A kind of plate developing machine liquid waste processing and the method and device for recycling
Technical field
It is more particularly to a kind of to rinse sun the present invention relates to a kind of plate developing machine liquid waste processing and the method and device that recycles
The method and device of liquid waste processing and water circulation use after pattern PS editions.
Background technology
During the photosensitive layer exposure of plate, areas form water insoluble polymer or non-graphic part forms and is dissolved in
The polymer of water.Development washes the photosensitive layer of non-graphic part, substantial amounts of discard solution is thereby produced, in these solution
Contain diazonium mixture, remaining colloid, diazo resin, insoluble indone compound and other organic pollutions.Some enterprises without
Method recycling, directly enters river by waste liquid, and greatly pollution is caused to environment;Some enterprises take the side of simple recovery
Method, transfers to other business processes after waste liquid is piled up, because both are in the discrepancy of recovery time, long-term accumulation causes space wave
Take, increased cost recovery.
The content of the invention
The purpose of the present invention is directed to the deficiencies in the prior art, there is provided a kind of positive-type ps editions flushing waste treatment and circulation
The method and apparatus for utilizing, the method and device by collecting plate developing machine waste liquid, remaining colloid in filtering waste liquid, diazo resin,
The particles such as insoluble indone, and extract and separate goes out dissolved organic matter solute, realizes recycling for treatment water, the environmental protection of section source.
The inventive method is divided into two aspects, on the one hand residual after chemically and physically method is processed and utilizes development
Liquid, on the other hand according to the device of method design cycle treatment, specific method is as follows:
Step (1), the pretreatment of plate developing machine waste liquid
Plate developing machine waste liquid is precipitated 48~72 hours, the larger impurities sink down of density is treated, supernatant is extracted;
Described plate developing machine waste liquid is coated with the flushing waste of the PS plates of diazonium-type photosensitive liquid for surface, and wherein at least contains
There is one kind in diazo resin, insoluble indone compound;It is useless more than country and the aniline solubility in waste liquid is 2.5~3.0mg/L
Liquid discharge primary standard 1.0mg/L.
The flushing liquor that the PS plates that surface is coated with diazonium-type photosensitive liquid are used in flushing process is alkaline solution, composition
Containing NaOH, benzene sulfonic acid sodium salt, water, pH value is 10~11.
Described diazonium-type photosensitive liquid includes diazo naphthoquinone compound, linear phenol-aldehyde resin, aqueous solvent.
The preliminary clearning filtering of step (2), supernatant
Supernatant carries out preliminary clearning filtering through first level filtering device:First supernatant through the first filter element in waste liquid
The larger solid impurity (particle diameter is more than 100nm) of grain is filtered, and the second filter element is suspension tiny in waste liquid
Thing (particle diameter is in 1~100nm) is filtered out, and (particle diameter exists the insoluble relatively fine particle of the 3rd filter element absorption supernatant
0.1~1nm), while desolventing technology is carried out to waste liquid, so as to obtain the filtered fluid after preliminary clearning.
One kind in filter cotton group, filter paper is set in first filter element;
One kind in quartz sand, glass fibre is set in second filter element;
One kind in activated carbon, swelling perlite powder is set in the 3rd filter element;
The larger particles are to rinse the dirt being mixed into, the caking for producing for a long time;
The suspension is the jelly that reaction is produced;
The relatively fine particle is diazo resin, insoluble indone compound.
Step (3), the pH of a filter water are detected and adjusted
Dilute sulfuric acid is added to filtered fluid, the pH value of waste liquid is remained between 6~7.
Because in alkaline environment, sodium salt is not effectively reversible reaction and produces carboxylic acid, therefore using the method for strong acid weak acid, while
Producing new sodium salt needs easily to be separated from waste liquid.Therefore sulfuric acid is used, the sodium sulphate of generation is beneficial to as electrolyte
The extraction of organic matter.
