CN107686146A - A kind of handling process of aquaculture heavy metal in waste water copper - Google Patents
A kind of handling process of aquaculture heavy metal in waste water copper Download PDFInfo
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- CN107686146A CN107686146A CN201710815534.3A CN201710815534A CN107686146A CN 107686146 A CN107686146 A CN 107686146A CN 201710815534 A CN201710815534 A CN 201710815534A CN 107686146 A CN107686146 A CN 107686146A
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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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
-
- 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
-
- 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
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention discloses a kind of handling process of aquaculture heavy metal in waste water copper, the heavy metal copper in aquaculture waste water is adsorbed using a kind of coupling negative magnetic modified meerschaum adsorbent, and adsorbent in waste water after adsorption reaction is collected by the integrated processing technique of design, eluted and reuse.Negative stable performance of the magnetic modified meerschaum adsorbent in waste water of coupling in the present invention, has preferable adsorption effect to the heavy metal copper in breeding wastewater, the clearance of heavy metal copper is more than 90%；The preparation method that sepiolite low raw-material cost, coupling and negative magnetic are modified is simple；With paramagnetic adsorbent easily collecting, secondary pollution is not produced；Meanwhile the rate of recovery of the adsorbent after collection after eluent cleaning desorption realizes regeneration cycle use, improves the utilization rate of adsorbent, reduce the cost of wastewater treatment 90% or so substantially.Discharge water after this PROCESS FOR TREATMENT meets the emission request of heavy metal copper content in water environment quality standard.
Description
Technical field
The present invention relates to technical field of waste water processing, more particularly to a kind of processing work of aquaculture heavy metal in waste water copper
Skill.
Background technology
In recent years, as the mankind quickly grow to meat, the continuous growth of egg food demand, livestock and poultry breeding industry, therewith
The environmental problem brought is also increasingly severe.Caused waste water is the major pollutants of aquaculture during livestock and poultry cultivation, is led to
Often it is made up of excreta, food-residue, animal tissue and flushing water.Because many enterprises are in order to accelerate poultry growth, shorten
Culture-cycle, the trace elements such as a large amount of copper, zinc are with the addition of in feed, but these elements in feed largely can not be by animal
Absorb, discharge with fecaluria etc. so as to cause the content of beary metal in breeding wastewater exceeded, generally neglected in cultivating wastewater purification technique
Depending on the processing of heavy metal.Heavy metal element is easily enriched with the environment, if not being acted upon that environment can be produced greatly dirt
Dye, while be also possible to produce health because of the conduction of food chain and greatly threaten.
In addition to the use of heavy metal is reduced from source, at present for the processing method master of the heavy metal in removal waste water
There are Physical, chemical method and bioanalysis.The reagent cost of wherein chemical method is high and easily causes secondary pollution；Bioanalysis counterweight
The absorption enrichment of metal generally requires longer time；It is a kind of that Physical, which carries out efficient absorption using activated carbon as adsorbent,
Relatively simple processing mode, but the cost height of activated carbon is difficult to reuse again, therefore find a kind of Cheap highly effective and be easy to
The adsorbent of reuse is urgent problem instantly.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of processing of aquaculture heavy metal in waste water copper
Technique, using adsorbent of the modified magnetic meerschaum as heavy metal, have cost cheap, easy to operate, heavy metal copper
Advantages of good adsorption effect, adsorbent repeat the advantages that utilizing.
The handling process of a kind of aquaculture heavy metal in waste water copper proposed by the present invention, it is characterised in that method and step is such as
Under：
S1：The SS values for making breeding wastewater by pre-treatment are less than 100mg/L；
S2：Waste water through pre-treatment enters adsorption reaction pond, the Hai Pao being modified by adding the negative magnetic of coupling into adsorption tank
Stone adsorbent heavy metal copper carries out adsorption reaction, and hydraulic detention time is no less than 1h；Simultaneously using agitating device to adsorption tank
In waste water be stirred, accelerate adsorbent heavy metal copper absorption；
S3：Reacted waste water by influent waste water valve enter for sorbent collection, elution, reuse integration at
Manage pond.The collection of adsorbent：The magnetic adsorbent in waste water is reclaimed using three layers of electromagnetism steel mesh in pond, after absorption
Heavy metal in waste water copper content it is up to standard, waste water can be discharged directly by integrated treatment Chi Moduanchushuikou；
S4：The elution of adsorbent：The inlet valve of waste water in reaction tank is closed, and after waste water is vented, opens integration
Eluent inlet valve in processing pond, it is full of processing pond, cleaning desorption is carried out to the adsorbent of enriching heavy metal copper, elute
Opening outlet water at tail end mouth discharges eluent after time reaches 5h, and the eluent of discharge should be unified to collect.
