CN105859106A - Sludge conditioner and application thereof in sludge dehydration - Google Patents
Sludge conditioner and application thereof in sludge dehydration Download PDFInfo
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- CN105859106A CN105859106A CN201610466083.2A CN201610466083A CN105859106A CN 105859106 A CN105859106 A CN 105859106A CN 201610466083 A CN201610466083 A CN 201610466083A CN 105859106 A CN105859106 A CN 105859106A
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical 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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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Abstract
The invention belongs to the technical field of comprehensive treatment of solid wastes and particularly relates to a sludge conditioner and an application thereof in sludge deep dehydration. The sludge conditioner is prepared from heptadecyl dihydroxyethyl imidazoline quaternary ammonium salt, polyvinylpyrrolidone and polyaluminum ferric silicate by proper steps in proper temperature condition. When in use, the sludge is measured based on the amount of absolutely dry sludge, and the addition amount of effective substances of the sludge conditioner is 0.8-2% of the sludge mass. The invention has the following main technical advantages: the components of the sludge conditioner are relatively environment-friendly without toxicity or harm; the preparation technology is simple, the dosage is relatively small, and the conditioning is convenient; and the technical defects of large usage amount, equipment loss, potential harm to environment and the like of the existing conditioner can be overcome relatively well. Practical experiments indicate that the water content of sludge after conditioning and filter pressing can be reduced to below 60%, and a relatively good deep dehydration effect is realized.
Description
Technical field
The invention belongs to solid waste comprehensive treatment technique field, be specifically related to a kind of sludge conditioner and at mud
Application in deep dehydration.
Background technology
Currently, constantly accelerate along with Urbanization in China and the improving constantly of people's living standard, industrial wastewater
Increasing year by year with the discharge capacity of sanitary sewage, the thing followed is exactly increasing sharply of the sludge yield in sewage disposal process.
Statistics shows, the mud that China produces every year, as with over dry mud gauge, will be greater than 30,000,000 tons.
Mud be in sewage disposal process produce a kind of sticky mass, the large amount of organic wherein contained, heavy metal,
Pathogenic microorganism etc., microorganism therein, with aerobic, anaerobe as type of subject, has that the content of organic matter is high and water body
Compact feature, is a kind of typical solid waste, and as can not get properly disposing, harmful components therein will be to environment
Cause serious secondary pollution.
The moisture content of general Sewage Plant second pond mud is 97 ~ 99%, and wherein Interstitial Water accounts for 70%, and it is left that capillary water accounts for 20%
The right side, absorption water is about 7%, and intracellular water is about 3%.The mud of high-moisture percentage is relatively big due to volume, easily corrupt, adds and is difficult to transport
With directly process, thus often contained humidity in mud need to be carried out appropriate separation, to reduce its moisture content.But due in mud
The combination of all kinds of materials and water body is more tight, thus is the first step of Treatment of Sludge to the deep dehydration of mud.
In prior art, the deep dehydration of mud is mainly carried out by the plant equipment such as pressure filter and centrifugal dehydrator
, thus for the deep dehydration of mud improves, on the one hand concentrate on the improvement of plant equipment, as improved the squeezing of pressure filter
This one side of efficiency, the early stage on the other hand concentrating on mud processes, i.e. sludge conditioning aspect.Owing to the improvement of plant equipment is subject to
It is limited to the impact of the aspect factor such as frame for movement, plant capacity, improves room for promotion relatively limited, thus sludge conditioning is current dirt
The main improvement direction that mud deep dehydration processes.
The main purpose of sludge conditioning is to change sludge characteristics, promotes dehydration property, makes most water in mud
Divide and be changed into the Free water that can remove mechanically；Take into account sterilization simultaneously and promote organic decomposition, consequently facilitating
The deep dehydration in later stage and harmless treatment.Existing sludge conditioning method mainly has physical modulated logos, chemical conditioning method and biology
Conditioning method three major types, three kinds of methods have application in practice, but based on chemical conditioning method, reason is chemical conditioning method behaviour
Making simple, cost of investment is relatively low, and conditioning effect is more stable, is to compare rational method at present.
