CN208087379U - Silica removal device system in water - Google Patents

Silica removal device system in water Download PDF

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Publication number
CN208087379U
CN208087379U CN201820323700.8U CN201820323700U CN208087379U CN 208087379 U CN208087379 U CN 208087379U CN 201820323700 U CN201820323700 U CN 201820323700U CN 208087379 U CN208087379 U CN 208087379U
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water
silica
reaction unit
electric flocculation
calcium
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CN201820323700.8U
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欧群飞
徐建洪
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Chengdu Feichuang Technology Co Ltd
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Chengdu Feichuang Technology Co Ltd
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Abstract

The utility model discloses silica removal device systems in water, including be sequentially communicated plus oxygenation pretreatment device, electric flocculation reaction unit, air-floating apparatus, film filter and clear water collection device;Described plus oxygenation pretreatment device for receiving pending waste water, and adds alkali to adjust, makes silica and calcium, magnesium addition colloidization in water;The electric flocculation reaction unit, including its anode plate of electrocoagulation electrode plate are aluminium sheet, iron plate or ferro-aluminum mixing pole plate, generate aluminium hydroxide by electrolysis or iron hydroxide adsorbs and precipitate the silica formed after alkaline cleaning and calcium, magnesium addition colloidal solid;The air-floating apparatus is difficult to the silica dioxide granule precipitated and impurity particle for going in water removal;The film filter is handled for depth-type filtration;The clear water collection device, for collecting treated clear water.The flexible strong applicability of the apparatus system, anti impulsion load are high, clear water water quality and can improve its greatly after improvement processing and recycle value.