The reuse of S5 adsorbents：Eluent inlet valve is closed, opens clear water inlet valve, and disconnect electromagnetic steel network source
It is set to lose magnetism, negative magnetic suck agent is because current scour comes off from steel mesh, the lifting for passing through peripheral hardware by delivery port with current
Pump is returned in reaction tank, completes recycling for adsorbent.
Preferably, the preparation method step that the meerschaum adsorbent that negative magnetic is modified is coupled in the S2 is as follows：
1) sepiolite original soil particle is subjected to calcination process, 150 DEG C, 12h, removes the organic matter in original soil, table is compared in increase
Area
2) sepiolite particle being calcined after cooling down is added to 0.05-0.1mol/L iron salt solutions, under the conditions of 30-50 DEG C
Stir and evenly mix, then under conditions of nitrogen is passed through, add ammoniacal liquor and adjust pH value of solution to 11-12, it is collectively forming precipitation；It is heavy
After shallow lake is terminated, dried under the conditions of 110 DEG C, cross 100 mesh sieves and obtain a kind of sepiolite of carried magnetic nano iron oxide
Grain.
3) it is 1 by solid-to-liquid ratio by magnetic meerschaum particle and silane coupler solution：(3-5) g/ml is mixed
1h, gained solid is then cleaned into filtering with clear water, 100 mesh sieves are crossed after drying, obtain being coupled the sepiolite particle that negative magnetic is modified.
Preferably, the amount ratio that frerrous chloride and iron chloride press material in the iron salt solutions is 1:(1-3), the molysite are molten
The proportioning of liquid and sepiolite is 0.5L/g.
Preferably, the water that the silane coupler solution proportioning is 10%, 75% methanol, 15% silane coupler.
Preferably, the silane coupler is 1,3- aminopropyl trimethoxysilanes or γ-methacryloxypropyl
Trimethoxy silane (KH-570).
Preferably, residence time of the waste water in adsorption reaction pond is 1-3h in the S2.
Preferably, it is provided with three layers of dismountable magnetization steel mesh in the S3 in integrated treatment pond, three layers of magnetization steel mesh
Aperture is followed successively by 10 along water (flow) direction, 5,1mm.
Preferably, three layers of described magnetization steel mesh are parallel to each other, and with water (flow) direction in 30-60 ° of inclination.
Preferably, the eluent in the S4 is 0.01mol/L HNO3Solution, elution time 5h.
Sepiolite is a kind of clay mineral being widely present, and has larger specific surface area and loose structure, is a kind of day
Right adsorbent.Research shows that the heavy metal heavy metal copper in the sepiolite powder foot couple waste water after high-temperature roasting has good absorption effect
Fruit, its mechanism adsorbed acts on for isomorphous substitution and surface complexation, but sepiolite water imbibition itself is strong, and particle is made and is added to the water
It is difficult to separation after absorption heavy metal to take out.Sepiolite original soil particle, frerrous chloride and iron chloride are pressed to the amount ratio 1 of material herein:
(1-3) is mixed, while adds ammoniacal liquor reaction, and stirring forms precipitation, obtains a kind of Hai Pao of carried magnetic nano iron oxide
Stone particle, then magnetic meerschaum particle and silane coupler solution are mixed, cross 100 mesh sieves after drying, be coupled
The sepiolite particle that negative magnetic is modified.Silane coupler is methoxy silane, and methoxy silane has the ammonia that can chelate heavy metal
Base and sulfydryl, one step modification is grafted to porous sepiolite particle surface, enhances the adsorption capacity of its heavy metal copper,
The water imbibition of sepiolite powder is also reduced simultaneously.After waste water being handled using this kind of meerschaum adsorbent in adsorption reaction pond, sea
Afrodite adsorbent flows into integrated treatment pond with waste water, when the magnetization steel mesh in integrated treatment pond is powered, modified
Meerschaum adsorbent can be adsorbed on magnetization steel mesh, reach the effect separated with waste water, after adsorbent elution terminates, to one
Change processing pond to be passed through clear water and disconnect the power supply on magnetization steel mesh, now meerschaum adsorbent comes off from magnetization steel mesh, then
Magnetization steel mesh is taken out, meerschaum adsorbent can be as clear water be from discharge outlet outflow, into follow-up adsorbent reactivation link.
