CN106517632A - Concentration device and method for reverse osmosis membrane concentrated ammonium nitrate waste water - Google Patents
Concentration device and method for reverse osmosis membrane concentrated ammonium nitrate waste water Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/18—Nitrates of ammonium
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention relates to the technical field of waste water treatment, in particular to a concentration device and method for reverse osmosis membrane concentrated ammonium nitrate waste water. The device comprises a low pressure pump, a first-stage low pressure reverse osmosis membrane modulus, a high pressure pump, a second-stage high pressure concentrated water reverse osmosis membrane modulus and an evaporation and concentration device; the second-stage high pressure concentrated water reverse osmosis membrane modulus is provided with a return pipe, and the return pipe is communicated with a first-stage low pressure reverse osmosis membrane modulus and a second-stage high pressure concentrated water reverse osmosis membrane modulus separately; the concentration device further comprises a water recovery device and a control unit, the water recovery device is communicated with the first-stage low pressure reverse osmosis membrane modulus, and the control unit is connected with valves of a low pressure pump pipeline and a high pressure pump pipeline separately. According to the concentration device and method, the investment is low, operation is easy, full automatic control is achieved, the production labor environment is improved, and the problems that in the prior art, the concentration effect for treating high-concentration ammonium nitrate waste water is poor, and filter precision is low are solved; meanwhile, ammonium nitrate in waste water is extracted, the economic benefit is increased, a water resource is saved, and no waste discharge is caused.
Description
Technical field
The present invention relates to technical field of waste water processing, and in particular to a kind of concentration dress of reverse osmosis membrane cone nitric acid ammonium waste water
Put and method for concentration.
Background technology
Processing ammonium nitrate wastewater at present mainly has following several：Biochemical process, blow-off method, ion exchange and electroosmose process
Deng.Biochemical process is, by wastewater collection to biochemistry pool, with antibacterial by ammonium salt decomposition, to eventually form nitrogen.In biochemical reaction mistake
Cheng Zhong, needs to add carbon source and strain, and when ammonium salt concentration is slightly higher in water, i.e., when ammonia nitrogen reaches 500mg/L, strain will
It is dead, it is impossible to carry out biochemical reaction, while so that ammonium nitrate lost in vain.Stripping rule needs plus chemical agent adjusts pH
Value, and in waste water, ammonium salt residual quantity is too high after stripping, does not reach discharge standard, and stripping gas out causes secondary to air
Pollution.Ion exchange is spent ion exchange resin absorption ammonium nitrate, but regenerative operation is frequently, will also process regeneration washing water,
Technique is loaded down with trivial details.Most of ammonium nitrate in waste water can be reclaimed by electroosmose process, but during electrodialytic technique process waste water, multistage
The electrodialyzer latter end of series connection, due to water in most of ammonium nitrate, i.e. conductive ion has been removed, and in water, conductive ion is very
It is few, just easily there is polarization reaction.So so that the ammonium nitrate removing in water is incomplete, it is impossible to reach national requirements for environmental protection, water
The ammonia nitrogen concentration of middle residual is also too high, it is impossible to reach ammonia nitrogen 10mg/L and total nitrogen in the water for promulgating national requirements for environmental protection for 2011≤
The index of 30mg/L.Can neither discharge also cannot reuse, cause very big puzzlement to manufacturing enterprise.
The defect of electrodialysis process：
（1）Easily there is permeable membrane diffusing phenomenon and string water phenomenon
The concentrated water of enrichment is circulated in concentrated water room, compared with its fresh water, both differ greatly at concentration, generate very high osmotic pressure,
It is easy to cross-film migration so that the water quality of fresh water degenerates, the concentration of concentrated water is reduced.The deep or light water-stop of electrodialyzer is to rely on
The elasticity of ion exchange membrane after electrodialyzer is unpicked and washed, is reset again sealing, the dislocation that ion exchange membrane occurs, and makes sealing
It is not tight, concentrated water and fresh water crossfire are easily caused, final outflow water water quality is affected.
