoal and preparation method thereof | |
| CN104944497B (en) | Method for treating high-concentration ammonia nitrogen in coal chemical industry wastewater | |
| CN104261549B (en) | Sponge iron purifier and preparation method and application thereof | |
| CN104437391B (en) | Modified zeolite as well as preparation method and application thereof | |
| CN104474662B (en) | Preparation method of stabilizer for treating arsenic-containing waste residue | |
| Wang et al. | Landfill leachate treatment with Mn and Ce oxides impregnated GAC–ozone treatment process | |
| CN101797471B (en) | Treating and recycling method of tail gas generating in sulfonated naphthaldehyde water reducing agent production and special equipment | |
| CN109095586A (en) | A kind of cupric mixed-metal oxides/sodium peroxydisulfate system and its application | |
| CN110092438B (en) | Method for treating organic wastewater by using electrolytic manganese residues as photocatalyst | |
| CN104876295A (en) | Method for treating high-concentration ammonia and nitrogen in chemical industry waste water | |
| WO2009087507A1 (en) | Process for reducing the nitrogen content of zootechnic refluents | |
| CN104925890B (en) | A kind of Refinery Wastewater middle and high concentration ammonia nitrogen method | |
| CN203484050U (en) | Chlorine-containing flue gas absorption and purification device | |
| CN102847519B (en) | Composite absorbing material for removing chlorate in water and preparation method thereof | |
| CN104909425B (en) | Method used for treating high concentration ammonia nitrogen in metallurgical waste water | |
| CN110052269A (en) | A kind of preparation method of depth-averaged model ozone catalytic oxidation catalyst | |
| CN104907047A (en) | Method used for treating highly concentrated ammonia-nitrogen in rare earth waste water | |
| CN104496093B (en) | Method for performing purification treatment on titanium white wastewater by utilizing salt slurry | |
| CN102847518A (en) | Composite adsorbing material for removing phosphite radicals in water and preparation method thereof | |
| CN101791535B (en) | Method for preparing manganese polysilicate doped manganese dioxide adsorbent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211228 Address after: Room 407-2-6, building C, Tian'an Digital City, 588 Changwu South Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province 213100 Patentee after: CHANGZHOU XIAOGUO INFORMATION SERVICES Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |
|
| TR01 | Transfer of patent right |