Compared with prior art, the device have the advantages that being：
1st, advantages of good adsorption effect, modified magnetic meerschaum have preferable adsorption effect to the heavy metal copper in waste water, weight
The clearance of metallic copper is more than 90%；
2nd, the preparation method that sepiolite low raw-material cost, coupling and negative magnetic are modified is simple, without complex conditions；
3rd, with paramagnetic adsorbent easily collecting, secondary pollution is not produced；
4th, the rate of recovery of the adsorbent after eluent cleaning desorption after collecting realizes regeneration 90% or so substantially
Recycle, improve the utilization rate of adsorbent, greatly reduce the cost of wastewater treatment.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the implementation with invention
Example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of process chart of the handling process of aquaculture heavy metal in waste water copper proposed by the present invention；
A kind of Fig. 2 positions knot in the integrated treatment pond of the handling process of aquaculture heavy metal in waste water copper proposed by the present invention
Structure schematic diagram.
In figure：1- pond bodies, 2- water intakes, 3- eluents water inlet, 4- clear water water inlet, 5- first magnetize steel mesh,
6- second magnetizes steel mesh, 7- the 3rd magnetizes steel mesh, 8- discharge outlet.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment 1
Reference picture 1-2, integrated reacting pond, including pond body 1, the side of pond body 1 are respectively equipped with water intake 2, eluent
Water inlet 3 and clear water water inlet 4, the opposite side of pond body 1 are provided with discharge outlet 8, and the first magnetic is sequentially provided with along water (flow) direction inside pond body 1
Change steel mesh 5, second and magnetize the magnetization steel mesh 7 of steel mesh the 6, the 3rd；The first magnetization steel mesh 5, second is magnetized into the magnetic of steel mesh 6 and the 3rd first
Change steel mesh 7 to be electrified, the waste water after adsorption reaction pond is handled then entered into integrated reacting pond by water intake 2,
Waste water by the filtering of three layers of magnetization steel mesh, makes the meerschaum adsorbent in waste water be enriched on the magnetization steel mesh of energization successively,
Waste water after filtering can be discharged directly from discharge outlet 8, after a period of time, closed the valve of adsorption reaction pond water inlet, treated one
After changing the waste water emptying in reaction tank, the valve on eluent water inlet 3 in integrated treatment pond is opened, makes it full of processing
Pond, carries out cleaning desorption to the adsorbent of enriching heavy metal copper, and elution time reaches the valve opened after 5h in discharge outlet 8, will
Eluent is discharged, and the eluent of discharge is unified to be collected, and after elution terminates, the valve on closing eluent water inlet 3, opens clear water
Valve on water inlet 4, and disconnecting electromagnetic steel network source makes it lose magnetism, and bears magnetic suck agent because current scour is from steel mesh
Come off, then take out magnetization steel mesh, now adsorbent is returned in reaction tank with current by discharge outlet 8 by the elevator pump of peripheral hardware,
Complete recycling for adsorbent.