（2）The salt rejection rate of electrodialyzer is not high
By taking the electrodialyzer for preparing pure water as an example, the salt rejection rate about 70% or so of general electrodialyzer is invented in recent years
The full automatic control electrodialyzer of electrodeless water, its salt rejection rate are the water inlet of more than 95%, i.e. electrical conductivity less than 1 000 μ S/cm, go out water power
Conductance is in 50 μ S/cm or so.
（3）Generation concentration polarization is reacted, it is impossible to carry out advanced treating
In the case that conductive ion is little in the water of electrodialysis process process, concentration polarization can occur in electrodialyzer existing
As water decomposition supplements conductive ion into H+ and OH-, and wasting substantial amounts of electricity, two preventing water quality from being carried for this
It is high.
（4）Electrodialysis process draining cannot be fully used
In the draining of current electrodialysis process, the mass concentration of ammonia nitrogen is in 20 mg/L or so, it is impossible to directly discharge, big in design
The waste water after process is entered into recirculated cooling water all.GB 50335—2002《Reuse of wastewater engineering design code》Regulation,
When recycled water is used as cooling water, the water quality index of draining is ρ in water（Ammonia nitrogen）≤ 10 mg/L, and circulating cooling is worked as in special provision
When system is copper material heat exchanger, ρ in circulating cooling system water（Ammonia nitrogen）1 mg/L of ＜, and electrodialyzer water outlet is general all at present
This requirement is not reached, electrodialyzer water outlet not up to standard cooling water system is directly discharged into into such as, it is easy to which cooling system occurs
Corrosion phenomenon.When especially performing total nitrogen discharge standard by 2013, the higher wastewater treatment of total nitrogen content will become new ring
Protect a difficult problem.
It is reported that, in place of being come with some shortcomings due to electrodialysis process in itself, country improves pollution discharge standard again
Afterwards, only reaching pollution discharge standard with existing electrodialysis process has certain difficulty, will also enter one to country in 2016
Step improves discharge standard.
Chinese Patent Application No. 201310298728.2 discloses the side that a kind of Integrated Membrane Technology processes ammonium nitrate wastewater
Method, its method are as follows：In ammonium nitrate wastewater stock solution Jing after acid-base neutralization adjusts pH value technique and cooling technique to process, successively again via
The Integrated Membrane Technology of ultrafiltration membrane process, reverse osmosis membrane technique, degassing membrane process and electrodeionization membrane process composition is processed, respectively
To the concentration liquid of ammonium nitrate for being close to 10%, Jing evaporative crystallizations, ammonium nitrate solid product is reclaimed；In obtaining water simultaneously, ammonia nitrogen quality is dense
The desalted water of degree≤1mg/L, can reclaim as technique pure water or boiler feedwater.The present invention makes ammonium nitrate wastewater all obtain
Recycling.Integrated Membrane Technology of the present invention, technique are advanced；Energy saving；Administer waste water economic benefit of engineering good, but equipment
Many, investment is big.
Chinese Patent Application No. 201210099642.2 discloses a kind of Integrated Films and all reclaims inorganic ammonium salt waste water
Method and device, with inorganic ammonium salt waste water as raw water, successively via pretreating process, electrodialysis process and electrodeionization technique groups
Into integrated membranous system process.Ammonia nitrogen≤10mg/L in water outlet can be reached, the environmental protection standard of total nitrogen≤30mg/L is required.Jing should
Concentrated water after system process, its ammonia nitrogen mass concentration can be delivered to factory production system up to more than 10%, further evaporate dense
Contracting, crystallizes out ammonium salt, makes the ammonium salt all recovery in waste water；Light electrical conductivity of water can be mended as pure water or boiler close to zero
Feedwater reuse.So, without waste discharge, dense, fresh water all gets utilization whole system.But electrodialysis are except in presence
Drawback is stated, power consumption is higher.
