CN108328784A - A kind of sulfur acid sodium wastewater treatment equipment and its method - Google Patents
A kind of sulfur acid sodium wastewater treatment equipment and its method Download PDFInfo
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- CN108328784A CN108328784A CN201810040102.4A CN201810040102A CN108328784A CN 108328784 A CN108328784 A CN 108328784A CN 201810040102 A CN201810040102 A CN 201810040102A CN 108328784 A CN108328784 A CN 108328784A
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- subsider
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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Abstract
The invention discloses a kind of sulfur acid sodium wastewater treatment equipments, including synthetic reaction slot, synthesize subsider, refining reaction slot, refined subsider, saline slot, calcium sulfate pressing filter, sludge press filter, calcium sulfate feeding engine, salt dredge pump, calcium sulfate pressing filter, synthetic reaction slot, synthesize subsider, refining reaction slot, refined subsider, saline slot is sequentially connected, refined subsider is connect by salt dredge pump with sludge press filter, the filtrate (liquid of sludge press filter is connected with the circulation fluid import of refining reaction slot, synthesis subsider is connect by calcium sulfate feeding engine with calcium sulfate pressing filter, the filtrate (liquid of calcium sulfate pressing filter is connected with the filtrate cycle import of synthetic reaction slot, Jiao Ban Installed are provided in synthesis subsider and refined subsider to set.The invention also discloses the methods for using above-mentioned apparatus to handle sulfur acid sodium waste water.The present invention has the advantages that simple in structure, at low cost, easy to operate, high treating effect, energy conservation and environmental protection.
Description
Technical field
The present invention relates to industrial waste water treatments, and in particular to a kind of sulfur acid sodium wastewater treatment equipment and its side
Method.
Background technology
Chemical industry, metallurgy industry generate a large amount of sodium sulfate wastewater, and sodium sulphate content is about 40~130g/l, and total ammonia contains
Amount is 10~20mg/l (predominantly inorganic ammonia).Since salt content is higher in the waste water, if direct emission can cause water body saline and alkaline
Change, destroy ecological environment, along with high-salt wastewater can influence the bacteria live of biochemical system, can not be by bioanalysis at
Reason, and contained salinity is relatively simple in waste water, and the difficulty using embrane method denitration is larger.Currently, domestic processing sodium sulfate wastewater
There are mainly three types of methods：(1) sulfur acid sodium waste water generates the sodium hydroxide of low concentration, but due to this method high energy consumption, product matter
Amount is poor, generates stink damp body pollution environment in the process, and only 30% or so sodium sulphate is converted to sodium hydroxide；(2)
Sulfur acid sodium waste water generates chlorideless potassic fertilizer (potassium sulfate), the serious corruption due to the chlorion in solution under the high temperature conditions to equipment
Erosion, causes the service life of equipment short, and production cost is high；(3) sulfur acid sodium waste water crystallization generates sal glauberi, due to normal pressure
Heat source temperature is excessively high in evaporation process to be contacted with container, and requirement when being evaporated under reduced pressure to equipment is high, energy consumption is big, to increase
Addition sheet.
If Chinese patent CN205556306U discloses a kind of purifier of sodium sulfate wastewater, there are three pass through pipeline to tool
First order reaction slot, second order reaction slot and the third-order reaction slot being sequentially connected in series, the first order reaction slot and second order reaction slot, two level are anti-
Answer and be all provided on the pipeline that slot connect with third-order reaction slot there are one centrifugal pump, be equipped in 3 reactive tanks blender and
The upper end of liquid level gauge, first order reaction slot is equipped with sodium sulfate wastewater entrance, calcium hydroxide emulsion input port and calcium bisulfite input
Mouthful, it is equipped with calcium hydroxide emulsion input port on second order reaction slot and third-order reaction slot, the bottom of the third-order reaction slot is equipped with
Filter press.Shortcoming is that equipment is more, complicated, and operating cost is high.
Chinese patent CN204824506U discloses that the present invention provides sulfur acid sodium waste water in a kind of lead remanufacture
Special processor, including it is sequentially connected the feeding pump connect, system of three-effect downstream evaporator device, cyclone, crystallizer, centrifuge, mother
Liquid bath, screw feeder, continuous disc dryer and tail gas dust cleaning apparatus.Material liquid enters system of three-effect downstream evaporator dress by feeding pump
Evaporation and concentration is set, pressure difference punishment in advance is relied between each effect, realizes that cycle in effect, concentration reach a certain concentration by respective axial-flow pump
When, concentrated solution is delivered to cyclone through discharging pump extraction, and cyclone upper clear supernate continues to be concentrated by evaporation back to triple effect separation chamber,
It after bottom solidliquid mixture enters crystallizer crystallization, drains into centrifuge and is separated by solid-liquid separation, mother liquor is stored in mother liquor tank, solid warp
It crosses tray drier to be dried to obtain product, dust-containing tail gas discharges after entering tail gas dust cleaning apparatus dedusting.Shortcoming is to set
Standby more, complicated, equipment investment is big, cumbersome.
Chinese patent CN205099397U discloses a kind of high-concentration sulfur-containing acid sodium waste water evaporative crystallization processing unit, including
Raw material storage tank, feed pump, plate heat exchanger, circulating pump, heating room, crystallizing evaporator, hydrocyclone, slurries bucket, twin-stage push away
Expect centrifuge, vibrations fluid bed dryer, mother liquor holding tank, mother liquor pump, it is characterised in that：Raw material storage tank be linked in sequence feed pump,
Plate heat exchanger, circulating pump, heating room, crystallizing evaporator, hydrocyclone, slurries bucket, two-stage material-pushing centrifuge, vibrations fluidisation
Bed dryer, mother liquor holding tank, mother liquor pump, the plate heat exchanger top is equipped with plate heat exchanger serum outlet, plate heat exchanger
Serum outlet is connect by pipeline with circulating pump, and heating room bottom side is equipped with heating room slurry inlet, the other side is equipped with heating
Room serum outlet.Shortcoming is that equipment is more, complicated, and equipment investment is big, cumbersome.
