CN206368083U - Wastewater treatment equipment - Google Patents
Wastewater treatment equipment Download PDFInfo
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- CN206368083U CN206368083U CN201621424685.3U CN201621424685U CN206368083U CN 206368083 U CN206368083 U CN 206368083U CN 201621424685 U CN201621424685 U CN 201621424685U CN 206368083 U CN206368083 U CN 206368083U
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Abstract
The utility model discloses a kind of wastewater treatment equipment.The wastewater treatment equipment includes a coagulating basin, physical absorption pond, second coagulation pond, flocculation basin and the sedimentation basin for being sequentially connected in series setting.Wastewater treatment is carried out using the above-mentioned wastewater treatment equipment of the utility model, the clean-up effect of waste water can be significantly improved, and with inexpensive, easy-operating advantage.
Description
Technical field
The utility model is related to field of waste water treatment, in particular to a kind of wastewater treatment equipment.
Background technology
On June 25th, 2008, national environmental protection portion have approved《Pulp and paper industry pollution discharge standard》(GB3544-
2008) it have adjusted discharge standard system.New standard improves the requirement of slurry papermaking enterprise Sewage Water Emissions, simultaneously for needs
The region of special protection then defines the special emission limit of water pollutant.Country's papermaking enterprise generally uses biochemical treatment side at present
Method, its water outlet still contains a certain amount of pollutant, is difficult to only with the conventional tertiary treatment technology effluent quality such as coagulating sedimentation
The requirement of new standard is reached, therefore turns into the focus of research for the further treatment technique of paper waste.Existing paper waste
Further treatment technique mainly has the technologies such as coagulant sedimentation, adsorbent absorption method, advanced oxidation processes.
Wherein coagulation is one of the most frequently used advanced treatment process at present, is often connected with the link such as precipitation, filtering, to through life
Waste water after change processing carries out advanced treating, while the indexs such as colloidal suspended substance, CODcr are removed, also removes a part of color
Degree.The technique has preferable removal effect to water-borne glue body and hydrophobic organic matter, but has for hydrophilic dissolubility
Machine thing, removal effect is not good.
Absorption method is to utilize porous solid matter, one or more materials in waste water is adsorbed to the surface of solids
And the method removed, it can be used for the purpose such as deodorization and organics removal, colloid, microorganism and residual chlorine.It is characterized in processing effect
It is really good, CODCR can be reduced to very low, and equipment is simple, but need regeneration after adsorption saturation, operation inconvenience and operating cost compared with
Height, generally as the subsequent treatment means of coagulation treatment method.
High-level oxidation technology includes Fenton oxidation method, photocatalytic oxidation, electrochemical oxidation technology, Ozonation
Deng with reaction speed is fast, treatment effeciency is high, destroy thorough, non-secondary pollution, applied widely, easy behaviour to toxic pollutant
The advantages of making.The mainly Fenton oxidation method of practical application in current industry.The construction cost of high-level oxidation technology and processing
Cost is higher, and wherein Fenton is in different slurry sheet type manufacturing enterprises actual motion case, ton cost of water treatment is 1.5~5.0
Member, or even can be higher.These high-level oxidation technology operation difficulties are relatively large, and of a relatively high govern of operating cost is given up in papermaking
Commercial Application in terms of water depth processing, it is actually rare in the practical application of actual paper waste advanced treating.
As shown in the above, there is the purification not defect such as thorough, processing cost height in the processing at present for paper waste.
Utility model content
The utility model aims to provide a kind of wastewater treatment equipment, to solve processing in the prior art for paper waste
Purification not thoroughly, the problem of processing cost is high.
According to one side of the present utility model, a kind of wastewater treatment equipment is additionally provided, it includes being sequentially connected in series setting
A coagulating basin, physical absorption pond, second coagulation pond, flocculation basin and sedimentation basin.
Further, wastewater treatment equipment also includes biochemistry pool, and biochemistry pool is connected with a coagulating basin, and biochemistry pool is located at
The upstream of coagulating basin.
Further, sedimentation basin is inclined-plate clarifying basin.