Reverse osmosiss are the membrane separation techniques grown up in recent decades, in sea water and brackish water desalination, large-sized boiler
It is used widely in terms of make up water treatment, in terms of being also used for the separation and concentration of milk and fruit juice and biological and biochemical preparation,
And in terms of the preparation of drinking water and high purity water.Reverse osmosis technology is also applied in field of waste water treatment in recent years, but has
When people attempts for reverse osmosis technology being applied to ammonium nitrate wastewater process, it is found that reverse osmosis membrane is very high to the transmitance of ammonium nitrate.According to
Document is introduced, and reverse osmosis membrane is to NH4+The clearance of ion is 70～90%, to NO3—The clearance of ion is 50～75%.
That is reverse osmosis membrane is to NH4+The transmitance 10～30% of ion, to NO3—The transmitance of ion is 25～50%.This and reverse osmosiss
Film is compared for 99% to the clearance of NaCl, and this brings very big to the engineering that will realize all wastewater treatments of removing ammonium nitrate
It is difficult so that China does not have reverse osmosis applications so far in the precedent for processing ammonium nitrate wastewater.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of reverse osmosis membrane cone nitric acid ammonium waste water it is dense
Compression apparatus and method for concentration, the concentrated effect that high concentration ammonium nitrate wastewater is processed in solving prior art are bad, and filtering accuracy is low
The problems such as.
The purpose of the present invention is achieved through the following technical solutions：
A kind of enrichment facility of reverse osmosis membrane cone nitric acid ammonium waste water, including the low-lift pump, one-level low pressure reverse osmosis that are sequentially communicated
Film group, high-pressure pump, two grades of high pressure concentrated water reverse osmosis membrane groups and evaporation concentration device；The one-level low-pressure reverse osmosis membrane group includes
One membrane tube, the high rejection film core of first be arranged in the first membrane tube；Two grades of high pressure concentrated water reverse osmosis membrane group includes second
Membrane tube, the high rejection film core of second be arranged in the second membrane tube, two grades of high pressure concentrated water reverse osmosis membrane group are provided with backflow
Pipe, the return duct are connected with one-level low-pressure reverse osmosis membrane group, two grades of high pressure concentrated water reverse osmosis membrane groups respectively；The low-lift pump with
Pipeline between one-level low-pressure reverse osmosis membrane group is provided with the first valve, the high-pressure pump and two grades of high pressure concentrated water reverse osmosis membrane groups
Between pipeline be provided with the second valve；The enrichment facility also includes apparatus for recovering and control unit, the Water Sproading dress
Put and connect with one-level low-pressure reverse osmosis membrane group, described control unit is connected with the first valve, the second valve respectively.
Further, described control unit is PLC control unit.
Further, which also includes purging system, for cleaning one-level low-pressure reverse osmosis membrane group, two grades of high pressure concentrated water reverse osmosis
Permeable membrane group.
Further, the purging system is CIP purging systems.
Further, first pressure measurement apparatus, the first temperature measuring equipment are additionally provided with first membrane tube；Described
Second device for pressure measurement, second temperature measurement apparatus, the first pressure measurement apparatus, the first temperature are additionally provided with two membrane tubes
Measurement apparatus, Second device for pressure measurement, second temperature measurement apparatus are connected with control unit respectively.
The method for concentration of the enrichment facility of above-mentioned reverse osmosis membrane cone nitric acid ammonium waste water, comprises the following steps：
S1. ammonium nitrate wastewater is introduced into one-level low pressure reverse osmosis module, respectively obtains one-level permeate and one-level dope, by one-level
Permeate introduces apparatus for recovering, and one-level dope introduces two grades of high pressure concentrated water reverse osmosis membrane groups；
S2. bis- grades of high pressure concentrated water reverse osmosis membrane groups of one-level dope Jing are processed, and respectively obtain two grades of permeate and two grades of dopes, will
Two grades of permeate Jing return ducts introduce one-level low-pressure reverse osmosis membrane group reprocessing, and two grades of dopes introduce distillation and concentration device, evaporation
Crystallization, obtains ammonium nitrate crystals.