At present conventional chemical conditioning is by adding certain flocculant in mud, such as: ferric chloride+Calx, have
The polymeric conditioner of machine such as polyacrylamide etc., the flocculant added or mud micelle surface occur chemical reaction, or
With electric charge in mud colloidal solid in person, and then the colloidal state structure of destruction mud, thus reduce the affinity between muddy water, finally
By adjusting floc particle group property and ordered state thereof, making flco cohesiveness strengthen, granule becomes big, it is achieved dewatering performance of sludge
Improvement.But there are some obvious defects in the type of existing flocculant, such as: the ferric chloride corruption to subsequent mechanical dehydration equipment
Erosion property is relatively big, and added amount of chemical is big, causes chloride ion content in filtrate high, adds the difficulty that mud filtrate processes by the later stage
Degree；Adding of technical grade Calx easily increases the load that equipment processes, and easily causes the blocking of pipeline, filter cloth simultaneously；And poly-third
The organic high polymer coagulants such as acrylamide act on the Interstitial Water of mud, and the deep dehydration effect to mud is little, thus improves
Effect is relatively limited.Based on these defects, design new sludge conditioner and still there is highly important value.
Summary of the invention
It is an object of the present invention to provide a kind of new sludge conditioner such that it is able to preferably improve the dewatering of mud,
It is easy to the deep dehydration of mud.
The main technical schemes brief introduction of the present invention is as follows.
A kind of sludge conditioner, uses following steps to be prepared from:
(1) under the conditions of 60 DEG C ~ 80 DEG C, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt and polyvinylpyrrolidone are dissolved in water
In and mix and blend 1 ~ 3 hour；It is preferably, mix and blend 2 hours under the conditions of 70 DEG C；
(2) poly aluminium iron silicate, stirring mixing are added after the solution being uniformly mixed in step (1) being cooled to 30 DEG C ~ 50 DEG C
Uniformly, then regulation pH value is to pH=2.0 ~ 4.0, and this is sludge conditioner provided by the present invention；It is preferably, is cooled to 40
DEG C time add poly aluminium iron silicate, pH value is preferably adjusted to pH=3.0；
By percentage to the quality, in sludge conditioner, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt content is 10 ~ 30%, poly-second
Alkene is 10 ~ 30% than pyrrolidone content, and aluminium silicate polymer iron content is 10 ~ 30%, and remaining is water；Preferable amount is: heptadecyl two
Hydroxyethyl imidazole hyamine content is 15%, and PVP content is 20%, and aluminium silicate polymer iron content is 15%；
The K value of described polyvinylpyrrolidone is K10 ~ K90；It is preferably polyvinylpyrrolidone K 90.
The preparation method of described sludge conditioner, specifically includes following steps:
(1) under the conditions of 60 DEG C ~ 80 DEG C, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt and polyvinylpyrrolidone are dissolved in water
In and mix and blend 1 ~ 3 hour；
(2) poly aluminium iron silicate, stirring mixing are added after the solution being uniformly mixed in step (1) being cooled to 30 DEG C ~ 50 DEG C
Uniformly, then regulation pH value is to pH=2.0 ~ 4.0, and this is sludge conditioner provided by the present invention；
By percentage to the quality, in sludge conditioner, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt content is 10 ~ 30%, poly-second
Alkene is 10 ~ 30% than pyrrolidone content, and aluminium silicate polymer iron content is 10 ~ 30%, and remaining is water；
The K value of described polyvinylpyrrolidone is K10 ~ K90.