Embodiment 2
A kind of handling process of aquaculture heavy metal in waste water copper, method and step are as follows：
S1：The SS values of breeding wastewater are made to be 20mg/L by pre-treatment；
S2：Waste water through pre-treatment enters adsorption reaction pond, the Hai Pao being modified by adding the negative magnetic of coupling into adsorption tank
Stone adsorbent heavy metal copper carries out adsorption reaction；
S3：Reacted waste water enters integrated treatment pond, will be useless by the magnetic steel mesh being provided with integrated treatment pond
Meerschaum adsorbent in water filters out, and filtered waste water reaches discharge standard, can be directly from first on integrated treatment pond
Discharge outlet is discharged；
S4：The adsorbent of enriching heavy metal copper in integrated treatment pond is handled after a period of time, integrated treatment
After waste water emptying in pond, eluent is added thereto cleaning desorption is carried out to the adsorbent of enriching heavy metal copper；
S5：After elution terminates, clear water is passed through into integrated treatment pond, and disconnecting electromagnetic steel network source makes it lose magnetic
Property, negative magnetic suck agent returns to reaction by delivery port because current scour comes off from steel mesh, with current by the elevator pump of peripheral hardware
Chi Zhong, complete recycling for adsorbent.
The preparation method step that the meerschaum adsorbent that negative magnetic is modified is coupled in S2 is as follows：
1) sepiolite original soil particle is subjected to calcination process, 150 DEG C, 12h, removes the organic matter in original soil, table is compared in increase
Area；
2) sepiolite particle being calcined after cooling down is added to 0.05mol/L iron salt solutions, stirred under the conditions of 30 DEG C mixed
It is even, then under conditions of nitrogen is passed through, add ammoniacal liquor and adjust pH value of solution to 11, it is collectively forming precipitation；After precipitation terminates,
Dried under the conditions of 110 DEG C, cross 100 mesh sieves and obtain a kind of sepiolite particle of carried magnetic nano iron oxide；
3) it is 1 by solid-to-liquid ratio by magnetic meerschaum particle and silane coupler solution:3g/ml carries out mixing 1h, so
Gained solid is cleaned into filtering with clear water afterwards, 100 mesh sieves are crossed after drying, obtains being coupled the sepiolite particle that negative magnetic is modified.
The amount ratio that frerrous chloride and iron chloride press material in iron salt solutions is 1:1, the iron salt solutions and sepiolite are matched somebody with somebody
Than for 0.5L/g.
The water that silane coupler solution proportioning is 10%, 75% methanol, 15% silane coupler.
Silane coupler is 1,3- aminopropyl trimethoxysilanes.
Residence time of the waste water in adsorption reaction pond is 1h in S2.
It is provided with three layers of dismountable magnetization steel mesh in S3 in integrated treatment pond, the aperture of three layers of magnetization steel mesh is along current side
To be followed successively by 10,5,1mm.
Three layers of magnetization steel mesh are parallel to each other, and with water (flow) direction in 30 ° of inclinations.
The HNO that eluent in S4 is 0.01mol/L3Solution, elution time 5h.
Embodiment 3
A kind of handling process of aquaculture heavy metal in waste water copper, method and step are as follows：
S1：The SS values of breeding wastewater are made to be 100mg/L by pre-treatment；
S2：Waste water through pre-treatment enters adsorption reaction pond, the Hai Pao being modified by adding the negative magnetic of coupling into adsorption tank
Stone adsorbent heavy metal copper carries out adsorption reaction；
S3：Reacted waste water enters integrated treatment pond, will be useless by the magnetic steel mesh being provided with integrated treatment pond
Meerschaum adsorbent in water filters out, and filtered waste water reaches discharge standard, can be directly from first on integrated treatment pond
Discharge outlet is discharged；
S4：The adsorbent of enriching heavy metal copper in integrated treatment pond is handled after a period of time, integrated treatment
After waste water emptying in pond, eluent is added thereto cleaning desorption is carried out to the adsorbent of enriching heavy metal copper；
S5：After elution terminates, clear water is passed through into integrated treatment pond, and disconnecting electromagnetic steel network source makes it lose magnetic
Property, negative magnetic suck agent returns to reaction by delivery port because current scour comes off from steel mesh, with current by the elevator pump of peripheral hardware
Chi Zhong, complete recycling for adsorbent.
