CN106830549A - A kind of breeding wastewater resource concentration and retracting device and technique - Google Patents
A kind of breeding wastewater resource concentration and retracting device and technique Download PDFInfo
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- CN106830549A CN106830549A CN201710128023.4A CN201710128023A CN106830549A CN 106830549 A CN106830549 A CN 106830549A CN 201710128023 A CN201710128023 A CN 201710128023A CN 106830549 A CN106830549 A CN 106830549A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/447—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by membrane distillation
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention provides a kind of concentration of breeding wastewater resource and retracting device and technique.Described breeding wastewater resource concentration and retracting device, it is characterised in that including anaerobic reactor, filtering ponds, basicity regulating reservoir, preheating pond, condensation cycle groove and membrane component；The biogas slurry outlet connection filtering ponds of anaerobic reactor, the biogas slurry outlet connection basicity regulating reservoir of filtering ponds, the biogas slurry outlet connection preheating pond of basicity regulating reservoir, preheating pond connects the hot material liquid side of membrane component, the condensate liquid side connection condensation cycle groove of membrane component.The beneficial effects of the invention are as follows：1st, the biogas and biogas slurry obtained after the preliminary Anaerobic Treatment of breeding wastewater are made full use of, by membrane distillation technique of the invention, concentration biogas slurry, recovery water purification；2nd, the biogas by the use of anaerobism generation can on the spot realize the operation of this process system as the main energy sources of whole processing technology, reduce the energy consumption of system；3rd, the ammonia nitrogen element in concentrate can effectively be preserved.
Description
Technical field
The invention belongs to livestock-raising field of waste water treatment, be particularly suited for cultivating produced in processing procedure ammonia nitrogen high,
The anaerobic waste water fermentation preliminary treatment such as ammonia nitrogen and phosphorus containing high concentration is obtained natural pond by the treatment of high phosphorus organic wastewater, cultivation plant area
Gas and methane-generating pit water outlet, are concentrated and are reclaimed using process system of the invention to it, obtain the high concentration of 5-20 times of concentration
The organic liquid fertilizer of nitrogenous P elements, while reclaiming pure water, the present invention is capable of achieving resource and the reuse of waste water, reaches herding
" zero-emission " of breeding wastewater.
Background technology
Film distillation technology is a kind of novel process that Conventional espresso technique and membrane separation technique are blended, during Membrane Materials
The fluid of hot material liquid carburation by evaporation when hydrophobic membrane surface is flowed through, steam reaches condensation side by hydrophobic membrane film internal channel.The mistake
Non-volatile ion and molecule can not then be trapped through hydrophobic membrane in Cheng Zhongshui phases, so as to reach solution separate, concentration or
The purpose of purification.Membrane Materials are accompanied by the process of multiple phase transformation, hot material liquid and hydrone evaporation vapour in the boundary layer of hydrophobic membrane
Change, complete liquid to gaseous first time inversion of phases, film is by reaching condensation side fluid or low negative to the cold behind hydrophobic membrane duct
Pressure ring border condenses, and completes second inversion of phases of gaseous state phase liquid, and the motive force of mass transfer passes through component for hydrophobic membrane both sides
Vapor partial pressure it is poor.Compare distillation and conventional pressure driving membrane process, and the advantage of Membrane Materials mainly has：(1) to liquid to be treated
The Nonvolatile solute such as ion, macromolecular can reach intimate 100% rejection effect；(2) operation temperature evaporates low than steaming (essence),
Energy consumption will steam (essence) and evaporate much smaller than tradition；(3) operating pressure is far below counter-infiltration, also significantly lower than the UF membrane mistake such as nanofiltration ultrafiltration
Journey.Along with the progress of hydrophobic membrane material and membrane distillation technique, with reference to the own characteristic of membrane distillation technique, the technology increasingly manifests
Go out its application potential in terms of water treatment field especially high enrichment and water purification reuse.