Description

Silica removal device system in water
Technical field
The utility model is related to a kind of water treatment fields, more particularly to silica removal device system in water.
Background technology
With the surge of social progress, industrial development and population, problem of environmental pollution constantly aggravates, especially water resource Pollution so that the available freshwater resources of the mankind are fewer and fewer.Scientist is estimated to 2025, will have 2/3 people in the world Mouth faces serious shortage of water resources problem, or even by the insufficient danger of living water.Shortage in order to solve water resource is asked Topic, for the overall strategy of water resource, countries in the world have all turned to comprehensive, sustainable water resource and have utilized.How to improve Utilization ratio of water and the recycling efficiency of water have become one vital task of all trades and professions.
In industrial water, many industries are all limited by silica in water, from the maximum cooling system of water consumption Content to silica in high-precision electronics industry and the draining of reverse osmosis concentrated water generally reaches 40-100mg/L, Want the zero-emission for reaching waste water and reuse, it is necessary to which depth removal is carried out to the silica in waste water.
Currently, for this kind of wastewater treatment, both at home and abroad there are no the example of recycling, existing method includes that coagulation removes Silicon, chemical flocculation except silicon, amberplex except silicon etc. single minimizing technology.Wherein, traditional chemical flocculation easily causes Secondary pollution, be unable to reach depth removal silica purpose, ion exchange membrane processing it is not only expensive and also into Water water quality requirement is higher.Also, above-mentioned single treatment method is because of silica and other impurities in water in practical water treatment procedure Changes of contents is indefinite, causes silica removal device operating load big, and anti impulsion load ability is weak, leads to final silica Removal effect, which is paid no attention to, to think over a problem.
Utility model content
For the above-mentioned deficiency in the presence of the prior art, silica removal device in a kind of water of the utility model offer System, coordinated between each device in the apparatus system, flexible strong applicability, anti impulsion load is high, can realize in water Silica thoroughly, depth removal effect, and effectively remove calcium in water, magnesium addition, clear water water quality and carried after very big improvement processing High its recycles value.
To achieve the above object, the utility model provides following technical scheme:
Silica removal device system in water, including be sequentially communicated plus oxygenation pretreatment device, electric flocculation reaction unit, Air-floating apparatus, film filter and clear water collection device;
Described plus oxygenation pretreatment device, for receiving pending waste water, and alkaline reagent is added into waste water, makes two in water Silica and calcium, magnesium addition colloidization;
The electric flocculation reaction unit, including electrocoagulation electrode plate, wherein anode plate are aluminium sheet, iron plate or ferro-aluminum mixing pole Plate, anode plate can generate aluminium hydroxide or iron hydroxide floccule body in electrolytic process;The electric flocculation reaction unit and institute The connection of alkaline cleaning device is stated, the waste water after oxygenation pretreatment is added to enter electric flocculation reaction unit, the dioxy formed after alkaline cleaning The aluminium hydroxide or iron hydroxide floccule body that SiClx and calcium, magnesium addition colloidal solid are generated by electrolysis adsorb, and co-precipitation;
The air-floating apparatus, for the removal of the subtle silica dioxide granule and other impurity particles that precipitate will to be difficult in water Recycling, connect with the electric flocculation reaction unit;
The film filter connects for handling the depth-type filtration of silica impurity in water with the air-floating apparatus It connects;
The clear water collection device is connect for collecting treated clear water with the film filter.
According to above-mentioned technical proposal, the utility model will plus oxygenation pretreatment device, electric flocculation reaction unit, air-floating apparatus and Film filter, clear water collection device are sequentially connected in series connection, form silica removal device system in a set of completely new water.According to According to apparatus system described in the utility model, first pending waste water is introduced into and is added in oxygenation pretreatment device, it, will by adding oxygenation pretreatment Most of silica and calcium, magnesium addition colloidization in waste water, while increasing hydroxyl content in pending waste water.Alkali will be added again Pretreated waste water, high using hydroxyl content in waste liquid after alkaline cleaning, silica and calcium, magnesium addition colloidal solid are more The characteristics of, the generation of aluminium hydroxide or iron hydroxide floccule body in electrolytic process is effectively facilitated, electric flocculation reaction unit is delivered to In, the electric flocculation reaction unit includes electrocoagulation electrode plate, wherein aluminium pole, iron plate or ferro-aluminum mixing pole plate plate are made For anode plate, the aluminium hydroxide generated in electrolytic process using the anode plate or iron hydroxide floccule body to silica and The adsorption precipitation effect of calcium, magnesium addition colloidal solid is greatly improved to most of silica in waste water and calcium, magnesium addition flocculation Precipitate separating effect.Waste water after the precipitation separation of electric flocculation reaction unit, then enter in air-floating apparatus along conveyance conduit and carry out Air supporting clean, in air supporting dedoping step, on the one hand can by waste water can not flocculation sediment subtle silica dioxide granule and its His impurity particle carries out Bubble-floating Method removal;On the other hand, it during the electric flocculation reacts precipitation process, has not enough time to sink Silica and calcium, the magnesium addition colloidal solid in shallow lake can further be precipitated in air-floating apparatus bottom.Subtle dioxy is removed through air supporting Waste water after SiClx and other impurity particles, then in film filter, handled by depth-type filtration, realize the recycling to waste water Processing.Single unit system system reasonable design links up, and depth removal effect can not only be played to silica in water, and can be effective Calcium, magnesium addition in water are removed, clear water water quality after improvement processing, clear water recycle is worth after raising processing.And whole device System to silica in water and other impurities removal precision successively increase, be used in conjunction with each other, can flexible adaptation in difference two The wastewater treatment of the impurity contents such as silica, anti impulsion load ability is strong, has preferable prospects for commercial application.
Preferably, described plus be provided with delivery pump, the conveying between oxygenation pretreatment device and electric flocculation reaction unit Pump is for will add the silica formed in oxygenation pretreatment device and calcium, magnesium addition colloidal solid waste water to be pumped to electric flocculation reaction In device.
Preferably, the bottom of the electric flocculation reaction unit is provided with the first blow-off pipe, first blow-off pipe and dirt Mud thickener is connected, for handling electric flocculation bottom of device silica and calcium, magnesium addition flocculation sediment discharge.
Preferably, the bottom of the air-floating apparatus is provided with the second blow-off pipe, second blow-off pipe and sludge condensation Pond is connected, for air-floating apparatus bottom silicon dioxide silicon and calcium, magnesium addition flocculation sediment discharge processing.