The preparation method step that the meerschaum adsorbent that negative magnetic is modified is coupled in S2 is as follows：
1) sepiolite original soil particle is subjected to calcination process, 150 DEG C, 12h, removes the organic matter in original soil, table is compared in increase
Area；
2) sepiolite particle being calcined after cooling down is added to 0.1mol/L iron salt solutions, stirred under the conditions of 50 DEG C mixed
It is even, then under conditions of nitrogen is passed through, add ammoniacal liquor and adjust pH value of solution to 12, it is collectively forming precipitation；After precipitation terminates,
Dried under the conditions of 110 DEG C, cross 100 mesh sieves and obtain a kind of sepiolite particle of carried magnetic nano iron oxide；
3) it is 1 by solid-to-liquid ratio by magnetic meerschaum particle and silane coupler solution:5g/ml carries out mixing 1h, so
Gained solid is cleaned into filtering with clear water afterwards, 100 mesh sieves are crossed after drying, obtains being coupled the sepiolite particle that negative magnetic is modified.
The amount ratio that frerrous chloride and iron chloride press material in iron salt solutions is 1:3, the iron salt solutions and sepiolite are matched somebody with somebody
Than for 0.5L/g.
The water that silane coupler solution proportioning is 10%, 75% methanol, 15% silane coupler.
Silane coupler is γ-methacryloxypropyl trimethoxy silane (KH-570).
Residence time of the waste water in adsorption reaction pond is 3h in S2.
It is provided with three layers of dismountable magnetization steel mesh in S3 in integrated treatment pond, the aperture of three layers of magnetization steel mesh is along current side
To be followed successively by 10,5,1mm.
Three layers of magnetization steel mesh are parallel to each other, and with water (flow) direction in 60 ° of inclinations.
The HNO that eluent in S4 is 0.01mol/L3Solution, elution time 5h.
Embodiment 4
A kind of handling process of aquaculture heavy metal in waste water copper, method and step are as follows：
S1：The SS values of breeding wastewater are made to be 60mg/L by pre-treatment；
S2：Waste water through pre-treatment enters adsorption reaction pond, the Hai Pao being modified by adding the negative magnetic of coupling into adsorption tank
Stone adsorbent heavy metal copper carries out adsorption reaction；
S3：Reacted waste water enters integrated treatment pond, will be useless by the magnetic steel mesh being provided with integrated treatment pond
Meerschaum adsorbent in water filters out, and filtered waste water reaches discharge standard, can be directly from first on integrated treatment pond
Discharge outlet is discharged；
S4：The adsorbent of enriching heavy metal copper in integrated treatment pond is handled after a period of time, integrated treatment
After waste water emptying in pond, eluent is added thereto cleaning desorption is carried out to the adsorbent of enriching heavy metal copper；
S5：After elution terminates, clear water is passed through into integrated treatment pond, and disconnecting electromagnetic steel network source makes it lose magnetic
Property, negative magnetic suck agent returns to reaction by delivery port because current scour comes off from steel mesh, with current by the elevator pump of peripheral hardware
Chi Zhong, complete recycling for adsorbent.
The preparation method step that the meerschaum adsorbent that negative magnetic is modified is coupled in S2 is as follows：
1) sepiolite original soil particle is subjected to calcination process, 150 DEG C, 12h, removes the organic matter in original soil, table is compared in increase
Area；
2) sepiolite particle being calcined after cooling down is added to 0.08mol/L iron salt solutions, stirred under the conditions of 40 DEG C mixed
It is even, then under conditions of nitrogen is passed through, add ammoniacal liquor and adjust pH value of solution to 11.5, it is collectively forming precipitation；Precipitation terminates
Afterwards, dried under the conditions of 110 DEG C, cross 100 mesh sieves and obtain a kind of sepiolite particle of carried magnetic nano iron oxide；
3) it is 1 by solid-to-liquid ratio by magnetic meerschaum particle and silane coupler solution:4g/ml carries out mixing 1h, so
Gained solid is cleaned into filtering with clear water afterwards, 100 mesh sieves are crossed after drying, obtains being coupled the sepiolite particle that negative magnetic is modified.