The weak point of existing membrane distillation technique is in energy consumption and not good enough two masters of rejection effect to volatility solute
Will aspect：Need to heat liquid to be treated in membrane distillation technique, occupy the overwhelming majority of energy consumption in membrane distillation technique；It is right
Not good enough in the rejection effect of volatile solutes, such as ammonia can be together evaporate into up to condensation side during Membrane Materials with steam, right
The concentration technology of the reservation component is needed, the conventional film way of distillation also fails to make up this defect.
Treatment to waste water in livestock breeding industry, the methane-generating pit water outlet after traditional anaerobic fermentation, water quality is extremely difficult to discharge
Standard, is also a kind of waste to nutrients such as the nitrogen P elements that are rich in waste water while in discharge process.Review dense with Membrane Materials method
Contracting and reuse livestock-raising waste water, itself has inherent advantage, meeting in one side livestock-raising anaerobic waste water fermentation treatments
Larger amount of biogas is produced, can be originated as the energy of Membrane Materials system；The nitrogen P elements being rich in another aspect waste water pass through
Effective condensing mode, can obtain the organic liquid fertilizer of nutrient high, while recovery section water purification.
Rejection effect for energy consumption in membrane distillation technique and volatile materials ammonia is not good, develops suitable special water,
Such as livestock-raising waste water, while there is weight through the membrane distillation technique that effective pretreatment measure can efficiently retain ammonia nitrogen nutrient in waste water
Big practical significance and application potential.
The content of the invention
The characteristics of comprehensive livestock-raising waste water pre-treatment, the purpose of the present invention is effectively to be detested using livestock-raising waste water early stage
The biogas produced in oxygen processing procedure is supplied as the energy of membrane distillation technique, while retaining biogas slurry by effective processing mode
The nutrient of the elements such as middle nitrogen phosphorus, is condensed into liquid fertilizer, reaches the recycling of livestock-raising waste water, realizes breeding wastewater
" zero-emission ".
In order to achieve the above object, present invention employs following technical scheme：
A kind of breeding wastewater resource concentration and retracting device, it is characterised in that including anaerobic reactor, filtering ponds, alkali
Degree regulating reservoir, preheating pond, condensation cycle groove and membrane component；The biogas slurry outlet connection filtering ponds of anaerobic reactor, filtering
The biogas slurry outlet connection basicity regulating reservoir in pond, the biogas slurry outlet connection preheating pond of basicity regulating reservoir, preheating pond junctional membrane steams
Evaporate the hot material liquid side of component, the condensate liquid side connection condensation cycle groove of membrane component.
Preferably, it is divided into biogas heating zone, heat tracing zone and hot material liquid zone, natural pond in described preheating pond from top to bottom
The biogas heater set in gas heating zone connects the methane outlet of anaerobic reactor, biogas slurry outlet and the heating of basicity regulating reservoir
Heat preservation zone connects, and hot material liquid zone connects the entrance of the hot material liquid side of membrane component via temperature controller and first circulation pump,
The outlet connection hot material liquid zone of the hot material liquid side of membrane component；Described condensation cycle groove steams via second circulation pump junctional membrane
Evaporate the entrance of the condensate liquid side of component, the outlet connection condensation cycle groove of the condensate liquid side of membrane component.
Preferably, described filtering ponds set grid or screen pack, remove the suspended particulate substance in biogas slurry.
Preferably, described filtering ponds bottom sets waste residue pond Pai Kou.
Preferably, the first regulating valve, basicity regulating reservoir are set on the pipeline between described filtering ponds and basicity regulating reservoir
The second regulating valve is set with the pipeline between preheating pond, the pipeline between described anaerobic reactor and filtering ponds is provided with
Feeding engine.
Preferably, agitator is provided with described basicity regulating reservoir.
Preferably, described preheating pond is provided with concentrate row's mouth.
Preferably, described condensation cycle groove is provided with overfall.