The application in deeply dehydrating sludge of the described sludge conditioner, its use ratio is: mud with over dry mud gauge,
Sludge conditioner active substance dosage is the 0.8% ~ 2% of sludge quality, and preferable amount is 1%；Described sludge conditioner working substance
Matter be in sludge conditioner heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt, PVP and aluminium silicate polymer weight of iron it
With；
Using method is: it is said that in general, after sludge condensation, before deep dehydration processes, need to arrange sludge conditioning pond, now by than
Example adds sludge conditioner, after mix homogeneously, continuously stirred 10 ~ 30min in mud, to give full play to the tune of sludge conditioner
Reason effect, can enter deep dehydration flow processing after having nursed one's health；The pressure filter machinery dewatering process flow used as.
The application in deeply dehydrating sludge of the described sludge conditioner, it is when nursing one's health mud, and described mud generally contains
The mud of water rate >=85%, such as sludge of sewage treatment plant, alum sludge, industrial sludge etc..
Preliminary experiment shows, for the mud of moisture content >=85%, uses sludge conditioner provided by the present invention conditioning dirt
After mud, then after pressure filter mechanical dehydration, moisture content of the cake, can preferably can realize less than 60% compared with simple mechanical dehydration
The goal of the invention of deep dehydration.
Sludge conditioner provided by the present invention, its main technical principle is: polyvinylpyrrolidone can be to glue in mud
Body and fiber fines carry out flocculation modification, and then increase the rate of filtration of water in mud；And aluminium silicate polymer iron rule can be in mud
Form microcosmic skeleton and duct, it is ensured that the intensity of flco and cross the smooth and easy of aquaporin in follow-up pressure-filtering process.Heptadecyl two
The use of hydroxyethyl imidazole hyamine, on the one hand reduces the surface tension of water, reduces capillary pressure, decrease water simultaneously
Molecule is at the energy of adsorption on mud granule surface；On the other hand by electrostatic force, hydrogen bond force and surfactant molecule and albumen
The intermolecular hydrophobic bindings of matter etc. act on, and adsorb electronegative bacterial body, are gathered on cell wall, generating chamber's inhibition effect, and then
Bacterial growth can be made suppressed and dead, and its hydrophobic alkyl with the hydrophilic group effect of antibacterial, can also change the permeability of film simultaneously, continues
And there is lysis, destroy cellularity, cause dissolving and the death of cell, due to heptadecyl dihydroxy ethyl imidazoline season
Ammonium salt has stronger release effect to thalline extracellular polymeric (Extracellular Polymer Substances EPS), because of
And mud can be made to combine water content and reduce, the moisture (in conjunction with water) making a part be difficult to mechanically deviate from becomes easily abjection
Moisture (Free water).
Compared with existing conventional sludge conditioner, the major technique advantage of the present invention has: in sludge conditioner, each component is relatively
For environmental protection, nontoxic, preparation technology is easy, and usage amount is less, and conditioning is convenient, can preferably overcome existing conditioner usage amount
Greatly, lossy to equipment, environment is had the technological deficiencies such as potential hazard.And actual experiment shows, dirty after conditioned and filter pressing
Mud moisture content can be down to less than 60%, has preferably deep dehydration effect, thus has preferably application value.
Detailed description of the invention
Below in conjunction with embodiment, the application is further explained explanation, before introducing specific embodiment, to following enforcement
In example, partial material situation is briefly described as follows.
Sludge source:
Mud takes from the sludge concentration tank base sludge of the second sewage treatment plant of air harbor district, Zhengzhou；
Raw material prepared by sludge conditioner:
Heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt, technical grade, purchased from Shaanxi day young oil Chemical Co., Ltd.；
Polyvinylpyrrolidone, technical grade, purchased from Jiaozhuo Zhong Weite product pharmaceutcal corporation, Ltd；
Aluminium silicate polymer iron powder, technical grade, purchased from material for water treatment company limited of section of Gongyi City one hundred；
Detection equipment:
In following embodiment, after moisture percentage in sewage sludge and sludge dewatering, moisture content of the cake uses the OHAUS MB35 moisture test apparatus (U.S.
Ao Haosi company) measure.