The problems such as above processing unit generally existing device is complicated, equipment investment is big, operating cost is high, cumbersome, warp
Ji property is poor, cannot be used widely.
Invention content
The purpose of the present invention is in view of the drawbacks of the prior art, provide a kind of simple in structure, at low cost, easy to operate, place
Manage good effect, energy-saving and environment-friendly sulfur acid sodium wastewater treatment equipment and its method.
To achieve the above object, the technical solution adopted by the present invention is：A kind of sulfur acid sodium wastewater treatment equipment, including close
At reactive tank, synthesis subsider, refining reaction slot, refined subsider, saline slot, calcium sulfate pressing filter, sludge press filter, sulfuric acid
Calcium feeding engine, salt dredge pump, the calcium sulfate pressing filter, synthetic reaction slot, synthesis subsider, refining reaction slot, refined sedimentation
What slot and saline slot were sequentially connected, the refined subsider is connect by the salt dredge pump with the sludge press filter,
The filtrate (liquid of the sludge press filter is connected with the circulation fluid import of the refining reaction slot, the synthesis subsider
Connect with the calcium sulfate pressing filter by the calcium sulfate feeding engine, the filtrate (liquid of the calcium sulfate pressing filter with
The filtrate cycle import of the synthetic reaction slot is connected, and is provided in the synthesis subsider and the refined subsider
Jiao Ban Installed are set.
As the preferred embodiment of the present invention, the Jiao Ban Installed are set including agitating shaft, and 45 are provided on the agitating shaft。
Oblique leaf agitating paddle.
As the preferred embodiment of the present invention, the synthetic reaction slot, synthesis subsider, refining reaction slot, refined sedimentation
Slot is internally provided with baffle plate.
As the preferred embodiment of the present invention, the synthetic reaction slot, synthesis subsider, refining reaction slot, refined sedimentation
Slot is both provided with overflow port.
As the preferred embodiment of the present invention, the synthetic reaction slot is provided with sodium sulfate wastewater import, calcium chloride solution
Import, sodium hypochlorite inlet.
As the preferred embodiment of the present invention, the refining reaction slot is provided with sodium carbonate liquor import and sodium sulfite is molten
Liquid import.
As the preferred embodiment of the present invention, the synthetic reaction slot and refining reaction slot be both provided with compressed air into
Mouthful.
As the preferred embodiment of the present invention, the top of the synthesis subsider and refined subsider is cylinder, bottom
For inverted cone.
As the preferred embodiment of the present invention, the synthetic reaction slot and refining reaction slot are drum equipment.
The present invention also provides the methods for using above-mentioned apparatus to handle sulfur acid sodium waste water, include the following steps：
(1) be passed through the waste water of sulfur acid sodium into synthetic reaction slot by sodium sulfate wastewater import, and compressed air into
Mouthful being passed through compressed air into synthetic reaction slot is stirred, while by sodium hypochlorite inlet and calcium chloride solution import to conjunction
It is reacted at addition sodium hypochlorite and calcium chloride solution in reactive tank, the calcium chloride solution addition is theoretical addition amount
1~1.1 times, the addition of sodium hypochlorite is 0.05~0.2wt% (wt%, mass percent) of wastewater flow rate；
(2) it when synthetic reaction tank liquor position reaches the overflow port of synthetic reaction slot, overflows to synthesis subsider and carries out sedimentation point
From calcium sulfate precipitation enters calcium sulfate pressing filter press filtration, filtrate economic cooperation from synthesis sedimentation trench bottom discharge through calcium sulfate feeding engine
It is returned to synthetic reaction slot at the filtrate cycle import of reactive tank；
(3) synthesis subsider upper clear supernate is sent to refining reaction slot, while compressed sky through synthesizing the overflow port of subsider
Gas import is passed through compressed air to refining reaction slot and is stirred, and analyzes the calcium ion content in material, and according to analysis data
Sodium carbonate liquor is added to refining reaction slot to be reacted, control refining reaction slot with wastewater flow by sodium carbonate liquor import
Outlet waste water in carbonate content in 0.6g/l hereinafter, simultaneously according to enter refining reaction slot wastewater flow pass through sodium sulfite
Solution inlet port is into the sodium sulfite solution of refining reaction slot addition wastewater flow 0.2~0.4wt% and chlorine residue；
(4) when refining reaction tank liquor position reaches the overflow port of refining reaction slot, solution overflows to refined subsider and carries out
Sedimentation separation, the salt slurry that refined sedimentation trench bottom is discharged are transported outward after being pumped into sludge press filter press filtration by salt slurry, filtrate foldback
It is handled again to refining reaction slot, refined subsider upper clear supernate enters saline slot through refining the overflow port of subsider.
Following reaction occurs in synthetic reaction slot of the present invention：
Na2SO4+CaCl2→CaSO4↓+2NaCl；
NH3+HClO→NH2Cl+H2O；
NH3+2HClO→NHCl2+2H2O。
The calcium sulfate precipitation of reaction production is slightly soluble in water, is 0.255 in 18 DEG C of solubility, and the chlorine ammonia and two produced
Chlorine ammonia is easy to by air scavenging.
Following reaction occurs in refining reaction slot of the present invention：
Na2CO3+Ca2+→CaCO3↓+2Na+；
Na2SO3+ClO-→Na2SO4+Cl-。
Synthetic reaction slot and refining reaction slot in the present invention are internally provided with baffle plate, when increasing reaction by baffling
Between.The top of synthesis subsider and refined subsider in the present invention is cylinder, and bottom is inverted cone, convenient for row
Mud.It is provided with Jiao Ban Installed in synthesis subsider and refined subsider and sets, Jiao Ban Installed are set including agitating shaft, are provided on agitating shaft
45。Oblique leaf agitating paddle, can accelerate to be separated by solid-liquid separation, and prevent deposit from luming and occluding device pipeline, ensure device long period
Stable operation.
The present invention overcomes the sodium sulfate wastewater processing unit complex process of the prior art, equipment investments greatly, operating cost
The problems such as high, cumbersome, have the advantages that simple in structure, at low cost, easy to operate, waste resource can be detached back
It receives, with good economic efficiency and social benefit.
Compared with prior art, the present invention has the following advantages：
1, simple in structure, at low cost, sulfur acid sodium wastewater treatment equipment equipment of the invention is simple, is in the art
Conventional equipment significantly reduces cost of investment；
2, easy to operate, sulfur acid sodium wastewater treatment equipment of the invention realizes continuous operation, is easy to industrialize；
3, high treating effect, sodium sulphate removal rate reach as high as 94.93% 92.02% or more；Total ammonia removal rate reaches
90.78% or more, 91.97% is reached as high as, the index of treated clear liquid reached ion film caustic soda primary brine；
4, economic benefit and social benefit are good, and sulfur acid sodium wastewater treatment equipment of the invention realizes the comprehensive of waste resource
Close utilize, the gypsum that the calcium sulfate separated obtains after calcining, crushing, ripening can be used as building trade or other
The raw material of industry, the main component for refining gained clear liquid is sodium chloride, the exactly primary raw material of ion film caustic soda, can be used for producing
Three waste discharge, with good economic efficiency and social benefit can be greatly reduced in primary brine.
Description of the drawings
Fig. 1 is the sulfur acid sodium wastewater treatment equipment schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of the synthesis subsider and refined subsider of the present invention.
As shown in the figure：1 it is synthetic reaction slot, 2 be synthesis subsider, 3 be refining reaction slot, 4 be refined subsider, 5 is
Saline slot, 6 be calcium sulfate pressing filter, 7 be sludge press filter, 8 be calcium sulfate feeding engine, 9 be salt dredge pump, 10 be agitating shaft, 11
It is baffle plate for agitating paddle, 12.
Specific implementation mode
As shown in Figure 1 and Figure 2, sulfur acid sodium wastewater treatment equipment of the invention, including synthetic reaction slot 1, synthesis subsider
2, refining reaction slot 3, refined subsider 4, saline slot 5, calcium sulfate pressing filter 6, sludge press filter 7, calcium sulfate feeding engine 8, salt
Dredge pump 9, calcium sulfate pressing filter 6, synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4, saline slot 5 according to
Secondary to be connected, refined subsider 4 connect by salt dredge pump 9 with sludge press filter 7, the filtrate (liquid of sludge press filter 7 with refine instead
The circulation fluid import of slot 3 is answered to be connected, synthesis subsider 2 is connect by calcium sulfate feeding engine 8 with calcium sulfate pressing filter 6, calcium sulfate
The filtrate (liquid of filter press 6 is connected with the filtrate cycle import of synthetic reaction slot 1, synthesizes and is set in subsider 2 and refined subsider 4
Jiao Ban Installed are equipped with to set.Jiao Ban Installed are set including agitating shaft 10, and agitating paddle 11 is provided on agitating shaft 10.Synthetic reaction slot 1, synthesis are heavy
Drop slot 2, refining reaction slot 3, refined subsider 4 are internally provided with baffle plate 12.Synthetic reaction slot 1, refines synthesis subsider 2
Reactive tank 3, refined subsider 4 are both provided with overflow port.Synthetic reaction slot 1 is provided with sodium sulfate wastewater import, calcium chloride solution
Import, sodium hypochlorite inlet.Refining reaction slot 3 is provided with sodium carbonate liquor import and sodium sulfite solution import.Synthetic reaction
Slot 1 and refining reaction slot 3 are both provided with compressed air inlet.
Using above-mentioned apparatus handle sulfur acid sodium waste water technological process be：
Sodium sulphate content in waste water is analyzed, sodium sulfate wastewater is passed through into synthetic reaction slot 1, in 1 bottom of synthetic reaction slot
Compressed air is passed through to be stirred, according to analysis content and be passed through wastewater flow at the same add calcium chloride solution and sodium hypochlorite into
The product of row reaction, reaction is calcium sulfate, a chlorine ammonia and dichloro ammonia, and calcium sulfate precipitation is slightly soluble in water, and a chlorine ammonia and dichloro ammonia are very
It is easy by air scavenging.When 1 liquid level of reactive tank to be synthesized reaches the overflow port of synthetic reaction slot 1, overflow to synthesis subsider 2 into
Row is separated by solid-liquid separation, and calcium sulfate enters 6 press filtration of calcium sulfate pressing filter, filter from the discharge of 2 bottom of synthesis subsider through calcium sulfate feeding engine 8
Cake can be used for building trade after processing, and filtrate is sent to synthetic reaction slot 1, and synthesis 2 upper clear supernate of subsider is through synthesizing subsider 2
Overflow port be sent to refining reaction slot 3.After the supernatant liquor come out from synthesis subsider 2 enters refining reaction slot 3, refined anti-
It answers 3 bottom of slot to be passed through compressed air to be stirred, and sodium carbonate liquor is added and sodium sulfite solution is reacted, generate carbonic acid
Calcium and sodium chloride.When 3 liquid level of refining reaction slot reaches the overflow port of refining reaction slot 3, solution overflow to refined subsider 4 into
Row sedimentation separation, the main component for refining 4 bottom of subsider discharge salt slurry is calcium carbonate, and salt slurry press filtration is sent to by salt dredge pump 9
It is transported outward after 7 press filtration of machine, filtrate is returned to refining reaction slot 3 and is handled again, refines the main component of 4 upper clear supernate of subsider
It is sodium chloride, the overflow port through refining subsider 4 enters saline slot 5, and ionic exchange membrane caustic life is can be used for after analysis is qualified
Produce brine.
Below in conjunction with drawings and examples, the present invention will be described in further detail, but the present invention be not limited in it is described
Embodiment.
Embodiment 1
Sulfur acid sodium wastewater treatment equipment, including synthetic reaction slot 1 (drum equipment,Stainless steel 304 material
Matter), synthesis subsider 2 (top be cylinder, bottom be inverted cone,Stainless steel 304 material), essence
Reactive tank processed 3 (drum equipment,Stainless steel 304 material), (top is cylinder to refined subsider 4, and bottom is to fall
The cone set,Stainless steel 304 material), saline slot 5, calcium sulfate pressing filter 6, sludge press filter 7, calcium sulfate
Feeding engine 8, salt dredge pump 9, calcium sulfate pressing filter 6, synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider
4, saline slot 5 is sequentially connected, and refined subsider 4 is connect by salt dredge pump 9 with sludge press filter 7, and the filtrate of sludge press filter 7 goes out
Mouth is connected with the circulation fluid import of refining reaction slot 3, and synthesis subsider 4 passes through calcium sulfate feeding engine 8 and calcium sulfate pressing filter 6 connects
It connects, the filtrate (liquid of calcium sulfate pressing filter 6 is connected with the filtrate cycle import of synthetic reaction slot 1.It synthesizes subsider 2 and refines and sink
It is provided with Jiao Ban Installed in drop slot 4 and sets, Jiao Ban Installed are set including agitating shaft 10, and agitating paddle 11 (45 is provided on agitating shaft 10。Oblique leaf stirs
Mix paddle).Synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are internally provided with baffle plate 12.Synthesis
Reactive tank 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are both provided with overflow port.Synthetic reaction slot 1 is provided with sulphur
Sour sodium waste water inlet, calcium chloride solution import, sodium hypochlorite inlet.Refining reaction slot 3 is provided with sodium carbonate liquor import and Asia
Metabisulfite solution import.Synthetic reaction slot 1 and refining reaction slot 3 are both provided with compressed air inlet.
Sulfur acid sodium waste water is handled using above-mentioned apparatus, is included the following steps：
(1) with 0.5m3The flow of/h is passed through sodium sulphate content by sodium sulfate wastewater import into synthetic reaction slot 1
46.98g/L, the waste water that total ammonia content is 9.96mg/L, and it is passed through compression sky in the compressed air intlet in 1 bottom of synthetic reaction slot
Gas is stirred, at the same be added into synthetic reaction slot 1 by sodium hypochlorite inlet and calcium chloride solution import sodium hypochlorite and
The calcium chloride solution that mass fraction is 37.6%, it is 0.037m that flow, which is added, in calcium chloride solution3(the 1.05 of theoretical addition amount /h
Times), the addition of sodium hypochlorite is the 0.1wt% of wastewater flow rate；
(2) it when 1 liquid level of synthetic reaction slot reaches the overflow port of synthetic reaction slot 1, overflows to synthesis subsider 2 and is settled
Separation, calcium sulfate precipitation enter 6 press filtration of calcium sulfate pressing filter, filter cake from the discharge of 2 bottom of synthesis subsider through calcium sulfate feeding engine 8
It can be used for building trade after processing, filtrate is returned to synthetic reaction slot 1 through synthesizing the filtrate cycle import of reactive tank 1；
(3) synthesis 2 upper clear supernate of subsider is sent to refining reaction slot 3 through synthesizing the overflow port of subsider 2, while opening essence
Reaction tank bottom compressed air valve processed, compressed air intlet are passed through compressed air and are stirred, analyze material in calcium from
Sub- content, and it is molten for 12% sodium carbonate by sodium carbonate liquor import addition mass fraction according to analysis data and wastewater flow
Liquid, it is 0.6g/L that control refining reaction slot 3, which exports carbonate content in waste water, while according to the waste water for entering refining reaction slot 3
Flow adds the sodium sulfite solution of wastewater flow 0.3wt% by sodium sulfite solution import to refining reaction slot 3, more than neutralization
Chlorine；
(4) when 3 liquid level of refining reaction slot reaches the overflow port of refining reaction slot 3, solution overflow to refined subsider 4 into
Row sedimentation separation, the main component for refining the salt slurry of 4 bottom of subsider discharge is calcium carbonate, and salt slurry pressure is sent to by salt dredge pump 9
Transported outward after 7 press filtration of filter, filtrate is returned to refining reaction slot 3 and is handled again, refine subsider 4 upper clear supernate it is main at
It is sodium chloride to divide, and the overflow port through refining subsider 4 enters saline slot 5, can be used for ionic exchange membrane caustic after analysis is qualified
Produce brine.
Handling result：24 hours purification 12m of operation3Waste water, sodium sulphate content is 3.75g/L after processing, and removal rate is
92.02%, total ammonia content is 0.9mg/L, and removal rate reaches 90.96%.
Embodiment 2
Sulfur acid sodium wastewater treatment equipment, including synthetic reaction slot 1 (drum equipment,Stainless steel 304 material
Matter), synthesis subsider 2 (top be cylinder, bottom be inverted cone,Stainless steel 304 material), essence
Reactive tank processed 3 (drum equipment,Stainless steel 304 material), (top is cylinder to refined subsider 4, and bottom is to fall
The cone set,Stainless steel 304 material), saline slot 5, calcium sulfate pressing filter 6, sludge press filter 7, calcium sulfate
Feeding engine 8, salt dredge pump 9, calcium sulfate pressing filter 6, synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider
4, saline slot 5 is sequentially connected, and refined subsider 4 is connect by salt dredge pump 9 with sludge press filter 7, and the filtrate of sludge press filter 7 goes out
Mouth is connected with the circulation fluid import of refining reaction slot 3, and synthesis subsider 4 passes through calcium sulfate feeding engine 8 and calcium sulfate pressing filter 6 connects
It connects, the filtrate (liquid of calcium sulfate pressing filter 6 is connected with the filtrate cycle import of synthetic reaction slot 1.It synthesizes subsider 2 and refines and sink
Jiao Ban Installed are provided in drop slot 4 to set.Jiao Ban Installed are set including agitating shaft 10, and agitating paddle 11 (45 is provided on agitating shaft 10。Oblique leaf stirs
Mix paddle).Synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are internally provided with baffle plate 12.Synthesis
Reactive tank 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are both provided with overflow port.Synthetic reaction slot 1 is provided with sulphur
Sour sodium waste water inlet, calcium chloride solution import, sodium hypochlorite inlet.Refining reaction slot 3 is provided with sodium carbonate liquor import and Asia
Metabisulfite solution import.Synthetic reaction slot 1 and refining reaction slot 3 are both provided with compressed air inlet.
Sulfur acid sodium waste water is handled using above-mentioned apparatus, is included the following steps：
(1) with 0.6m3The flow of/h is passed through sodium sulphate content by sodium sulfate wastewater import into synthetic reaction slot 1
46.98g/L, the waste water that total ammonia content is 9.96mg/L, and it is passed through compression sky in the compressed air intlet in 1 bottom of synthetic reaction slot
Gas is stirred, at the same be added into synthetic reaction slot 1 by sodium hypochlorite inlet and calcium chloride solution import sodium hypochlorite and
The calcium chloride solution that mass fraction is 37.6%, it is 0.038m that flow, which is added, in calcium chloride solution3(the 1.07 of theoretical addition amount /h
Times), the addition of sodium hypochlorite is the 0.05wt% of wastewater flow rate；
(2) it when 1 liquid level of synthetic reaction slot reaches the overflow port of synthetic reaction slot 1, overflows to synthesis subsider 2 and is settled
Separation, calcium sulfate precipitation enter 6 press filtration of calcium sulfate pressing filter, filter cake from the discharge of 2 bottom of synthesis subsider through calcium sulfate feeding engine 8
It can be used for building trade after processing, filtrate is returned to synthetic reaction slot 1 through synthesizing the filtrate cycle import of reactive tank 1；
(3) synthesis 2 upper clear supernate of subsider is sent to refining reaction slot 3 through synthesizing the overflow port of subsider 2, while opening essence
Reaction tank bottom compressed air valve processed, compressed air intlet are passed through compressed air and are stirred, analyze material in calcium from
Sub- content, and it is molten for 12% sodium carbonate by sodium carbonate liquor import addition mass fraction according to analysis data and wastewater flow
Liquid, it is 0.6g/L that control refining reaction slot 3, which exports carbonate content in waste water, while according to the waste water for entering refining reaction slot 3
Flow adds the sodium sulfite solution of wastewater flow 0.2wt% by sodium sulfite solution import to refining reaction slot 3, more than neutralization
Chlorine；
(4) when 3 liquid level of refining reaction slot reaches the overflow port of refining reaction slot 3, solution overflow to refined subsider 4 into
Row sedimentation separation, the main component for refining the salt slurry of 4 bottom of subsider discharge is calcium carbonate, and salt slurry pressure is sent to by salt dredge pump 9
Transported outward after 7 press filtration of filter, filtrate is returned to refining reaction slot 3 and is handled again, refine subsider 4 upper clear supernate it is main at
It is sodium chloride to divide, and the overflow port through refining subsider 4 enters saline slot 5, can be used for ionic exchange membrane caustic after analysis is qualified
Produce brine.
Handling result：24 hours purification 14.4m of operation3Waste water, after processing sodium sulphate content be 2.38g/L, removal rate
It is 94.93%；Total ammonia content is 0.8mg/L, and removal rate reaches 91.97%.
Embodiment 3
Sulfur acid sodium wastewater treatment equipment, including synthetic reaction slot 1 (drum equipment,Stainless steel 304 material
Matter), synthesis subsider 2 (top be cylinder, bottom be inverted cone,Stainless steel 304 material), essence
Reactive tank processed 3 (drum equipment,Stainless steel 304 material), (top is cylinder to refined subsider 4, and bottom is to fall
The cone set,Stainless steel 304 material), saline slot 5, calcium sulfate pressing filter 6, sludge press filter 7, calcium sulfate
Feeding engine 8, salt dredge pump 9, calcium sulfate pressing filter 6, synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider
4, saline slot 5 is sequentially connected, and refined subsider 4 is connect by salt dredge pump 9 with sludge press filter 7, and the filtrate of sludge press filter 7 goes out
Mouth is connected with the circulation fluid import of refining reaction slot 3, and synthesis subsider 4 passes through calcium sulfate feeding engine 8 and calcium sulfate pressing filter 6 connects
It connects, the filtrate (liquid of calcium sulfate pressing filter 6 is connected with the filtrate cycle import of synthetic reaction slot 1.It synthesizes subsider 2 and refines and sink
Jiao Ban Installed are provided in drop slot 4 to set.Jiao Ban Installed are set including agitating shaft 10, and agitating paddle 11 (45 is provided on agitating shaft 10。Oblique leaf stirs
Mix paddle).Synthetic reaction slot 1 and refining reaction slot 3 are internally provided with baffle plate 12.Synthetic reaction slot 1, refines synthesis subsider 2
Reactive tank 3, refined subsider 4 are both provided with overflow port.Synthetic reaction slot 1 is provided with sodium sulfate wastewater import, calcium chloride solution
Import, sodium hypochlorite inlet.Refining reaction slot 3 is provided with sodium carbonate liquor import and sodium sulfite solution import.Synthetic reaction
Slot 1 and refining reaction slot 3 are both provided with compressed air inlet.
Sulfur acid sodium waste water is handled using above-mentioned apparatus, is included the following steps：
(1) with 0.8m3The flow of/h is passed through sodium sulphate content by sodium sulfate wastewater import into synthetic reaction slot 1
46.98g/L, the waste water that total ammonia content is 9.96mg/L, and it is passed through compression sky in the compressed air intlet in 1 bottom of synthetic reaction slot
Gas is stirred, at the same be added into synthetic reaction slot 1 by sodium hypochlorite inlet and calcium chloride solution import sodium hypochlorite and
The calcium chloride solution that mass fraction is 37.6%, it is 0.040m that flow, which is added, in calcium chloride solution3(the 1.1 of theoretical addition amount /h
Times), the addition of sodium hypochlorite is the 0.08wt% of wastewater flow rate；
(2) it when 1 liquid level of synthetic reaction slot reaches the overflow port of synthetic reaction slot 1, overflows to synthesis subsider 2 and is settled
Separation, calcium sulfate precipitation enter 6 press filtration of calcium sulfate pressing filter, filter cake from the discharge of 2 bottom of synthesis subsider through calcium sulfate feeding engine 8
It can be used for building trade after processing, filtrate is returned to synthetic reaction slot 1 through synthesizing the filtrate cycle import of reactive tank 1；
(3) synthesis 2 upper clear supernate of subsider is sent to refining reaction slot 3 through synthesizing the overflow port of subsider 2, while opening essence
Reaction tank bottom compressed air valve processed, compressed air intlet are passed through compressed air and are stirred, analyze material in calcium from
Sub- content, and it is molten for 12% sodium carbonate by sodium carbonate liquor import addition mass fraction according to analysis data and wastewater flow
Liquid, it is 0.6g/L that control refining reaction slot 3, which exports carbonate content in waste water, while according to the waste water for entering refining reaction slot 3
Flow adds the sodium sulfite solution of wastewater flow 0.25wt% by sodium sulfite solution import to refining reaction slot 3, neutralizes
Chlorine residue；
(4) when 3 liquid level of refining reaction slot reaches the overflow port of refining reaction slot 3, solution overflow to refined subsider 4 into
Row sedimentation separation, the main component for refining the salt slurry of 4 bottom of subsider discharge is calcium carbonate, and salt slurry pressure is sent to by salt dredge pump 9
Transported outward after 7 press filtration of filter, filtrate is returned to refining reaction slot 3 and is handled again, refine subsider 4 upper clear supernate it is main at
It is sodium chloride to divide, and the overflow port through refining subsider 4 enters saline slot 5, can be used for ionic exchange membrane caustic after analysis is qualified
Produce brine.
Handling result：24 hours purification 19.2m of operation3Waste water, after processing sodium sulphate content be 2.51g/L, removal rate
It is 94.66%；Total ammonia content is 0.9mg/L, and removal rate reaches 90.96%.
Embodiment 4
Sulfur acid sodium wastewater treatment equipment, including synthetic reaction slot 1 (drum equipment,Stainless steel 304 material
Matter), synthesis subsider 2 (top be cylinder, bottom be inverted cone,Stainless steel 304 material), essence
Reactive tank processed 3 (drum equipment,Stainless steel 304 material), (top is cylinder to refined subsider 4, and bottom is to fall
The cone set,Stainless steel 304 material), saline slot 5, calcium sulfate pressing filter 6, sludge press filter 7, calcium sulfate
Feeding engine 8, salt dredge pump 9, calcium sulfate pressing filter 6, synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider
4, saline slot 5 is sequentially connected, and refined subsider 4 is connect by salt dredge pump 9 with sludge press filter 7, and the filtrate of sludge press filter 7 goes out
Mouth is connected with the circulation fluid import of refining reaction slot 3, and synthesis subsider 4 passes through calcium sulfate feeding engine 8 and calcium sulfate pressing filter 6 connects
It connects, the filtrate (liquid of calcium sulfate pressing filter 6 is connected with the filtrate cycle import of synthetic reaction slot 1.It synthesizes subsider 2 and refines and sink
Jiao Ban Installed are provided in drop slot 4 to set.Jiao Ban Installed are set including agitating shaft 10, and agitating paddle 11 (45 is provided on agitating shaft 10。Oblique leaf stirs
Mix paddle).Synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are internally provided with baffle plate 12.Synthesis
Reactive tank 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are both provided with overflow port.Synthetic reaction slot 1 is provided with sulphur
Sour sodium waste water inlet, calcium chloride solution import, sodium hypochlorite inlet.Refining reaction slot 3 is provided with sodium carbonate liquor import and Asia
Metabisulfite solution import.Synthetic reaction slot 1 and refining reaction slot 3 are both provided with compressed air inlet.
Sulfur acid sodium waste water is handled using above-mentioned apparatus, is included the following steps：
(1) with 1.0m3The flow of/h is passed through sodium sulphate content by sodium sulfate wastewater import into synthetic reaction slot 1
88.85g/L, total ammonia content are the waste water of 14.35mg/L, and are passed through compression in the compressed air intlet in 1 bottom of synthetic reaction slot
Air is stirred, while sodium hypochlorite is added into synthetic reaction slot 1 by sodium hypochlorite inlet and calcium chloride solution import
The calcium chloride solution for being 37.6% with mass fraction, it is 0.075m that flow, which is added, in calcium chloride solution3(the 1.1 of theoretical addition amount /h
Times), the addition of sodium hypochlorite is the 0.15wt% of wastewater flow rate；
(2) it when 1 liquid level of synthetic reaction slot reaches the overflow port of synthetic reaction slot 1, overflows to synthesis subsider 2 and is settled
Separation, calcium sulfate precipitation enter 6 press filtration of calcium sulfate pressing filter, filter cake from the discharge of 2 bottom of synthesis subsider through calcium sulfate feeding engine 8
It can be used for building trade after processing, filtrate is returned to synthetic reaction slot 1 through synthesizing the filtrate cycle import of reactive tank 1；
(3) synthesis 2 upper clear supernate of subsider is sent to refining reaction slot 3 through synthesizing the overflow port of subsider 2, while opening essence
Reaction tank bottom compressed air valve processed, compressed air intlet are passed through compressed air and are stirred, analyze material in calcium from
Sub- content, and it is molten for 12% sodium carbonate by sodium carbonate liquor import addition mass fraction according to analysis data and wastewater flow
Liquid, it is 0.6g/L that control refining reaction slot 3, which exports carbonate content in waste water, while according to the waste water for entering refining reaction slot 3
Flow adds the sodium sulfite solution of wastewater flow 0.35wt% by sodium sulfite solution import to refining reaction slot 3, neutralizes
Chlorine residue；
(4) when 3 liquid level of refining reaction slot reaches the overflow port of refining reaction slot 3, solution overflow to refined subsider 4 into
Row sedimentation separation, the main component for refining the salt slurry of 4 bottom of subsider discharge is calcium carbonate, and salt slurry pressure is sent to by salt dredge pump 9
Transported outward after 7 press filtration of filter, filtrate is returned to refining reaction slot 3 and is handled again, refine subsider 4 upper clear supernate it is main at
It is sodium chloride to divide, and the overflow port through refining subsider 4 enters saline slot 5, can be used for ionic exchange membrane caustic after analysis is qualified
Produce brine.
Handling result：24 hours purification 24m of operation3Waste water, sodium sulphate content is 5.00g/L after processing, and removal rate is
94.37%；Total ammonia content is 1.2mg/L, and removal rate reaches 91.64%.
Embodiment 5
Sulfur acid sodium wastewater treatment equipment, including synthetic reaction slot 1 (drum equipment,Stainless steel 304 material
Matter), synthesis subsider 2 (top be cylinder, bottom be inverted cone,Stainless steel 304 material), essence
Reactive tank processed 3 (drum equipment,Stainless steel 304 material), (top is cylinder to refined subsider 4, and bottom is to fall
The cone set,Stainless steel 304 material), saline slot 5, calcium sulfate pressing filter 6, sludge press filter 7, calcium sulfate
Feeding engine 8, salt dredge pump 9, calcium sulfate pressing filter 6, synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider
4, saline slot 5 is sequentially connected, and refined subsider 4 is connect by salt dredge pump 9 with sludge press filter 7, and the filtrate of sludge press filter 7 goes out
Mouth is connected with the circulation fluid import of refining reaction slot 3, and synthesis subsider 4 passes through calcium sulfate feeding engine 8 and calcium sulfate pressing filter 6 connects
It connects, the filtrate (liquid of calcium sulfate pressing filter 6 is connected with the filtrate cycle import of synthetic reaction slot 1.It synthesizes subsider 2 and refines and sink
Jiao Ban Installed are provided in drop slot 4 to set.Jiao Ban Installed are set including agitating shaft 10, and agitating paddle 11 (45 is provided on agitating shaft 10。Oblique leaf stirs
Mix paddle).Synthetic reaction slot 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are internally provided with baffle plate 12.Synthesis
Reactive tank 1, synthesis subsider 2, refining reaction slot 3, refined subsider 4 are both provided with overflow port.Synthetic reaction slot 1 is provided with sulphur
Sour sodium waste water inlet, calcium chloride solution import, sodium hypochlorite inlet.Refining reaction slot 3 is provided with sodium carbonate liquor import and Asia
Metabisulfite solution import.Synthetic reaction slot 1 and refining reaction slot 3 are both provided with compressed air inlet.
Sulfur acid sodium waste water is handled using above-mentioned apparatus, is included the following steps：
(1) with 1.5m3The flow of/h is passed through sodium sulphate content by sodium sulfate wastewater import into synthetic reaction slot 1
130.4g/L, total ammonia content are the waste water of 18.43mg/L, and are passed through compression in the compressed air intlet in 1 bottom of synthetic reaction slot
Air is stirred, while sodium hypochlorite is added into synthetic reaction slot 1 by sodium hypochlorite inlet and calcium chloride solution import
The calcium chloride solution for being 37.6% with mass fraction, it is 0.110m that flow, which is added, in calcium chloride solution3(the 1.1 of theoretical addition amount /h
Times), the addition of sodium hypochlorite is the 0.2wt% of wastewater flow rate；
(2) it when 1 liquid level of synthetic reaction slot reaches the overflow port of synthetic reaction slot 1, overflows to synthesis subsider 2 and is settled
Separation, calcium sulfate precipitation enter 6 press filtration of calcium sulfate pressing filter, filter cake from the discharge of 2 bottom of synthesis subsider through calcium sulfate feeding engine 8
It can be used for building trade after processing, filtrate is returned to synthetic reaction slot 1 through synthesizing the filtrate cycle import of reactive tank 1；
(3) synthesis 2 upper clear supernate of subsider is sent to refining reaction slot 3 through synthesizing the overflow port of subsider 2, while opening essence
Reaction tank bottom compressed air valve processed, compressed air intlet are passed through compressed air and are stirred, analyze material in calcium from
Sub- content, and it is molten for 12% sodium carbonate by sodium carbonate liquor import addition mass fraction according to analysis data and wastewater flow
Liquid, it is 0.6g/L that control refining reaction slot 3, which exports carbonate content in waste water, while according to the waste water for entering refining reaction slot 3
Flow adds the sodium sulfite solution of wastewater flow 0.4wt% by sodium sulfite solution import to refining reaction slot 3, more than neutralization
Chlorine；
(4) when 3 liquid level of refining reaction slot reaches the overflow port of refining reaction slot 3, solution overflow to refined subsider 4 into
Row sedimentation separation, the main component for refining the salt slurry of 4 bottom of subsider discharge is calcium carbonate, and salt slurry pressure is sent to by salt dredge pump 9
Transported outward after 7 press filtration of filter, filtrate is returned to refining reaction slot 3 and is handled again, refine subsider 4 upper clear supernate it is main at
It is sodium chloride to divide, and the overflow port through refining subsider 4 enters saline slot 5, can be used for ionic exchange membrane caustic after analysis is qualified
Produce brine.
Handling result：24 hours purification 36m of operation3Waste water, sodium sulphate content is 8.49g/L after processing, and removal rate is
93.49%；Total ammonia content is 1.7mg/L, and removal rate reaches 90.78%.
Claims (10)
1. a kind of sulfur acid sodium wastewater treatment equipment, including synthetic reaction slot, synthesis subsider, refining reaction slot, refined sedimentation
Slot, saline slot, calcium sulfate pressing filter, sludge press filter, calcium sulfate feeding engine, salt dredge pump, the calcium sulfate pressing filter, synthesis
What reactive tank, synthesis subsider, refining reaction slot, refined subsider and saline slot were sequentially connected, which is characterized in that the essence
Subsider processed is connect by the salt dredge pump with the sludge press filter, the filtrate (liquid of the sludge press filter and institute
The circulation fluid import of the refining reaction slot stated is connected, and the synthesis subsider passes through the calcium sulfate feeding engine and described
Calcium sulfate pressing filter connects, the filtrate cycle import of the filtrate (liquid of the calcium sulfate pressing filter and the synthetic reaction slot
It is connected, is provided with Jiao Ban Installed in the synthesis subsider and the refined subsider and sets.
2. sulfur acid sodium wastewater treatment equipment according to claim 1, which is characterized in that the Jiao Ban Installed are set including stirring
Axis is mixed, 45 ° of oblique leaf agitating paddles are provided on the agitating shaft.
3. sulfur acid sodium wastewater treatment equipment according to claim 1, which is characterized in that the synthetic reaction slot closes
It is internally provided with baffle plate at subsider, refining reaction slot, refined subsider.
4. sulfur acid sodium wastewater treatment equipment according to claim 1, which is characterized in that the synthetic reaction slot closes
It is both provided with overflow port at subsider, refining reaction slot, refined subsider.
5. requiring the sulfur acid sodium wastewater treatment equipment described in 1 according to power, which is characterized in that the synthetic reaction slot is provided with
Sodium sulfate wastewater import, calcium chloride solution import, sodium hypochlorite inlet.
6. sulfur acid sodium wastewater treatment equipment according to claim 1, which is characterized in that the refining reaction slot setting
There are sodium carbonate liquor import and sodium sulfite solution import.
7. sulfur acid sodium wastewater treatment equipment according to claim 1, which is characterized in that the synthetic reaction slot and essence
Reactive tank processed is both provided with compressed air inlet.
8. sulfur acid sodium wastewater treatment equipment according to claim 1, which is characterized in that the synthesis subsider and essence
The top of subsider processed is cylinder, and bottom is inverted cone.
9. sulfur acid sodium wastewater treatment equipment according to claim 1, which is characterized in that the synthetic reaction slot and essence
Reactive tank processed is drum equipment.
10. using the method for device processing sulfur acid sodium waste water described in claim 1, it is characterised in that include the following steps：
(1) be passed through the waste water of sulfur acid sodium into synthetic reaction slot by sodium sulfate wastewater import, and compressed air intlet to
Compressed air is passed through in synthetic reaction slot to be stirred, while anti-to synthesis by sodium hypochlorite inlet and calcium chloride solution import
Answer and sodium hypochlorite and calcium chloride solution are added in slot are reacted, the calcium chloride solution addition be theoretical addition amount 1~
1.1 times, the addition of sodium hypochlorite is 0.05~0.2wt% of wastewater flow rate；
(2) it when synthetic reaction tank liquor position reaches the overflow port of synthetic reaction slot, overflows to synthesis subsider and carries out sedimentation separation, sulphur
Sour calcium precipitate enters calcium sulfate pressing filter press filtration from synthesis sedimentation trench bottom discharge through calcium sulfate feeding engine, and filtrate is through synthetic reaction
The filtrate cycle import of slot is returned to synthetic reaction slot；
(3) synthesis subsider upper clear supernate is sent to refining reaction slot through synthesizing the overflow port of subsider, at the same compressed air into
Mouth is passed through compressed air to refining reaction slot and is stirred, and analyzes the calcium ion content in material, and according to analysis data and give up
Water flow is added sodium carbonate liquor to refining reaction slot by sodium carbonate liquor import and is reacted, the outlet of control refining reaction slot
In waste water carbonate content in 0.6g/l hereinafter, simultaneously according to enter refining reaction slot wastewater flow pass through sodium sulfite solution
Import is into the sodium sulfite solution of refining reaction slot addition wastewater flow 0.2~0.4wt% and chlorine residue；
(4) when refining reaction tank liquor position reaches the overflow port of refining reaction slot, solution overflows to refined subsider and is settled
Separation, the salt slurry that refined sedimentation trench bottom is discharged are transported outward after being pumped into sludge press filter press filtration by salt slurry, and filtrate is returned to essence
Reactive tank processed is handled again, and refined subsider upper clear supernate enters saline slot through refining the overflow port of subsider.
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| WO2002026640A1 (en) * | 2000-09-26 | 2002-04-04 | Microbar, Inc. | Simultaneous ammonia and fluoride treatment for wastewater |
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| CN102849857A (en) * | 2012-04-10 | 2013-01-02 | 南京大学 | Method for treating high-salinity high-concentration ammonia-nitrogen wastewater |
| CN103073126A (en) * | 2013-01-24 | 2013-05-01 | 中国高岭土有限公司 | Treatment method of kaolin mineral processing waste water |
| CN103382033B (en) * | 2013-06-26 | 2016-05-11 | 山东大地盐化集团有限公司 | A kind of substep extracts the technique of the solid matter of salt refining process generation |
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| WO2002026640A1 (en) * | 2000-09-26 | 2002-04-04 | Microbar, Inc. | Simultaneous ammonia and fluoride treatment for wastewater |
| CN201276469Y (en) * | 2008-03-25 | 2009-07-22 | 中国科学院广州地球化学研究所 | Apparatus for processing difficult biochemical treatment ammonia nitrogen wastewater by break-point chlorination |
| CN102849857A (en) * | 2012-04-10 | 2013-01-02 | 南京大学 | Method for treating high-salinity high-concentration ammonia-nitrogen wastewater |
| CN103073126A (en) * | 2013-01-24 | 2013-05-01 | 中国高岭土有限公司 | Treatment method of kaolin mineral processing waste water |
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