Further, the ammonium nitrate mass concentration of the one-level dope is 5-7%.
Further, the ammonium nitrate mass concentration of two grades of dopes is 12-18%.
Further, in the one-level permeate, ammonium nitrate concn is not more than 5mg/L.
The invention has the beneficial effects as follows：
（1）The present invention can make the system water outlet of ammonium nitrate wastewater using reverse osmosis membrane group（That is one-level permeate）In ammonia nitrogen quality
Concentration≤5mg/L, is close to the quality level of pure water, can fully recovering, saved water resource, realized zero-emission truly
Put, environmental benefit is good.
（2）The technical process of reverse osmosis membrane group of the present invention all carried out at normal temperatures, without phase transformation, therefore with produce phase transformation
Distillation and concentration method is compared, significantly reducing energy consumption, using reverse osmosis membrane PROCESS FOR TREATMENT ammonium nitrate wastewater and using electrodialysis skill
Art phase specific energy consumption also decreases.
（3）Operating cost of the present invention is low, and administering ammonium nitrate wastewater engineering has economic well-being of workers and staff, compared to electroosmose process or
Ion exchange is administered the operating cost of whole water treatment facilities of ammonium nitrate wastewater and is about 4.5 yuan/ton of water, and the present invention is processed
The operating cost section of whole water treatment facilities of ammonium nitrate wastewater is compared and saves 50%.
（4）Operating flexibility is big, when in charging, ammonium nitrate content changes in the range of 0.1% 1.5%, ion exchange resin
Cannot normal operating, and the present invention can run well.
（5）Small investment of the present invention, it is simple to operate, all automatically control, improve productive labor environment, realize cleaning text
Open-birth is produced；Ammonium nitrate in waste water is extracted into increase economic benefit simultaneously, saving water resource, non waste discharge, environmental benefit are good.
Description of the drawings
Fig. 1 is the structured flowchart of enrichment facility of the present invention；
Fig. 2 is the process chart that enrichment facility of the present invention processes ammonium nitrate wastewater；
In figure, 1 is low-lift pump, and 2 is one-level low-pressure reverse osmosis membrane group, and 3 is high-pressure pump, and 4 is two grades of high pressure concentrated water reverse osmosis membrane groups,
5 is evaporation concentration device, and 6 is return duct, and 7 is apparatus for recovering.
Specific embodiment
Technical scheme is described in further detail with reference to specific embodiment, but protection scope of the present invention is not
It is confined to described below.In the present invention, one-level low-pressure reverse osmosis membrane group, two grades of high pressure concentrated water reverse osmosis membrane groups are that Chinese patent is public
Film group described in the number of opening CN103041708 A.
As depicted in figs. 1 and 2, a kind of enrichment facility of reverse osmosis membrane cone nitric acid ammonium waste water, low including what is be sequentially communicated
Press pump, one-level low-pressure reverse osmosis membrane group, high-pressure pump, two grades of high pressure concentrated water reverse osmosis membrane groups and evaporation concentration device；The one-level
Low-pressure reverse osmosis membrane group includes the first membrane tube, the high rejection film core of first be arranged in the first membrane tube；Two grades of high-pressure thicks
Water reverse osmosis membrane group includes the second membrane tube, the high rejection film core of second be arranged in the second membrane tube, two grades of high pressure concentrated waters
Reverse osmosis membrane group is provided with return duct, the return duct respectively with one-level low-pressure reverse osmosis membrane group, two grades of high pressure concentrated water reverse osmosiss
Film group is connected；Pipeline between the low-lift pump and one-level low-pressure reverse osmosis membrane group is provided with the first valve, the high-pressure pump with
Pipeline between two grades of high pressure concentrated water reverse osmosis membrane groups is provided with the second valve；The enrichment facility also include apparatus for recovering and
Control unit, the apparatus for recovering are connected with one-level low-pressure reverse osmosis membrane group, described control unit respectively with the first valve,
Two valves connect.