Further, sedimentation basin is provided with sludge outlet, and sludge outlet is connected with physical absorption pond.
Further, sludge outlet is arranged on the bottom of sedimentation basin.
Further, wastewater treatment equipment also includes mud discharging pipeline, mud discharging pipeline and sludge outlet and physics
Pipeline connection between adsorption tank.
Further, sedimentation basin is additionally provided with treated water outlet, and treated water outlet is arranged on the top of sedimentation basin.
Further, wastewater treatment equipment also includes：First stirring slurry, the first stirring slurry is arranged in a coagulating basin；
Second agitating paddle, the second agitating paddle is arranged in physical absorption pond；3rd agitating paddle, the 3rd agitating paddle is arranged on second coagulation pond
In；And the 4th agitating paddle, the 4th agitating paddle is arranged in flocculation basin.
The wastewater treatment equipment that the utility model is provided, combines coagulating treatment, physical absorption and flocculation treatment.Specifically
Ground：
Using a coagulating treatment, the pollutants such as colloid, suspension in waste water can be made by the hydrolysis of the first coagulant
Product, which is swept, is caught, and forming most of hydrophobicity and macromolecule contaminant in flco, waste water can be removed in the stage.Further
Handled using physical absorption, the hydrolysate of the coagulant of part first continues mutually to be complexed with physical absorbent, condense formation compared with
Big flocculating body improves coagulation effect, while the suction-operated of physical absorbent makes waste water be difficult to small point that coagulation is removed on last stage
Sub- pollutant, hydrophily pollutant are effectively removed.The second mixture after physical absorption goes successively to second coagulation, contains
The flco for having physical absorbent further increases in this stage, and mixed heavy effect is further strengthened.3rd mixture enters
After flocculated stage, flco is further mutually condensed, and separation of solid and liquid is finally realized in solid-liquid separation process, is purified water.
Above-mentioned processing method takes full advantage of the advantage of each medicament, and waste water can be included to suspension, colloid, hydrophobicity
All kinds of impurity such as pollutant, small molecule, hydrophily, dissolved pollutant are fully removed.Meanwhile, physical absorption processing is placed in one
After secondary coagulating treatment, before second coagulation processing and flocculation treatment, coagulant hydrolysate and physical absorbent can be utilized
Complexing, borrows the flco gradually grown up, can further improve the removal effect of Pollutants in Wastewater, and can effectively carry
The effect of high separation of solid and liquid.In addition, compared to the first coagulating sedimentation mode that physical absorption is handled again, the utility model is so set
Put, without building the process sections such as physical absorption filter tank again, adsorbent can be obtained by separation in the coagulating sedimentation stage, greatly save
Investment is with taking up an area.In a word, using the above-mentioned method of wastewater treatment of the utility model, the clean-up effect of waste water can be significantly improved,
And with inexpensive, easy-operating advantage.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 is shown according to a kind of schematic diagram of the wastewater treatment equipment of embodiment of the present utility model；
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, a coagulating basin；11st, the first stirring slurry；20th, physical absorption pond；21st, the second agitating paddle；30th, second coagulation
Pond；31st, the 3rd agitating paddle；40th, flocculation basin；41st, the 4th agitating paddle；50th, sedimentation basin；501st, sludge outlet；502nd, purified water goes out
Mouthful.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.The utility model is described in detail below in conjunction with embodiment.
As described by background section, existing method of wastewater treatment, which has that clean-up effect is poor, cost is high lacks
Fall into.
In order to solve this problem, the utility model provides a kind of wastewater treatment equipment, as shown in figure 1, the device bag
Include a coagulating basin 10, physical absorption pond 20, second coagulation pond 30, flocculation basin 40 and the sedimentation basin 50 being arranged in series.
In the device, a coagulating basin 10 is used to carry out a coagulating treatment to waste water；Physical absorption pond 20 is used for one
The first mixture that secondary coagulating treatment is obtained carries out physical absorption processing；Second coagulation pond 30 is used for the obtained to physical absorption
Two mixtures carry out second coagulation processing；The 3rd mixture that flocculation basin 30 is used to obtain second coagulation carries out flocculation treatment；
The 4th mixture that sedimentation basin 50 is used to obtain flocculation treatment carries out separation of solid and liquid, to be purified water.
