CN208022847U - A kind of total system removing toxic heavy metal in water removal - Google Patents
A kind of total system removing toxic heavy metal in water removal Download PDFInfo
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- CN208022847U CN208022847U CN201820149921.8U CN201820149921U CN208022847U CN 208022847 U CN208022847 U CN 208022847U CN 201820149921 U CN201820149921 U CN 201820149921U CN 208022847 U CN208022847 U CN 208022847U
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Abstract
The utility model discloses a kind of total system removing toxic heavy metal in water removal, which includes：Piping filter, magnetic flocculation pond, magnetic separating device I carry magnetic biological adsorption pond, magnetic separating device II, discharge bay, pH on-Line Monitor Devices, magnetic sludge-tank, magnetic stripper, excess sludge pond, dewaterer, administration device and self-con-tained unit.COD can be improved while improving heavy metal pollution removal in the utility model, and the removal rate of SS, TP achieve the purpose that collaboration rapidly and efficiently integrated treatment pollutant；Simultaneously according to the features of pollution of heavy metal in water, magnetic suck agent is carried by replacement, realizes the removal of various heavy；Occupation area of equipment is small, and the reaction time is short, and safety efficiently, quickly removes removing heavy metals, can be fabricated to emergency processing equipment.
Description
Technical field
The utility model is related to water-treatment technology field more particularly to a kind of total systems containing chromium or containing arsenic.
Background technology
Chromium and arsenic strong toxicity are easily absorbed by the body and accumulate in vivo carcinogenic, in the environment, cannot be decomposed by the microorganisms.
The pollution of chromium and arsenic is particularly acute in water, therefore goes chromium and the specific important meaning of arsenic in water removal.
Chromium mainly exists in the form of two kinds of stable oxidation states of Cr (IV) and Cr (III), the toxicity ratio Cr of usual Cr (IV)
(III) 100 times high, general so-called pollution of chromium be primarily referred to as it is hexavalent chromium polluted, and be mainly derived from cosmetic material inferior,
Leather preparation, metal parts chromium plating part, commercial pigments and tanning, rubber and ceramic raw material etc..Removal industrial wastewater at present
In the technique containing chromium it is very much, wherein the electronation precipitation method are widely used because of economical and effective.
Arsenic is generally present in pentavalent arsenic (As (V)) and trivalent arsenic (As (III)) in water body.Studies have shown that As (III)
Toxicity is 60 times or more of As (V).Method for arsenic removal mainly have coagulation, precipitation, absorption, ion exchange, biodegradation,
Reverse osmosis and electrodialysis etc..Wherein, have due to removing the method economy of arsenic in water with the oxide adsorbent and coagulating sedimentation of iron
Effect is widely used.
But these techniques have following defect：
1) method removed only for chromium or arsenic is low to the removal efficiency of other pollution factors；
2) processing time is longer, to emergency event, cannot cope in time；
3) sludge yield is big, is also easy to produce secondary pollution.
The comparison of ingredients of waste water due to general industry containing chromium or containing arsenic is complicated, other than containing toxic metals, also contains it
Its pollution factor, such as organic matter, suspended matter, contain phosphor contaminant, these pollutants are generally coexisted with toxic heavy metal and waste water
In, and influence the removal effect of toxic heavy metal.Therefore the processing containing chromium or arsenic-containing waste water should consider this in industrial wastewater
A little pollution factors combine the effect that various techniques can be only achieved efficient comprehensive treatment.It is quick therefore it is desirable to develop a kind of synthesis
Suitable for a variety of toxic heavy metal waste water treatment process.
Utility model content
In view of this, the purpose of this utility model is to provide one kind removing toxic heavy metal total system in water removal,
Magnetic flocculation, load magnetic suck, magnetic separating device and the integrated application of pH on-Line Monitor Devices are greatly improved the comprehensive of pollutant by the system
Close removal effect, while not influencing heavy metals removal, also can be improved removal COD (COD), SS (suspended matter) and
The removal rate of TP (total phosphorus).
