CN108046466A - The processing method of sanitary sewage - Google Patents
The processing method of sanitary sewage Download PDFInfo
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- CN108046466A CN108046466A CN201711289294.4A CN201711289294A CN108046466A CN 108046466 A CN108046466 A CN 108046466A CN 201711289294 A CN201711289294 A CN 201711289294A CN 108046466 A CN108046466 A CN 108046466A
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- flocculant
- sanitary sewage
- processing method
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Classifications
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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
-
- 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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention discloses a kind of processing method of sanitary sewage, sewage is sufficiently stirred after reaction through plate and frame filter press press filtration with flocculant in flocculation reaction device, by filtrate by ozone oxidation, dissipation processing, using secondary filter, activated carbon filtration treatment, flocculant includes vinyltrimethoxysilane, acrylamide, aluminium polychloride, polydimethyl diallyl ammonium chloride etc.；The treatment and purification effect of sewage is improved by the combination of flocculant and processing method, it is inorganic and organically compound, play different type and the strong point of different structure flocculant, and the defects of overcoming organic polymer and inorganic polymer inherently, and change morphosis and the distribution of polymer, inorganic polymer ingredient adsorbing contaminant and suspended particulates make to form particle and gradually increase；And organic polymer ingredient generates the net effect of catching, net catches other impurity particles and sinks together, greatly improves flocculating effect by the bridge linking effect of itself using active group of the absorption on organic polymer.
Description
Technical field
The present invention relates to a kind of sewage-treating agent, more particularly to a kind of processing method of sanitary sewage.
Background technology
With the raising of industrial expansion and human living standard, water consumption is continuously increased, water pollution phenomenon getting worse.
Flocculent precipitation is with its is simple and easy to do, separative efficiency is high and carries out solid-liquid point to the particle of not free settling as in water treatment industry
From important method.The property of flocculant directly influences flocculating effect, and then determines the matter of progress and the water outlet of follow-up process
Amount, therefore must continue to develop, to adapt to the increasingly sophisticated requirement of sewage composition.Flocculant it is various in style, from low molecule
It is to develop to cheap practical, non-toxic efficient direction from single type to compound, total trend to macromolecule.Inorganic flocculating agent
It is cheap, but can have a negative impact to human health and ecological environment；Although organic polymer coargulator dosage is few, scum silica frost
Yield is few, and flocculation ability is strong, and flco can be easily separated, and oil removing and oil removal effect are good, but the residual monomer tool of this kind of high polymer
There is " three cause " effect (causing rugged, carcinogenic, mutagenesis), thus be restricted its application range.And with the development of economy and people
Improvement of living standard, the water quality of city domestic sewage become to become increasingly complex, the requirement to water treatment agent complex function is got over
Come higher, therefore, flocculant should also have sterilization, decoloration, except a variety of work(such as COD, sustained release in addition to excellent flocculating property
Energy.The upper common flocculant of production at present is traditional inorganic flocculating agent aluminium salt, molysite (PAC, PFS etc.), using hydrolysis into water
Metal cation, generate absorption-electrical neutralization with negatively charged colloid in water, coacervation of colloid made to take off surely, but by
In its molecular weight is smaller, strand is shorter, scarce capacity is adsorbed-built bridge, therefore usually needs to add flocculation aid.Traditional wadding
Solidifying agent there are dosage it is big the shortcomings that, such as when handling sanitary sewage, aluminium polychloride optimum dosage is more than 80mg/L,
Pharmaceutical Wastewater Treatment (COD：10000mg/L, SS：When 1500mg/L), optimum dosage is more than 150mg/L.
The content of the invention
In view of this, it is an object of the invention to provide a kind of processing method of sanitary sewage, flocculating effect is good, can be effective
The organic matter and heavy metal ion in water body are removed, reduces turbidity of sewage, improves sewage treating efficiency.
The processing method of the sanitary sewage of the present invention, comprises the following steps：By sanitary sewage and flocculant in flocculation reaction
Be sufficiently stirred in device, react after by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, then pass through
Cross secondary filter, activated carbon filtration treatment；The flocculant raw material includes following components by weight：
10-15 parts of vinyltrimethoxysilane, 8-12 parts of acrylamide, 6-10 parts of aluminium polychloride, poly dimethyl two
5-8 parts of allyl ammonium chloride, 2-6 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 2-6,1-3 parts of modification infusorial earth, carboxymethyl cellulose
1-3 parts of sodium, 1-3 parts of redwood bark powder, 0.5-1 parts of initiator
Further, the flocculant raw material includes following components by weight：
13 parts of vinyltrimethoxysilane, 10 parts of acrylamide, 8 parts of aluminium polychloride, poly dimethyl allyl chlorine
Change 6.5 parts of ammonium, 4 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 4,2 parts of modification infusorial earth, 2 parts of sodium carboxymethylcellulose, redwood bark
2 parts of powder, 0.8 part of initiator；
Further, the modification infusorial earth performance density 0.3-0.4g/cm3, specific surface area 50-60m2/ g, quantity 2-2.5
Hundred million/g, aperture 80-125nm；
Further, the initiator is (N, the N dimethyleneisobutylamidine) dihydrochloride of 2,2- azos two or 2,2- azo two
(2- amidino groups propyl) dihydrochloride；
Further, the mixing time of the sanitary sewage and flocculant is 20~50 minutes, and agitation revolution is 400~2000
Rev/min.
Beneficial effects of the present invention：The processing method of the sanitary sewage of the present invention, passes through flocculant and the knot of processing method
The treatment and purification effect for improving sewage is closed, it is inorganic and organically compound, different type and the strong point of different structure flocculant are played,
And the defects of overcoming organic polymer and inorganic polymer inherently, and change morphosis and the distribution of polymer, it is inorganic
Macromolecule component adsorbing contaminant and suspended particulates make to form particle and gradually increase；And organic polymer ingredient by itself
Bridge linking effect generates the net effect of catching, under net catches other impurity particles together using active group of the absorption on organic polymer
It is heavy.Meanwhile the presence of inorganic salts neutralizes pollutant surface charge, promotes organic macromolecule flocculation, greatly improves wadding
Solidifying effect.By the flocculant of the present invention for handling sanitary sewage, the removal rate of suspended matter is the removal of 97%~99%, COD
Rate is 70%~78%, PO4 3-The removal rate of-P is 97%~99.5%, and the removal rate of ammonia nitrogen removal frank is 22%~25%,
SS, turbidity removal rate reach more than 99%.
Specific embodiment
The processing method of the sanitary sewage of the present invention, sanitary sewage is fully stirred with flocculant in flocculation reaction device
Mix, react after by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, using secondary filter, work
Property charcoal filtration treatment；The flocculant raw material includes following components by weight：
10-15 parts of vinyltrimethoxysilane, 8-12 parts of acrylamide), polydimethyl diallyl ammonium chloride 5-8
Part, 2-6 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 2-6,1-3 parts of modification infusorial earth, 1-3 parts of sodium carboxymethylcellulose, redwood bark
1-3 parts of powder, 0.5-1 parts of initiator；By organic synergy between inorganic molecule, different type and different knots are played
The strong point of structure flocculant, vinyltrimethoxysilane, polydimethyl diallyl ammonium chloride and acrylamide are synergistic, and
Calcium ion and iron ion in formula have again promotees flocculated effect, and the flco formed after aluminium polychloride addition is closely knit,
Grain is big, is conducive to settle and remove, and while the superior function of each metal ion flocculation treatment is played, is not weakening flocculation
On the premise of agent entirety flocculating effect, overcoming the latent defect of certain metal ion species, (such as residual aluminum ions are harmful to environment, handle
Sedimentation problem and low temperature turbidity removal reduction etc. after the remaining aluminium of water, iron ion flocculant easily make processing water colored and with corrosivity
Deng), make full use of between various metals ion and the synergistic principle between metal ion and other components overcome it is above-mentioned
Defect.
In the present embodiment, the flocculant raw material includes following components by weight：
13 parts of vinyltrimethoxysilane, 10 parts of acrylamide, 8 parts of aluminium polychloride, poly dimethyl allyl chlorine
Change 6.5 parts of ammonium, 4 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 4,2 parts of modification infusorial earth, 2 parts of sodium carboxymethylcellulose, redwood bark
2 parts of powder, 0.8 part of initiator.
In the present embodiment, the modification infusorial earth performance density 0.3-0.4g/cm3, specific surface area 50-60m2/ g, quantity 2-
2.5 hundred million/g, aperture 80-125nm；Diatomite is through overactivation and modified not only large specific surface area, and micropore is extremely more, to organic nothing
Machine colloidal solid have very strong adsorptivity, 3-4 times of adsorption capacity sole mass.Simultaneously because Fe2O3, CaO in diatomite,
The metal oxides such as MgO exist, and solubility salt is generated after being reacted with acid, have good coagulation after hydrolysis, during coagulation
The diatom mud layer formed has good filtration.Just because of diatomite has coagulation, absorption and filtering three greatly simultaneously
Effect.
In the present embodiment, the initiator is even for (N, the N dimethyleneisobutylamidine) dihydrochloride of 2,2- azos two or 2,2-
Nitrogen two (2- amidino groups propyl) dihydrochloride；Induction does not occur to decompose, chain tra nsfer is not occurred to product and does not generate branched structure production
Object further improves turbidity removal rate；
In this described example, the mixing time of the sanitary sewage and flocculant is 20~50 minutes, agitation revolution for 400~
2000 revs/min.
The flocculant of the present invention can be made by conventional preparation method.
Embodiment one
The processing method of the sanitary sewage of the present invention, the flocculant raw material include following components by weight：
10 parts of vinyltrimethoxysilane, 8 parts of acrylamide, 6 parts of aluminium polychloride, poly dimethyl allyl chlorination
5 parts of ammonium, 2 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 2,1 part of modification infusorial earth, 1 part of sodium carboxymethylcellulose, redwood bark powder 1
Part.
In the present embodiment, the modification infusorial earth performance density 0.3g/cm3, specific surface area 50m2/ g, 200,000,000/g of quantity,
Aperture 80nm.
Sanitary sewage and flocculant be sufficiently stirred to (mixing time is 20 minutes, agitation revolution in flocculation reaction device
For 400 revs/min), after reaction by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, using
Secondary filter, activated carbon filtration treatment, the removal rate that the removal rate of suspended matter is 97%, COD is 75%, PO4 3-The removal rate of-P
For 98.5%, the removal rate of ammonia nitrogen removal frank is 22%, SS, turbidity removal rate reaches more than 99%.
Embodiment two
The processing method of the sanitary sewage of the present embodiment, the flocculant raw material include following components by weight：
15 parts of vinyltrimethoxysilane, 12 parts of acrylamide, 10 parts of aluminium polychloride, poly dimethyl allyl chlorine
Change 8 parts of ammonium, 6 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 6,3 parts of modification infusorial earth, 3 parts of sodium carboxymethylcellulose, redwood bark powder 3
Part；
In the present embodiment, the modification infusorial earth performance density 0.4g/cm3, specific surface area 60m2/ g, quantity 2.5 hundred million/
G, aperture 125nm；
Sanitary sewage and flocculant be sufficiently stirred to (mixing time is 50 minutes, agitation revolution in flocculation reaction device
For 2000 revs/min), after reaction by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, then pass through
Cross secondary filter, activated carbon filtration treatment；The removal rate that the removal rate of suspended matter is 97.5%, COD is 75%, PO4 3-- P's goes
Except rate is 98%, the removal rate of ammonia nitrogen removal frank is 23%, SS, turbidity removal rate reaches more than 99%.
Embodiment three
The processing method of the sanitary sewage of the present embodiment, the flocculant raw material include following components by weight：
10 parts of vinyltrimethoxysilane, 12 parts of acrylamide, 6 parts of aluminium polychloride, poly dimethyl allyl chlorine
Change 8 parts of ammonium, 2 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 6,1 part of modification infusorial earth, 3 parts of sodium carboxymethylcellulose, redwood bark powder 1
Part, 0.5 part of 2,2- azos two (N, N dimethyleneisobutylamidine) dihydrochloride.
In the present embodiment, the modification infusorial earth performance density 0.3g/cm3, specific surface area 60m2/ g, hundred million/g of quantity 2-,
Aperture 80nm.
Sanitary sewage and flocculant be sufficiently stirred to (mixing time is 50 minutes, agitation revolution in flocculation reaction device
For 400 revs/min), after reaction by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, using
Secondary filter, activated carbon filtration treatment, the removal rate that the removal rate of suspended matter is 99%, COD is 78%, PO4 3-The removal rate of-P
For 98%, the removal rate of ammonia nitrogen removal frank is 22%, SS, turbidity removal rate reaches more than 99%.
Example IV
The processing method of the sanitary sewage of the present embodiment, the flocculant raw material include following components by weight：
15 parts of vinyltrimethoxysilane, 8 parts of acrylamide, 10 parts of aluminium polychloride, poly dimethyl allyl chlorine
Change 5 parts of ammonium, 6 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 2,3 parts of modification infusorial earth, 1 part of sodium carboxymethylcellulose, redwood bark powder 3
Part, 1 part of 2,2- azos two (2- amidino groups propyl) dihydrochloride.
In the present embodiment, the modification infusorial earth performance density 0.4g/cm3, specific surface area 60m2/ g, quantity 2.5 hundred million/
G, aperture 100nm；
Sanitary sewage and flocculant be sufficiently stirred to (mixing time is 30 minutes, agitation revolution in flocculation reaction device
For 1000 revs/min), after reaction by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, then pass through
Cross secondary filter, activated carbon filtration treatment.
The removal rate that the removal rate of suspended matter is 99%, COD is 78%, PO4 3-The removal rate of-P is 99.5%, and ammonia nitrogen is gone
Except the removal rate of rate reaches more than 99% for 24%, SS, turbidity removal rate.
Embodiment five
The processing method of the sanitary sewage of the present embodiment, the flocculant raw material include following components by weight：
12 parts of vinyltrimethoxysilane, 8 parts of acrylamide, 10 parts of aluminium polychloride, poly dimethyl allyl chlorine
Change 7 parts of ammonium, 2 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 6,2 parts of modification infusorial earth, 1 part of sodium carboxymethylcellulose, redwood bark powder 3
Part, 0.8 part of 2,2- azos two (N, N dimethyleneisobutylamidine) dihydrochloride.
In the present embodiment, the modification infusorial earth performance density 0.3g/cm3, specific surface area 50m2/ g, 200,000,000/g of quantity,
Aperture 120nm；
Sanitary sewage and flocculant be sufficiently stirred to (mixing time is 30 minutes, agitation revolution in flocculation reaction device
For 800 revs/min), after reaction by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, using
Secondary filter, activated carbon filtration treatment.
The removal rate that the removal rate of suspended matter is 99%, COD is 77%, PO4 3-The removal rate of-P is 99.5%, and ammonia nitrogen is gone
Except the removal rate of rate reaches more than 99% for 23%, SS, turbidity removal rate.
Embodiment six
The processing method of the sanitary sewage of the present embodiment, the flocculant raw material include following components by weight：
13 parts of vinyltrimethoxysilane, 10 parts of acrylamide, 8 parts of aluminium polychloride, poly dimethyl allyl chlorine
Change 6.5 parts of ammonium, 4 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 4,2 parts of modification infusorial earth, 2 parts of sodium carboxymethylcellulose, redwood bark
2 parts of powder.
In the present embodiment, the modification infusorial earth performance density 0.4g/cm3, specific surface area 60m2/ g, quantity 2.5 hundred million/
G, aperture 25nm；
Sanitary sewage and flocculant be sufficiently stirred to (mixing time is 40 minutes, agitation revolution in flocculation reaction device
For 1500 revs/min), after reaction by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing, then pass through
Cross secondary filter, activated carbon filtration treatment.
The removal rate that the removal rate of suspended matter is 99%, COD is 78%, PO4 3-The removal rate of-P is 99.5%, and ammonia nitrogen is gone
Except the removal rate of rate reaches more than 99% for 25%, SS, turbidity removal rate.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and scope of technical solution of the present invention, should all be covered at this
Among the right of invention.
Claims (5)
1. a kind of processing method of sanitary sewage, it is characterised in that：Comprise the following steps：Sanitary sewage and flocculant are being flocculated
Be sufficiently stirred in reaction unit, react after by plate and frame filter press press filtration, then by filtrate by ozone oxidation, dissipation processing,
Using secondary filter, activated carbon filtration treatment；The flocculant raw material includes following components by weight：
10-15 parts of vinyltrimethoxysilane, 8-12 parts of acrylamide, 6-10 parts of aluminium polychloride, two allyl of poly dimethyl
5-8 parts of ammonium chloride, 2-6 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 2-6,1-3 parts of modification infusorial earth, sodium carboxymethylcellulose 1-3
Part, 1-3 parts of redwood bark powder, 0.5-1 parts of initiator.
2. the processing method of sanitary sewage according to claim 1, it is characterised in that：The flocculant raw material is by weight
Including following components：
13 parts of vinyltrimethoxysilane, 10 parts of acrylamide, 8 parts of aluminium polychloride, polydimethyl diallyl ammonium chloride
6.5 parts, 4 parts of Polyaluminium Sulfate Chloride, polysulfide calcium chloride 4,2 parts of modification infusorial earth, 2 parts of sodium carboxymethylcellulose, redwood bark powder 2
Part, 0.8 part of initiator.
3. the processing method of sanitary sewage according to claim 2, it is characterised in that：The modification infusorial earth performance density
0.3-0.4g/cm3, specific surface area 50-60m2/ g, hundred million/g of quantity 2-2.5, aperture 80-125nm.
4. the processing method of sanitary sewage according to claim 3, it is characterised in that：The initiator is 2,2- azos two
(N, N dimethyleneisobutylamidine) dihydrochloride or 2,2- azos two (2- amidino groups propyl) dihydrochloride.
5. the processing method of sanitary sewage according to claim 4, it is characterised in that：The sanitary sewage and flocculant
Mixing time is 20~50 minutes, and agitation revolution is 400~2000 revs/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711289294.4A CN108046466A (en) | 2017-12-07 | 2017-12-07 | The processing method of sanitary sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711289294.4A CN108046466A (en) | 2017-12-07 | 2017-12-07 | The processing method of sanitary sewage |
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| CN109205825A (en) * | 2018-08-21 | 2019-01-15 | 重庆渝茁科技有限公司 | The processing method of sanitary sewage |
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| CN1648068A (en) * | 2004-12-30 | 2005-08-03 | 金增鲁 | Technology for purifying life waste water for generation and reusing |
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| CN109205825A (en) * | 2018-08-21 | 2019-01-15 | 重庆渝茁科技有限公司 | The processing method of sanitary sewage |
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Application publication date: 20180518 |