Preferably, the outlet of described hot material liquid side and the entrance of condensate liquid side are located at the upper end of membrane component, hot material
The outlet of the entrance and condensate liquid side of liquid side is positioned at the lower end of membrane component.
Present invention also offers a kind of concentration of breeding wastewater resource and recovery process, it is characterised in that using above-mentioned
Breeding wastewater resource is concentrated and retracting device, including：Biogas slurry after being processed through anaerobic reactor is by after filter, entering
Basicity regulating reservoir carries out basicity regulation, and the water outlet of basicity regulating reservoir is by the preheating pond using the biogas of anaerobic reactor as thermal source
Heated, the biogas slurry after preheating is conveyed into the hot material liquid side of membrane component and carries out Membrane Materials treatment, what hot material liquid side produced
Steam reaches the condensate liquid side of membrane component by the hydrophobic membrane in membrane component, and condensate liquid side is using water as condensation
Liquid, output water purification.
Preferably, the heating and temperature control of described pre-add hot-zone is at 40-70 DEG C.
Preferably, described membrane component uses direct contact membrane distillation.
Preferably, described basicity regulation uses hydrochloric acid, sulphate reagent or nitron.
Preferably, pH is between 4-6 after described basicity regulation.
By taking above-mentioned technical proposal, the invention has the advantages that：
After livestock-raising waste water is through Anaerobic Treatment, nutrient concentration and water purification reuse can be carried out using this technology technique on the spot；
Biogas can improve the utilization ratio of biogas and reduce the cost of storage transport as the main heating source of membrane distillation technique；Basicity is adjusted
The setting in pond is adjusted with basicity, can effectively alleviate loss of the ammonia nitrogen class Containing more Volatile Solute during Membrane Materials, and this technique can have
Effect retains in biogas slurry waste water more than 90% ammonia nitrogen；The mark of liquid fertilizer can be directly reached through the concentrate part after PROCESS FOR TREATMENT
Standard, realizes that resource makes full use of, while reclaiming water purification, reuse is into producing and live.
Ammonia nitrogen high, the concentration of high phosphorus liquid and water purification reuse in the achievable breeding wastewater of the present invention.The invention solves the problems that cultivation
The nutrient density of waste water is low, preserves inconvenient, the low problem of water resource utilization efficiency." the zero of the achievable breeding wastewater of the present invention
Discharge ", its outstanding feature has：1st, the biogas and biogas slurry obtained after the preliminary Anaerobic Treatment of breeding wastewater are made full use of, by this hair
Bright membrane distillation technique, concentration biogas slurry, recovery water purification；2nd, in the present invention using the biogas of anaerobism generation as whole processing technology
Main energy sources, can on the spot realize the operation of this process system, reduce the energy consumption of system；3rd, this technique can effectively preserve dense
Ammonia nitrogen element in contracting liquid, it is to avoid ammonia nitrogen caused by high volatility because being lost in conventional method processing procedure.The present invention is one
The semi-independent recycling treatment process that aquaculture produces chain end waste pollutant is planted, can really realize turning waste into wealth.
Brief description of the drawings
Fig. 1 is the concentration of breeding wastewater resource and retracting device schematic diagram.
In figure：I, biogas supply air line；II, evaporation tubes loop；III, condensation pipe loop.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment
As shown in figure 1, breeding wastewater resource concentration of the invention and retracting device, including anaerobic reactor 1, filtering ponds
2nd, basicity regulating reservoir 3, preheating pond 4, condensation cycle groove 5 and membrane component 6.
There is anaerobic reactor 1 biogas slurry to export and methane outlet, and biogas slurry outlet is directly connected to filtering ponds 2, and biogas 1-1 is through natural pond
Gas supply air line I is introduced directly into the biogas heater in preheating pond 4, and biogas slurry 1-2 is preheated.