Above-mentioned processing unit takes full advantage of the advantage of each functional pool, waste water can be included to suspension, colloid, hydrophobic
All kinds of impurity such as contact scar thing, small molecule, hydrophily, dissolved pollutant are fully removed.Meanwhile, physical absorption processing is placed in
After coagulating treatment, before second coagulation processing and flocculation treatment, coagulant hydrolysate and physical absorbent can be utilized
Complexing, borrow the flco gradually grown up, can further improve the removal effect of Pollutants in Wastewater, and can be effective
Improve the effect of separation of solid and liquid.In addition, compared to the first coagulating sedimentation mode that physical absorption is handled again, the utility model is so set
Put, without building the process sections such as physical absorption filter tank again, adsorbent can be obtained by separation in the coagulating sedimentation stage, greatly save
Investment is with taking up an area.In a word, using the above-mentioned method of wastewater treatment of the utility model, the clean-up effect of waste water can be significantly improved,
And especially handled with inexpensive, easy-operating advantage after paper waste, the purified water of output meets GB3544-2008's
Discharge standard.
In a preferred embodiment, wastewater treatment equipment also includes biochemistry pool, biochemistry pool and a coagulating basin 10
Connection, and biochemistry pool is located at the upstream of a coagulating basin 10.Sewage can first be carried out biochemical treatment by this, be conducive to further changing
Kind clean-up effect.
In a preferred embodiment, sedimentation basin 50 is inclined-plate clarifying basin.The sedimentation effect of such sedimentation basin is more preferably.
In a preferred embodiment, as shown in figure 1, being provided with sludge outlet 501, sludge outlet on sedimentation basin 50
501 connect with physical absorption pond 20.The sludge of part can be so passed through in physical absorption pond and be reused.Consider
Contain the adsorbent of unadsorbed saturation in the sludge of sedimentation basin 50, therefore by the way that precipitating sludge is back into front end, make remaining medicine
Agent continues to play a role, and forms high concentration coagulant adsorbent environment, not only contributes to the removal of pollutant, can also save
A large amount of medicaments.
In a preferred embodiment, sludge outlet 501 is arranged on the bottom of sedimentation basin 50.So can directly by
The sludge discharge being precipitated out.
In a preferred embodiment, wastewater treatment equipment also include mud discharging pipeline, mud discharging pipeline with
Pipeline connection between sludge outlet 501 and physical absorption pond 20.This partial sludge can also be passed directly into biochemistry pool and carry out profit
With.
In a preferred embodiment, as shown in figure 1, being additionally provided with treated water outlet 502 on sedimentation basin 50, purification
Water out 502 is arranged on the top of sedimentation basin 50.So, the top that purified water can be directly from sedimentation basin 50 is overflowed.
In a preferred embodiment, as shown in figure 1, wastewater treatment equipment also includes：First stirring slurry 11, first
Stirring slurry 11 is arranged in a coagulating basin 10；Second agitating paddle 21, the second agitating paddle 21 is arranged in physical absorption pond 20；The
Three agitating paddles 31, the 3rd agitating paddle 31 is arranged in second coagulation pond 30；And the 4th agitating paddle 41, the 4th agitating paddle 41 sets
In flocculation basin 40.To improve the stability and efficiency of each pond purified treatment.
In addition, according to another aspect of the present utility model, additionally providing a kind of method of wastewater treatment, it includes following step
Suddenly：Coagulating treatment is carried out to waste water using the first coagulant, the first mixture is obtained；It is mixed to first using physical absorbent
Compound carries out physical absorption processing, obtains the second mixture；The second mixture is carried out at second coagulation using the second coagulant
Reason, obtains the 3rd mixture；Flocculation treatment is carried out to the 3rd mixture using flocculant, the 4th mixture is obtained；And to
Four mixtures carry out separation of solid and liquid, are purified water.
Using a coagulating treatment, the pollutants such as colloid, suspension in waste water can be made by the hydrolysis of the first coagulant
Product, which is swept, is caught, and forming most of hydrophobicity and macromolecule contaminant in flco, waste water can be removed in the stage.Further
Handled using physical absorption, the hydrolysate of the coagulant of part first continues mutually to be complexed with physical absorbent, condense formation compared with
Big flocculating body improves coagulation effect, while the suction-operated of physical absorbent makes waste water be difficult to small point that coagulation is removed on last stage
Sub- pollutant, hydrophily pollutant are effectively removed.The second mixture after physical absorption goes successively to second coagulation, contains
The flco for having physical absorbent further increases in this stage, and mixed heavy effect is further strengthened.3rd mixture enters
After flocculated stage, flco is further mutually condensed, and separation of solid and liquid is finally realized in solid-liquid separation process, is purified water.
Above-mentioned processing method takes full advantage of the advantage of each medicament, and waste water can be included to suspension, colloid, hydrophobicity
All kinds of impurity such as pollutant, small molecule, hydrophily, dissolved pollutant are fully removed.Meanwhile, physical absorption processing is placed in one
After secondary coagulating treatment, before second coagulation processing and flocculation treatment, coagulant hydrolysate and physical absorbent can be utilized
Complexing, borrows the flco gradually grown up, can further improve the removal effect of Pollutants in Wastewater, and can effectively carry
The effect of high separation of solid and liquid.In addition, compared to the first coagulating sedimentation mode that physical absorption is handled again, the utility model is so set
Put, without building the process sections such as physical absorption filter tank again, adsorbent can be obtained by separation in the coagulating sedimentation stage, greatly save
Investment is with taking up an area.In a word, using the above-mentioned method of wastewater treatment of the utility model, the clean-up effect of waste water can be significantly improved,
And with inexpensive, easy-operating advantage.When especially handling paper waste, the purified water of output meets GB3544-2008's
Discharge standard.
What is used in above-mentioned coagulating treatment step can be the arbitrary coagulant in this area.In one kind preferred embodiment
In, the first coagulant and the second coagulant are each independently selected from polyaluminium aluminium iron sulfate coagulant, aluminium polychloride coagulation
One or more in agent and poly-ferric chloride coagulant.It is highly preferred that the first coagulant is polyaluminium aluminium iron sulfate coagulation
Agent, the second coagulant is aluminium polychloride coagulant.
Polyaluminium aluminium iron sulfate (PAFCS) is to compare aluminium polychloride in the new and effective coagulant researched and developed in recent years, form
(PAC), poly-ferric chloride (PFC) is more complicated, and the double salt of a large amount of high poly- complexing bodies, the coagulation effect in water process are produced after hydrolysis
Fruit applies PAFCS in paper waste advanced treating, to pollutants such as colloid, suspensions considerably beyond other simple ions
Removal effect it is fairly obvious.And PAFCS is used a coagulation stage, and PAC is used in the second coagulation stage, it is on the one hand favourable
In the clearance for improving pollutant, be on the one hand conducive to cost-effective.
The physical absorbent used in above-mentioned physical absorption processing can be physical absorbent commonly used in the art.In one kind
In preferred embodiment, physical absorbent is the one or more in activated carbon, activated coke and bentonite.More preferably physics is inhaled
Attached dose is activated carbon.More hydrophilic dissolved pollutant and small molecule contaminants, this partial contamination thing are usually contained in waste water
Removed by the stronger suction-operated of Powdered Activated Carbon, therefore, it is possible to further improve the clearance of pollutant.
Especially by after PAFCS and activated carbon combination, most pollutants in waste water can be removed effectively.More
Especially, after a coagulating treatment, further to add after Powdered Activated Carbon, burgy and the PAFSC mutual network of hydrolysate
Close, be more beneficial for the formation of alumen ustum.And flco is condensed upon and formed around burgy after larger alumen ustum, sinking speed is very fast, can be with
Save the medicament usage amount of follow-up flocculant.
The purpose of above-mentioned flocculation treatment is that the flco for forming earlier stage further flocculates, in order to the solid-liquid point in later stage
From processing.In a preferred embodiment, flocculant is PAM (polyacrylamide) flocculant.It is highly preferred that flocculant is
PAM flocculants, the Flocculating Effect of Flocculant is obvious, and cost is relatively low.
According to the species and containing filth amount of waste water, those skilled in the art can be carried out for the added amount of chemical in each stage
Adjustment.In a preferred embodiment, the dosage of the first coagulant is 300~1000mg/L, the throwing of the second coagulant
Dosage is 100~200mg/L, and the dosage of physical absorbent is 20~100mg/L, the dosage of flocculant for 0.5~
1.5mg/L.Throughout the reason stage adds above-mentioned two sections of medicaments of consumption respectively, on the one hand can improve the clean-up effect of waste water, one
Aspect can also save medicament, reduce cost.Above-mentioned dosage is the addition of the medicament relative to every liter of process object, for example,
The dosage of second coagulant is amounts of the 100~200mg/L equivalent to the second coagulant added in 1L the second mixture
For 100~200mg.
In a preferred embodiment, in the step of coagulating treatment, hydraulic detention time is 2~5min；Thing
In the step of managing adsorption treatment, hydraulic detention time is 15~25min；In the step of second coagulation is handled, hydraulic detention time
For 2~5min；In the step of flocculation treatment, hydraulic detention time is 4~8min.Under the processing time, the clean-up effect of waste water
More preferably.
In addition to time and added amount of chemical, the wastewater treatment of each step is carried out preferably under conditions of stirring, such as：One
In secondary coagulating treatment, mixer mixing speed is 280r/min.In physical absorption process step, mixer mixing speed is
280r/min.In second coagulation process step, mixer mixing speed 280r/min, hydraulic detention time is 3min.At flocculation
Manage in step, mixer mixing speed 200r/min.
Preferably, in the step of separation of solid and liquid, separation of solid and liquid is carried out by the way of sloping plate deposition.Separation of solid and liquid is in precipitation
(such as plus sand high speed pellets pond) is carried out in pond, because the alumen ustum that the technique is produced is larger, and contains physical absorbent, sludge sinks
Speed drops, so sedimentation basin can keep higher upflow velocity, and water outlet is as clear as crystal, stable effluent quality.It is excellent
During selecting separation of solid and liquid, upflow velocity is 10~15m/h.
In a preferred embodiment, in the step of above-mentioned separation of solid and liquid, while obtaining sludge；Processing method is also wrapped
Include following steps：Partial sludge is returned, adds and physical absorption processing is carried out into the first mixture.In view of clarifier sludge
In contain the adsorbent of unadsorbed saturation, therefore by the way that precipitating sludge is back into front end, make residual pharmacy continue to play a role,
High concentration coagulant adsorbent environment is formd, the removal of pollutant is not only contributed to, a large amount of medicaments can also be saved.
Excellent clean-up effect can be realized using the above-mentioned processing method of the utility model.In a kind of preferred implementation
Example in, carry out a coagulation the step of before, in addition to waste water carry out biochemical treatment the step of.This is conducive to further changing
Kind clean-up effect.
In actual application, above-mentioned biochemical treatment step is carried out in biochemical system.Preferably, partial sludge is returned
It flow in the biological tank front end of biochemical system, sludge and contains physical absorbent, biological tank adds physical absorbent and on the one hand can carried
High sludge activity, improves sludge settling performance, is conducive to second pond separation of solid and liquid.Simultaneously can also improve non-degradable COD or
TOC clearance, particularly can effectively remove the colourity and stink of paper-making pulping waste water, reduce the foamed phenomenon of aeration tank,
Improve the disposal ability of biochemical system.
And specifically, it is preferable to which 10% sludge reflux to physical absorption process step, 90% is back into biochemical treatment step.
In addition, the purified water after above-mentioned processing can be arranged outside after entering sterilization pool processing.
The beneficial effects of the utility model are further illustrated by the following examples：
Embodiment 1
The paper waste Jing Guo biochemical treatment is handled in accordance with the following steps：
Primary coagulating basin：PAFCS dosage 1000mg/L, mixer mixing speed is 280r/min, hydraulic detention time
For 3min.
Adsorption tank：Powdered Activated Carbon dosage 20mg/L, mixer mixing speed is 280r/min, and hydraulic detention time is
20min。
Two-stage coagulation pond：PAC dosage 200mg/L, mixer mixing speed 280r/min, hydraulic detention time is
3min。
Flocculation basin：PAM dosage 0.5mg/L, mixer mixing speed 200r/min, hydraulic detention time is 6min.
Sedimentation basin：Upflow velocity control range 15m/h.
Chemical sludge backflow allocative decision：10% is back to adsorption tank, and 90% is back to biological tank aeration zone front end.
Water outlet is met：CODCr≤50mg/L、BOD5≤10mg/L、SS≤10mg/L、NH3-N≤5mg/L、T-N≤10mg/
The requirement of the special emission limit of the national water pollution discharge standard pollutants of L, T-P≤0.5mg/L.
Embodiment 2
The paper waste Jing Guo biochemical treatment is handled in accordance with the following steps：
Primary coagulating basin：PAFCS dosage 300mg/L, mixer mixing speed is 280r/min, and hydraulic detention time is
5min。
Adsorption tank：Powdered Activated Carbon dosage 100mg/L, mixer mixing speed is 280r/min, hydraulic detention time
For 25min.
Two-stage coagulation pond：PAC dosage 100mg/L, mixer mixing speed 280r/min, hydraulic detention time is
2min。
Flocculation basin：PAM dosage 1.5mg/L, mixer mixing speed 200r/min, hydraulic detention time is 8min.
Sedimentation basin：Upflow velocity control range 10m/h.
Chemical sludge backflow allocative decision：10% is back to adsorption tank, and 90% is back to biological tank aeration zone front end.
Water outlet is met：CODCr≤50mg/L、BOD5≤10mg/L、SS≤10mg/L、NH3-N≤5mg/L、T-N≤10mg/
The requirement of the special emission limit of the national water pollution discharge standard pollutants of L, T-P≤0.5mg/L.
Embodiment 3
The paper waste Jing Guo biochemical treatment is handled in accordance with the following steps：
Primary coagulating basin：PAFCS dosage 800mg/L, mixer mixing speed is 250r/min, and hydraulic detention time is
2min。
Adsorption tank：Powdered Activated Carbon dosage 60mg/L, mixer mixing speed is 250r/min, and hydraulic detention time is
15min。
Two-stage coagulation pond：PAC dosage 150mg/L, mixer mixing speed 250r/min, hydraulic detention time is
5min。
Flocculation basin：PAM dosage 0.5mg/L, mixer mixing speed 200r/min, hydraulic detention time is 4min.
Sedimentation basin：Upflow velocity control range 12m/h.
Chemical sludge backflow allocative decision：10% is back to adsorption tank, and 90% is back to biological tank aeration zone front end.
Water outlet is met：CODCr≤50mg/L、BOD5≤10mg/L、SS≤10mg/L、NH3-N≤5mg/L、T-N≤10mg/
The requirement of the special emission limit of the national water pollution discharge standard pollutants of L, T-P≤0.5mg/L.
Embodiment 4
The paper waste Jing Guo biochemical treatment is handled in accordance with the following steps：
Primary coagulating basin：PAC dosage 800mg/L, mixer mixing speed is 250r/min, and hydraulic detention time is
2min。
Adsorption tank：Bentonite dosage 60mg/L, mixer mixing speed is 250r/min, and hydraulic detention time is
15min。
Two-stage coagulation pond：PFC dosage 150mg/L, mixer mixing speed 250r/min, hydraulic detention time is
5min。
Flocculation basin：PAM dosage 0.5mg/L, mixer mixing speed 200r/min, hydraulic detention time is 4min.
Sedimentation basin：Upflow velocity control range 12m/h.
Chemical sludge backflow allocative decision：10% is back to adsorption tank, and 90% is back to biological tank aeration zone front end.
Water outlet is met：CODCr≤50mg/L、BOD5≤10mg/L、SS≤10mg/L、NH3-N≤5mg/L、T-N≤10mg/
The requirement of the special emission limit of the national water pollution discharge standard pollutants of L, T-P≤0.5mg/L.
Embodiment 5
The paper waste Jing Guo biochemical treatment is handled in accordance with the following steps：
Primary coagulating basin：PAC dosage 280mg/L, mixer mixing speed is 250r/min, and hydraulic detention time is
2min。
Adsorption tank：Bentonite dosage 18mg/L, mixer mixing speed is 250r/min, and hydraulic detention time is
15min。
Two-stage coagulation pond：PFC dosage 80mg/L, mixer mixing speed 250r/min, hydraulic detention time is 5min.
Flocculation basin：PAM dosage 0.4mg/L, mixer mixing speed 200r/min, hydraulic detention time is 4min.
Sedimentation basin：Upflow velocity control range 15m/h.
Chemical sludge backflow allocative decision：10% is back to adsorption tank, and 90% is back to biological tank aeration zone front end.
Water outlet is met：CODCr≤50mg/L、BOD5≤10mg/L、SS≤10mg/L、NH3-N≤5mg/L、T-N≤10mg/
The requirement of the special emission limit of the national water pollution discharge standard pollutants of L, T-P≤0.5mg/L.
Degree of purification comparative result in embodiment 1 to 5 is as follows：The degree of purification of sewage in embodiment 1 to 3 is higher than real
The degree of purification for applying the sewage in the degree of purification of sewage in example 4, embodiment 4 is higher than the degree of purification of sewage in embodiment 5.
Comparative example 1
The paper waste Jing Guo biochemical treatment is handled in accordance with the following steps：
Primary coagulating basin：PAC dosage 280mg/L, mixer mixing speed is 250r/min, and hydraulic detention time is
2min。
Two-stage coagulation pond：PFC dosage 80mg/L, mixer mixing speed 250r/min, hydraulic detention time is 5min.
Flocculation basin：PAM dosage 0.4mg/L, mixer mixing speed 200r/min, hydraulic detention time is 4min.
Sedimentation basin：Upflow velocity control range 15m/h.
Chemical sludge backflow allocative decision：10% is back to adsorption tank, and 90% is back to biological tank aeration zone front end.
Water outlet is unsatisfactory for：CODCr≤50mg/L、BOD5≤10mg/L、SS≤10mg/L、NH3-N≤5mg/L、T-N≤
The requirement of the special emission limit of the national water pollution discharge standard pollutants of 10mg/L, T-P≤0.5mg/L.
From data above, sewage is carried out by the way of physical absorption is combined using two-stage coagulation in the utility model
Processing, disclosure satisfy that GB3544-2008 discharge standard.And carried out in comparative example only with the mode of second coagulation at sewage
Reason, it is impossible to meet GB3544-2008 discharge standard.
Particularly, the degree of purification of the sewage in embodiment 1 to 3 is higher than the degree of purification of sewage in embodiment 4, shows profit
With PAFCS as the first coagulant, PAC as the second coagulant, activated carbon as physical absorbent when, it is for the net of sewage
Change more thorough.The degree of purification of sewage in embodiment 4 is higher than the degree of purification of sewage in embodiment 5, shows the medicine used
When the dosage of agent is particular range, the purification for sewage is more thorough.
In a word, the wastewater treatment mode effect specific as follows that the utility model is provided：
1st, NEW TYPE OF COMPOSITE ferro-aluminum inorganic polymer coagulant is combined with activated carbon, the excellent of each medicament can be given full play to
Gesture.PAFCS is to suspension, colloid, hydrophobic contaminant high treating effect, but, original not high to hydrophilic small molecule clearance
Water exists without macromolecular and hydrophobic contaminant substantially after PAFCS is handled, and greatly facilitates activated carbon to small molecule, hydrophilic
Property, dissolved pollutant remove, the chemical adsorption of activated carbon is played to ultimate attainment, fully supplement PAFCS deficiency, and both
Mutually promote and efficiently remove most pollutants in paper waste.
2nd, add Powdered Activated Carbon and PAFCS hydrolysates are mutually complexed, be conducive to formation and the pollutant of coagulation alumen ustum
Removal, while adding flco weight containing Powdered Activated Carbon in flco so that sedimentation basin is maintained higher upper up-flow
Speed, not only sedimentation effect is good but also reduces precipitation pool volume, saves and takes up an area.
3rd, charcoal absorption section is arranged at before the flocculation basin of coagulating basin rear end, compared to the charcoal absorption again of first coagulating sedimentation
The mode of processing, without building the process sections such as activated carbon filter again, activated carbon can be obtained by separation in the coagulating sedimentation stage, significantly
Investment has been saved with taking up an area.
4th, it is innovative to be partly refluxed to adsorption tank front end by adjusting clarifier sludge, form high concentration adsorbent ring
Border, not only contributes to the removal of pollutant, can also save medicament.
When the 5th, preferably, by the mud discharging containing big carbon content active produced in advanced treatment process, by excess sludge
PACT biological activated carbon methods can be formed by being back to biochemical system biological tank front end, not only enhance biochemical treatment section processing effect
Really, improving contaminant removal efficiency improves sludge character, and takes full advantage of the surplus value of chemical sludge, saves medicine consumption.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (8)
1. a kind of wastewater treatment equipment, it is characterised in that coagulating basin (10), a physical absorption pond including being sequentially connected in series setting
(20), second coagulation pond (30), flocculation basin (40) and sedimentation basin (50).
2. wastewater treatment equipment according to claim 1, it is characterised in that the wastewater treatment equipment also includes biochemistry
Pond, the biochemistry pool is connected with a coagulating basin (10), and the biochemistry pool is located at the upper of a coagulating basin (10)
Trip.
3. wastewater treatment equipment according to claim 1, it is characterised in that the sedimentation basin (50) is inclined-plate clarifying basin.
4. wastewater treatment equipment according to any one of claim 1 to 3, it is characterised in that the sedimentation basin (50) sets
Sludge outlet (501) is equipped with, the sludge outlet (501) connects with the physical absorption pond (20).
5. wastewater treatment equipment according to claim 4, it is characterised in that the sludge outlet (501) is arranged on described
The bottom of sedimentation basin (50).
6. wastewater treatment equipment according to claim 4, it is characterised in that the wastewater treatment equipment also includes sludge and arranged
Put pipeline, the pipeline connection between the mud discharging pipeline and the sludge outlet (501) and the physical absorption pond (20).
7. wastewater treatment equipment according to claim 4, it is characterised in that the sedimentation basin (50) is additionally provided with purified water
Export (502), the treated water outlet (502) is arranged on the top of the sedimentation basin (50).
8. wastewater treatment equipment according to any one of claim 1 to 3, it is characterised in that the wastewater treatment equipment
Also include：
First stirring slurry (11), first stirring slurry (11) is arranged in a coagulating basin (10)；
Second agitating paddle (21), second agitating paddle (21) is arranged in the physical absorption pond (20)；
3rd agitating paddle (31), the 3rd agitating paddle (31) is arranged in the second coagulation pond (30)；And
4th agitating paddle (41), the 4th agitating paddle (41) is arranged in the flocculation basin (40).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621424685.3U CN206368083U (en) | 2016-12-22 | 2016-12-22 | Wastewater treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621424685.3U CN206368083U (en) | 2016-12-22 | 2016-12-22 | Wastewater treatment equipment |
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| Publication Number | Publication Date |
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| CN206368083U true CN206368083U (en) | 2017-08-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673255A (en) * | 2016-12-22 | 2017-05-17 | 北京恩菲环保技术有限公司 | Wastewater treatment method and wastewater treatment device |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673255A (en) * | 2016-12-22 | 2017-05-17 | 北京恩菲环保技术有限公司 | Wastewater treatment method and wastewater treatment device |
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