Step (4), the separating and extracting of organic solution
Organic matter after adding organic solvent toluene extraction step (3) pH to adjust in solution, treats organic solution and water stratification
When, take organic layer to organic matter recovery pond with pumping.
Step (5), the purification of lower aqueous solution
The aqueous layer of processing pond lower floor carries out purification filtering again by valve into two-stage filter:Aqueous layer first
Filtered through the first filter element solid impurity (particle diameter more than 100nm) larger to particle in waste liquid, the second mistake
Filter unit filters out suspension (particle diameter is in 1~100nm) tiny in waste liquid, and the 3rd filter element absorption supernatant is not
Molten relatively fine particle (particle diameter is in 0.1~1nm) simultaneously does desolventing technology to waste liquid.Secondary filter water injection retaining after purification
It is to be measured stand-by in pond.
First filter element is the one kind in filter cotton group, filter paper;
Second filter element is the one kind in quartz sand composite can, glass fibre;
3rd filter element is the one kind in absorbent charcoal adsorber, swelling perlite powder;
The larger particles are to rinse the dirt being mixed into, the caking for producing for a long time;
The suspension is the jelly that reaction is produced;
The relatively fine particle is diazo resin, insoluble indone compound.
The pH detections and regulation of step (6), secondary filter water
In cistern, detect the acid-base value of filter water so as to control to be neutralized to addition in processing pond using pH detectors
Liquid, makes the pH value of filter water remain between 10~11.100~150mL mass concentrations are added by solution adding set
NaOH for 5% adjusts the pH of alkaline waste liquor so that waste liquid is alkalescent, is conducive to the flushing of sheet material.
Step (7), the separating and extracting of organic solution.
The residual organic substances in the stupid extraction solution of 10~20L organic solvent first are added, when organic solution and water stratification,
Organic layer to organic matter recovery pond is taken with pumping.
Step (8), can recycling with water.
Cistern lower floor aqueous layer is available flushing water, and sampling detects that its aniline solubility is 0.1~0.5mg/L, less than state
Between 10~11, major solute is NaOH and sodium sulphate, therefore can directly rush version for family discharge of wastewater index 1mg/L, pH.
After valve is opened, the water of 850~1450L can be extracted at washing with suction pump in cistern carries out rushing version step,
Realize the circulation of water.
It is a further object to provide plate developing machine liquid waste processing and recycling device, the device includes waste liquid
Pond, first level filtering device, processing pond, two-stage filter, organic matter recovery pond, cistern, pH detectors, solution addition dress
Put;, by connecing the flushing liquor of plate developing machine with valvular pipeline, the liquid outlet of waste liquid pool is by with pump for the inlet of waste liquid pool
Pipeline connect the inlet of first level filtering device, the liquid outlet of first level filtering device connects the inlet of processing pond by pipeline, locates
The organic layer outlet for managing pond connects organic matter recovery pond by the pipeline of pump, and the aqueous layer of processing pond is exported by with valvular
Pipeline connects the inlet of two-stage filter, and the liquid outlet of two-stage filter connects the inlet of cistern, retaining by pipeline
The organic layer outlet in pond connects organic matter recovery pond by the pipeline of pump, and the aqueous layer of cistern is exported by with valve and pump
Pipeline connect plate developing machine water inlet.
Described first level filtering device, two-stage filter include the first filter element, the successively from feed liquor to liquid is gone out
Two filter elements, the 3rd filter element;Wherein the first filter element is the one kind in filter cotton group, filter paper, the second filter element
It is the one kind in quartz sand composite can, glass fibre, the 3rd filter element is in absorbent charcoal adsorber, swelling perlite powder
It is a kind of;
PH detectors, solution adding set are provided with described processing pond, the pH detectors are used for liquid in detection process pond
The acid-base value of body, the solution adding set is used to add dilute sulfuric acid;
PH detectors, solution adding set are provided with described cistern, the pH detectors are used to detect liquid in cistern
The acid-base value of body, the solution adding set is used to add NaOH.
The position of the test side of pH detectors can be adjusted up and down, the pH value for detecting different depth solution.