Filtering ponds 2 set grid or screen pack 2-2, and fine particle or suspension are intercepted, and reduce follow-up film process
During pollution, extend Membrane Materials process use time.The biogas slurry outlet connection basicity regulating reservoir 3 of filtering ponds 2, filters out
Water carries out pH regulations into basicity regulating reservoir 3.The described bottom of filtering ponds 2 sets waste residue pond and arranges mouth 2-3.
The biogas slurry of the tentatively filtering of basicity regulating reservoir 3 pairs carries out basicity regulation；Basicity regulating reservoir 3 is to retain ammonia nitrogen in the present invention
The committed step of element.Using hydrochloric acid, sulphate reagent or nitron, pH is accurate in regulation process system for the basicity regulation of biogas slurry
Between 4-6.Basicity regulating reservoir 3 sets agitator 3-2, it is ensured that the mixing of regulation liquid is abundant.
The biogas slurry outlet connection preheating pond 4 of basicity regulating reservoir 3, preheating is divided into biogas heating zone from top to bottom in pond 4
4-1, heat tracing zone 4-2 and hot material liquid zone 4-3, the biogas heater connection anaerobic reactor 1 set in the 4-1 of biogas heating zone
Methane outlet, basicity regulating reservoir 3 biogas slurry outlet be connected with heat tracing zone 4-2.Preheating pond 4 is entered for basicity regulating reservoir 3
The integral type storage tank of the biogas slurry of regulation biogas slurry and membrane component 6 backflow for entering.
Preheating pond 4 connects the hot material liquid side 6-1 of membrane component 6, and the condensate liquid side 6-2 connections of membrane component 6 are cold
Solidifying circulating slot 5.The heating-up temperature of pre-add hot-zone 4 is accurately controlled in 40-70 DEG C by preheating pond 4 and temperature controller 9.Preheating
Pond 4 is provided with concentrate row's mouth 4-4.
Hot material liquid zone 4-3 is via the hot material liquid side 6-1's of temperature controller 9 and the connection membrane component 6 of first circulation pump 7
The outlet 6-a connection hot material liquid zone 4-3 of entrance 6-b, the hot material liquid side 6-1 of membrane component 6, constitute evaporation tubes loop II.
Condensation cycle groove 5 connects the entrance 6-c of the condensate liquid side 6-2 of membrane component 6 via second circulation pump 8, membrane component 6
The outlet 6-d connection condensation cycles groove 5 of condensate liquid side 6-2, constitutes condensation pipe loop III.In practice, Membrane Materials of the invention
Component 6 is not limited to single-stage membrane component and its supporting multistage evaporation, condenser pipe shown in Fig. 1 etc..
Membrane component 6 is made up of hydrophobic membrane and component, using direct contact membrane distillation, the side direct contact heat of film
Feed liquid, opposite side directly contact condensate liquid.Mass transport process is mainly (1) processed hot material liquid main body and flows through hydrophobic membrane surface,
Contacted with hydrophobic membrane boundary layer；(2) hot material liquid is vaporized in the border bed boundary of hydrophobic membrane, completes liquid to gaseous inversion of phases；
(3) steam of vaporization is spread by hydrophobic membrane inner duct to condensate liquid side；(4) vapours is by fenestra and condensate liquid directly contact
And condense, inversion of phases of the gaseous state to liquid is completed again.
The entrance 6-c of the outlet 6-a and condensate liquid side 6-2 of hot material liquid side 6-1 is located at the upper end of membrane component 6, hot material
The outlet 6-d of the entrance 6-b and condensate liquid side 6-2 of liquid side 6-1 is located at the lower end of membrane component 6.On hot material liquid enters under using
The way of supplying water for going out, it is ensured that the evaporation time of hot material liquid, condensate liquid uses the way of supplying water of upper entering and lower leaving, in relatively low condensation flow
Drop phenomenon is can result in operation, certain local decompression is formed, evaporation capacity is improved, the effect for putting forward high yield water is reached.