Specifically, described control unit is PLC control unit.
Specifically, which also includes purging system, for cleaning one-level low-pressure reverse osmosis membrane group, two grades of high pressure concentrated water reverse osmosiss
Film group.
Specifically, the purging system is CIP purging systems.
Specifically, first pressure measurement apparatus, the first temperature measuring equipment are additionally provided with first membrane tube；Described second
Second device for pressure measurement, second temperature measurement apparatus are additionally provided with membrane tube, the first pressure measurement apparatus, the first temperature are surveyed
Amount device, Second device for pressure measurement, second temperature measurement apparatus are connected with control unit respectively.
Embodiment 1
The method for concentration of the enrichment facility of above-mentioned reverse osmosis membrane cone nitric acid ammonium waste water, comprises the following steps：
S1. the ammonium nitrate wastewater that ammonium nitrate mass concentration is 0.3% is introduced into one-level low pressure reverse osmosis module, respectively obtains nitric acid
Ammonium concentration is the one-level permeate and one-level dope that ammonium nitrate mass concentration is 6% of 4.8mg/L, and one-level permeate is introduced water
Retracting device, one-level dope introduce two grades of high pressure concentrated water reverse osmosis membrane groups；
S2. bis- grades of high pressure concentrated water reverse osmosis membrane groups of one-level dope Jing are processed, and respectively obtain two grades of permeate and ammonium nitrate quality is dense
Two grades of dopes for 18% are spent, two grades of permeate Jing return ducts are introduced into one-level low-pressure reverse osmosis membrane group reprocessing, two grades of dopes draw
Enter distillation and concentration device, evaporative crystallization obtains ammonium nitrate crystals.
Embodiment 2
The method for concentration of the enrichment facility of above-mentioned reverse osmosis membrane cone nitric acid ammonium waste water, comprises the following steps：
S1. the ammonium nitrate wastewater that ammonium nitrate mass concentration is 0.5% is introduced into one-level low pressure reverse osmosis module, respectively obtains nitric acid
Ammonium concentration is the one-level permeate and one-level dope that ammonium nitrate mass concentration is 5% of 4.9mg/L, and one-level permeate is introduced water
Retracting device, one-level dope introduce two grades of high pressure concentrated water reverse osmosis membrane groups；
S2. bis- grades of high pressure concentrated water reverse osmosis membrane groups of one-level dope Jing are processed, and respectively obtain two grades of permeate and ammonium nitrate quality is dense
Two grades of dopes for 12% are spent, two grades of permeate Jing return ducts are introduced into one-level low-pressure reverse osmosis membrane group reprocessing, two grades of dopes draw
Enter distillation and concentration device, evaporative crystallization obtains ammonium nitrate crystals.
Embodiment 3
The method for concentration of the enrichment facility of above-mentioned reverse osmosis membrane cone nitric acid ammonium waste water, comprises the following steps：
S1. the ammonium nitrate wastewater that ammonium nitrate mass concentration is 0.4% is introduced into one-level low pressure reverse osmosis module, respectively obtains nitric acid
Ammonium concentration is 7% one-level dope for the one-level permeate and ammonium nitrate mass concentration of 5mg/L, and one-level permeate is introduced Water Sproading
Device, one-level dope introduce two grades of high pressure concentrated water reverse osmosis membrane groups；
S2. bis- grades of high pressure concentrated water reverse osmosis membrane groups of one-level dope Jing are processed, and respectively obtain two grades of permeate and ammonium nitrate quality is dense
Spend for 16% 2 grade of dope, two grades of permeate Jing return ducts are introduced into one-level low-pressure reverse osmosis membrane groups reprocessing, two grades of dopes are introduced
Distillation and concentration device, evaporative crystallization obtain ammonium nitrate crystals.