Preferably, the inlet pipe outlet of waste liquid pool can be adjusted in case exporting quilt up and down near waste liquid pool bottom
Sediment is blocked.
Preferably, waste liquid pool is made up of sealing combining glass material, volume is 3000L, can observe waste liquid precipitation and receive
Collection situation, prevents organic matter from volatilizing and pollutes.
Preferably, the liquid outlet pipeline location of waste liquid pool can be adjusted up and down, depth of drawing water can be voluntarily controlled;And waste liquid
Pond sediment periodic cleaning.
Preferably, processing pond is made up of sealing combining glass material, volume is 3000L, can observe supernatant liquid filtering
Situation, prevents organic matter from volatilizing and pollutes.
Beneficial effect:
The inventive method realizes the plate developing machine wastewater through organic matter treatment industrial applications, for relevant enterprise provides treatment
Technology, realizes the abundant recycling of waste liquid, beneficial to environmental protection, economizes on resources, and can reduce enterprise's consumptive material expense.
Apparatus of the present invention are using conventional industrial equipment, process is simple, beneficial to Enterprise Construction, management and maintenance.
Brief description of the drawings
Fig. 1 is apparatus of the present invention structural representation.
Marked in figure:1 is plate developing machine, and 2 is valve, and 3 is water pipe, and 4 is the first filter element, and 5 is the second filter element, 6
It is the 3rd filter element, 7 is pH detectors, and 8 is solution adding set, and 9 is pump, and 10 is waste liquid pool, and 11 is processing pond, and 12 is have
Machine thing recovery pond, 13 is cistern.
Specific embodiment
The present invention is further analyzed with specific embodiment below in conjunction with the accompanying drawings.
Following examples method is based on following plate developing machine liquid waste processings and recycling device, as shown in figure 1, the device bag
Include waste liquid pool 10, first level filtering device, processing pond 11, two-stage filter, organic matter recovery pond 12, the detection of cistern 13, pH
Instrument 7, solution adding set 8;The inlet of waste liquid pool 10 connects the flushing liquor of plate developing machine 1, waste liquid pool by the pipeline with valve 2
10 liquid outlet connects the inlet of first level filtering device by the pipeline with pump 9, and the liquid outlet of first level filtering device is by pipe
Road connects the inlet of processing pond 11, and the organic layer outlet of processing pond 11 connects organic matter recovery pond 12, processes by the pipeline of pump 9
The aqueous layer outlet in pond 11 connects the inlet of two-stage filter by the pipeline with valve 2, and two-stage filter goes out liquid
Mouth connects the inlet of cistern 13 by pipeline, and the organic layer outlet of cistern 13 connects organic matter and reclaims by the pipeline of pump 9
Pond 12, the aqueous layer outlet of cistern 13 connects plate developing machine water inlet by the water pipe 3 with valve 2 and pump 9.
Described first level filtering device, two-stage filter include the first filter element 4, the successively from feed liquor to liquid is gone out
Two filter elements 5, the 3rd filter element 6;Wherein the first filter element is the one kind in filter cotton group, filter paper, and the second filtering is single
Unit is the one kind in quartz sand composite can, glass fibre, and the 3rd filter element is in absorbent charcoal adsorber, swelling perlite powder
One kind;
PH detectors 7, solution adding set 8 are provided with described processing pond 11, the pH detectors are used for detection process pond
The acid-base value of liquid in 11, the solution adding set is used to add dilute sulfuric acid and toluene organic solution;
PH detectors 7, solution adding set 8 are provided with described cistern 13, the pH detectors are used to detect cistern
The acid-base value of liquid in 13, the solution adding set is used to add NaOH and toluene organic solution.
The position of the test side of pH detectors can be adjusted up and down, the pH value for detecting different depth solution.
The inlet pipe outlet of waste liquid pool 10 can up and down be adjusted in case exporting and be deposited thing near the bottom of waste liquid pool 10
Block.
Waste liquid pool 10 is made up of sealing combining glass material, and volume is 3000L, can observe waste liquid precipitation collection situation,
Prevent from organic matter from volatilizing to pollute.
The liquid outlet pipeline location of waste liquid pool 10 can be adjusted up and down, can voluntarily control depth of drawing water;And waste liquid pool 10 is heavy
Starch periodic cleaning.
Processing pond 11 is made up of sealing combining glass material, and volume is 3000L, can observe supernatant liquid filtering situation, prevents
Only organic matter volatilization is polluted.
Embodiment 1
Step (1), waste collection precipitation.
Selection width w=905mm, length l=565mm, thickness s=0.30mm, non-porous positive-type PS plate material is shown
Shadow is rinsed.The photosensitive layer of its surface coating is 2.9 μm, and the photosensitive fluid solid content of diazonium-type is 2g/m2.See the 1g diazonium naphthalenes of light part
Quinone emulsion is decomposed, and generates 0.8g intermediate indone compounds.Water scouring water rinses one block of water of version preferably circulating water
It is 25kg to measure, and wherein NaOH is 0.25g, and water temperature should be maintained at 20 DEG C.To be carried out in 40 waste collections of flushing to waste liquid pool
Precipitation, the sedimentation time is 48 hours, when the larger impurity of density is located at lower floor, records the sedimentation time.Sampling is measured in waste liquid
Aniline solubility be 2.6mg/L.1000L supernatants are extracted using water pump to be filtered.
The preliminary clearning filtering of step (2), supernatant.
Supernatant passes through first level filtering device.In first filter element filter cotton group to rinsed in waste liquid the dirt being mixed into,
The caking for producing for a long time is filtered, the and quartz sand filters out suspension tiny in waste liquid in filter element, the 3rd
The insoluble diazo resin of charcoal absorption supernatant, insoluble indone compound in filter element, and desolventing technology is done to waste liquid.
It is to be measured pending in filter water injection processing pond after preliminary clearning.
Step (3), the pH of a filter water are detected and adjusted.
In processing pond, using the acid-base value of waste liquid after the detection preliminary clearning of pH detectors so as to control to be added in processing pond
Neutralizer, makes the pH value of waste liquid remain at 6.5.The dilute sulfuric acid that 100mL concentration is 5% is added to adjust by solution adding set
Save the pH of alkaline waste liquor so that waste liquid is faintly acid.
Step (4), the separating and extracting of organic solution.
The organic matter in the stupid extraction solution of 90L organic solvent first is added, when organic solution and water stratification, is taken with pumping
Organic solution is to organic matter recovery pond.
Step (5), the purification of lower aqueous solution.
The aqueous solution of processing pond lower floor enters two-stage filter by valve, and filter cotton group is to useless in the first filter element
Rinse the dirt being mixed into, the caking for producing for a long time in liquid to be filtered, quartz sand is tiny in waste liquid in the second filter element
Suspension filter out, the insoluble diazo resin of charcoal absorption supernatant, insoluble indone compound in the 3rd filter element,
And desolventing technology is done to waste liquid.It is to be measured stand-by in secondary filter water injection cistern after purification.
The pH detections and regulation of step (6), secondary filter water.
In cistern, detect the acid-base value of filter water so as to control to be neutralized to addition in processing pond using pH detectors
Liquid, makes the pH value of filter water remain at 7.5.The NaOH that 100mL concentration is 5% is added to adjust alkali by solution adding set
The pH of property waste liquid so that waste liquid is alkalescent, is conducive to the flushing of sheet material.
Step (7), the separating and extracting of organic solution
The residual organic substances in the stupid extraction solution of 10L organic solvent first are added, when organic solution and water stratification, pump is used
Extract organic solution to organic matter recovery pond.
Step (8), can recycling with water.
Cistern lower floor is available flushing water, and sampling detects that its aniline solubility is 0.1mg/L, refers to less than national discharge of wastewater
Mark 1.0mg/L, pH is 10.5, and major solute is NaOH and sodium sulphate, can directly rush version.
After valve is opened, the water of 950L can be extracted at washing with suction pump in cistern carries out rushing version step, realizes water
Circulation.
Embodiment 2
Step (1), waste collection precipitation
Selection width w=1030mm, length l=770mm, thickness s=0.30mm, non-porous positive-type PS plate material is shown
Shadow is rinsed.The photosensitive layer of its surface coating is 3.1 μm, and the photosensitive fluid solid content of diazonium-type is 2g/m2.See 1~2g weights of light part
Quinoline quinone emulsion is decomposed, and generates 1.8g intermediate indone compounds.Water scouring water rinses one piece of version preferably circulating water
Water be 35kg, wherein NaOH is 0.35g, and water temperature should be maintained at 24 DEG C.By in 50 waste collections of flushing to waste liquid pool
Precipitated, the sedimentation time is 72 hours, when the larger impurity of density is located at lower floor, recorded the sedimentation time.Sampling measures useless
Aniline solubility in liquid is 3.0mg/L.1500L supernatants are extracted using water pump to be filtered.
The preliminary clearning filtering of step (2), supernatant.
Supernatant passes through first level filtering device.In first filter element filter paper to rinsed in waste liquid the dirt being mixed into, it is long when
Between the caking that produces filtered, glass fibre filters out colloidal suspensions tiny in waste liquid in the second filter element, the
Swelling perlite powder absorption supernatant insoluble diazo resin, insoluble indone compound in three filter elements, and waste liquid is done
Desolventing technology.It is to be measured pending in filter water injection processing pond after preliminary clearning.
Step (3), the pH of a filter water are detected and adjusted.
In processing pond, using the acid-base value of waste liquid after the detection preliminary clearning of pH detectors so as to control to be added in processing pond
Neutralizer, makes the pH value of waste liquid remain at 6.5.The dilute sulfuric acid that 150mL concentration is 5% is added to adjust by solution adding set
Save the pH of alkaline waste liquor so that waste liquid is faintly acid.
Step (4), the separating and extracting of organic solution.
The organic matter in the stupid extraction solution of 150L organic solvent first is added, when organic solution and water stratification, pumping is used
Take organic solution to organic matter recovery pond.
Step (5), the purification of lower aqueous solution.
The aqueous solution of processing pond lower floor enters two-stage filter by valve, and filter paper is in waste liquid in the first filter element
Rinse the dirt being mixed into, the caking for producing for a long time to be filtered, glass fibre is tiny in waste liquid in the second filter element
Colloidal suspensions are filtered out, swelling perlite powder absorption supernatant insoluble diazo resin, insoluble indenes in the 3rd filter element
Assimilation compound, and desolventing technology is done to waste liquid.It is to be measured stand-by in secondary filter water injection cistern after purification.
The pH detections and regulation of step (6), secondary filter water.
In cistern, detect the acid-base value of filter water so as to control to be neutralized to addition in processing pond using pH detectors
Liquid, makes the pH value of filter water remain at 10.5.The NaOH that 150mL concentration is 5% is added to adjust by solution adding set
The pH of alkaline waste liquor so that waste liquid is alkalescent, is conducive to the flushing of sheet material.
Step (7), the separating and extracting of organic solution.
The residual organic substances in the stupid extraction solution of 20L organic solvent first are added, when organic solution and water stratification, pump is used
Extract organic solution to organic matter recovery pond.
Step (8), can recycling with water.
Cistern lower floor is available flushing water, and sampling detects that its aniline solubility is 0.2mg/L, refers to less than national discharge of wastewater
Mark 1.0mg/L, pH is 10.5, and major solute is NaOH and sodium sulphate, can directly rush version.
After valve is opened, the water of 1450L can be extracted at washing with suction pump in cistern carries out rushing version step, realizes water
Circulation.
Above-described embodiment is not that, for limitation of the invention, the present invention is not limited only to above-described embodiment, as long as meeting
Application claims, belong to protection scope of the present invention.