CN203582612U - Device for treating N-phosphonomethyl aminodiacetic acid (PMIDA) wastewater - Google Patents
Device for treating N-phosphonomethyl aminodiacetic acid (PMIDA) wastewater Download PDFInfo
- Publication number
- CN203582612U CN203582612U CN201320745111.6U CN201320745111U CN203582612U CN 203582612 U CN203582612 U CN 203582612U CN 201320745111 U CN201320745111 U CN 201320745111U CN 203582612 U CN203582612 U CN 203582612U
- Authority
- CN
- China
- Prior art keywords
- screen plate
- treatment
- filter plate
- processing vessel
- wastewater
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a device for treating N-phosphonomethyl aminodiacetic acid (PMIDA) wastewater, which belongs to the technical field of water treatment equipment and comprises a treatment container, wherein a vertical resin adsorbing unit is arranged inside the treatment container, a feed liquid inlet is formed below the resin adsorbing unit, and a sprayer is arranged above the resin adsorbing unit; a first filter plate and a second filter plate are arranged inside the treatment container below the sprayer from top to bottom in sequence, an alumina particle layer is arranged below the second filter plate, and a feed liquid outlet is formed below the alumina particle layer; an alkaline liquid inlet is formed above the first filter plate, and an acid liquid inlet is formed in the wall of the treatment container between the first filter plate and the second filter plate. The integrated wastewater treatment device provided by the utility model can purify PMIDA wastewater in a compact treatment device, and the resin adsorbing unit installed inside the treatment device can absorb the heat generated during neutralization reaction so as to accelerate adsorption treatment rate.
Description
Technical field
The utility model provides a kind for the treatment of unit of N-(phosphonomethyl) iminodiacetic acid wastewater, particularly relates to a kind for the treatment of unit of each processing unit coupling, belongs to water treatment equipment technology field.
Background technology
Pmida98 (PMIDA) is to produce the go out main raw material of natural disposition post-emergence herbicide of wide spectrum, is also important intermediate in agricultural chemicals, medicine, rubber, plating, dye industry.Its method for making is that iminodiacetic acid sodium salt is added to excessive hydrochloric acid, generates Iminodiacetate hydrochlorate, high temperature dehydration, then add phosphorous acid and drip formaldehyde, after dripping, then drip liquid caustic soda, stir crystallization.
Can produce in process of production a large amount of waste water, its treatment process mainly includes: membrane separation process, the precipitator method etc.
While adopting the method for membrane sepn, still can have the concentrated waste water that some are separated, be difficult to process.And the degree for the treatment of of the precipitator method is not high.
Summary of the invention
The purpose of this utility model is: a kind for the treatment of unit of N-(phosphonomethyl) iminodiacetic acid wastewater of integrated coupling is provided, make degree for the treatment of more thoroughly, system integration is higher.The technical scheme adopting is:
A treatment unit for N-(phosphonomethyl) iminodiacetic acid wastewater, includes processing vessel, is provided with vertical resin absorption unit in the inside of processing vessel, and the below of resin absorption unit is provided with feed liquid entrance, and the top of resin absorption unit is provided with spray thrower; In the processing vessel of spray thrower below, be disposed with the first screen plate and the second screen plate from top to bottom, below the second screen plate, be provided with aluminium oxide granule granulosa, below aluminium oxide granule granulosa, be provided with material liquid outlet; Above the first screen plate, be provided with alkali lye import, on the processing vessel wall between the first screen plate and the second screen plate, offer acid solution import.
As improvement of the present utility model, the height of resin absorption unit is 4/5 of processing vessel height.Can more effectively utilize space.
As improvement of the present utility model, the spacing between the first screen plate and the second screen plate is 1/2 of processing vessel height.Can guarantee the effect of precipitation.
beneficial effect
The integrated wastewater treatment equipment that the utility model provides can make N-(phosphonomethyl) iminodiacetic acid wastewater be purified in a compact treatment unit, owing to relating to more neutralization reaction in treating processes, so resin absorption cellular installation can be absorbed to the heat that neutralization reaction produces in treatment unit middle part, adsorption treatment speed is accelerated.
Accompanying drawing explanation
Fig. 1 is the structural representation of the treatment unit of the N-(phosphonomethyl) iminodiacetic acid wastewater that provides of the utility model.
Wherein, 1, processing vessel; 2, feed liquid entrance; 3, resin absorption unit; 4, the first screen plate; 5, the second screen plate; 6, aluminium oxide granule granulosa; 7, acid solution import; 8, material liquid outlet; 9, spray thrower; 10, alkali lye import.
Embodiment
Embodiment 1
As shown in Figure 1, a treatment unit for N-(phosphonomethyl) iminodiacetic acid wastewater, includes processing vessel 1, is provided with vertical resin absorption unit 3 in the inside of processing vessel 1, the below of resin absorption unit 3 is provided with feed liquid entrance 2, and the top of resin absorption unit 3 is provided with spray thrower 9; In the processing vessel of spray thrower 9 belows, be disposed with the first screen plate 4 and the second screen plate 5 from top to bottom, below the second screen plate 5, be provided with aluminium oxide granule granulosa 6, below aluminium oxide granule granulosa 6, be provided with material liquid outlet 8; Above the first screen plate 4, be provided with alkali lye import 10, on the processing vessel wall between the first screen plate 4 and the second screen plate 5, offer acid solution import 7.The height of resin absorption unit 3 is 4/5 of processing vessel 1 height.Spacing between the first screen plate 4 and the second screen plate 5 is 1/2 of processing vessel 1 height.