The amount ratio that frerrous chloride and iron chloride press material in iron salt solutions is 1:2, the iron salt solutions and sepiolite are matched somebody with somebody
Than for 0.5L/g.
The water that silane coupler solution proportioning is 10%, 75% methanol, 15% silane coupler.
Silane coupler is 1,3- aminopropyl trimethoxysilanes.
Residence time of the waste water in adsorption reaction pond is 2h in S2.
It is provided with three layers of dismountable magnetization steel mesh in S3 in integrated treatment pond, the aperture of three layers of magnetization steel mesh is along current side
To be followed successively by 10,5,1mm.
Three layers of magnetization steel mesh are parallel to each other, and with water (flow) direction in 45 ° of inclinations.
The HNO that eluent in S4 is 0.01mol/L3Solution, elution time 5h.
Embodiment 5
A kind of handling process of aquaculture heavy metal in waste water copper, method and step are as follows：
S1：The SS values of breeding wastewater are made to be 20mg/L by pre-treatment；
S2：Waste water through pre-treatment enters adsorption reaction pond, the Hai Pao being modified by adding the negative magnetic of coupling into adsorption tank
Stone adsorbent heavy metal copper carries out adsorption reaction；
S3：Reacted waste water enters integrated treatment pond, will be useless by the magnetic steel mesh being provided with integrated treatment pond
Meerschaum adsorbent in water filters out, and filtered waste water reaches discharge standard, can be directly from first on integrated treatment pond
Discharge outlet is discharged；
S4：The adsorbent of enriching heavy metal copper in integrated treatment pond is handled after a period of time, integrated treatment
After waste water emptying in pond, eluent is added thereto cleaning desorption is carried out to the adsorbent of enriching heavy metal copper；
S5：After elution terminates, clear water is passed through into integrated treatment pond, and disconnecting electromagnetic steel network source makes it lose magnetic
Property, negative magnetic suck agent returns to reaction by delivery port because current scour comes off from steel mesh, with current by the elevator pump of peripheral hardware
Chi Zhong, complete recycling for adsorbent.
The preparation method step that the meerschaum adsorbent that negative magnetic is modified is coupled in S2 is as follows：
1) sepiolite original soil particle is subjected to calcination process, 150 DEG C, 12h, removes the organic matter in original soil, table is compared in increase
Area；
2) sepiolite particle being calcined after cooling down is added to 0.1mol/L iron salt solutions, stirred under the conditions of 50 DEG C mixed
It is even, then under conditions of nitrogen is passed through, add ammoniacal liquor and adjust pH value of solution to 11.5, it is collectively forming precipitation；Precipitation terminates
Afterwards, dried under the conditions of 110 DEG C, cross 100 mesh sieves and obtain a kind of sepiolite particle of carried magnetic nano iron oxide；
3) it is 1 by solid-to-liquid ratio by magnetic meerschaum particle and silane coupler solution:4g/ml carries out mixing 1h, so
Gained solid is cleaned into filtering with clear water afterwards, 100 mesh sieves are crossed after drying, obtains being coupled the sepiolite particle that negative magnetic is modified.
The amount ratio that frerrous chloride and iron chloride press material in iron salt solutions is 1:3, the iron salt solutions and sepiolite are matched somebody with somebody
Than for 0.5L/g.
The water that silane coupler solution proportioning is 10%, 75% methanol, 15% silane coupler.
Silane coupler is γ-methacryloxypropyl trimethoxy silane (KH-570).
Residence time of the waste water in adsorption reaction pond is 1h in S2.
It is provided with three layers of dismountable magnetization steel mesh in S3 in integrated treatment pond, the aperture of three layers of magnetization steel mesh is along current side
To be followed successively by 10,5,1mm.
Three layers of magnetization steel mesh are parallel to each other, and with water (flow) direction in 45 ° of inclinations.
The HNO that eluent in S4 is 0.01mol/L3Solution, elution time 5h.
