CN110156254A - A kind of autoclave condensation water processing reuse method again - Google Patents
A kind of autoclave condensation water processing reuse method again Download PDFInfo
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- 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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- 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
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
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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
- C02F2101/105—Phosphorus compounds
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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
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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
- C02F2101/30—Organic compounds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/12—Nature of the water, waste water, sewage or sludge to be treated from the silicate or ceramic industries, e.g. waste waters from cement or glass factories
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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
- C02F2303/04—Disinfection
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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
- C02F3/30—Aerobic and anaerobic processes
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- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The embodiment of the invention discloses a kind of processing of autoclave condensation water, reuse method, the method successively include: acid-base accommodation, demulsification/absorption, anaerobe decomposition, efficient biochemical reaction, coagulating sedimentation, active zeolite processing, micro-filtration and hybrid ionic exchange again.This method carries out the research of series of processes feasibility Experiment according to fibre cement plate, the actually detected index of fiber reinforced calcium silicate board production line autoclave condensation water, for harmful components index, determines most scientific stable process flow.Treated autoclave condensation water, water outlet result reach " Industrial Boiler water standard " (GB/T1576-2008) as defined in boiler feed water, realize the target that autoclave condensation water is back to use to boiler.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of autoclave condensation water processing reuse method again.
Background technique
Architectural decoration fiber reinforced calcium silicate board and cement board production line are required to just make by steam pressure technique
Final products reach certain intensity and toughness, are just able to satisfy the technic index requirement of actual use.Traditional calcium silicate board row
Industry autoclave condensation water is due to being not concerned with Harmful ingredient content, it is generally recognized that the harmful components for being not above environmental requirement refer to
Mark, generally without handling, and direct emission.
Actual conditions are, through detecting fiber reinforcement silico-calcium board assembly line condensed water water quality, CODcrUp to 2900mg/L or so,
BOD5Up to 1200mg/L or so is more than seriously national requirements for environmental protection CODcrDischarge standard less than 100mg/L；Condensed water pH value
Average out to 13.5, water quality are in compared with strong basicity；Fat content >=50mg/L in condensed water is much higher than national emission standard 15mg/L；
It is in cloudy state and containing objectionable impurities such as a large amount of inorganic salts in water.
With the promotion that country requires sewage drainage standard, the reinforcement of the illegal hitting dynamics of environmental pollution, the sector
Sewage discharge severe overweight problem has become all Business survivals of industry and seriously threatens with what is developed.In addition country will belong to originally
It is changed to pollution tax (being imposed by land tax) in the fee of sewage discharge that environmental protection is imposed, while country imposes water resources taxes pilot and has been expanded to
Northern nine provinces, part province emphasis impose amount with water enterprise and industry water resources taxes and are up to 17 yuan/ton (information source is new
Hear report), pilot will execute after the completion in the whole nation.This trend will cause enterprise water use cost and blowdown cost substantially
It is soaring, it will be significantly increased in building material cement product industry water cost pressure with keen competition.
To sum up, autoclave condensation water processing (reaching national standard discharge standard to sewage treatment) and reuse have been to carve not
Rong Huan.
Currently, some enterprises take the aquatic production reuse of partial condensation to reduce discharge amount, the program is also only to treat the symptoms not
It effects a permanent cure, adjusts production system recirculated water index by increasing supply water in cyclic process, production system water recycles surplus also
It is to want direct emission.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of autoclave condensation water processing reuse method again.This method is according to fine
Tie up cement board, the actually detected index of fiber reinforced calcium silicate board production line autoclave condensation water (chooses the sector sewage highest
Index is process object), the research of series of processes feasibility Experiment is carried out for harmful components index, determines most scientific stable work
Skill process.The results show that treated by the method for the invention autoclave condensation water, water outlet result reaches as defined in boiler feed water
" Industrial Boiler water standard " (GB/T1576-2008), realizes the target that autoclave condensation water is back to use to boiler.
To achieve the above object, the embodiment of the present invention provides a kind of autoclave condensation water processing reuse method again, the side
Method successively includes following process steps: acid-base accommodation, demulsification/absorption, anaerobe is decomposed, efficient biochemical reacts, coagulation is heavy
It forms sediment, active zeolite is handled, micro-filtration and hybrid ionic exchange.
The process program is according to technologically advanced, operating cost is low, stability is high, treatment process modularization, integration of equipments
And the principle of intelligent control is designed.
Further, the acid-base accommodation step includes: to be adjusted pH value by adding acid-base modifier into condensed water
To neutrality.The pH value of usual condensed water is 13.5 or so, such as 13-13.5, and by the way that acid-base modifier is added, pH value adjusting is arrived
7 or so, such as 7-8.The step can carry out in such as acid-base accommodation pond, and the acid-base modifier can be to use in water process
In the common regulator, such as inorganic acid, such as hydrochloric acid, sulfuric acid etc. that adjust pH.