Condensation cycle groove 5 sets overfall 5-2, it is ensured that water is constant in condensation cycle groove 5, and the water outlet of overfall 5-2 is
Reuse water purification, the water outlet of overfall 5-2 can connect production, domestic water pipeline, can also be collected using storage tank.
First regulating valve 2-4, basicity regulating reservoir 3 and preheating are set on the pipeline between filtering ponds 2 and basicity regulating reservoir 3
Second regulating valve 3-3 is set on the pipeline between pond 4, and the pipeline between described anaerobic reactor 1 and filtering ponds 2 is provided with and send
Material pump 10.
A kind of breeding wastewater resource concentration and recovery process, using above-mentioned breeding wastewater resource concentration and recovery dress
Put, including：Biogas slurry 1- after anaerobic reactor carries out anaerobism preliminary treatment, pass through by the biogas slurry after being processed through anaerobic reactor 1
After filter tank 2 is filtered, basicity regulation is carried out into basicity regulating reservoir 3, the water outlet of basicity regulating reservoir 3 is by with the natural pond of anaerobic reactor 1
Gas is heated as the preheating pond 4 of thermal source, and the hot material liquid side 6-1 that the biogas slurry after preheating is conveyed into membrane component 6 is carried out
Membrane Materials treatment, the steam that hot material liquid side 6-1 is produced reaches membrane component 6 by the hydrophobic membrane in membrane component 6
Condensate liquid side 6-2, condensate liquid side 6-2 are using normal temperature circulation running water as condensate liquid, output water purification, after membrane distillation concentration
The solution of nitrogen P elements high is discharged by concentrate row's mouth 4-4.
The membrane distillation technique can realize that the concentration rate of ammonia nitrogen element reaches 5-20 times by continuous operation, produce water
Reclamation rate can reach the 30%-50% into water inventory.
Table 1 show partial test data of certain Pig raising wastewater water sample by this PROCESS FOR TREATMENT：
The herding waste water reclaiming water sample of table 1 is tested
Above-described embodiment is the specific descriptions carried out to the present invention, and simply the present invention is further described, it is impossible to managed
It is limiting the scope of the present invention to solve, and it is nonessential that those skilled in the art makes some according to the content of foregoing invention
Modifications and adaptations are each fallen within protection scope of the present invention.
Claims (10)
1. a kind of breeding wastewater resource is concentrated and retracting device, it is characterised in that including anaerobic reactor (1), filtering ponds
(2), basicity regulating reservoir (3), preheating pond (4), condensation cycle groove (5) and membrane component (6)；The natural pond of anaerobic reactor (1)
Liquid outlet connection filtering ponds (2), biogas slurry outlet connection basicity regulating reservoir (3) of filtering ponds (2), the biogas slurry of basicity regulating reservoir (3)
Outlet connection preheating pond (4), the hot material liquid side (6-1) of preheating pond (4) connection membrane component (6), membrane component (6)
Condensate liquid side (6-2) connect condensation cycle groove (5).
2. breeding wastewater resource as claimed in claim 1 is concentrated and retracting device, it is characterised in that described preheating pond
(4) it is divided into biogas heating zone (4-1), heat tracing zone (4-2) and hot material liquid zone (4-3), biogas heating zone (4- in from top to bottom
1) methane outlet of biogas heater connection anaerobic reactor (1) set in, biogas slurry outlet and the heating of basicity regulating reservoir (3)
Heat preservation zone (4-2) connects, and hot material liquid zone (4-3) is via temperature controller (9) and first circulation pump (7) connection membrane component
(6) entrance (6-b) of hot material liquid side (6-1), outlet (6-a) the connection hot material of the hot material liquid side (6-1) of membrane component (6)
Liquid zone (4-3)；Described condensation cycle groove (5) connects the condensate liquid side (6- of membrane component (6) via second circulation pump (8)
2) entrance (6-c), the outlet (6-d) of the condensate liquid side (6-2) of membrane component (6) connects condensation cycle groove (5).