Comparative example
For the concrete technical advantage of the present invention is described, inventor according to existing conventional dehydration methods, (adjust by ferric chloride+Lime And Sewage Sludge
Science and engineering skill) mud has been carried out deep dehydration, detailed process is:
As a example by pending moisture percentage in sewage sludge is 97.5%, each material dosage, with the over dry mud gauge of pending mud, is first thrown
Adding ferric chloride, ferric chloride dosage is 5%, stirs 30min；Feeding lime afterwards, Lime-Injecting amount is 15%, continuously stirred
30min；
Subsequently into (sheet frame) pressure filter dewatering process flow, design parameter is: enter the mud time 3 hours, the highest enter mud pressure 0.7MPa,
Squeeze pressure 1.2MPa, squeezes 10 minutes time.
After being dehydrated, detecting institute's moisture content of the cake, moisture content of the cake is 68.3%.
Embodiment 1
The sludge conditioner that the present embodiment is provided, uses following steps to be prepared from:
(1) under the conditions of 60 DEG C, by soluble in water with polyvinylpyrrolidone for heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt
Mix and blend 2 hours under the conditions of 300r/min；
(2) adding aluminium silicate polymer iron powder after the solution being uniformly mixed in step (1) being cooled to 30 DEG C, stirring mixing is all
Even, then regulation pH value is to pH=3.0, and this is sludge conditioner provided by the present invention；
By percentage to the quality, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt content is 30%, and PVP content is
10%, aluminium silicate polymer iron content is 10%, and remaining is water.
Polyvinylpyrrolidone uses PVP K30；
Before the sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, first the moisture content of pending mud is entered
Row detection, result shows, the moisture content of pending mud is 97.8%, and mud is with over dry mud gauge, sludge conditioner working substance
Matter dosage is the 0.8% of sludge quality, and after mix homogeneously, continuously stirred 20min, subsequently into (sheet frame) pressure filter dehydration stream
Journey, design parameter is: enter the mud time 3 hours, the highest enter mud pressure 0.7MPa, squeeze pressure 1.2MPa, squeeze 10 minutes time.
After being dehydrated, detecting obtained moisture content of the cake, result shows that obtained moisture content of the cake is 68.2%.
Embodiment 2
The sludge conditioner that the present embodiment is provided, preparation method is with embodiment 1, and only in set-up procedure (1), preparation temperature is 70
℃。
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.5%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 66.4%.
Embodiment 3
The sludge conditioner that the present embodiment is provided, preparation method is with embodiment 1, and only in set-up procedure (1), preparation temperature is 80
℃。
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.3%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 66.9%.
Embodiment 4
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter are with embodiment 2, only cold in set-up procedure (2)
But aluminium silicate polymer iron powder is added time to 40 DEG C.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.5%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 65.1%.
Embodiment 5
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter are with embodiment 4, only cold in set-up procedure (2)
But aluminium silicate polymer iron powder is added time to 50 DEG C.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.6%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 67.9%.
Based on above-described embodiment 1 ~ 5 it can be seen that under sludge conditioner consumption same case, using moisture content of the cake as
Standard, when preparing sludge conditioner, in the case of keeping other parameter constants, for preparation temperature, more excellent preparation parameter is: step
Suddenly in (1), temperature is 70 DEG C, and in step (2), temperature is 40 DEG C.
Embodiment 6
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter, with embodiment 4, i.e. keep preferably preparing temperature
Degree parameter, is adjusted change to the K value of polyvinylpyrrolidone, the present embodiment employing for polyvinylpyrrolidone K60.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.2%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 63.2%.
Embodiment 7
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter, with embodiment 4, i.e. keep preferably preparing temperature
Degree parameter, is adjusted change to the K value of polyvinylpyrrolidone, the present embodiment employing for PVP K90.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.3%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 61.7%.
From above-described embodiment 6,7 it can be seen that properly increase polyvinylpyrrolidone K value, can improve at deep dehydration
Reason effect.