Further, the demulsification step include: reverse demulsifier 0.9-1.2ml/L is added into condensed water, such as
1ml/L overflows petroleum components from condensed water by stirring.
Reverse-phase emulsifier can effectively improve the interfacial tension of Water-In-Oil (W/O) or oil-in-water (O/W) lotion, make in sewage
Colloidal solid lose stable repulsive force and attraction, final loss of stability and form wadding body, further pass through chemistry
Bridging is finally completed the separation to water-oil separating and objectionable impurities in sewage, reaches recycling oil product, makes to purify the sewage
Purpose, to meet requirement of the subsequent processing process to water quality or reach country to the emission request of sewage.
By the one before step, so that reaching the condition for adding reverse-phase emulsifier, i.e., so that condensed water pH value reaches 7-8.Institute
Stating reverse-phase emulsifier is the common reverse-phase emulsifier for being currently used for sewage treatment, such as reverse-phase emulsifier OWT103/B-1.
Further, the adsorption step includes: by adsorbing the petroleum components overflowed in sub- adsorption condensing water.Pass through suction
Monkshood adsorbs the petroleum components overflowed in demulsification step, can reduce the influence to subsequent biochemical system.Absorption
MPA inorganic adsorbent can be used for example, which is a kind of nano inorganic adsorbent material, has oil absorption, can be used for
Over seat anker oil leak absorption, adsorption capacity reaches 4-7 times of particle self weight, and will not bleed back.
Further, absorption is packed using non-woven fabrics, is convenient for changing；And it can be used as boiler oil after adsorption saturation
It burns, carries out harmless treatment.
Above-mentioned demulsification step and adsorption step can with and usually synchronous carries out or alternately, will be overflowed from condensed water
Petroleum components adsorb removing at any time, and after removing the petroleum components overflowed, be conducive to the spilling of residual petroleum ingredient.Two steps
Suddenly it mutually promotes.
Further, the anaerobe decomposition step includes: and decomposes in condensed water to include by anaerobe
The organic matter of COD, BOD generate the gas including carbon dioxide and/or methane.For example, passing through anaerobe decomposing organic matter
Reaction equation it is as follows:
CH3COOH→CH4↑+CO2↑,
The step can carry out in such as anaerobe filter tank, pass through control inflow, quantity of circulating water, water inlet pH value
And the parameters such as reaction temperature, reach optimal operating condition.In one embodiment, hydraulic detention time: 20h is designed；Volume
Load: 2.52kgCOD/m3。
Further, the efficient biochemical reaction step includes: to decompose condensation by anoxic, aerobic and ammonia oxidation microbiological
Include the pollutant of COD, BOD, ammonia nitrogen compound in water, generates the gas including nitrogen dioxide and/or nitrogen, and complete muddy water
Separation and sterilizing.
In one embodiment, the efficient biochemical reaction step is completed by Bee-Box biochemical reactor.
Bee-Box biochemical reactor designs hydraulic detention time by parameters such as monitoring dissolved oxygen, temperature: for 24 hours, air demand 0.4m3/
Min, aerobic tank sludge concentration: 3g/L, sludge loading: 0.34kgBOD/kgMLSSd.
Further, the coagulating sedimentation step includes: that coagulant and flocculation aid are added into condensed water, carrys out adsorption condensing
Suspended particulate in water reduces turbidity and suspended matter.
In one embodiment, the coagulant is aluminium polychloride (PAC), and the flocculation aid is polyacrylamide
(PAM)。
Further, the coagulating sedimentation step includes:
(1) coagulant is added into condensed water, 10~20ppm of dosage mixes 15~20min by high-speed mixer,
Generate tiny alumen ustum；
(2) flocculation aid is added, 2~5ppm of dosage mixes 15~20min by low-speed mixer, generates larger alumen ustum；
(3) enter settling zone, complete mud-water separation.
Further, the active zeolite processing step includes: to reduce condensed water by the filtration of active zeolite
Turbidity, coloration and peculiar smell, and ionic species are removed by absorption exchange interaction.The ionic species include such as ammonia nitrogen ion,
Phosphate anion.The step can carry out in such as active zeolite filter tank.
In one embodiment, filter tank uses the bottom-up flowing of gravity, upflow velocity 13mm/min, filtrate filling height
1.2 meters of degree.
Further, the microfiltration step include: using melt-blown filter filtering condensed water in suspended matter, colloidal substance and
Small particle impurity.Prevent above-mentioned filtrate from entering mixed ion exchanger by the step.The melt-blown filter is using nothing
The tasteless polypropylene particles of poison by heating melting, spinneret, traction, receive to shape and manufactured tubulose filter core.
In one embodiment, the filtering accuracy grade of the melt-blown filter be 5 μ s, and it is high-efficient, resistance is small, just
In replacement.
Further, the hybrid ionic exchange step includes: by equipped with hydrogen type cation exchange resin and hydrogen-oxygen type
The mixed ion exchanger of anion exchange resin come remove cation and anion.Wherein, hydrogen type cation exchange resin is used
Cation in removing water；Hydrogen-oxygen type anion exchange resin is used to remove the anion in water.
In one embodiment, 1.0 meters of the mixed ion exchanger diameter, 5.5 meters of height；Resin cation filling
Highly 0.9 meter, 1.8 meters of resin anion (R.A.) packed height；Pass through acid, alkali on-line regeneration after exchange saturation.
The technical solution of the embodiment of the present invention has the advantages that
1, system solves fibre cement plate, fiber reinforced calcium silicate board production line autoclave condensation water at home for the first time
Sewage treatment problem, water quality that treated reach boiler reuse water quality requirement again, have to the sector Green Development and energy-saving and emission-reduction
Important meaning.
2, the technology realizes low cost to autoclave condensation water improvement, modularization, high stability, automation (exempt to be worth
Keep), the intelligent operation that can monitor on-line.
3, integrated treatment cost just corresponds to tap water cost about 50%, it is contemplated that the factors such as effluent charge, water resources taxes, it should
It is to increase cost to enterprise, but can create benefit to enterprise that patented technology, which realizes environmental protection facility no longer, in competing
Strive the fibre cement plate of industry, the sound development important in inhibiting of fiber reinforced calcium silicate board production industry.
4, there is interval according to fibre cement plate, fiber reinforced calcium silicate board production line autoclave condensation water sewage discharge
Property the characteristics of, it is desirable that treatment process impact resistance is strong, the comprehensive processing technique have in unit time thump stablize
The characteristics of operation, is fully able to meet technique requirement.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Fig. 1 is the flow diagram that autoclave condensation water provided in an embodiment of the present invention handles again reuse method.
Wherein appended drawing reference are as follows:
1, acid-base accommodation；2, demulsification/absorption；3, anaerobe is decomposed；4, efficient biochemical reacts；5, coagulating sedimentation；6,
Active zeolite processing；7, micro-filtration；8, hybrid ionic exchanges；9, recycle-water.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figure 1, it is shown that autoclave condensation water handles again the process of reuse method in one embodiment of the invention
Schematic diagram.Wherein, the condensed water from still kettle is successively by following processing: acid-base accommodation 1, demulsification/absorption 2, the micro- life of anaerobism
Object decomposes 3, efficient biochemical reaction 4, coagulating sedimentation 5, active zeolite processing 6, micro-filtration 7 and hybrid ionic exchange 8, is finally reached
To the recycle-water 9 of " Industrial Boiler water standard " (GB/T1576-2008) as defined in boiler feed water, realizes and condense still kettle
Water is back to use the target of boiler.
Embodiment 2
Reuse method comprises the following specific steps that again for the autoclave condensation water processing of the embodiment:
(1) by adding hydrochloric acid into autoclave condensation water, pH value is adjusted to 7 or so from 13.5, that is, is adjusted to neutrality,
This step carries out in acid-base accommodation pond；
(2) reverse demulsifier OWT103/B-1, dosage 1ml/L are added into condensed water, by stirring, make petroleum components
It is overflowed from condensed water；Meanwhile the petroleum components overflowed in the sub- adsorption condensing water of MPA inorganic adsorbent packed by non-woven fabrics；
Subsequent absorption using after adsorption saturation is burned as boiler oil, carries out harmless treatment；
(3) by anaerobe decompose condensed water in include COD, BOD organic matter, generate include carbon dioxide and/
Or the gas of methane；It is carried out in this step anaerobe filter tank, designs hydraulic detention time: 20h；Volumetric loading:
2.52kg·COD/m3；
(4) dirt in condensed water including COD, BOD, ammonia nitrogen compound is decomposed by anoxic, aerobic and ammonia oxidation microbiological
Object is contaminated, generates the gas including nitrogen dioxide and/or nitrogen, and complete mud-water separation and sterilizing；The step passes through Bee-
Box biochemical reactor is completed, and hydraulic detention time is designed: for 24 hours, air demand 0.4m3/ min, aerobic tank sludge concentration: 3g/L,
Sludge loading: 0.34kgBOD/kgMLSSd；
(5) coagulant polymeric aluminium chloride (PAC) is added into condensed water, 10~20ppm of dosage passes through high-speed mixer
15~20min is mixed, tiny alumen ustum is generated；It is added flocculation aid polyacrylamide (PAM), 2~5ppm of dosage is stirred by low speed
It mixes machine and mixes 15~20min, generate larger alumen ustum；Into settling zone, mud-water separation is completed, thus the suspension in adsorption condensing water
Particle reduces turbidity and suspended matter；
(6) turbidity, coloration and the peculiar smell of condensed water are reduced by the filtration of active zeolite, and are made by absorption exchange
Deionization substance is spent, this step carries out in active zeolite filter tank, and filter tank uses the bottom-up flowing of gravity, upflow velocity
13mm/min, 1.2 meters of filtrate packed height；
(7) using suspended matter, colloidal substance and the small particle impurity in melt-blown filter filtering condensed water, the melt-blown filter
The filtering accuracy grade of core is 5 μ s；
(8) by the mixed ion exchanger equipped with hydrogen type cation exchange resin and hydrogen-oxygen type anion exchange resin come
Removal cation and anion, wherein 1.0 meters of the mixed ion exchanger diameter, 5.5 meters of height；Resin cation filling
Highly 0.9 meter, 1.8 meters of resin anion (R.A.) packed height；Pass through acid, alkali on-line regeneration after exchange saturation；Final obtain reaches pot
The recycle-water of " Industrial Boiler water standard " (GB/T1576-2008) as defined in furnace water.
Embodiment 3
By centering material (Yichang) new material Co., Ltd Multifunction energy-saving materials for wall one phase of industrial base project
Autoclave condensation water (COD 2900mg/L, BOD 1200mg/L, petroleum-type 50mg/L, heavy carbonic root 300mg/L, sulfate radical
300mg/L, ammonium ion 50mg/L) process certification test, as a result it see the table below:
The results show that water outlet result after processing reaches " Industrial Boiler water standard " GB/ as defined in boiler feed water
T1576-2008), the target that autoclave condensation water is back to use to boiler is realized.
In addition, the technology is in middle material (Yichang) new material Co., Ltd Multifunction energy-saving materials for wall industry base
Implement in ground second phase project, treatment effect reaches boiler feed water quality requirement.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of autoclave condensation water handles reuse method again, which is characterized in that the method successively includes following process steps:
Acid-base accommodation, demulsification/absorption, anaerobe decomposition, efficient biochemical reaction, coagulating sedimentation, active zeolite processing, micro-filtration and mixed
Close ion exchange.
2. the method according to claim 1, wherein the acid-base accommodation step includes: by into condensed water
Acid-base modifier is added, pH value is adjusted to neutrality.
3. the method according to claim 1, wherein the demulsification step includes: to add into condensed water reversely
Demulsifier 0.9-1.2ml/L overflows petroleum components from condensed water by stirring.
4. according to the method described in claim 3, it is characterized in that, the adsorption step includes: by adsorbing sub- adsorption condensing
The petroleum components overflowed in water, and absorption is packed using non-woven fabrics；And burned after adsorption saturation as boiler oil, into
Row harmless treatment.
5. the method according to claim 1, wherein the anaerobe decomposition step includes: to pass through anaerobism
Include the organic matter of COD, BOD in microorganism decomposition condensed water, generates the gas including carbon dioxide and/or methane.
6. the method according to claim 1, wherein the efficient biochemical reaction step includes: by anoxic, good
Oxygen and ammonia oxidation microbiological decompose the pollutant in condensed water including COD, BOD, ammonia nitrogen compound, and generating includes nitrogen dioxide
And/or the gas of nitrogen, and complete mud-water separation and sterilizing.
7. the method according to claim 1, wherein the coagulating sedimentation step includes:
(1) coagulant is added into condensed water, 10~20ppm of dosage mixes 15~20min by high-speed mixer, generates
Tiny alumen ustum；
(2) flocculation aid is added, 2~5ppm of dosage mixes 15~20min by low-speed mixer, generates larger alumen ustum；
(3) enter settling zone, complete mud-water separation.
8. the method according to claim 1, wherein the active zeolite processing step includes: to be boiled by activation
The filtration of stone reduces turbidity, coloration and the peculiar smell of condensed water, and removes ionic species by absorption exchange interaction.
9. the method according to claim 1, wherein the microfiltration step includes: cold using melt-blown filter filtering
Suspended matter, colloidal substance and small particle impurity in condensate；Wherein, the filtering accuracy grade of the melt-blown filter is 5 μ s.
10. the method according to claim 1, wherein the hybrid ionic exchange step includes: by equipped with hydrogen
The mixed ion exchanger of type cation exchange resin and hydrogen-oxygen type anion exchange resin come remove cation and anion.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333213A (en) * | 2020-02-27 | 2020-06-26 | 华南理工大学 | Deodorization method for steam condensate water of autoclave in calcium silicate board production process |
| TWI742927B (en) * | 2020-11-16 | 2021-10-11 | 國立中興大學 | Compound groundwater remediation method and system |
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