Embodiment 6
A kind of handling process of aquaculture heavy metal in waste water copper, method and step are as follows：
S1：The SS values of breeding wastewater are made to be 100mg/L by pre-treatment；
S2：Waste water through pre-treatment enters adsorption reaction pond, the Hai Pao being modified by adding the negative magnetic of coupling into adsorption tank
Stone adsorbent heavy metal copper carries out adsorption reaction；
S3：Reacted waste water enters integrated treatment pond, will be useless by the magnetic steel mesh being provided with integrated treatment pond
Meerschaum adsorbent in water filters out, and filtered waste water reaches discharge standard, can be directly from first on integrated treatment pond
Discharge outlet is discharged；
S4：The adsorbent of enriching heavy metal copper in integrated treatment pond is handled after a period of time, integrated treatment
After waste water emptying in pond, eluent is added thereto cleaning desorption is carried out to the adsorbent of enriching heavy metal copper；
S5：After elution terminates, clear water is passed through into integrated treatment pond, and disconnecting electromagnetic steel network source makes it lose magnetic
Property, negative magnetic suck agent returns to reaction by delivery port because current scour comes off from steel mesh, with current by the elevator pump of peripheral hardware
Chi Zhong, complete recycling for adsorbent.
The preparation method step that the meerschaum adsorbent that negative magnetic is modified is coupled in S2 is as follows：
1) sepiolite original soil particle is subjected to calcination process, 150 DEG C, 12h, removes the organic matter in original soil, table is compared in increase
Area；
2) sepiolite particle being calcined after cooling down is added to 0.05mol/L iron salt solutions, stirred under the conditions of 30 DEG C mixed
It is even, then under conditions of nitrogen is passed through, add ammoniacal liquor and adjust pH value of solution to 11, it is collectively forming precipitation；After precipitation terminates,
Dried under the conditions of 110 DEG C, cross 100 mesh sieves and obtain a kind of sepiolite particle of carried magnetic nano iron oxide；
3) it is 1 by solid-to-liquid ratio by magnetic meerschaum particle and silane coupler solution:3g/ml carries out mixing 1h, so
Gained solid is cleaned into filtering with clear water afterwards, 100 mesh sieves are crossed after drying, obtains being coupled the sepiolite particle that negative magnetic is modified.
The amount ratio that frerrous chloride and iron chloride press material in iron salt solutions is 1:1, the iron salt solutions and sepiolite are matched somebody with somebody
Than for 0.5L/g.
The water that silane coupler solution proportioning is 10%, 75% methanol, 15% silane coupler.
Silane coupler is 1,3- aminopropyl trimethoxysilanes
Residence time of the waste water in adsorption reaction pond is 1h in S2.
It is provided with three layers of dismountable magnetization steel mesh in S3 in integrated treatment pond, the aperture of three layers of magnetization steel mesh is along current side
To be followed successively by 10,5,1mm.
Three layers of magnetization steel mesh are parallel to each other, and with water (flow) direction in 30 ° of inclinations.
The HNO that eluent in S4 is 0.01mol/L3Solution, elution time 5h.