Embodiment 8
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter, with embodiment 7, i.e. keep preferably preparing temperature
Degree parameter and the K value (employing PVP K90) of higher polyvinylpyrrolidone, suitably adjust the consumption of each material
Ratio, is specifically adjusted to:
By percentage to the quality, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt content is 10%, and PVP content is
20%, aluminium silicate polymer iron content is 20%.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.5%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 58.7%.
Embodiment 9
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter, with embodiment 7, i.e. keep preferably preparing temperature
Degree parameter and the K value (employing PVP K90) of higher polyvinylpyrrolidone, suitably adjust the consumption of each material
Ratio, is specifically adjusted to:
By percentage to the quality, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt content is 15%, and PVP content is
20%, aluminium silicate polymer iron content is 15%.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, and the moisture content of pending mud is
97.3%, sludge conditioner consumption and deep dehydration step are with embodiment 1, after being dehydrated, carry out obtained moisture content of the cake
Detection, result shows that obtained moisture content of the cake is 57.2%.
Embodiment 10
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter, with embodiment 9, i.e. keep preferably preparing temperature
Degree parameter and the K value (employing PVP K90) of higher polyvinylpyrrolidone, keep preferably joining of material simultaneously
Ratio.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, sludge conditioner usage and deep dehydration
Step with embodiment 1, only adjust sludge conditioner consumption be 1%(i.e., mud is with over dry mud gauge, sludge conditioner working substance
Matter dosage is the 1% of sludge quality)；The moisture content of pending mud is 97.6%, after being dehydrated, aqueous to obtained mud cake
Rate detects, and result shows that obtained moisture content of the cake is 55.7%.
Embodiment 11
The sludge conditioner that the present embodiment is provided, preparation method and preparation parameter, with embodiment 9, i.e. keep preferably preparing temperature
Degree parameter and the K value (employing PVP K90) of higher polyvinylpyrrolidone, keep preferably joining of material simultaneously
Ratio.
The sludge conditioner provided by the present embodiment is used for deeply dehydrating sludge, sludge conditioner usage and deep dehydration
Step with embodiment 1, only adjust sludge conditioner consumption be 1.5%(i.e., mud is with over dry mud gauge, and sludge conditioner is effective
Material dosage is the 1.5% of sludge quality)；The moisture content of pending mud is 97.6%, after being dehydrated, to obtained mud cake
Moisture content detects, and result shows that obtained moisture content of the cake is 61.5%.
From above-described embodiment 10,11 it can be seen that properly increase sludge conditioner consumption, deep dehydration effect can be improved
Really, but when consumption is excessive, instead and be unfavorable for promoting further dehydrating effect.
In a word, for summary embodiment and comparative example, sludge conditioner provided by the present invention is for improving the degree of depth
Dehydrating effect has certain benefit, and after preparation method and the usage amount suitably optimizing sludge conditioner, it has more
Significantly improve the advantage of deep dehydration, thus there is preferable application value.
Claims (8)
1. a sludge conditioner, it is characterised in that use following steps to be prepared from:
(1) under the conditions of 60 DEG C ~ 80 DEG C, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt and polyvinylpyrrolidone are dissolved in water
In and mix and blend 1 ~ 3 hour；
(2) poly aluminium iron silicate, stirring mixing are added after the solution being uniformly mixed in step (1) being cooled to 30 DEG C ~ 50 DEG C
Uniformly, pH value is then regulated to pH=2.0 ~ 4.0；
By percentage to the quality, in sludge conditioner, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt content is 10 ~ 30%, poly-second
Alkene is 10 ~ 30% than pyrrolidone content, and aluminium silicate polymer iron content is 10 ~ 30%, and remaining is water；
The K value of described polyvinylpyrrolidone is K10 ~ K90.
2. sludge conditioner as claimed in claim 1, it is characterised in that in step (1), under the conditions of 70 DEG C, stir 2 hours.
3. sludge conditioner as claimed in claim 1, it is characterised in that in step (2), be cooled to 40 DEG C, regulate pH=3.0.
