CN109592759A - A kind of board wastewater treatment agent and its preparation, application method - Google Patents
A kind of board wastewater treatment agent and its preparation, application method Download PDFInfo
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- CN109592759A CN109592759A CN201811551874.0A CN201811551874A CN109592759A CN 109592759 A CN109592759 A CN 109592759A CN 201811551874 A CN201811551874 A CN 201811551874A CN 109592759 A CN109592759 A CN 109592759A
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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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- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- Environmental & Geological Engineering (AREA)
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- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The present invention relates to field of waste water treatment, a kind of board wastewater treatment agent and its preparation, application method, including following components: calcium hydroxide 75~85% are provided；Sodium hydroxide 5~15%；Aluminum sulfate 2~8%；Diatomite 1~5%；Active carbon 1~5%.Compared with the present invention carries out chemical precipitation processing with the single dispensing sodium hydroxide that board wastewater generallys use or calcium hydroxide, there is material to configure, and simple, processing cost is cheap, the apparent advantage of using effect.
Description
Technical field
The invention belongs to waste water treatment fields, are related to a kind of board wastewater treatment agent, in particular to a kind of wiring board
Waste water treatment medicament and its preparation, application method.
Background technique
The waste component generated in wiring board production is extremely complex, and a large amount of organic contamination beyond the region of objective existence, waste water are contained in water removal
In also contain a large amount of heavy metal, the common method of process circuit plate waste water has chemical method, bioanalysis, physico-chemical process and electrochemical process
Deng.Wherein, chemical method is the method for most common process circuit plate waste water.
Chemical method be convert poisonous and hazardous substance to by redox reaction or neutralization-precipitation reaction it is nontoxic
Substance, or directly by heavy metal through precipitating or air bearing removed from waste water.Chemical method carries out used when chemical precipitation at present
To medicament be mostly sodium hydroxide and calcium hydroxide, although however, single use sodium hydroxide is preferable to water treatment effect,
But cost is too high, is not suitable for batch and uses；And although single use calcium hydroxide cost is not high, carry out wastewater treatment can make
At a large amount of generations of sludge, the problems such as subsequent processing is difficult, and carrying cost increases is caused, overall cost can not also reduce.
Both had a preferable treatment effect to board wastewater because the invention is a kind of, at the same overall cost it is lower, can be extensive
The board wastewater treatment agent used is extremely important.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, a kind of board wastewater processing medicine is provided
Agent and its preparation, application method.
Object of the invention can be realized by the following technical scheme:
A kind of board wastewater treatment agent, including following components: calcium hydroxide 75~85%；Sodium hydroxide 5~15%；
Aluminum sulfate 2~8%；Diatomite 1~5%；Active carbon 1~5%.
If handling heavy metal wastewater thereby using sodium hydroxide in board wastewater processing, cost of material is high, and uses
Calcium hydroxide come handle heavy metal wastewater thereby although calcium hydroxide alkaline (movable metallic calcium > sodium) stronger than sodium hydroxide, by
It is more much smaller than sodium hydroxide in the solubility of calcium hydroxide, so the alkalinity of calcium hydroxide solution is smaller than sodium hydroxide, therefore
In wastewater treatment, calcium hydroxide solution can generate extremely more sludge compared with sodium hydroxide solution in use, increase wiring board enterprise
The expense of dangerous waste disposal.
Sodium hydroxide, calcium hydroxide handle heavy metal ion chemical equation are as follows:
Cu2++2OH-=Cu (OH)2↓
Ni2++2OH-=Ni (OH)2↓
Zn2++2OH-=Zn (OH)2↓
…….
The main function of the chemicals treatment board wastewater is that the heavy metal production hydroxide in hydroxyl and waste water is heavy
It forms sediment, to realize separation of solid and liquid, removes the heavy metal ion in waste water.
Chemically reaction speed compares, sodium hydroxide > calcium hydroxide；
Compare from sludge settling, calcium hydroxide > sodium hydroxide；
Compare from decolorizing effect, calcium hydroxide > sodium hydroxide；
Compare from processing cost, calcium hydroxide > sodium hydroxide；
Taking into account the above, medicament is aided with a certain proportion of sodium hydroxide and is mixed using combination formula based on calcium hydroxide
Configuration is closed, basicity needed for can effectively adjusting wastewater treatment is more advantageous to the control of waste-water treatment industry cost.
Addition diatomite is based primarily upon considered below in a medicament:
1, intergranular dipole acts on: diatomite particle surface has charge, can adsorb the dipole molecule (atom) of polarizable medium,
Cause these dipole molecules (atom) in the spontaneous monopole orientation in diatomite surface.After in diatomite investment waste water, break useless
The original balanced polarities of aqueous systems, dipolar forces are just had an effect, and promote in sewage colloidal solid and polar molecule (atom) in silicon
Diatomaceous earth surface association forms clustering phenomena and is easily isolated.
2, flocculation: flocculation is the process that little particle or granule agglomerate generate larger flocculate, and diatomite has preferable
Flocculation, can by the small-molecule substance in waste water flocculate at macromolecular, then under the gravity of macromolecular itself formed precipitating,
Facilitate removal.
3, suction-operated: absorption is a kind of skin effect, and the big diatomite surface of dispersion degree has biggish surface free
Can, it is in height thermodynamic instability state, thus there are absorption other materials to drop the tendency of low-surface-energy.Diatomite energy handle
Flocculation group in waste water is adsorbed onto outer surface in diatom body, forms the bulky grain group centered on diatom body.
4, filtration: diatomite has opposite Incoercibility, and the diatomite by certain modification is added useless
It can be settled rapidly after in water, form firm porous filter bed, handled convenient for sludge dewatering and scarfing cinder.
Add in a medicament a small amount of aluminum sulfate be based primarily upon it is considered below:
1, aluminium oxide and aluminium ion are produced after being dissolved in water；Aluminium ion is with negatively charged in positive charge and water after hydrolysis
Suspended particulate substance mutually collides and forms charging neutrality, eliminate suspended matter surface charge, disengaging homophilic charge mutual exclusion principle, into
And it is agglomerated together rapidly, form the particle for being greater than water buoyancy.
2, aluminium oxide can react with water: Al3++3H2O=Al (OH)3+3H+, this aluminium hydroxide is a kind of with suction
The adhesivity substance of attached collection effect, fine suspension in water can be carried out adsorption-condensation, make the suspended matter in waste water small by it
Grain reaches the amount of gravity precipitating, and settles rapidly under the action of aluminium hydroxide.
Add in a medicament a small amount of activated carbon be based primarily upon it is considered below:
1, active carbon has tiny gap, can in trap water bulky grain pollutant.
2, the addition of active carbon can make water body limpider, can reduce pollutant and coloration in water.
Preferably, a kind of board wastewater treatment agent, including following components: calcium hydroxide 78~82%；Hydroxide
Sodium 8~12%；Aluminum sulfate 4~6%；Diatomite 3~5%；Active carbon 1~2%.
Preferably, board wastewater treatment agent is soluble easily in water.
A kind of preparation method of board wastewater treatment agent, comprising the following steps:
S1, diatomite is mixed with active carbon, crushes, be once sieved, mixture is made；
S2, mixture is mixed with calcium hydroxide, sodium hydroxide, aluminum sulfate, is crushed, secondary sieving, route is made
Plate Waste water treatment medicament.
Preferably, sieve pore is 100~200 mesh when primary sieving, sieve pore is not less than 200 mesh when secondary sieving.
A kind of application method of board wastewater treatment agent, comprising the following steps:
P1, board wastewater treatment agent is added in board wastewater, the board wastewater treatment agent and route
The mass ratio of plate waste water is 0.1~15g:1L；
P2, pH to 10~12.5 is adjusted；
P3, board wastewater layering is stood, upper layer is supernatant, and lower layer is precipitating；
P4, filtering, by supernatant and precipitation and separation.
Preferably, auxiliary agent is added after the step P2, the auxiliary agent includes vulcanized sodium and aluminium polychloride.
Preferably, the assistant concentration and dosage are as follows: 0.1~5% sodium sulfide solution, additional amount are board wastewater
The 0~1% of quality；0.1~30% aluminium polychloride (PAC) solution, additional amount are the 0~2% of board wastewater quality.
Preferably, the auxiliary agent further includes polyacrylamide.
Preferably, the concentration and dosage are as follows: 0.01~0.1% polyacrylamide (PAM) solution, additional amount is line
The 0~1.5% of road plate wastewater quality.
Preferably, the board wastewater includes organic wastewater, comprehensive wastewater and complexing waste water.
Compared with prior art, the invention has the following advantages that
1, the present invention relates to a kind of board wastewater treatment agent and its manufacture, application method, the treatment agent and route
The single dispensing sodium hydroxide or calcium hydroxide that plate waste water generallys use carry out chemical precipitation processing and compare, and have material configuration letter
It is single, processing cost is cheap, the apparent advantage of using effect.
2, material involved in the present invention is simple and easy to get, preparation is simple, excellent effect and performance is stablized when handling waste water,
Peculiar smell is not generated in use process, and pH is suitable with existing alkali, lime treatment medicament after being dissolved in water, can substitute rapidly
Existing treatment agent.
3, cost can be not only greatly reduced in the board wastewater treatment agent in the present invention in the preparation, in use
The sludge quantity of generation is less, will not increase artificial and carrying cost in subsequent processing sludge, therefore overall cost is low, is convenient for city
It promotes field.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously
It is not limited to these embodiments.
Wastewater treatment in comparison sodium hydroxide (piece alkali), calcium hydroxide (lime is that can obtain after raw material is dissolved in water) and the present invention
Medicament is to the treatment effect of board wastewater, and result is as shown in Examples 1 to 33.
Embodiment 1,2 is that sample is assessed in a small amount；Embodiment 3 is made a living production line test.
Embodiment 1
The board wastewater treatment agent used in the present embodiment, including following components:
Calcium hydroxide 78%；Sodium hydroxide 8%；Aluminum sulfate 4%；Diatomite 6%；Active carbon 4%.Board wastewater processing
Medicament is soluble easily in water.
The preparation method of wiring board Waste water treatment medicament in the present embodiment, comprising the following steps:
S1, diatomite is mixed with active carbon, crushes, be once sieved, molecular sieve is 150 meshes, and mixture is made；
S2, mixture is mixed with calcium hydroxide, sodium hydroxide, aluminum sulfate, is crushed, secondary sieving, molecular sieve is
Board wastewater treatment agent is made in 200 meshes.
The application method of wiring board Waste water treatment medicament in the present embodiment, comprising the following steps:
P1, following substance is separately added into 250mL board wastewater, is contrasted test:
1. 0.07g piece alkali；
2. 0.07g lime；
3. 0.07g board wastewater treatment agent obtained above；
P2, pH to 12 ± 0.5 is adjusted；
P3, auxiliary agent is added into three groups of waste water respectively, wherein polymerize chlorine to 0.75% vulcanized sodium 5mL+28% is 1. 2. added
Change aluminium 0.5mL；0.75% vulcanized sodium 5mL+28% aluminium polychloride 0.1mL is added to 3. middle；
P4, board wastewater layering is stood, upper layer is supernatant, and lower layer is precipitating；
P5, filtering, by supernatant and precipitation and separation.
By lime, the physico-chemical property of piece alkali and wiring board treatment agent and the treatment effect of board wastewater is carried out pair
Than the results are shown in Table 1.
Table 1
It can be concluded that from table 1
1, the wiring board treatment agent appearance in the present invention is grayish white powdery object, similar to lime and piece alkali；
2, free from extraneous odour generates the wiring board treatment agent in the present invention in use；
3, the wiring board treatment agent in the present invention is dissolved in the pH value after water and differs smaller with lime, piece alkali, and deviation exists
12 ± 0.5, easily production is direct plungeed into instead of existing treatment agent；
4, the present invention in wiring board treatment agent be added to waste water after, there is flocky precipitate to generate rapidly and decline it is heavy
Bottom, sedimentation effect is preferable, and supernatant is limpid；
5, will precipitating with supernatant separation after, detect the content of copper ion in supernatant, three kinds for the treatment of agents all have compared with
The good effect for removing copper ion, wherein the wiring board treatment agent effect in of the invention is best, and auxiliary dosage is minimum；
6, the precipitating in three kinds for the treatment of agent processed waste waters is filtered, filter cake sample is made and weighs, wherein piece
The sludge weight that alkali process medicament generates is most light, and the sludge quantity that lime treatment medicament generates is maximum, the reason is that calcium ion is easy
It is formed and is precipitated with other anion；80% component is calcium hydroxide in wiring board treatment agent in the present invention, but gram
This disadvantage for having taken calcium hydroxide sludge easy to form uses the present invention as treatment agent, and the sludge weight of generation only compares
Piece alkali process medicament weighs 6% or so, lighter by 29.5% than the sludge that lime treatment medicament generates, and greatly reduces subsequent processing sludge
Storage and transportation and cost of labor.
Embodiment 2
The board wastewater treatment agent used in the present embodiment, including following components:
Calcium hydroxide 80%；Sodium hydroxide 10%；Aluminum sulfate 5%；Diatomite 3%；Active carbon 2%.At board wastewater
It is soluble easily in water to manage medicament.
The preparation method of wiring board Waste water treatment medicament in the present embodiment, comprising the following steps:
S1, diatomite is mixed with active carbon, crushes, be once sieved, molecular sieve is 200 meshes, and mixture is made；
S2, mixture is mixed with calcium hydroxide, sodium hydroxide, aluminum sulfate, is crushed, secondary sieving, molecular sieve is
Board wastewater treatment agent is made in 200 meshes.
The application method of wiring board Waste water treatment medicament in the present embodiment, comprising the following steps:
P1, following substance is separately added into 200mL board wastewater, is contrasted test:
1. piece alkali；2. lime；3. board wastewater treatment agent obtained above；
P2, pH to 10.5~12 is adjusted；
P3, auxiliary agent is added, auxiliary agent is vulcanized sodium+aluminium polychloride+polyacrylamide；
P4, board wastewater layering is stood, upper layer is supernatant, and lower layer is precipitating；
P5, filtering, by supernatant and precipitation and separation.
By lime, the physico-chemical property of piece alkali and wiring board treatment agent and the treatment effect of board wastewater is carried out pair
Than the results are shown in Table 2.
It can be concluded that from table 2
1, the wiring board treatment agent in the present invention is in condition identical with lime treatment medicament, piece alkali process dosing
Under, pH value difference is smaller, can use directly as the substitute of piece alkali process medicament or lime treatment medicament.
2, the wiring board treatment agent in lime treatment medicament, piece alkali process medicament and the present invention is compared to comprehensive wastewater
Treatment effect, it is as a result as follows: three kinds for the treatment of agents to be added in comprehensive wastewater respectively, after five minutes, at lime treatment medicament
The waste water of reason has precipitating to generate, and precipitating is sunk to the bottom in loose sand shape and decline, and supernatant is more muddy, has the visible tiny floating of naked eyes
Object；The waste water of piece alkali process chemicals treatment has precipitating to generate, and most of precipitating decline is sunk to the bottom, and fraction precipitating is suspended in supernatant
In, there is obvious large granular impurity in supernatant；Treatment agent of the present invention has flocky precipitate generation, and sediment rolls into a ball Cheng Yituan
And decline and sink to the bottom, supernatant is limpid, almost without macroscopic floating material.That is, coming from processing comprehensive wastewater angle
It says, even if aluminium polychloride is only the 1/5 of remaining two kinds for the treatment of agent to the treatment agent in the present invention when in use, to synthesis
The treatment effect of waste water is still best.
3, the wiring board treatment agent compared in lime treatment medicament, piece alkali process medicament and the present invention is organic to low concentration
The treatment effect of waste water, as a result as follows: three kinds for the treatment of agents are added in low-concentration organic waste water respectively, after five minutes, stone
The waste water that grey treatment agent is handled has precipitating to generate, and precipitating is sunk to the bottom in loose sand shape and decline, and supernatant is more muddy, has naked eyes visible
Tiny floating material；The waste water of piece alkali process chemicals treatment has solid matter generation, and most of solid matter swims in waste water table
Face, fraction precipitating are suspended in waste water, and waste water is more muddy；Treatment agent of the present invention has sediment generation, sediment decline
It sinks to the bottom, supernatant is limpider.That is, for processing low-concentration organic waste water angle, even if the processing medicine in the present invention
Aluminium polychloride is only the 1/5 of remaining two kinds for the treatment of agent when in use for agent, to the treatment effect of low-concentration organic waste water according to
It is so best.
4, the wiring board treatment agent in lime treatment medicament, piece alkali process medicament and the present invention is compared to complexing waste water
Treatment effect, it is as a result as follows: three kinds for the treatment of agents to be added in complexing waste water respectively, through ten minutes later, at lime treatment medicament
The waste water of reason has a large amount of precipitatings to generate, and precipitating decline is sunk to the bottom, and supernatant is limpider, has the visible tiny floating material of naked eyes；Piece alkali
The waste water for the treatment of agent processing has solid matter generation, and most of solid matter decline is sunk to the bottom, and fraction swims in wastewater surface,
Waste water is more muddy, it is more difficult to separate solid matter and waste water；Treatment agent of the present invention has sediment generation, and sediment decline is heavy
Bottom, supernatant are limpider.That is, for the angle of processing complexing waste water, even if the treatment agent in the present invention makes
Used time aluminium polychloride is only the 1/5 of remaining two kinds for the treatment of agent, still best to the treatment effect of complexing waste water.
4, will precipitating with supernatant separation after, detect the content of copper ion in supernatant, three kinds for the treatment of agents all have compared with
The good effect for removing copper ion, wherein the wiring board treatment agent effect in of the invention is best, and auxiliary dosage is minimum.
Embodiment 3
The board wastewater treatment agent used in the present embodiment, including following components:
Calcium hydroxide 80%；Sodium hydroxide 10%；Aluminum sulfate 5%；Diatomite 3%；Active carbon 2%.At board wastewater
It is soluble easily in water to manage medicament.
The preparation method of wiring board Waste water treatment medicament in the present embodiment, comprising the following steps:
S1, diatomite is mixed with active carbon, crushes, be once sieved, molecular sieve is 200 meshes, and mixture is made；
S2, mixture is mixed with calcium hydroxide, sodium hydroxide, aluminum sulfate, is crushed, secondary sieving, molecular sieve is
Board wastewater treatment agent is made in 230 meshes.
The application method of wiring board Waste water treatment medicament in the present embodiment, comprising the following steps:
P1, board wastewater treatment agent obtained above is added in board wastewater；
P2, pH to 10.5~12 is adjusted；
P3, auxiliary agent is added, auxiliary agent is vulcanized sodium+aluminium polychloride+polyacrylamide；
P4, board wastewater layering is stood, upper layer is supernatant, and lower layer is precipitating；
P5, filtering, by supernatant and precipitation and separation.
The effect (1~7 day) and wiring board treatment agent of the piece alkali process waste water of same concentrations are handled into waste water (8~14
It) effect compare, wherein wiring board treatment agent of the invention is when in use, the additional amount of auxiliary agent PAC is at piece alkali
The 1/5 of medicament is managed, the results are shown in Table 3.
It can be concluded that from table 3
1, for invention medicament as piece alkali in practice configuration concentration, dosage and piece alkali are close.
2, using water quality coloration after invention medicament be improved significantly, each sedimentation basin water quality is limpid than before.
3, it from monitoring data, is reduced using the copper ion concentration being discharged after invention medicament obvious.
4, what the practical dosage of PAC can be reduced to original dosage 1/5 still keeps preferable water treatment effect.
Table 2
Table 3
Claims (10)
1. a kind of board wastewater treatment agent, which is characterized in that including following components:
Calcium hydroxide 75~85%；
Sodium hydroxide 5~15%；
Aluminum sulfate 2~8%；
Diatomite 1~5%；
Active carbon 1~5%.
2. a kind of board wastewater treatment agent according to claim 1, which is characterized in that including following components:
Calcium hydroxide 78~82%；
Sodium hydroxide 8~12%；
Aluminum sulfate 4~6%；
Diatomite 3~5%；
Active carbon 1~2%.
3. a kind of board wastewater treatment agent according to claim 1, which is characterized in that board wastewater treatment agent
It is soluble easily in water.
4. a kind of preparation method of board wastewater treatment agent, which comprises the following steps:
S1, diatomite is mixed with active carbon, crushes, be once sieved, mixture is made；
S2, mixture is mixed with calcium hydroxide, sodium hydroxide, aluminum sulfate, is crushed, secondary sieving, it is useless that wiring board is made
Water treatment agent.
5. a kind of preparation method of board wastewater treatment agent according to claim 4, which is characterized in that primary sieving
When sieve pore be 150~200 mesh, sieve pore is not less than 200 mesh when secondary sieving.
6. a kind of application method of board wastewater treatment agent, comprising the following steps:
P1, board wastewater treatment agent is added in board wastewater, the board wastewater treatment agent and wiring board are useless
The mass ratio of water is 0.1~15g:1L；
P2, pH to 10~12.5 is adjusted；
P3, board wastewater layering is stood, upper layer is supernatant, and lower layer is precipitating；
P4, filtering, by supernatant and precipitation and separation.
7. a kind of application method of board wastewater treatment agent according to claim 6, which is characterized in that the step
Auxiliary agent is added after P2, the auxiliary agent includes vulcanized sodium and aluminium polychloride.
8. a kind of application method of board wastewater treatment agent according to claim 7, which is characterized in that the auxiliary agent
Concentration and dosage are as follows:
0.1~5% sodium sulfide solution, additional amount are the 0~1% of board wastewater quality；
0.1~30% aluminium polychloride (PAC) solution, additional amount are the 0~2% of board wastewater quality.
9. a kind of application method of board wastewater treatment agent according to claim 7, which is characterized in that the auxiliary agent
It further include polyacrylamide.
10. a kind of application method of board wastewater treatment agent according to claim 9, which is characterized in that described to help
Agent concentration and dosage are as follows:
0.01~0.1% polyacrylamide (PAM) solution, additional amount are the 0~1.5% of board wastewater quality.
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| CN110204082A (en) * | 2019-04-30 | 2019-09-06 | 湖北龙腾电子科技有限公司 | The processing method of extraneous copper in a kind of wiring board sewage |
| CN111689617A (en) * | 2020-07-02 | 2020-09-22 | 苏州中材建设有限公司 | Dry-process cement production line wastewater treatment system |
| CN113754130A (en) * | 2021-09-30 | 2021-12-07 | 广东中奕环保科技有限公司 | Tin stripping waste liquid recycling and regeneration treatment system and method |
| CN115432791A (en) * | 2022-09-03 | 2022-12-06 | 郑州楷润市政工程设计有限公司 | Water treatment combined medicament and nanofiltration concentrated water composite treatment process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110204082A (en) * | 2019-04-30 | 2019-09-06 | 湖北龙腾电子科技有限公司 | The processing method of extraneous copper in a kind of wiring board sewage |
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