In order to achieve the above objectives, the utility model provides the following technical solutions：
A kind of total system removing toxic heavy metal in water removal, the processing system include：Piping filter (1), magnetic
Flocculation basin (2), magnetic separating device I (3) carry magnetic biological adsorption pond (4), and magnetic separating device II (5), discharge bay (6), pH is online
Monitoring device (16), magnetic sludge-tank (7), magnetic stripper (9), excess sludge pond (8), dewaterer, administration device (15) and automatic control
Device；
The piping filter (1), magnetic flocculation pond (2), magnetic separating device I (3) are discharged side, carry magnetic biological adsorption pond
(4), magnetic separating device II (5) is discharged side, and discharge bay is sequentially connected between (6) by pipeline；The magnetic separating device I
(3) side for going out pollutant (magnetic sludge) is connect with magnetic sludge-tank (7) by pipeline；The magnetic sludge-tank (7) and excess sludge
Pond (8) is connected by partition board；The side that the excess sludge pond (8) goes out sludge with magnetic stripper (9) is connect by pipeline；Magnetic
Separator II (5) goes out the side of pollutant (carrying magnetic biological waste) and excess sludge pond (8), dewaterer are connected successively by pipeline
It connects；Top of magnetic stripper (9) setting in magnetic flocculation pond (2)；PH on-Line Monitor Devices (16) setting is carrying
Between magnetic biological adsorption pond (4) and discharge bay (6).
Further, the administration device (15) includes AlSnSi alloy (10), flocculation aid (11), carries magnetic biological adsorption agent
(13), sour (12) and alkali (14) throwing device；The AlSnSi alloy, flocculation aid, bronsted lowry acids and bases bronsted lowry are liquid throwing device, are passed through
Magnetic flocculation pond (2) are added in metering pump and pipeline connection；The load magnetic biological adsorption agent (13) is solid throwing device, setting
In the top for carrying magnetic biological adsorption pond (4).
Further, the magnetic flocculation pond (2) is divided into two lattice, and the first lattice are for adding AlSnSi alloy, and the second lattice are for throwing
Add flocculation aid and magnetic kind；It is intake enters the second lattice using overflow manner from the first lattice, enters Magneto separate dress by pipeline later
Set I (3).
Further, the magnetic separating device I (3) is made of superconducting magnet and filter, superconducting magnet by low temperature Nb-Ti and
Nb3Sn makes, and filter filling has ferromagnetic wire；The magnetic separating device I (3) by cleaning steel sheet one by one
The mode of net realizes the continuous operation of magnet；The water outlet of the magnetic flocculation pond (2) enters magnetic separating device I (3), passes through abdomen first
Ferromagnetic filter built in chamber magnetic field, ferromagnetism pollutant are obtained by rapid flutter on filter, and water is flowed out from side after purification, is entered
It carries magnetic biological adsorption pond (4)；The filter for being detached from magnetic field realizes the continuous operation of magnet by way of cleaning one by one；After flushing
Sewage sludge storage containing magnetic in magnetic sludge-tank (7), object containing electromagnetic pollution is crushed by stirring, then passes through magnetic stripper (9) recycling magnetic
Kind arrives magnetic flocculation pond (2), to recycle, remaining mud discharging to excess sludge pond (8).
Further, load magnetic biological adsorption pond (4)：It is divided into two lattice, the first lattice are for adding acid, and the second lattice are for adding
Carry magnetic biological adsorption agent；It is intake enters the second lattice using overflow manner from the first lattice, enters Magneto separate dress by pipeline later
Set II (5)；The magnetic separating device II (5) is discharged as magnetic separating device I (3) method of operation, after purification enters discharge bay
(6), it carries magnetic biological pollutant and is discharged into excess sludge pond (8).
Further, the magnetic flocculation pond (2), load magnetic biological adsorption pond (4) and magnetic sludge-tank (7) are equipped with blender.
Further, in the administration device (15), AlSnSi alloy, flocculation aid, bronsted lowry acids and bases bronsted lowry administration device are all made of liquid
Body mode adds, and is equipped with metering pump and controls dosage；Wherein, bronsted lowry acids and bases bronsted lowry, which adds to feed back to add according to real-time monitoring result, is
System controls dosage；Acid, which is added to, to be carried in (4) first lattice of magnetic biological adsorption pond, and the first lattice can be according to removal in the adsorption tank
Heavy metal feature selects acid adding or is not added with；If removing chromium, acid adding adds hydroxyl polycarboxylic acid and is selected from citric acid and tartaric acid
In it is one or more, be stirred to react 1min, according to online pH monitor feed back, make its PH be less than 3 or so；Alkali is added to discharge bay
(6), its pH is adjusted to neutrality left and right；The load magnetic biological adsorption agent (13) places dispensing using powder chemicals feeder, is positioned over load
Magnetic biological adsorption pond top.
Further, the self-con-tained unit includes PLC, software, power supply and display screen；The blender, AlSnSi alloy,
Flocculation aid, bronsted lowry acids and bases bronsted lowry administration device carry magnetic biological adsorption agent (13) throwing device, pH on-Line Monitor Devices (16) blender, magnetic
Stripper (9), magnetic separating device (3) are connect with self-con-tained unit.
Further, the magnetic sludge-tank (7), excess sludge pond (8) bottom are respectively arranged with blow valve；The magnetic stripper (9)
Dredge pump is housed on middle pipeline；The excess sludge pond (8) enters dewaterer intermediate conduit and dredge pump is housed.
The beneficial effects of the utility model are：
The characteristics of the utility model is according to industrial wastewater toxic heavy metal, specific aim add different load magnetic biomaterials,
Quick removal for various heavy.While efficiently removing removing heavy metals, the removal effect of COD, SS and TP also can be improved.
The system utilizes flocculation-biological adsorption principle, in combination with domestic and international magnetic separation technique, by magnetic flocculation-magnetic bio absorption-pH
On-Line Monitor Device-magnetic separating device use in conjunction, greatly improved the removal effect of heavy metal.Do not influencing heavy metals removal
While, it also can remove COD, SS and TP.By taking heavy metal chromium as an example, because chromium in acid condition, has preferable removal effect；
And the optimal pH for removing COD, SS and TP is flocculated between 6-8, therefore pH is combined to monitor the mesh that can reach benchmark control in real time
, in combination with magnetic separating device, achieve the purpose that quickly to remove.In addition it is biomaterial to carry magnetic biological adsorption agent, will not band
Carry out secondary pollution.Therefore the system has safety, efficiently, quickly removes industrial chromium-containing waste water feature.It can also be fabricated to and answer simultaneously
Anxious processing equipment.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantageous effect clearer, the utility model provides as follows
Attached drawing illustrates：
Fig. 1 is the schematic device of the utility model processing system.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
As shown in Figure 1, a kind of total system removing toxic heavy metal in water removal, which includes piping filter 1,
Magnetic flocculation pond 2, magnetic separating device I 3 carry magnetic biological adsorption pond 4, magnetic separating device II 5, discharge bay 6, magnetic sludge-tank 7, remaining dirt
Mud sump 8, magnetic stripper 9, AlSnSi alloy (such as PAC) dispensing 10, flocculation aid (such as PAM) dispensing 11, acid adds 12, carries magnetic life
Object adsorbent adds 13, and alkali adds 14, and administration device 15, pH on-Line Monitor Devices 16, magnetic kind recycling 17, dewaterer and automatic control fill
It sets.
The water quality characteristics that the utility model is directed to are as follows：COD biodegradabilities are poor and suspension pollutant accounts for 70% or more, have
Malicious heavy metal contaminants are mainly Cr VI or arsenic.
Raw water enters piping filter 1 first, particulate contaminant is removed, subsequently into magnetic flocculation pond 2.
1) magnetic flocculation pond 2：It is divided into two lattice, waste water first flows into the first lattice, and flocculant AlSnSi alloy 10 is added in the first lattice,
It is stirred to react 1-2 minutes, secondly enters the second lattice and flocculation aid 11 is added, magnetic kind 17 stirs 1-2min.AlSnSi alloy and help it is solidifying
The dosage of agent considers dosage according to the concentration of COD, SS and TP.The dosage of wherein AlSnSi alloy is usually
The dosage of 4ppm, flocculation aid are 2ppm, and magnetic kind dosage is 1g/L, granularity 80-100um.
2) magnetic separating device I 3：Water outlet after flocculation basin reacts enters magnetic separating device I 3, equipment Jiang Shui and magnetic
Sludge is rapidly separated, and water outlet, which enters, carries magnetic biological adsorption pond 4.Magnetic sludge enters magnetic sludge-tank 7, and then entering magnetic by pump removes
Device 9 detaches magnetic kind and sludge, and magnetic kind is recyclable to be added into magnetic flocculation reaction tank 2, and excess sludge is discharged into excess sludge pond 8 can
Dehydration.
3) magnetic biological adsorption pond 4 is carried：The water outlet of magnetic separating device I 3, which enters, carries magnetic biological adsorption pond 4, the in the adsorption tank
One lattice can select acid adding or be not added with according to the heavy metal feature of removal.If acid adding, add hydroxyl polycarboxylic acid be selected from citric acid and
One or more 12 in tartaric acid, it is stirred to react 1min, is monitored and is fed back according to online pH, pH is adjusted and is less than 3 or so.Exist simultaneously
It is added in second lattice of pond and carries magnetic biological adsorption agent 13, including carry magnetic maize straw, carry the agricultural wastes magnetic kinds such as magnetic walnut kernel,
It is 1-2h to be stirred to react the time.It is 100um or so to carry magnetic suck agent granularity.If not acid adding, is added in direct second lattice and carry magnetic life
Object adsorbent 13.
4) magnetic separating device II 5：It carries magnetic biological adsorption reaction tank 4 and is discharged and enter magnetic separating device II 5, detach water and carry magnetic
Biological pollutant, principle is the same as magnetic separating device I 3.Water outlet enters discharge bay 6.It carries magnetic biological pollutant and enters excess sludge pond 8,
With compression processing together with excess sludge.
5) discharge bay 6：It is divided into two lattice by the way that baffle discharge bay is arranged, front end is that neutralization pond adds alkali 14, is stirred to react
1min is adjusted to neutrality (if acid adding).Finally setting effluent weir is discharged.
6) pH on-Line Monitor Devices 16：The pH of biological adsorption pond acidity and water outlet is adjusted, and adds bronsted lowry acids and bases bronsted lowry.According to removal
The characteristics of heavy metal, may choose whether to open the system.If removing Cr VI, this system is opened；If going arsenic removal, it is not required to open.
7) magnetic kind recycling 17：Magnetic kind is magnetic kind well known to those skilled in the art, such as magnetic iron ore, modified magnetic kind,
Have no special limitation.The characteristics of magnetic biological adsorption agent 13 is according to heavy metal is carried, different adsorbents is added.If removing sexavalence
Chromium can be load magnetic maize straw modified, carry magnetic walnut kernel etc., can be load magnetic spent grains modified if going arsenic removal.
8) magnetic separating device I 3 and II 5 is made of superconducting magnet and filter, superconducting magnet can by low temperature Nb-Ti and
Nb3Sn makes, and filter is fillable to have ferromagnetic wire.Magnet is realized by way of cleaning sheet steel mesh one by one
Continuous operation.
9) magnetic stripper 9：It can be the magnetic drum of rotation.For detaching magnetic sludge, recycling magnetic kind is added to magnetic flocculation pond respectively.
In order to further illustrate this system, chromium is contained to a kind of industrial wastewater provided by the utility model with reference to embodiments
Sewerage is described in detail.
Embodiment 1
By taking day output is 100 tons of industrial wastewater containing chromium as an example, hexavalent chromium concentration is 4.2mg/L in certain industrial wastewater,
COD 500 mg/L, SS200mg/L, TP 5.5mg/L.After industrial wastewater enters piping filter, into magnetic flocculation pond, magnetic is carried
100 AlSnSi alloys, flocculation aid 2ppm are added, 100 mesh of magnetic kind is stirred to react 1-2min, and water outlet enters magnetic separating device 1, goes out
Water goes successively to biological adsorption pond, and pH value is adjusted to less than 3.0 with citric acid, 2g/L is added and obtains modified load magnetic corn stalk
Stalk 100um, after reacting 2h, into superconduction separator 2.Water outlet is adjusted to neutrality with alkali.Finally Cr VI is a concentration of
0.46mg/L, COD100mg/L, SS20mg/L, TP 0.3mg/L.Reach《Integrated wastewater discharge standard》.Magnetic stripper recycles
Magnetic kind recycles.Excess sludge and load magnetic waste enter sludge dewatering equipment compression processing.
Finally illustrate, preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can in the form and details make it various changes, without departing from the utility model claims book institute
The range of restriction.
Claims (8)
1. a kind of total system removing toxic heavy metal in water removal, which is characterized in that the processing system includes：Filter pipeline
Device (1), magnetic flocculation pond (2), magnetic separating device I (3) carry magnetic biological adsorption pond (4), magnetic separating device II (5), discharge bay (6),
PH on-Line Monitor Devices (16), magnetic sludge-tank (7), magnetic stripper (9), excess sludge pond (8), dewaterer, administration device (15)；
The piping filter (1), magnetic separating device I (3), carries magnetic biological adsorption pond (4), magnetic separating device at magnetic flocculation pond (2)
It is sequentially connected by pipeline between II (5) and discharge bay (6), water outlet and the load magnetic biological adsorption of the magnetic separating device I (3)
The water inlet in pond (4) connects, and the water outlet of the magnetic separating device II (5) is connect with the water inlet of discharge bay (6)；The magnetic
The side that separator I (3) goes out pollutant is connect with magnetic sludge-tank (7) by pipeline；The magnetic sludge-tank (7) and excess sludge
Pond (8) is connected by partition board；The side that the excess sludge pond (8) goes out sludge with magnetic stripper (9) is connect by pipeline；Magnetic
Separator II (5) goes out side and the excess sludge pond (8) of pollutant, and dewaterer is sequentially connected by pipeline；The magnetic stripping
It is arranged in the top of magnetic flocculation pond (2) from device (9)；PH on-Line Monitor Devices (16) setting is carrying magnetic biological adsorption pond
(4) between discharge bay (6).
2. a kind of total system removing toxic heavy metal in water removal according to claim 1, which is characterized in that described
Administration device (15) include AlSnSi alloy (10), flocculation aid (11), carry magnetic biological adsorption agent (13), sour (12) and alkali (14)
Throwing device；The AlSnSi alloy, flocculation aid, bronsted lowry acids and bases bronsted lowry are liquid throwing device, by metering pump and pipeline connection plus
Enter magnetic flocculation pond (2)；The load magnetic biological adsorption agent (13) is solid throwing device, and setting is carrying magnetic biological adsorption pond (4)
Top.
3. a kind of total system removing toxic heavy metal in water removal according to claim 1, which is characterized in that described
Magnetic flocculation pond (2) is divided into two lattice, and the first lattice are for adding AlSnSi alloy, and the second lattice are for adding flocculation aid and magnetic kind；Its into
Water enters the second lattice using overflow manner from the first lattice, enters magnetic separating device I (3) by pipeline later.
4. a kind of total system removing toxic heavy metal in water removal according to claim 1, which is characterized in that described
Magnetic separating device I (3) is made of superconducting magnet and filter, and superconducting magnet is by low temperature Nb-Ti and Nb3Sn makes, and filter is filled out
It fills with ferromagnetic wire；The magnetic separating device I (3) realizes the company of magnet by way of cleaning sheet steel mesh one by one
Reforwarding row；The water outlet of the magnetic flocculation pond (2) enters magnetic separating device I (3), passes through ferromagnetic filtering built in abdominal cavity magnetic field first
Piece, ferromagnetism pollutant are obtained by rapid flutter on filter, and water is flowed out from side after purification, into load magnetic biological adsorption pond (4)；
The filter for being detached from magnetic field realizes the continuous operation of magnet by way of cleaning one by one；Sewage sludge storage containing magnetic after flushing is in magnetic
Sludge-tank (7) is crushed object containing electromagnetic pollution by stirring, then by magnetic stripper (9) recycling magnetic kind to magnetic flocculation pond (2), with
Just it recycles, remaining mud discharging to excess sludge pond (8).
5. a kind of total system removing toxic heavy metal in water removal according to claim 1, which is characterized in that described
It carries magnetic biological adsorption pond (4)：It is divided into two lattice, the first lattice carry magnetic biological adsorption agent for adding acid, the second lattice for adding；Its into
Water enters the second lattice using overflow manner from the first lattice, enters magnetic separating device II (5) by pipeline later；The Magneto separate dress
II (5) are set as magnetic separating device I (3) method of operation, is discharged after purification and enters discharge bay (6), carry magnetic biological pollutant row
Enter excess sludge pond (8).
6. a kind of total system removing toxic heavy metal in water removal according to claim 1, which is characterized in that described
Magnetic flocculation pond (2), carry magnetic biological adsorption pond (4) and magnetic sludge-tank (7) and be equipped with blender.
7. a kind of total system removing toxic heavy metal in water removal according to claim 2, which is characterized in that described
Administration device (15) in, AlSnSi alloy, flocculation aid, bronsted lowry acids and bases bronsted lowry administration device are all made of liquid mode and add, be equipped with metering
Pump control dosage；Wherein, bronsted lowry acids and bases bronsted lowry is added feeds back to dosing system according to real-time monitoring result, controls dosage；Described
Magnetic biological adsorption pond (4) are carried according to heavy metal feature, choose whether acid adding；If acid adding, acid, which is added to, carries magnetic biological adsorption pond (4)
In first lattice, its PH is made to be less than 3 or so；Alkali is added to discharge bay (6), adjusts its pH to neutrality left and right；The load magnetic biology is inhaled
Attached dose (13) place dispensing using powder chemicals feeder, are positioned over and carry magnetic biological adsorption pond top.
8. a kind of total system removing toxic heavy metal in water removal according to claim 1, which is characterized in that described
Magnetic sludge-tank (7), excess sludge pond (8) bottom are respectively arranged with blow valve；Dredge pump is housed in the magnetic stripper (9) on pipeline；
The excess sludge pond (8) enters dewaterer intermediate conduit and dredge pump is housed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299668A (en) * | 2020-11-26 | 2021-02-02 | 桂润环境科技股份有限公司 | high-COD lead-zinc industrial mineral processing wastewater treatment system and method |
| CN114621599A (en) * | 2022-03-17 | 2022-06-14 | 中南大学 | Nano ferrihydrite-spent grain composite colloidal material and preparation and application thereof |
-
2018
- 2018-01-29 CN CN201820149921.8U patent/CN208022847U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299668A (en) * | 2020-11-26 | 2021-02-02 | 桂润环境科技股份有限公司 | high-COD lead-zinc industrial mineral processing wastewater treatment system and method |
| CN112299668B (en) * | 2020-11-26 | 2023-09-19 | 桂润环境科技股份有限公司 | high-COD lead-zinc industrial beneficiation wastewater treatment system and method |
| CN114621599A (en) * | 2022-03-17 | 2022-06-14 | 中南大学 | Nano ferrihydrite-spent grain composite colloidal material and preparation and application thereof |
| CN114621599B (en) * | 2022-03-17 | 2023-03-10 | 中南大学 | Nano ferrihydrite-spent grain composite colloidal material and preparation and application thereof |
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