3. breeding wastewater resource as claimed in claim 1 is concentrated and retracting device, it is characterised in that described filtering ponds
(2) the first regulating valve (2-4), basicity regulating reservoir (3) and preheating pond (4) are set on the pipeline and between basicity regulating reservoir (3)
Between pipeline on the second regulating valve (3-3) is set, set on the pipeline between described anaerobic reactor (1) and filtering ponds (2)
There is feeding engine (10).
4. breeding wastewater resource as claimed in claim 1 is concentrated and retracting device, it is characterised in that described condensation cycle
Groove (5) is provided with overfall (5-2).
5. breeding wastewater resource as claimed in claim 1 is concentrated and retracting device, it is characterised in that described hot material liquid side
The outlet (6-a) of (6-1) and the entrance (6-c) of condensate liquid side (6-2) are located at the upper end of membrane component (6), hot material liquid side (6-
1) outlet (6-d) of entrance (6-b) and condensate liquid side (6-2) is located at the lower end of membrane component (6).
6. a kind of breeding wastewater resource is concentrated and recovery process, it is characterised in that using any one of claim 1-5
Breeding wastewater resource concentration and retracting device, including：Biogas slurry after being processed through anaerobic reactor (1) is through filtering ponds (2) mistake
After filter, basicity regulation is carried out into basicity regulating reservoir (3), (3) water outlet of basicity regulating reservoir is by with the biogas of anaerobic reactor (1)
Heated as the preheating pond (4) of thermal source, the biogas slurry after preheating conveys the hot material liquid side (6-1) into membrane component (6)
Membrane Materials treatment is carried out, the steam that hot material liquid side (6-1) produces reaches Membrane Materials by the hydrophobic membrane in membrane component (6)
The condensate liquid side (6-2) of component (6), condensate liquid side (6-2) is using water as condensate liquid, output water purification.
7. breeding wastewater resource as claimed in claim 6 is concentrated and recovery process, it is characterised in that described pre-add hot-zone
(4) heating and temperature control is at 40-70 DEG C.
8. breeding wastewater resource as claimed in claim 6 is concentrated and recovery process, it is characterised in that described Membrane Materials group
Part (6) uses direct contact membrane distillation.
9. breeding wastewater resource as claimed in claim 6 is concentrated and recovery process, it is characterised in that described basicity regulation
Use hydrochloric acid, sulphate reagent or nitron.
10. breeding wastewater resource as claimed in claim 6 is concentrated and recovery process, it is characterised in that described basicity is adjusted
PH is between 4-6 after section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710128023.4A CN106830549A (en) | 2017-03-06 | 2017-03-06 | A kind of breeding wastewater resource concentration and retracting device and technique |
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| CN201710128023.4A CN106830549A (en) | 2017-03-06 | 2017-03-06 | A kind of breeding wastewater resource concentration and retracting device and technique |
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| CN201710128023.4A Pending CN106830549A (en) | 2017-03-06 | 2017-03-06 | A kind of breeding wastewater resource concentration and retracting device and technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109942043A (en) * | 2019-04-26 | 2019-06-28 | 中创水务科技环保(广东)有限公司 | A kind of percolate treating process and device |
| CN111302518A (en) * | 2020-03-20 | 2020-06-19 | 山东科技大学 | Method for recycling culture wastewater containing antibiotics by combining temperature difference concentration difference dual-driven membrane distillation and high-performance adsorbent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109942043A (en) * | 2019-04-26 | 2019-06-28 | 中创水务科技环保(广东)有限公司 | A kind of percolate treating process and device |
| CN109942043B (en) * | 2019-04-26 | 2023-09-19 | 中创水务科技环保(广东)有限公司 | Percolate treatment process and device |
| CN111302518A (en) * | 2020-03-20 | 2020-06-19 | 山东科技大学 | Method for recycling culture wastewater containing antibiotics by combining temperature difference concentration difference dual-driven membrane distillation and high-performance adsorbent |
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