Below in conjunction with treating processes, device of the present utility model is further described:
N-(phosphonomethyl) iminodiacetic acid wastewater is sent into resin absorption unit from feed liquid entrance, iminodiacetonitrile is carried out to adsorption-edulcoration, then feed liquid can spray from the spray thrower at top, fall in the feed liquid above the first screen plate, again by sending into calcium hydroxide in alkali liquor inlet in liquid, make to produce organic calcium precipitation in waste water, by the first screen plate, held back; Liquid can enter to the space between the first screen plate and the second screen plate, in this part, adds hydrochloric acid soln again by acid solution import, by pH regulator to 3.0 left and right of feed liquid, and produces chlorate precipitation, and chlorate precipitation can be held back by the second screen plate; Feed liquid flows into the below of the second screen plate again, after the absorption of aluminium oxide granule granulosa, from material liquid outlet 8, leaves treatment unit.
Owing to can there is neutralization reaction above the first screen plate and above the second screen plate, the heat of its generation can be sent in resin absorption unit, improves adsorption efficiency.
Through a large amount of engineering tests, waste water index after treatment is: the content of phosphorus is about 4-8 mg/L; The content of carbon is about 50-60 mg/L; The content of nitrogen is about 20-30 mg/L; COD is about 100-120 mg/L.
Claims (3)
1. the treatment unit of a N-(phosphonomethyl) iminodiacetic acid wastewater, include processing vessel (1), it is characterized in that: in the inside of processing vessel (1), be provided with vertical resin absorption unit (3), the below of resin absorption unit (3) is provided with feed liquid entrance (2), and the top of resin absorption unit (3) is provided with spray thrower (9); In the processing vessel of spray thrower (9) below, be disposed with the first screen plate (4) and the second screen plate (5) from top to bottom, in the below of the second screen plate (5), be provided with aluminium oxide granule granulosa (6), in the below of aluminium oxide granule granulosa (6), be provided with material liquid outlet (8); In the first screen plate (4) top, be provided with alkali lye import (10), on the processing vessel wall between the first screen plate (4) and the second screen plate (5), offer acid solution import (7).
2. the treatment unit of N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, is characterized in that: the height of described resin absorption unit (3) is 4/5 of processing vessel (1) height.
3. the treatment unit of N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, is characterized in that: the spacing between described the first screen plate (4) and the second screen plate (5) is 1/2 of processing vessel (1) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745111.6U CN203582612U (en) | 2013-11-22 | 2013-11-22 | Device for treating N-phosphonomethyl aminodiacetic acid (PMIDA) wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745111.6U CN203582612U (en) | 2013-11-22 | 2013-11-22 | Device for treating N-phosphonomethyl aminodiacetic acid (PMIDA) wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203582612U true CN203582612U (en) | 2014-05-07 |
Family
ID=50580562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745111.6U Expired - Fee Related CN203582612U (en) | 2013-11-22 | 2013-11-22 | Device for treating N-phosphonomethyl aminodiacetic acid (PMIDA) wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203582612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601319A (en) * | 2013-11-22 | 2014-02-26 | 无锡合众信息科技有限公司 | Pmida wastewater treatment device |
-
2013
- 2013-11-22 CN CN201320745111.6U patent/CN203582612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601319A (en) * | 2013-11-22 | 2014-02-26 | 无锡合众信息科技有限公司 | Pmida wastewater treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105060545B (en) | A kind of system and method for sofening treatment Desulphurization for Coal-fired Power Plant waste water | |
| CN103553246A (en) | Device and method for softening hard water by using carbon dioxide in flue gas | |
| CN103382170A (en) | Preparation method for taurine | |
| CN104628186B (en) | The treatment process of Na-ion exchanger regeneration waste liquid and cyclic utilization system in a kind of process without drainage of waste water | |
| CN102320703A (en) | A kind of etching waste liquor is produced the recovery method of the mother liquor behind the basic copper chloride | |
| CN103408460B (en) | Recovery method of secondary products of iminodiacetonitrile and mother liquid treatment method | |
| CN101993386A (en) | Method for preparing electronic-grade N, N-dimethylformamide by ion exchange resin method | |
| CN102976450A (en) | Process for recovering alkali from squeezed waste liquid in viscose fiber production | |
| CN105540974A (en) | Processing method of high-hardness wastewater generated by ion exchange regeneration in high-concentration salt water treatment system | |
| CN103813985A (en) | Scrubber system having an automatic generator for an oxidizing-absorbing agent | |
| CN106335889B (en) | The method for producing sodium tripolyphosphate using thick sodium pyrophosphate | |
| CN203582612U (en) | Device for treating N-phosphonomethyl aminodiacetic acid (PMIDA) wastewater | |
| CN110937728A (en) | Desulfurization wastewater treatment method and system | |
| CN102381786A (en) | Zero-discharge treatment system for industrial circulating water | |
| CN103601319B (en) | Pmida wastewater treatment device | |
| CN108483710A (en) | A kind of seawater comprehensive utilizing method and system | |
| CN105271153A (en) | Method for preparing potassium dihydrogen phosphate from wet phosphoric acid | |
| CN102583825B (en) | Method for recycling and treating wastewater from glyphosate production | |
| CN104628086A (en) | Novel phosphorus removal method for alkaline leaching solution containing molybdenum and vanadium | |
| CN104445715B (en) | Treatment method for removing high-concentration nickel-containing electroplating wastewater | |
| CN103524553A (en) | Pmida mother liquor comprehensive treatment method | |
| CN104118954B (en) | A kind of method and device utilizing Chemical Mixed Fertilizer off gas treatment waste water | |
| CN208345942U (en) | A kind of system handling industrially desulfurized waste water | |
| CN202337721U (en) | Zero-discharge industrial circulating water treatment system | |
| CN105692960A (en) | Treatment method for glyphosate mother liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |