CN109607721A - Black and odorous water administering method - Google Patents
Black and odorous water administering method Download PDFInfo
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- CN109607721A CN109607721A CN201811614639.3A CN201811614639A CN109607721A CN 109607721 A CN109607721 A CN 109607721A CN 201811614639 A CN201811614639 A CN 201811614639A CN 109607721 A CN109607721 A CN 109607721A
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- flocculant
- black
- odorous water
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- polyacrylamide
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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
- C02F1/52—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
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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
- C02F1/52—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
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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
- C02F1/52—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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to black and odorous water Treatment process field, at high cost, the unworkable problem for existing administering method provides a kind of black and odorous water administering method, comprising the following steps: S1, dissolution flocculant；S2, the flocculant solution of dissolution is sprinkled into black and odorous water；S3, flocculant and the sediment that dirt is formed are salvaged；Flocculant includes the component of following mass fraction: 120-160 parts of polyacrylamide；7.5-10 parts of ferrous sulfate；7.5-10 parts of silica dioxide gel；1.5-2 parts of coupling agent.Get up the improvement to black and odorous water can be completed by being sprinkled into flocculant into black and odorous water, then by the sediment salvaging that suspended matter and flocculant are formed, it is easy to operate, and flocculant price is low, advantageously reduces treatment cost, so that economic benefit improves.
Description
Technical field
The present invention relates to black and odorous water Treatment process fields, more specifically, it relates to a kind of black and odorous water administering method.
Background technique
With the fast development of China's urban economy, city size increasingly expands, and urban environment infrastructure is increasingly insufficient.
After the xenobiotic pollutants such as a large amount of organic pollutant, organic reducing nitrogen, phosphorus enter water body, oxygen consumption rate is big in oxidation decomposition course
In reoxygenation rate, the dissolved oxygen concentration of water body is caused to reduce, so that water body is converted to anoxic or anaerobic state, so as to cause anaerobism
Microorganism mass propagation, and promote the organic matter in water body to decompose, corrupt and fermentation, it forms particle suspension object and swims in water body
In, while generating the foul gas such as methane, the hydrogen sulfide evolution water surface and entering atmosphere, cause black and odorous water.
Black and odorous water not only compromises human settlement environment in city, but also has seriously affected city image, how to effectively inhibit
Black and odorous water, reply self-purification of water function have become urgent problem to be solved in water environment pollution control.People is generallyd use now
The method of work aeration administers black and odorous water, increases the dissolved oxygen concentration in water by manual method, so that black and odorous water
Become the circulating water rich in oxygen, to improve the self-purification capacity of water body.But the technical costs of artificial aeration is high, oxygen benefit
With low efficiency, phytal zone using when may also will cause bed mud and turn over, discharge certain pollutant, therefore, still have improved
Space.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of black and odorous water administering method, have
At low cost, simple and convenient advantage.
To achieve the above object, the present invention provides the following technical scheme that
A kind of black and odorous water administering method, comprising the following steps:
S1, dissolution flocculant；
S2, the flocculant solution of dissolution is sprinkled into black and odorous water；
S3, flocculant and the sediment that the particle suspension object in water body is formed are salvaged；
The flocculant includes the component of following mass fraction:
120-160 parts of polyacrylamide；
7.5-10 parts of ferrous sulfate；
7.5-10 parts of silica dioxide gel；
1.5-2 parts of coupling agent.
By adopting the above technical scheme, by being sprinkled into flocculant into black and odorous water, then suspended matter and flocculant are formed
Sediment salvaging gets up the improvement to black and odorous water can be completed, easy to operate, and flocculant price is low, advantageously reduces improvement
Cost, so that economic benefit improves；By the way that ferrous sulfate is added in flocculant, ferrous sulfate is good flocculation aid, favorably
In the deposition efficiency and adsorption efficiency that improve flocculant, so that the suspended matter in black and odorous water is easier in conjunction with polyacrylamide
With sedimentation, to be conducive to improve the clean effect and detersive efficiency of flocculant；Meanwhile ferrous sulfate is production titanium dioxide
Waste is easily obtained, low in cost, is improved the utilization efficiency of resource, is met
Environmentally protective requirement；By the way that silica dioxide gel is added, silica dioxide gel has the function of adsorbing peculiar smell, be conducive to black
The peculiar smell generated in smelly water body is adsorbed, so that black and odorous water is not easy to give an offensive smell；Silica dioxide gel surface is easy to inhale
Water forms silicone hydroxyl, and the polarity of silicone hydroxyl is larger, and the polarity of the amide groups on polyacrylamide is also larger, so that adjacent
Hydrogen bond easy to form between polyacrylamide between silica, adjacent and between silica and polyacrylamide, has
Conducive to entangled to each other to form reticular structure between molecule, so that chain-chain contact point in flocculant solution is increased, and then advantageous
In the viscosity of reinforced polypropylene amide, so that flocculant solution is in gel, so that the suspended matter in water body is easier and flocculation
Dosage form, to remove, is conducive to the clean effect and detersive efficiency that improve flocculant at precipitating；Meanwhile silica and polypropylene
Hydrogen bond is formed between amide, is conducive to polyacrylamide amine molecule and is in extended state always, is conducive to the molecule of polyacrylamide
Chain keeps reticular structure, and the strand for reducing polyacrylamide is easy the case where rolling up, so that polyacrylamide and water body
Contact area increase so that suspended matter in water body is easier contact with polyacrylamide and form floc sedimentation and precipitate, Jin Eryou
Conducive to the detersive efficiency and clean effect for improving flocculant, so that floc sedimentation precipitating is faster；By the way that coupling agent is added, be conducive to increase
The compatibility between organic principle and inorganic constituents in strong flocculant, so that flocculant is more stable, to be conducive to improve
The clean effect of flocculant.
The present invention is further arranged to: the flocculant further includes the component of following mass fraction:
15-20 parts of hypochlorous acid.
By adopting the above technical scheme, by the way that hypochlorous acid is added, hypochlorous acid has the function of bleaching, sterilization, disinfection, can be used as
Deodorant, bleaching agent and disinfectant are conducive to remove the stink in black and odorous water, are conducive to black and odorous water and reply cleaning；Together
When, hypochlorous acid has oxidisability, be easy ferrous ions in acid condition into iron ion, iron ion be easy in water body
Phosphate anion in conjunction with formed precipitating and be removed, so that the phosphorus content in black and odorous water is advantageously reduced, so that water body matter
Amount improves；In addition, hypochlorous acid is very unstable, hydrochloric acid and oxygen are easily decomposed under illumination condition, hydrochloric acid is conducive to keep water
The acidity of body so that the ferrous ion in water body is easier to be oxidized to iron ion, and then is conducive to iron ion and phosphoric acid
Root knot closes to form precipitating, so that the phosphorus content of water body reduces；Hypochlorous acid, which decomposes, generates oxygen, is conducive to increase the dissolved oxygen in water
Concentration is conducive to the self-purification capacity for improving water body so that water body becomes the circulating water rich in oxygen, while being conducive to inhibit anaerobism
The breeding of bacterium so that microorganisms in water by anaerobic system become better oxygen system convert, advantageously reduce the generation of black and odorous water.
The present invention is further arranged to: the flocculant further includes the component of following mass fraction:
1.5-2 parts of dilute sulfuric acid.
By adopting the above technical scheme, by the way that dilute sulfuric acid is added, be conducive to the acidity for increasing water body, thus be conducive to it is ferrous from
Son is converted into the progress of the reaction of iron ion, so that the iron ion in water body increases, and then is conducive to iron ion and phosphoric acid root knot
It closes and forms precipitating to remove, so that the phosphorus content in water body is reduced, be conducive to the quality for improving water body；Simultaneously as sulfuric acid is sub-
Contain sulfate ion in iron, dilute sulfuric acid is added and is not easy to introduce other impurities.
The present invention is further arranged to: the partial size of the polyacrylamide is 100-120 mesh.
By adopting the above technical scheme, be 100-120 mesh by the partial size of polyacrylamide, polyacrylamide in powdered,
Be conducive to the dissolution of polyacrylamide, so that polyacrylamide dissolution is more complete, to be conducive to improve the absorption of flocculant
Efficiency and adsorption effect.
The present invention is further arranged to: the coupling agent is silane coupling agent.
By adopting the above technical scheme, by using silane coupling agent as coupling agent, according to similar intermiscibility principle, silane
Contain element silicon in coupling agent and silica dioxide gel, is conducive to improve the phase between silane coupling agent and silica dioxide gel
Capacitive, so that the coupling effect of silane coupling agent improves, to be conducive to improve the relative stability of flocculant；Meanwhile silane
Coupling agent needs first to hydrolyze to form silanol in coupling process, and the silicone hydroxyl polarity that silanol contains is stronger, be easy with silica or
Form hydrogen bond with polyacrylamide, thus be conducive to it is entangled to each other to form reticular structure between molecule so that flocculant
Consistency increases, so that the suspended matter in water body is easier to form precipitating in conjunction with flocculant, is conducive to improve flocculant
Scavenging effect and decontamination efficiency.
The present invention is further arranged to: the solvent in the step S1 for dissolving flocculant is water.
By adopting the above technical scheme, the solvent by using water as flocculant is conducive to the solubility for increasing flocculant,
So that flocculant dissolution is more complete, meanwhile, water is nontoxic, is easily obtained, and advantageously reduces cost, increases economic efficiency
It is good for the environment simultaneously.
The present invention is further arranged to: in the step S2, uniformly being sprayed the flocculant solution of dissolution using injector head
Into in black and odorous water.
By adopting the above technical scheme, the flocculant solution of dissolution is uniformly sprayed by using injector head and enters black and odorous water
In, flocculant solution is pressed into inside black and odorous water using the pressure of injector head, so that the sewage for being placed in black and odorous water depths is equal
It can be come into full contact with flocculant, to be conducive to the abundant removal of the dirt in black and odorous water, so that clean effect is more preferable.
The present invention is further arranged to: in the step S2, being sprinkled into the quality of the flocculant solution in black and odorous water to need
The 10%-20% of the black and odorous water quality to be administered.
By adopting the above technical scheme, by the quality for the flocculant solution being sprinkled into black and odorous water be need administer it is black smelly
The 10%-20% of Water quality, is conducive to the clean effect for improving flocculant, and the dirt be conducive in black and odorous water completely removes
While advantageously reduce the excessive and wasting situation of dosage of flocculant, while advantageously reducing the dosage mistake of flocculant
The case where clean effect that is more and leading to flocculant declines.
In conclusion the invention has the following advantages:
1. salvaging i.e. by being sprinkled into flocculant into black and odorous water, then by the sediment that suspended matter and flocculant are formed
The achievable improvement to black and odorous water, it is easy to operate, and flocculant price is low, advantageously reduces treatment cost, so that economic effect
Benefit improves；
2. ferrous sulfate is good flocculation aid by the way that ferrous sulfate is added in flocculant, be conducive to improve flocculant
Deposition efficiency and adsorption efficiency so that suspended matter in black and odorous water is easier to settle with polyacrylamide ining conjunction with, thus
Be conducive to improve the detersive efficiency of flocculant；
3. ferrous sulfate is the waste for producing titanium dioxide, it is easily obtained, it is low in cost, advantageously reduce treatment cost
Simultaneously the utilization efficiency of resource is improved, meets environmentally protective requirement；
4. silica dioxide gel surface is easy water suction and forms the biggish silicone hydroxyl of polarity, so that adjacent silica
Between, hydrogen bond easy to form between adjacent polyacrylamide and between silica and polyacrylamide, be conducive to molecule
Between it is entangled to each other to form reticular structure, be conducive to flocculant solution in gel, so that the suspended matter in water body is easier
Precipitating is formed to remove with flocculant, is conducive to the clean effect for improving flocculant；
5. forming hydrogen bond between silica and polyacrylamide, the strand for being conducive to polyacrylamide keeps netted knot
Structure, so that the contact area of polyacrylamide and water body increases, so that the suspended matter in water body is easier and polyacrylamide
Amine contacts and forms floc sedimentation precipitating, and then is conducive to improve the detersive efficiency and clean effect of flocculant, so that floc sedimentation precipitates
Faster.
Specific embodiment
With reference to embodiments, invention is further described in detail.
Embodiment 1
A kind of black and odorous water administering method, comprising the following steps:
S1, dissolution flocculant, specific as follows:
Flocculant is added in stirred tank, is stirred with the revolving speed not higher than 50r/min, water is added while stirring, until wadding
Solidifying agent is completely dissolved, and stops stirring, forms flocculant solution.
Flocculant includes the component of following mass fraction:
Polyacrylamide 120kg；Ferrous sulfate 7.5kg；Silica dioxide gel 7.5kg；Silane coupling agent 1.5kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 7.5kg is added, is stirred with the revolving speed of 20r/min
It mixes, polyacrylamide 120kg, silica dioxide gel 7.5kg, silane coupling agent 1.5kg is added while stirring, stirs evenly, i.e.,
Obtain flocculant.
Ferrous sulfate uses ferrous sulfate generally in the art, specifically, using the green ring water purification in Zhengzhou in the present embodiment
The ferrous sulfate of Materials Co., Ltd.
Polyacrylamide uses polyacrylamide generally in the art, specifically, blue using Guangzhou in the present embodiment
The partial size of vane environmental protection Science and Technology Ltd. is 601 type high polymer polyacrylamides of 100 mesh.
Silica dioxide gel uses silica dioxide gel generally in the art.
Silane coupling agent uses silane coupling agent generally in the art, specifically, grand using Zhengzhou in the present embodiment
The silane coupling agent of the model KH560 of Chemical Co., Ltd..
S2, the flocculant solution of dissolution is sprinkled into black and odorous water, specific as follows:
It is first laid in black and odorous water and engraves filter cloth, so that the bottom of filter cloth covering black and odorous water.Taking quality again is needs
10% flocculant solution of the quality of the black and odorous water of improvement is uniformly sprayed flocculant solution to black smelly water by injector head
The depths of body and the upper surface for being uniformly sprayed to black and odorous water, so that flocculant comes into full contact with black and odorous water, is sufficiently mixed.
S3, flocculant and the sediment that the particle suspension object in water body is formed are salvaged, specific as follows:
Black and odorous water is stirred, after standing 20min, filter cloth is packed up from black and odorous water, so that flocculant and water body be hanged
The precipitating that floating object is formed salvages, to complete the improvement of black and odorous water.
Embodiment 2
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 140kg；Ferrous sulfate 8.7kg；Silica dioxide gel 8.8kg；Silane coupling agent 1.7kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 8.7kg is added, is stirred with the revolving speed of 20r/min
It mixes, polyacrylamide 140kg, silica dioxide gel 8.8kg, silane coupling agent 1.7kg is added while stirring, stirs evenly, i.e.,
Obtain flocculant.
In this embodiment, silane coupling agent uses the silane of the model 174 of Dongguan City Ding Hai plastic cement Chemical Co., Ltd.
Coupling agent kh-570.
In the present embodiment, the partial size of polyacrylamide is 110 mesh.
In step s 2, taking quality is 15% flocculant solution for needing the quality for the black and odorous water administered.
Embodiment 3
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 160kg；Ferrous sulfate 10kg；Silica dioxide gel 10kg；Silane coupling agent 2kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 10kg is added, is stirred with the revolving speed of 20r/min,
Polyacrylamide 160kg, silica dioxide gel 10kg, silane coupling agent 2kg are added while stirring, stirs evenly to get flocculation
Agent.
In this embodiment, silane coupling agent uses the article No. of Henan Yong Jia chemical products Co., Ltd for the silane of 223-1
Coupling agent KH-550.
In the present embodiment, the partial size of polyacrylamide is 120 mesh.
In step s 2, taking quality is 20% flocculant solution for needing the quality for the black and odorous water administered.
Embodiment 4
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 155kg；Ferrous sulfate 8kg；Silica dioxide gel 9kg；Silane coupling agent 1.8kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 8kg is added, is stirred with the revolving speed of 20r/min,
Polyacrylamide 155kg, silica dioxide gel 9kg, silane coupling agent 1.8kg are added while stirring, stirs evenly to get flocculation
Agent.
In this embodiment, silane coupling agent uses Dongguan City Lv Wei plasthetics Co., Ltd's article No. even for 122 silane
Join agent Si-69.
In the present embodiment, the partial size of polyacrylamide is 105 mesh.
In step s 2, taking quality is 17% flocculant solution for needing the quality for the black and odorous water administered.
Embodiment 5
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 140kg；Ferrous sulfate 8.7kg；Silica dioxide gel 8.8kg；Silane coupling agent 1.7kg；Secondary chlorine
Sour 15kg；Dilute sulfuric acid 1.5kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 8.7kg is added, is stirred with the revolving speed of 20r/min
Mix, while stirring be added polyacrylamide 140kg, silica dioxide gel 8.8kg, silane coupling agent 1.7kg, hypochlorous acid 15kg,
Dilute sulfuric acid 1.5kg, stirs evenly to get flocculant.
Hypochlorous acid uses hypochlorous acid generally in the art.
Dilute sulfuric acid uses dilute sulfuric acid generally in the art.
In embodiment, the partial size of polyacrylamide is 102 mesh.
In step s 2, taking quality is 11% flocculant solution for needing the quality for the black and odorous water administered.
Embodiment 6
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 140kg；Ferrous sulfate 8.7kg；Silica dioxide gel 8.8kg；Silane coupling agent 1.7kg；Secondary chlorine
Sour 17.5kg；Dilute sulfuric acid 1.7kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 8.7kg is added, is stirred with the revolving speed of 20r/min
It mixes, polyacrylamide 140kg, silica dioxide gel 8.8kg, silane coupling agent 1.7kg, hypochlorous acid is added while stirring
17.5kg, dilute sulfuric acid 1.7kg, stir evenly to get flocculant.
Hypochlorous acid uses hypochlorous acid generally in the art.
Dilute sulfuric acid uses dilute sulfuric acid generally in the art.
In this embodiment, silane coupling agent uses the silane of the model 174 of Dongguan City Ding Hai plastic cement Chemical Co., Ltd.
Coupling agent kh-570.
In the present embodiment, the partial size of polyacrylamide is 113 mesh.
In step s 2, taking quality is 18% flocculant solution for needing the quality for the black and odorous water administered.
Embodiment 7
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 140kg；Ferrous sulfate 8.7kg；Silica dioxide gel 8.8kg；Silane coupling agent 1.7kg；Secondary chlorine
Sour 20kg；Dilute sulfuric acid 2kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 8.7kg is added, is stirred with the revolving speed of 20r/min
Mix, while stirring be added polyacrylamide 140kg, silica dioxide gel 8.8kg, silane coupling agent 1.7kg, hypochlorous acid 20kg,
Dilute sulfuric acid 2kg, stirs evenly to get flocculant.
Hypochlorous acid uses hypochlorous acid generally in the art.
Dilute sulfuric acid uses dilute sulfuric acid generally in the art.
In this embodiment, silane coupling agent uses Dongguan City Lv Wei plasthetics Co., Ltd's article No. even for 122 silane
Join agent Si-69.
In the present embodiment, the partial size of polyacrylamide is 119 mesh.
In step s 2, taking quality is 14% flocculant solution for needing the quality for the black and odorous water administered.
Comparative example 1
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 140kg.
Comparative example 2
The difference from embodiment 1 is that:
Flocculant includes the component of following mass fraction:
Polyacrylamide 140kg；Ferrous sulfate 8kg.
Flocculant the preparation method is as follows:
In the stirred tank of 200L, under normal temperature condition, ferrous sulfate 8kg is added, is stirred with the revolving speed of 20r/min,
Polyacrylamide 140kg is added while stirring, stirs evenly to get flocculant.
Comparative example 3
The difference from embodiment 1 is that:
In step s 2, taking quality is 5% flocculant solution for needing the quality for the black and odorous water administered.
Comparative example 4
The difference from embodiment 1 is that:
In step s 2, taking quality is 25% flocculant solution for needing the quality for the black and odorous water administered.
The detection data of each embodiment is shown in Table 1, and the detection data of each comparative example is shown in Table 2.
Experiment 1
The suspension in the water body before flocculant is added is detected according to GB11901-89 " the measurement gravimetric method of water quality suspended matter "
Object content a (mg/L), then the suspension content b (mg/L) being added in the purified water body of flocculant is detected, according to (a-b/a) *
100% calculates the removal rate (%) of suspended matter.
Experiment 2
The water body before flocculant is added is detected according to GB11914-89 " the measurement dichromate titration of water chemical oxygen demand "
In COD content c (mg/L), then detect be added the purified water body of flocculant in COD content d (mg/L), according to (c-d/
C) removal rate of * 100% calculating COD.
Experiment 3
It takes each embodiment and comparative example to prepare resulting flocculant solution 10mL respectively to be added into 100mL sewage, remember
There is the time (min) of floc sedimentation sediment and time (min) that floc sedimentation precipitates completely in record sewage.
Table 1
Table 2
According in table 2 comparative example 1 and the data comparison of comparative example 2 can obtain, the component of the flocculant used in comparative example 2
Than the flocculant that is used in comparative example 1 component more than ferrous sulfate, and the removal efficiency of comparative example 2 is much higher than and compares
Example 1, and there are raising to a certain extent in the time of the appearance floc sedimentation sediment of comparative example 2 and precipitating complete time,
Thus, by the way that ferrous sulfate is added, ferrous sulfate has good Coagulation aiding, is conducive to flocculant and preferably adsorbs dirt
Suspended matter in water simultaneously forms precipitating, while making suspended matter and precipitating of the flocculant quickly in absorption effluent, thus favorably
In the clean effect and detersive efficiency that improve flocculant, so that the removal rate of suspended matter improves, so that the sedimentation time shortens.
According in table 1 embodiment 1-4 and the data comparison of the comparative example 2 in table 2 can obtain, used in embodiment 1-4
The component of the flocculant used in the component ratio comparative example 2 of flocculant more silica dioxide gel and silane coupling agents, and it is real
The removal efficiency and COD removal rate for applying a 1-4 are above comparative example 2, and the appearance floc sedimentation sediment of embodiment 1-4
Time and precipitating complete time be below comparative example 2, thus, even by the way that silica dioxide gel and silane is added
Join agent, due to the great silicone hydroxyl of silica dioxide gel surface polarity easy to form, silane coupling agent also holds in coupling process
The facile hydrolysis formation stronger silicone hydroxyl of polarity, and the also stronger amide groups containing polarized on polyacrylamide, thus adjacent silicon hydroxyl
Between base, hydrogen bond easy to form between neighboring amide base and between silicone hydroxyl and amide groups, to be conducive between molecule
It is entangled to each other, so that the chain of flocculant-chain contact point is increased, to be conducive to the viscosity for enhancing flocculant to form reticular structure, into
And the suspended matter in sewage is made to be easier to be adsorbed and formed precipitating, so that removal efficiency and COD removal rate mention
Height, while being conducive to shorten the formation time and time for precipitating completely of sediment of floc sedimentation sediment；In addition, shape between molecule
At hydrogen bond, the strand for being conducive to polyacrylamide keeps the state of stretching, extension, so that contact of the polyacrylamide amine molecule with sewage
Area increases, so that the suspended matter in water body is easier to contact with polyacrylamide strand and form precipitating, Jin Eryou
Conducive to removal efficiency and COD removal rate is improved, so that the formation time of floc sedimentation precipitating and the time contracting precipitated completely
It is short.
It can be obtained according to the data comparison of the embodiment 1-4 and embodiment 5-7 in table 1, the flocculant used in embodiment 5-7
Component ratio embodiment 1-4 in the component of flocculant that uses increased hypochlorous acid and dilute sulfuric acid newly, and the suspension of embodiment 5-7
Object removal rate and COD removal rate are above embodiment 1-4, thus, by the way that hypochlorous acid is added, hypochlorous acid has oxidation
Property, it is easy in acid condition by the ferrous ions in water body into iron ion, by the way that dilute sulfuric acid is added, is conducive to keep water
The acidity of body, so that being conducive to ferrous ion is oxidized to iron ion, iron ion is easy to be formed in conjunction with the phosphate radical in water body
Precipitating, to be conducive to remove the phosphorus in water body, so that removal efficiency and COD removal rate improve；In addition, hypochlorous acid
It is unstable under illumination condition, it is easy to be decomposed to form hydrochloric acid and oxygen, so that the dissolved oxygen concentration in water improves, to be conducive to
Water body becomes oxygen-enriched circulating water, be conducive to improve water body self-purification capacity, while be conducive to inhibit water body in anaerobic bacteria it is numerous
It grows, is conducive to microorganisms in water by anaerobic system and is converted into aerobic system, so that COD removal rate greatly improves, be conducive to
Reduce the generation of black and odorous water.
According in table 1 embodiment 1-4 and the data comparison of comparative example 3 can obtain, the flocculant used in embodiment 1-4
Quality is the 10%-20% for needing the black and odorous water quality administered, and the quality of the flocculant used in comparative example 3 is controlled for needs
The 5% of the black and odorous water quality of reason, and the removal efficiency of embodiment 1-4 is above comparative example 3, it was demonstrated that by by flocculant
Using quality control in the range of the 10%-20% of black and odorous water quality, be conducive to improve flocculant adsorption efficiency with
And adsorption effect；Meanwhile the appearance floc sedimentation sediment time in comparative example 3 is longer than embodiment 1-4, but the sedimentation time completely compares
Embodiment 1-4's is short, illustrates that the dosage of flocculant is insufficient, and the suspended matter in sewage does not form precipitating completely, so that outstanding
Floating object removal rate reduces.
According in table 1 embodiment 1-4 and the data comparison of comparative example 3 can obtain, the flocculant used in embodiment 1-4
Quality is the 10%-20% for needing the black and odorous water quality administered, and the quality of the flocculant used in comparative example 4 is controlled for needs
The 25% of the black and odorous water quality of reason, and embodiment 1-4 suspension removal rate is above comparative example 4, but comparative example 4 is wadded a quilt with cotton
The time of group's sediment and the time precipitated completely are shorter than embodiment 1-4, illustrate that the flocculant usage being added is excessive,
Although excessive flocculant can shorten the sedimentation time, excessive flocculant is added and is also easy to influence the absorption effect of flocculant simultaneously
Fruit so that removal efficiency reduces, and causes to waste.
It can be obtained according to comparative example 1-4 in embodiment 1-4 in table 1 and table 2 and the data comparison of embodiment 5-7 in table 1, it is real
The component for applying the flocculant used in a 1-4 and comparative example 1-4 does not contain hypochlorous acid, the flocculant used in embodiment 5-7
Component in contain hypochlorous acid, and the COD removal rate of embodiment 1-4 is close with the COD removal rate of comparative example 1-4, and embodiment
The COD removal rate of 5-7 is above embodiment 1-4 and comparative example 1-4, has illustrated that it is secondary for improving the main component of COD removal rate
Chloric acid mainly decomposites oxygen by hypochlorous acid to improve COD removal rate.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of black and odorous water administering method, it is characterized in that: the following steps are included:
S1, dissolution flocculant；
S2, the flocculant solution of dissolution is sprinkled into black and odorous water；
S3, flocculant and the sediment that the particle suspension object in water body is formed are salvaged；
The flocculant includes the component of following mass fraction:
120-160 parts of polyacrylamide；
7.5-10 parts of ferrous sulfate；
7.5-10 parts of silica dioxide gel；
1.5-2 parts of coupling agent.
2. black and odorous water administering method according to claim 1, it is characterized in that: the flocculant further includes following mass parts
Several components:
15-20 parts of hypochlorous acid.
3. black and odorous water administering method according to claim 2, it is characterized in that: the flocculant further includes following mass parts
Several components:
1.5-2 parts of dilute sulfuric acid.
4. black and odorous water administering method according to claim 1 to 3, it is characterized in that: the partial size of the polyacrylamide
For 100-120 mesh.
5. black and odorous water administering method according to claim 1 to 3, it is characterized in that: the coupling agent is silane coupled
Agent.
6. black and odorous water administering method according to claim 1 to 3, it is characterized in that: for dissolving in the step S1
The solvent of flocculant is water.
7. black and odorous water administering method according to claim 1 to 3, it is characterized in that: in the step S2, using spray
It penetrates head and uniformly sprays the flocculant solution of dissolution and enter in black and odorous water.
8. black and odorous water administering method according to claim 1 to 3, it is characterized in that: being sprinkled into black in the step S2
The quality of flocculant solution in smelly water body is the 10%-20% for needing the black and odorous water quality administered.
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| CN201811614639.3A CN109607721A (en) | 2018-12-27 | 2018-12-27 | Black and odorous water administering method |
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| CN111573988A (en) * | 2020-05-29 | 2020-08-25 | 南京浦世环境科技发展有限公司 | In-situ remediation method for black and odorous water body |
| CN113003687A (en) * | 2021-04-19 | 2021-06-22 | 辽宁省生态环境保护科技中心 | Resource ecological treatment method for black and odorous water body |
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| CN117069223A (en) * | 2023-09-28 | 2023-11-17 | 知和环保科技有限公司 | Method for in-situ treatment of algae and black and odorous water body |
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| CN110255685A (en) * | 2019-06-14 | 2019-09-20 | 中国石油大学(华东) | A kind of flocculant and preparation method thereof administered for black and odorous water |
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| CN117069223A (en) * | 2023-09-28 | 2023-11-17 | 知和环保科技有限公司 | Method for in-situ treatment of algae and black and odorous water body |
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Application publication date: 20190412 |