Preferably, backwashing pump is provided between the film filter and clear water collection device, the backwashing pump is for inhaling The clear water in clear water collection device is taken to backwash film filter.
Preferably, the film filter includes Aeration fan, for carrying out aeration cleaning to film filter.
Preferably, mating in described plus oxygenation pretreatment device to be provided with agitating device, for being stirred, promote in waste water The impurity colloidal solid such as silica and calcium, magnesium.
Compared with prior art, the beneficial effects of the utility model:
1, for existing silica other removal devices, silica removes in water described in the utility model Apparatus system can be flexibly applied to the wastewater treatment of different dioxide-containing silicas, and anti impulsion load ability is strong, have preferable Prospects for commercial application.
2, silica removal device system in water described in the utility model, close coordinated between each device, can The colloidal solid formed after electric flocculation reaction absorption alkaline cleaning, and co-precipitation are efficiently used, later stage lock out operation is convenient for, it is real Now most of calcium, magnesium addition and silica in waste water are efficiently separated;Further combine air supporting removal of impurities, membrane filtration contour Precision physical impurity-removing method, to carry out depth removal, clear water after very big improvement processing to silica in water and other impurities Water quality condition, and improve its actual recovered reason utility value.
Description of the drawings:
Fig. 1 is silica removal device system structure schematic block diagram in the water described in the embodiment of the present invention 1.
In figure, A- adds oxygenation pretreatment device;B- electric flocculation reaction units;C- air-floating apparatus;D- film filters;E- clear water Collection device;F- sludge concentration tanks;1- delivery pumps;2- backwashing pumps;3- control valves;The second blow-off pipes of 4-;The first blow-off pipes of 5-; 6- connecting pipes.
Specific implementation mode
The utility model is described in further detail with reference to test example and specific implementation mode.But it should not be by this The range for being interpreted as the above-mentioned theme of the utility model is only limitted to embodiment below, all to be realized based on the utility model content Technology belongs to the scope of the utility model.
Embodiment 1
As shown in Figure 1, silica removal device system in a kind of water of the utility model offer, including what is be sequentially communicated add Oxygenation pretreatment device (A), electric flocculation reaction unit (B), air-floating apparatus (C), film filter (D) and clear water collection device (E);
Described plus oxygenation pretreatment device (A), for receiving pending waste water, and alkaline reagent is added into waste water, makes water Middle silica and calcium, magnesium addition colloidization;
The electric flocculation reaction unit (B), the electric flocculation reaction unit (B) includes electrocoagulation electrode plate, Anodic Plate is aluminium sheet, iron plate or ferro-aluminum mixing pole plate, and anode plate can generate aluminium hydroxide or iron hydroxide flocculation in electrolytic process Body;The electric flocculation reaction unit (B) and the alkaline cleaning device (A) connection, add the waste water after oxygenation pretreatment to enter electric wadding Reaction unit (B) is coagulated, the aluminium hydroxide that silica and calcium, the magnesium addition colloidal solid formed after alkaline cleaning is generated by electrolysis Floccule body adsorbs, and co-precipitation;
The air-floating apparatus (C), for the subtle silica dioxide granule precipitated and other impurity particles will to be difficult in water Removal, connect with the electric flocculation reaction unit (B);
The film filter (D), for handling the depth-type filtration of silica impurity in water, with the air-floating apparatus (C) it connects;
The clear water collection device (E) connect for collecting treated clear water with the film filter (D).
Further, described plus delivery pump (1), institute are provided between oxygenation pretreatment device (A) and electric flocculation reaction unit (B) Delivery pump (1) is stated for the silica formed in oxygenation pretreatment device and calcium, magnesium addition colloidal solid will to be added to be pumped to electric wadding In solidifying reaction unit (B).
Further, the bottom of the electric flocculation reaction unit (B) is provided with the first blow-off pipe (5), first blowdown Pipe (5) is connected with sludge concentration tank (F), for arranging electric flocculation device (B) bottom silicon dioxide silicon and calcium, magnesium addition flocculation sediment Go out processing.
Further, the bottom of the air-floating apparatus (C) is provided with the second blow-off pipe (4), second blow-off pipe (4) with Sludge concentration tank (F) is connected, the discharge processing for air-floating apparatus (C) bottom silicon dioxide silicon and calcium, magnesium addition flocculation sediment.
Further, backwashing pump (2), the backwash are provided between the film filter (D) and clear water collection device (E) Clear water of the pump (2) in pumping clear water collection device (E) backwashes film filter (D).
Further, the film filter (D) includes Aeration fan, clear for film filter (D) be aerated It washes.
Further, mating in described plus oxygenation pretreatment device (A) to be provided with agitating device, for being stirred, promote useless The impurity colloidal solid such as silica and calcium, magnesium in water.
According to silica removal device system in above-mentioned water, first pending waste water is introduced and adds oxygenation pretreatment device (A) In, by adding oxygenation pretreatment, by most of silica and calcium, magnesium addition colloidization in waste water, while increasing pending waste water Middle hydroxyl content.It will add the waste water after oxygenation pretreatment again, utilize hydroxyl content in waste liquid after alkaline cleaning high, silica Feature with more than calcium, magnesium addition colloidal solid, effectively facilitates the generation of aluminium hydroxide floccule body in electrolytic process, through connecting pipe (6) it is pumped in electric flocculation reaction unit (B) by delivery pump (1), the electric flocculation reaction unit (B) includes electrocoagulation electrode Plate, wherein select aluminum substrate, iron pole plate or ferro-aluminum mixing pole plate as anode plate, produced in electrolytic process using the anode plate Raw aluminium hydroxide or iron hydroxide floccule body acts on the adsorption precipitation of silica and calcium, magnesium addition colloidal solid, greatly It improves and most of silica and calcium, magnesium addition flocculation sediment separating effect, the flocculation sediment isolated in waste water is set The first blow-off line (5) in the bottom electric flocculation reaction unit (B) is collected into sludge concentration tank (F).It reacts and fills through electric flocculation The waste water after the separation of (B) precipitation is set, then enters along connecting pipe (6) and carries out air supporting removal of impurities in air-floating apparatus (C), is removed in air supporting During miscellaneous, on the one hand can by waste water can not flocculation sediment subtle silica dioxide granule and other impurity particles, into promoting the circulation of qi Float glass process removes;On the other hand, the electric flocculation react precipitation process during, the silica of incomplete flocculation sediment and Calcium, magnesium addition colloidal solid can be in the further flocculation sediments in the bottom air-floating apparatus (C), and are set in the bottom air-floating apparatus (C) The second blow-off line (4) be collected into sludge concentration tank (F).After air supporting removes subtle silica and other impurity particles Waste water, then in film filter (D), handled through depth-type filtration, realize the recovery processing to waste water.Treated clear water into Enter storage in clear water collection device (E).And by control setting the film filter (D) and clear water collection device (E) it Between backwashing pump (2), realize and the controllable type of film filter backwashed.