The clearance of heavy metal in waste water copper and the rate of recovery of magnetic meerschaum of 1 each embodiment of table
| The clearance (%) of heavy metal copper | The rate of recovery (%) of magnetic meerschaum | Discharge the content (mg/L) of heavy metal copper in water | |
| Embodiment 2 | 91.7 | 92.4 | 0.81 |
| Embodiment 3 | 91.2 | 92.8 | 0.88 |
| Embodiment 4 | 92.4 | 92.1 | 0.72 |
| Embodiment 5 | 92.8 | 91.8 | 0.67 |
| Embodiment 6 | 90.3 | 93.2 | 0.95 |
As shown in Table 1, the clearance of heavy metal in waste water copper is more than 90% in each embodiment, in the waste water after processing
The content of heavy metal copper is below 1mg/L, meets the discharge standard of heavy metal in waste water content, meanwhile, magnetic meerschaum returns
Yield is more than 90%.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of handling process of aquaculture heavy metal in waste water copper, it is characterised in that method and step is as follows：
S1：The SS values for making breeding wastewater by pre-treatment are less than 100mg/L；
S2：Waste water through pre-treatment enters adsorption reaction pond, and the sepiolite being modified by adding the negative magnetic of coupling into adsorption tank is inhaled
Attached dose of heavy metal copper carries out adsorption reaction；
S3：Reacted waste water enters integrated treatment pond, by the magnetic steel mesh that is provided with integrated treatment pond by waste water
Meerschaum adsorbent filter out, filtered waste water reaches discharge standard, can be directly from the first draining on integrated treatment pond
Mouth discharge；
S4：The adsorbent of enriching heavy metal copper in integrated treatment pond is handled after a period of time, in integrated treatment pond
Waste water emptying after, thereto add eluent cleaning desorption is carried out to the adsorbent of enriching heavy metal copper；
S5：After elution terminates, clear water is passed through into integrated treatment pond, and disconnecting electromagnetic steel network source makes it lose magnetism, and bears
Magnetic suck agent is returned in reaction tank because current scour comes off from steel mesh, with current by delivery port by the elevator pump of peripheral hardware,
Complete recycling for adsorbent.
A kind of 2. handling process of aquaculture heavy metal in waste water copper according to claim 1, it is characterised in that the S2
The preparation method step for the meerschaum adsorbent that the middle negative magnetic of coupling is modified is as follows：
1) sepiolite original soil particle is subjected to calcination process, 150 DEG C, 12h, removes the organic matter in original soil, increase specific surface area
2) sepiolite particle being calcined after cooling down is added to 0.05-0.1mol/L iron salt solutions, stirred under the conditions of 30-50 DEG C
Mix, then under conditions of nitrogen is passed through, add ammoniacal liquor and adjust pH value of solution to 11-12, it is collectively forming precipitation；Precipitation knot
Shu Hou, dried under the conditions of 110 DEG C, cross 100 mesh sieves and obtain a kind of sepiolite particle of carried magnetic nano iron oxide.
3) it is 1 by solid-to-liquid ratio by magnetic meerschaum particle and silane coupler solution：(3-5) g/ml carries out mixing 1h, so
Gained solid is cleaned into filtering with clear water afterwards, 100 mesh sieves are crossed after drying, obtains being coupled the sepiolite particle that negative magnetic is modified.
A kind of 3. handling process of aquaculture heavy metal in waste water copper according to claim 2, it is characterised in that the iron
The amount ratio that frerrous chloride and iron chloride press material in salting liquid is 1:(1-3), the proportioning of the iron salt solutions and sepiolite are
0.5L/g。
A kind of 4. handling process of aquaculture heavy metal in waste water copper according to claim 2, it is characterised in that the silicon
The water, 75% methanol, 15% silane coupler that alkane coupling agent solution proportioning is 10%.
A kind of 5. handling process of aquaculture heavy metal in waste water copper according to claim 2 or 4, it is characterised in that institute
It is 1,3- aminopropyl trimethoxysilanes or γ-methacryloxypropyl trimethoxy silane (KH- to state silane coupler
570)。
A kind of 6. handling process of aquaculture heavy metal in waste water copper according to claim 1, it is characterised in that the S2
Residence time of the middle waste water in adsorption reaction pond is 1-3h.
A kind of 7. handling process of aquaculture heavy metal in waste water copper according to claim 1, it is characterised in that the S3
Three layers of dismountable magnetization steel mesh are provided with middle integrated treatment pond, the aperture of three layers of magnetization steel mesh is followed successively by along water (flow) direction
10、5、1mm。
8. the handling process of a kind of aquaculture heavy metal in waste water copper according to claim 7, it is characterised in that described
Three layers of magnetization steel mesh are parallel to each other, and with water (flow) direction in 30-60 ° of inclination.
A kind of 9. handling process of aquaculture heavy metal in waste water copper according to claim 1, it is characterised in that the S4
In eluent be 0.01mol/L HNO3Solution, elution time 5h.
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| CN111054301A (en) * | 2019-12-19 | 2020-04-24 | 北京矿冶科技集团有限公司 | Remediation method of heavy metal polluted surface water |
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