Embodiment 4
The method for concentration of the enrichment facility of above-mentioned reverse osmosis membrane cone nitric acid ammonium waste water, comprises the following steps：
S1. the ammonium nitrate wastewater that ammonium nitrate mass concentration is 0.3% is introduced into one-level low pressure reverse osmosis module, respectively obtains nitric acid
Ammonium concentration is 6% one-level dope for the one-level permeate and ammonium nitrate mass concentration of 4.7mg/L, one-level permeate is introduced water and is returned
Receiving apparatus, one-level dope introduce two grades of high pressure concentrated water reverse osmosis membrane groups；
S2. bis- grades of high pressure concentrated water reverse osmosis membrane groups of one-level dope Jing are processed, and respectively obtain two grades of permeate and ammonium nitrate quality is dense
Spend for 18% 2 grade of dope, two grades of permeate Jing return ducts are introduced into one-level low-pressure reverse osmosis membrane groups reprocessing, two grades of dopes are introduced
Distillation and concentration device, evaporative crystallization obtain ammonium nitrate crystals.
The above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the exclusion to other embodiment, and can be used for various other combinations, modification and environment, and can be at this
In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered
Capable change and change, then all should be in the protection domains of claims of the present invention without departing from the spirit and scope of the present invention
It is interior.
Claims (9)
1. a kind of enrichment facility of reverse osmosis membrane cone nitric acid ammonium waste water, it is characterised in that including the low-lift pump being sequentially communicated, one
Level low-pressure reverse osmosis membrane group, high-pressure pump, two grades of high pressure concentrated water reverse osmosis membrane groups and evaporation concentration device；The one-level low pressure reverse osmosis
Permeable membrane group includes the first membrane tube, the high rejection film core of first be arranged in the first membrane tube；Two grades of high pressure concentrated water reverse osmosiss
Film group includes the second membrane tube, the high rejection film core of second be arranged in the second membrane tube, two grades of high pressure concentrated water reverse osmosis membrane
Group is provided with return duct, and the return duct is connected with one-level low-pressure reverse osmosis membrane group, two grades of high pressure concentrated water reverse osmosis membrane groups respectively；
Pipeline between the low-lift pump and one-level low-pressure reverse osmosis membrane group is provided with the first valve, the high-pressure pump and two grades of high-pressure thicks
Pipeline between water reverse osmosis membrane group is provided with the second valve；The enrichment facility also includes apparatus for recovering and control unit,
The apparatus for recovering is connected with one-level low-pressure reverse osmosis membrane group, and described control unit is connected with the first valve, the second valve respectively
Connect.
2. the enrichment facility of a kind of reverse osmosis membrane cone nitric acid ammonium waste water according to claim 1, it is characterised in that described
Control unit is PLC control unit.
3. the enrichment facility of a kind of reverse osmosis membrane cone nitric acid ammonium waste water according to claim 1, it is characterised in which is also
Including purging system, for cleaning one-level low-pressure reverse osmosis membrane group, two grades of high pressure concentrated water reverse osmosis membrane groups.
4. the enrichment facility of a kind of reverse osmosis membrane cone nitric acid ammonium waste water according to claim 3, it is characterised in that described
Purging system is CIP purging systems.
5. the enrichment facility of a kind of reverse osmosis membrane cone nitric acid ammonium waste water according to claim 1, it is characterised in that described
First pressure measurement apparatus, the first temperature measuring equipment are additionally provided with first membrane tube；The second pressure is additionally provided with second membrane tube
Force measuring device, second temperature measurement apparatus, the first pressure measurement apparatus, the first temperature measuring equipment, second pressure are surveyed
Amount device, second temperature measurement apparatus are connected with control unit respectively.
6. a kind of concentration side of the enrichment facility of the reverse osmosis membrane cone nitric acid ammonium waste water as described in claim 1-5 any one
Method, it is characterised in that comprise the following steps：
S1. ammonium nitrate wastewater is introduced into one-level low pressure reverse osmosis module, respectively obtains one-level permeate and one-level dope, by one-level
Permeate introduces apparatus for recovering, and one-level dope introduces two grades of high pressure concentrated water reverse osmosis membrane groups；
S2. bis- grades of high pressure concentrated water reverse osmosis membrane groups of one-level dope Jing are processed, and respectively obtain two grades of permeate and two grades of dopes, will
Two grades of permeate Jing return ducts introduce one-level low-pressure reverse osmosis membrane group reprocessing, and two grades of dopes introduce distillation and concentration device, evaporation
Crystallization, obtains ammonium nitrate crystals.
7. the method for concentration of the enrichment facility of a kind of reverse osmosis membrane cone nitric acid ammonium waste water according to claim 6, which is special
Levy and be, the ammonium nitrate mass concentration of the one-level dope is 5-7%.
8. the method for concentration of the enrichment facility of a kind of reverse osmosis membrane cone nitric acid ammonium waste water according to claim 6, which is special
Levy and be, the ammonium nitrate mass concentration of two grades of dopes is 12-18%.
9. the method for concentration of the enrichment facility of a kind of reverse osmosis membrane cone nitric acid ammonium waste water according to claim 6, which is special
Levy and be, ammonium nitrate concn is not more than 5mg/L in the one-level permeate.
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| CN108314240A (en) * | 2017-12-06 | 2018-07-24 | 绍兴齐英膜科技有限公司 | A kind for the treatment of process of iron oxide red mother liquor |
| CN109111010A (en) * | 2018-10-26 | 2019-01-01 | 陕西燎原净化设备有限公司 | A kind of brine waste processing system and its application method |
| CN109987762A (en) * | 2017-12-29 | 2019-07-09 | 甘李药业股份有限公司 | The method for handling the ammonia nitrogen waste water that evaporation urea generates in peptide production process |
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| CN114804485A (en) * | 2022-04-25 | 2022-07-29 | 厦门世达膜科技有限公司 | Ammonium nitrate-containing evaporation and condensation wastewater zero-emission treatment system |
| CN115521197A (en) * | 2022-10-28 | 2022-12-27 | 江苏扬农化工集团有限公司 | Method for concentrating 3-hydroxypropionaldehyde aqueous solution |
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| CN104291502A (en) * | 2013-07-17 | 2015-01-21 | 苏州华清水处理技术有限公司 | Device for treating ammonium nitrate wastewater by adoption of integrated membrane technology |
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| CN104291502A (en) * | 2013-07-17 | 2015-01-21 | 苏州华清水处理技术有限公司 | Device for treating ammonium nitrate wastewater by adoption of integrated membrane technology |
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| CN109987762A (en) * | 2017-12-29 | 2019-07-09 | 甘李药业股份有限公司 | The method for handling the ammonia nitrogen waste water that evaporation urea generates in peptide production process |
| CN108314225A (en) * | 2018-01-26 | 2018-07-24 | 浙江理工大学 | Improve the device and purification method of sewage stripping bottom of tower reuse purified water water quality |
| CN109111010A (en) * | 2018-10-26 | 2019-01-01 | 陕西燎原净化设备有限公司 | A kind of brine waste processing system and its application method |
| CN111213713A (en) * | 2019-10-23 | 2020-06-02 | 内蒙古蒙牛乳业（集团）股份有限公司 | Concentration equipment |
| CN114804485A (en) * | 2022-04-25 | 2022-07-29 | 厦门世达膜科技有限公司 | Ammonium nitrate-containing evaporation and condensation wastewater zero-emission treatment system |
| CN114656057A (en) * | 2022-05-06 | 2022-06-24 | 四川绿沃创新环保工程有限公司 | Livestock breeding manure sewage resource utilization and treatment method |
| CN115521197A (en) * | 2022-10-28 | 2022-12-27 | 江苏扬农化工集团有限公司 | Method for concentrating 3-hydroxypropionaldehyde aqueous solution |
| CN115521197B (en) * | 2022-10-28 | 2023-10-13 | 江苏扬农化工集团有限公司 | Concentration method of 3-hydroxy propanal aqueous solution |
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