Claims (7)

1. silica removal device system in water, which is characterized in that including be sequentially communicated plus oxygenation pretreatment device, electric flocculation Reaction unit, air-floating apparatus, film filter and clear water collection device;
Described plus oxygenation pretreatment device, for receiving pending waste water, and alkaline reagent is added into waste water, makes titanium dioxide in water Silicon and calcium, magnesium addition colloidization;
The electric flocculation reaction unit, the electric flocculation reaction unit include electrocoagulation electrode plate, and wherein anode plate is aluminium sheet, iron Plate or ferro-aluminum mixing pole plate, anode plate can generate aluminium hydroxide or iron hydroxide floccule body in electrolytic process;The electricity wadding Solidifying reaction unit is connected with the alkaline cleaning device, is added the waste water after oxygenation pretreatment to enter electric flocculation reaction unit, is added at alkali The aluminium hydroxide or iron hydroxide floccule body that silica and calcium, the magnesium addition colloidal solid formed after reason is generated by electrolysis are inhaled It is attached, and co-precipitation;
The air-floating apparatus, for returning the removal for being difficult to the subtle silica dioxide granule and other impurity particles that precipitate in water It receives, is connect with the electric flocculation reaction unit;
The film filter is connect for handling the depth-type filtration of silica impurity in water with the air-floating apparatus;
The clear water collection device is connect for collecting treated clear water with the film filter.
2. silica removal device system in water according to claim 1, which is characterized in that in described plus oxygenation pretreatment Delivery pump is provided between device and electric flocculation reaction unit, the delivery pump will be for that will add two formed in oxygenation pretreatment device Silica and calcium, magnesium addition colloidal solid are pumped in electric flocculation reaction unit.
3. silica removal device system in water according to claim 1, which is characterized in that reacted in the electric flocculation The bottom of device is provided with the first blow-off pipe, and first blow-off pipe is connected with sludge concentration tank, is used for electric flocculation device bottom Portion's silica and calcium, magnesium addition flocculation sediment discharge processing.
4. silica removal device system in water according to claim 1 or 3, which is characterized in that filled in the air supporting The bottom set is provided with the second blow-off pipe, and second blow-off pipe is connected with sludge concentration tank, is used for air-floating apparatus bottom dioxy The discharge processing of SiClx and calcium, magnesium addition flocculation sediment.
5. silica removal device system in water according to claim 1, which is characterized in that the film filter and Backwashing pump is provided between clear water collection device, the clear water that the backwashing pump is used in pumping clear water collection device fills membrane filtration It sets and is backwashed.
6. silica removal device system in water according to claim 1, which is characterized in that the film filter packet Aeration fan is included, for carrying out aeration cleaning to film filter.
7. silica removal device system in water according to claim 1, which is characterized in that described plus oxygenation pretreatment dress It is mating in setting to be provided with agitating device, for being stirred.
CN201820323700.8U 2018-03-09 2018-03-09 Silica removal device system in water Active CN208087379U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110182994A (en) * 2019-05-30 2019-08-30 国家能源投资集团有限责任公司 A kind of silicon removing method of coal-water slurry gasification efflux wastewater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110182994A (en) * 2019-05-30 2019-08-30 国家能源投资集团有限责任公司 A kind of silicon removing method of coal-water slurry gasification efflux wastewater

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