4. sludge conditioner as claimed in claim 1, it is characterised in that in step (2), polyvinylpyrrolidone uses polyethylene
Ketopyrrolidine K90.
5. sludge conditioner as claimed in claim 1, it is characterised in that in step (2), heptadecyl dihydroxy ethyl imidazoline season
Amounts of ammonium salt is 15%, and PVP content is 20%, and aluminium silicate polymer iron content is 15%.
6. the preparation method of sludge conditioner described in claim 1, it is characterised in that specifically include following steps:
(1) under the conditions of 60 DEG C ~ 80 DEG C, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt and polyvinylpyrrolidone are dissolved in water
In and mix and blend 1 ~ 3 hour；
(2) poly aluminium iron silicate, stirring mixing are added after the solution being uniformly mixed in step (1) being cooled to 30 DEG C ~ 50 DEG C
Uniformly, then regulation pH value is to pH=2.0 ~ 4.0, and this is sludge conditioner provided by the present invention；
By percentage to the quality, in sludge conditioner, heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt content is 10 ~ 30%, poly-second
Alkene is 10 ~ 30% than pyrrolidone content, and aluminium silicate polymer iron content is 10 ~ 30%, and remaining is water；
The K value of described polyvinylpyrrolidone is K10 ~ K90.
7. the application in sludge dewatering of the sludge conditioner described in claim 1, it is characterised in that mud is with over dry sludge quantity
Meter, sludge conditioner active substance dosage is the 0.8% ~ 2% of sludge quality；Described sludge conditioner active substance is that mud is adjusted
Heptadecyl dihydroxy ethyl imidazoline quaternary ammonium salt, PVP and aluminium silicate polymer weight of iron sum in reason agent.
8. sludge conditioner application in sludge dewatering as claimed in claim 7, it is characterised in that sludge conditioner working substance
Matter dosage is the 1% of sludge quality.
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| CN107089786A (en) * | 2017-05-05 | 2017-08-25 | 昆明理工大学 | A kind of method that utilization aluminium ash improves municipal sludge dehydrating effect |
| CN111072256A (en) * | 2018-10-19 | 2020-04-28 | 上海申英环保科技有限公司 | Sludge dewatering method for plate and frame machine |
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| CN104628103A (en) * | 2013-11-14 | 2015-05-20 | 青岛水世界环保科技有限公司 | Novel water-supply composite water treatment agent |
| CN105036367A (en) * | 2015-09-08 | 2015-11-11 | 山东天庆科技发展有限公司 | Phosphorus-free corrosion and scale inhibitor with sterilizing effect and preparation method and application thereof |
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| WO2002076894A1 (en) * | 2001-03-23 | 2002-10-03 | Rhodia Chimie | Composition that can be used for conditioning sludge |
| CN102897879A (en) * | 2012-09-26 | 2013-01-30 | 暨南大学 | Inorganic-organic composite flocculant, preparation method and application thereof |
| CN104628103A (en) * | 2013-11-14 | 2015-05-20 | 青岛水世界环保科技有限公司 | Novel water-supply composite water treatment agent |
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| CN107089786A (en) * | 2017-05-05 | 2017-08-25 | 昆明理工大学 | A kind of method that utilization aluminium ash improves municipal sludge dehydrating effect |
| CN107089786B (en) * | 2017-05-05 | 2020-10-27 | 昆明理工大学 | Method for improving municipal sludge dewatering effect by using aluminum ash |
| CN111072256A (en) * | 2018-10-19 | 2020-04-28 | 上海申英环保科技有限公司 | Sludge dewatering method for plate and frame machine |
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Effective date of registration: 20200525 Address after: 450000 floor 25, building 1, No. 167, Zhongyuan Middle Road, Zhongyuan District, Zhengzhou City, Henan Province Patentee after: ZHONGYUAN ENVIRONMENTAL PROTECTION ZHENGZHOU SLUDGE NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 450000 No. 28, Ruida Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee before: ZHENGZHOU ZIYING ENERGY SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |