CN106608709A - Dehydrating agent for sludge, and preparation and application thereof - Google Patents

Dehydrating agent for sludge, and preparation and application thereof Download PDF

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Publication number
CN106608709A
CN106608709A CN201510706038.5A CN201510706038A CN106608709A CN 106608709 A CN106608709 A CN 106608709A CN 201510706038 A CN201510706038 A CN 201510706038A CN 106608709 A CN106608709 A CN 106608709A
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China
Prior art keywords
sludge
component
dehydrating agent
weight
inorganic oxide
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Pending
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CN201510706038.5A
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Chinese (zh)
Inventor
乔向利
乐志芳
齐连丽
赵斌元
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LYUCHENG INVESTMENT (SHANGHAI) Co.,Ltd.
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Wo Hua Environmental Protection Technology (shanghai) Co Ltd
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Priority to CN201510706038.5A priority Critical patent/CN106608709A/en
Publication of CN106608709A publication Critical patent/CN106608709A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/06Sludge reduction, e.g. by lysis

Abstract

The invention specifically relates to a dehydrating agent for sludge, and preparation and application thereof, belonging to the field of stabilization and reduction of sludge. The dehydrating agent for sludge comprises, by weight, 28 to 48 parts of an inorganic oxide component and 52 to 72 parts of an organic polymer component. When the dehydrating agent for sludge is used for treating oily sludge, high dehydration efficiency is obtained, and the water content of the oily sludge is reduced to 30 to 50% or below from original 98% or above; for oily sludge with water content of 95% or above, a water phase, a sludge phase and an oil phase of the oily sludge can be separated via homogenization and uniform mixing effect of the dehydrating agent; and a breakthrough is made to most conventional oil-removing and dehydration manners for oily sludge, and a complementary mode is employed in the invention to conduct key operation in reduction of oily sludge, i.e., separation of a water phase, a sludge phase and an oil phase.

Description

A kind of sludge dehydrating agent and its preparation and application
Technical field
The invention belongs to sludge stabilizing and minimizing field, and in particular to a kind of sludge dehydrating agent and its preparation and application.
Background technology
When oily sludge refers to that crude oil or product oil are mixed into soil or other medium, oil therein directly can not reclaim and May be to the mixture of the variform of environment.Oily sludge is mainly in oil exploitation, transport, refining and oil-containing Produce in sewage disposal process.These sludge typically contain substantial amounts of mineral oil, sulfide and heavy metal etc., and with evil It is smelly, great toxicity.If directly discharging without processing, larger pollution will be caused to soil, water body and plant in nature. Oily sludge is mainly characterized by:(1) aqueous many, volume is big, and a large amount of untreated oily sludges have become oil field and oil plant Heavy burden;(2) complicated component, intractability are big, use various chemical agents particularly during tertiary oil recovery in a large number, Further increase the difficulty of process;(3) the most harmful substance majorities such as discharge standard, salt, arsenic, hydrargyrum that exceed of harmful components are present in dirt In the middle of the moisture of mud, directly discharge can cause the severe contamination of environment, cause to damage the adverse consequencess such as farmland;(4) containing substantial amounts of Useless and combustible.
The disposal difficult point of oily sludge and focus on minimizing, because oily sludge yield it is very big, if do not had The minimizing work of effect is just difficult to effectively to carry out substantial amounts of oily sludge effectively harmless reducing the quality and volume of sludge Change and disposal of resources.The key of the minimizing work of oily sludge is to realize the three phase separation of oil-water-mud, and oily sludge Typically be difficult to carry out the solid separation of liquid by conventional precipitation and simple mechanical dehydration because in oily sludge water presence shape Formula in addition to a small amount of free water, major part be all in the form of Interstitial Water and internal junction Heshui or attached water, with solidss, Oil is bundled together, and forms the hydration shell of strong oil repellency on parcel surface.Therefore to processing in the quantization of oily sludge The oil removing and dehydration of oily sludge is it is critical only that, the mode of the oil removing and dehydration of existing most oily sludge is to complement each other, Rely on each other.
Petrochemical industry oily sludge there is no the effective dewatering of method and dehydrant at present.After the industry dehydration accomplished hitherto Moisture percentage in sewage sludge is 80-87%, brings extreme difficulties to the process of follow-up oily sludge, and such as fuel value is too low, and landfill etc..Pin A difficult problem to sludge dewatering, domestic and international research worker develop a series of sludge dewatering equipments and its dewatering, and dehydrant is mainly adopted With inorganic, organic or its mixed type flocculant.Inorganic flocculating agent such as iron salt, aluminium salt, calcium ion etc. are by electrically neutralization, compression Electric double layer, reduction repulsion current potential, so as to reduce the repulsive interaction between microgranule, reach the purpose of coagulation;Organic flocculant, it is such as poly- Acrylic amide is mainly by absorption and the bridge linking effect of macromolecular compound so that particles agglomerate together, is formed compared with big flocculating body And settle.
Find through the retrieval to prior art, 102583915 B of Chinese invention patent CN disclose a kind of Sludge in Oilfields Processing method.
100525941 C of Chinese invention patent CN disclose a kind of method of oily sludge harmless treatment, and the method is by oil-containing Sludge centralized collection is sent out to carrying out afterwards together mixing the liquid oily sludge that homogenizing forms stable equilibrium microorganism aerobic is transported to After ferment processing meanss carry out first time fermentation, being input to dewaterer carries out dehydration concentration.
Chinese invention patent CN102583915B discloses a kind of method for processing oily sludge, which is carried out initially with filter screen Secondary filter, wherein needing heating process;Then sludge is homogenized with polyacrylamide flocculant, carries out mechanical dehydration, Oily sludge moisture content after dehydration is about 62%.
Though above-mentioned existing method can reduce the moisture content of sludge, program is more complicated, takes long.And dehydrating effect It is low, further need to be lifted.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of sludge dehydrating agent and its prepare with should With to overcome oily sludge dewatering efficiency in prior art low and divide the technical problems such as oily difficulty.
For achieving the above object and other purposes, the present invention is achieved by the following technical solutions:
A kind of a first aspect of the present invention, there is provided sludge dehydrating agent, each component containing following weight portion:Inorganic oxide group Divide 28~48 weight portions, 52~72 parts of organic polymer component.
Preferably, the sludge dehydrating agent, each component containing following mass percent:Inorganic oxide component 28~48%, Organic polymer component 52~72%.
Preferably, the inorganic oxide component contains each component of following weight portion:0~15 weight portion of silica 1, oxygen Change 2~8 weight portion of magnesium, 5~10 weight portion of aluminium sesquioxide, 30~60 weight portion of ferrum oxide.
Preferably, the organic polymer component is selected from polyacrylamide, polyacrylic acid, sodium polyacrylate, polyvinylamine, poly- The combination of any one or more in Sodium allyl sulphonate, Polyethylene oxide.
No. CAS of the polyacrylamide is 9003-05-8;Molecular weight is 8,000,000-1,000 ten thousand.
Described polyacrylic No. CAS is 9007-20-9;Molecular weight is 200,000-40 ten thousand.
No. CAS of the sodium polyacrylate is 9003-04-7;Molecular weight is 200,000-40 ten thousand.
The polyvinylamine CAS is 49553-92-6;Molecular weight is 1,000,000-200 ten thousand.
The polypropylene sulfonate CAS is 9002-97-5;Molecular weight is 70,000-10 ten thousand.
The Polyethylene oxide CAS is 9004-95-9;Molecular weight is 1,000,000-200 ten thousand.
A second aspect of the present invention, there is provided the preparation method of aforementioned sludge dehydrating agent, comprises the steps:
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) organic polymer component aqueous solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product dirt Mud dehydrant.
A third aspect of the present invention, there is provided application of the aforementioned sludge dehydrating agent in oily sludge is processed.
Described oily sludge is that petrochemical plant or PETROLEUM PROCESSING industry are produced in production, transport, processing or wastewater treatment process Raw oily sludge or oil-containing biochemical sludge, typically in 85-98% or so, oil content is typically left in 5%-20% for its moisture content It is right.
Compared with prior art, the beneficial effects of the present invention is:
(1) sludge dehydrating agent of the invention has nucleocapsid structure, and core is inorganic oxide component, and shell is organic polymer component The flocculant of formation, in sludge dehydration process, high polymer coagulant can be preferential for the dehydrant of the nucleocapsid structure Pollutant in absorption waste water in its surface, or are acted on organic pollution by physical force, are entered And to its flocculation sediment;Skeleton knot can be formed under the mechanical pressure of sludge as the inorganic oxide component of core Structure, the removing for water in sludge provide passage, accelerate and increase the removal efficiency of water.
(2) adopt the sludge dehydrating agent of the present invention to process oily sludge, program is simple, only by sludge dehydrating agent and greasy dirt need to be contained Mud mix homogeneously, and place a period of time, so that it may it is dehydrated using mechanical dewatering equipment.
(3) oily sludge is processed using the sludge dehydrating agent of the present invention, with low cost, the dehydration dosage of required addition is few, it is dirty 5-15% of the addition of mud dehydrant for oily sludge quality.
(4) oily sludge is processed using the sludge dehydrating agent of the present invention, dewatering efficiency is high, can by the moisture content of oily sludge from More than 98% is reduced to below 30-50%;The volume of oily sludge is greatly reduced, floor space is reduced, And great convenience is brought to follow-up sludge treatment.
(5) oily sludge is processed using the sludge dehydrating agent of the present invention, dehydration efficiency is high, not only has high-efficiency dehydration to sludge Effect, and reach the purpose for reclaiming oils;For oily sludge of the moisture content more than 95%, by this Homogenizing and mixing effect for bright dehydrant, can be by the water in oily sludge, sludge and oily three phase separation;Break The mode of the oil removing and dehydration of existing most oily sludge is to complement each other, and the pattern relied on each other is real The key of the minimizing work of existing oily sludge:The three phase separation of oil-water-mud.
Specific embodiment
Embodiments of the present invention are illustrated below by way of specific instantiation, those skilled in the art can be by disclosed by this specification Content understand easily the present invention other advantages and effect.The present invention can also be added by specific embodiments different in addition To implement or apply, the every details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention Various modifications and changes are carried out under god.
It should be clear that the not concrete process equipment for indicating or device adopt conventional equipment in the art or device in the following example; All pressure values and scope are all referring to absolute pressure.
In addition, it is to be understood that one or more method and steps mentioned in the present invention do not repel before and after the combination step can be with There is additive method step or additive method step can also be inserted between the step of these specifically mention, unless otherwise stated; It should also be understood that the combination annexation between one or more the equipment/devices mentioned in the present invention is not repelled setting in the combination Can also there is other equipment/device before and after standby/device or which can also be inserted between these two equipment/devices for specifically mentioning His equipment/device, unless otherwise stated.And, unless otherwise stated, the numbering of various method steps only differentiates various method steps Convenient tool, rather than to limit the ordering of various method steps or limiting enforceable scope of the invention, its relativeness It is altered or modified, in the case of without essence change technology contents, when being also considered as enforceable category of the invention.
In various embodiments of the present invention, No. CAS of polyacrylamide is 9003-05-8;Molecular weight is 8,000,000-1,000 ten thousand. Polyacrylic No. CAS is 9007-20-9;Molecular weight is 200,000-40 ten thousand.No. CAS of sodium polyacrylate is 9003-04-7; Molecular weight is 200,000-40 ten thousand.Polyvinylamine CAS is 49553-92-6;Molecular weight is 1,000,000-200 ten thousand.Polypropylene sulfonic acid Salt CAS is 9002-97-5;Molecular weight is 70,000-10 ten thousand.Polyethylene oxide CAS is 9004-95-9;Molecular weight is 100 Ten thousand -200 ten thousand.
Embodiment 1
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 40%, polyacrylamide 60%;The inorganic oxide component contains each component of following weight portion:Silica 12 Weight portion, 3 weight portion of magnesium oxide, 5 weight portion of aluminium sesquioxide, 40 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) polyacrylamide solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product sludge and take off Water preparation.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, the oily sludge is petroleum chemical industry Oil-containing biochemical sludge, moisture content are 98%, oil content about 10%.200 kilograms of oily sludge is taken, mud dry weight is added wherein 8% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are down to 35%.
Embodiment 2
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 38%, sodium polyacrylate 62%;The inorganic oxide component contains each component of following weight portion:Silica 14 Weight portion, 2 weight portion of magnesium oxide, 9 weight portion of aluminium sesquioxide, 30 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) aqueous sodium polyacrylate is added in gained inorganic oxide component by proportioning in step (1), obtain final product sludge and take off Water preparation.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, oil-containing of the oily sludge for petroleum industry Anaerobic biological sludge, moisture content are 95%, oil content about 8%.200 kilograms of oily sludge is taken, mud dry weight is added wherein 8% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are down to 42%.
Embodiment 3
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 32%, polyacrylamide 68%;The inorganic oxide component contains each component of following weight portion:Silica 15 Weight portion, 5 weight portion of magnesium oxide, 6 weight portion of aluminium sesquioxide, 60 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) polyacrylamide solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product dirt Mud dehydrant.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, during the oily sludge is petroleum refining The oily sludge of generation, moisture content are 85%, oil content about 15%.200 kilograms of oily sludge is taken, adds sludge to do wherein Weigh 10% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are down to 50%.
Embodiment 4
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 40%, polyvinylamine 60%;The inorganic oxide component contains each component of following weight portion:2 weight of silica 1 Amount part, 3 weight portion of magnesium oxide, 5 weight portion of aluminium sesquioxide, 40 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) Aqueous polyvinylamine solutions are added in gained inorganic oxide component by proportioning in step (1), obtains final product sludge dewatering Agent.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, oil-containing of the oily sludge for petroleum industry Aerobic biochemical sludge, moisture content are 90%, oil content about 5%.200 kilograms of oily sludge is taken, mud dry weight is added wherein 15% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are down to 39%.
Embodiment 5
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 45%, polypropylene sulfonate 55%;The inorganic oxide component contains each component of following weight portion:Silica 10 Weight portion, 3 weight portion of magnesium oxide, 5 weight portion of aluminium sesquioxide, 30 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) polypropylene sulfonic acid saline solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product sludge Dehydrant.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, during the oily sludge is oil exploitation The oily sludge of generation, moisture content are 88%, oil content about 12%.200 kilograms of oily sludge is taken, adds sludge to do wherein Weigh 12% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are down to 45%.
Embodiment 6
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 28%, polypropylene sulfonate 72%;The inorganic oxide component contains each component of following weight portion:Silica 10 Weight portion, 8 weight portion of magnesium oxide, 10 weight portion of aluminium sesquioxide, 30 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) polypropylene sulfonic acid saline solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product sludge Dehydrant.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, during the oily sludge is oil exploitation The oily sludge of generation, moisture content are 88%, oil content about 12%.200 kilograms of oily sludge is taken, adds sludge to do wherein Weigh 12% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are down to 46%.
Embodiment 7
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 48%, Polyethylene oxide 52%;The inorganic oxide component contains each component of following weight portion:0 weight of silica 1 Amount part, 8 weight portion of magnesium oxide, 10 weight portion of aluminium sesquioxide, 30 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) Polyethylene oxide aqueous solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product sludge dewatering Agent.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, during the oily sludge is oil exploitation The oily sludge of generation, moisture content are 88%, oil content about 12%.200 kilograms of oily sludge is taken, adds sludge to do wherein Weigh 12% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are down to 49%.
Comparative example 1
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 45%, polypropylene sulfonate 55%;The inorganic oxide component contains each component of following weight portion:Silicon dioxide 2 Weight portion, 10 weight portion of magnesium oxide, 14 weight portion of aluminium sesquioxide, 20 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) polypropylene sulfonic acid saline solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product sludge Dehydrant.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, during the oily sludge is oil exploitation The oily sludge of generation, moisture content are 88%, oil content about 12%.200 kilograms of oily sludge is taken, adds sludge to do wherein Weigh 12% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are only down to 78%, and dehydrating effect is not satisfactory.It can be seen that, when adopting in the sludge dehydrating agent Inorganic oxide component in the weight proportion of each component when changing, very big impact can be caused to dewatering efficiency.
Comparative example 2
First, sludge dehydrating agent, the sludge dehydrating agent, each component containing following mass percent are prepared:Inorganic oxide Component 70%, polypropylene sulfonate 30%;The inorganic oxide component contains each component of following weight portion:Silica 12 Weight portion, 1 weight portion of magnesium oxide, 4 weight portion of aluminium sesquioxide, 20 weight portion of ferrum oxide.
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) polypropylene sulfonic acid saline solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product sludge Dehydrant.
Then, oily sludge is dehydrated using the sludge dehydrating agent for preparing, during the oily sludge is oil exploitation The oily sludge of generation, moisture content are 88%, oil content about 12%.200 kilograms of oily sludge is taken, adds sludge to do wherein Weigh 12% sludge dehydrating agent.Mechanical agitation is uniform, and stands 30 minutes.
As a result water, oil, sludge can be caused to separate, by recovery of oil.And these sludge after standing are carried out in mechanical filter press Filter pressing, the moisture percentage in sewage sludge for obtaining are only down to 75%, and dehydrating effect is not satisfactory.It can be seen that, when adopting in the sludge dehydrating agent Inorganic oxide component in the weight proportion of each component when changing, and inorganic oxide and organic polymer component When mass percent changes, very big impact can be caused to dewatering efficiency.
The principle and its effect of above-described embodiment only illustrative present invention, it is of the invention not for limiting.It is any to be familiar with this skill The personage of art all can carry out modifications and changes to above-described embodiment under the spirit and the scope without prejudice to the present invention.Therefore, such as Those of ordinary skill in the art completed under without departing from disclosed spirit and technological thought all etc. Effect modifications and changes, should be covered by the claim of the present invention.

Claims (6)

1. a kind of sludge dehydrating agent, each component containing following weight portion:28~48 weight portion of inorganic oxide component, organic high score 52~72 parts of subgroup point.
2. sludge dehydrating agent according to claim 1, it is characterised in that each component containing following mass percent:Inorganic oxygen Compound component 28~48%, organic polymer component 52~72%.
3. sludge dehydrating agent according to claim 1, it is characterised in that the inorganic oxide component contains following weight portion Each component:0~15 weight portion of silica 1,2~8 weight portion of magnesium oxide, 5~10 weight portion of aluminium sesquioxide, oxidation 30~60 weight portion of ferrum.
4. sludge dehydrating agent according to claim 1, it is characterised in that the organic polymer component selected from polyacrylamide, The combination of any one or more in polyacrylic acid, sodium polyacrylate, polyvinylamine, polypropylene sulfonate, Polyethylene oxide.
5. as described in Claims 1 to 4 any claim sludge dehydrating agent preparation method, comprise the steps:
(1) each component in inorganic oxide component is mixed by proportioning, obtains inorganic oxide component;
(2) organic polymer component aqueous solution is added in gained inorganic oxide component by proportioning in step (1), obtain final product dirt Mud dehydrant.
6. application of the sludge dehydrating agent in oily sludge is processed as described in Claims 1 to 4 any claim.
CN201510706038.5A 2015-10-27 2015-10-27 Dehydrating agent for sludge, and preparation and application thereof Pending CN106608709A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109354370A (en) * 2018-12-13 2019-02-19 青岛大学 A method of being dehydrated sludge fast press-filtration
CN109354380A (en) * 2018-12-13 2019-02-19 青岛大学 A method of improving thickened sludge dewatering
CN109354382A (en) * 2018-12-18 2019-02-19 青岛大学 A method of concentration textile printing coagulating waste water sludge
CN109354381A (en) * 2018-12-18 2019-02-19 青岛大学 A method of concentration textile printing and dyeing sludge
CN109354383A (en) * 2018-12-18 2019-02-19 青岛大学 A method of concentration high viscosity organic sludge
CN109368984A (en) * 2018-12-18 2019-02-22 青岛大学 A kind of method of continuous Floatation Thickening Sludge
CN109368982A (en) * 2018-12-18 2019-02-22 青岛大学 A kind of method of continuous floatation thickening textile printing and dyeing sludge
CN111747621A (en) * 2020-05-28 2020-10-09 武汉天源环保股份有限公司 Landfill leachate curing treatment method and landfill leachate curing treatment device

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Publication number Priority date Publication date Assignee Title
CN1962497A (en) * 2006-11-27 2007-05-16 武汉路德科技有限责任公司 Sludge drying agent and its preparing method
CN103265104A (en) * 2013-03-14 2013-08-28 苏州旭达环保科技有限公司 Nano powder-organic polymer composite flocculating agent
CN104829086A (en) * 2015-04-28 2015-08-12 唐国萍 Composite sludge dehydrating agent, preparation method and applications thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1962497A (en) * 2006-11-27 2007-05-16 武汉路德科技有限责任公司 Sludge drying agent and its preparing method
CN103265104A (en) * 2013-03-14 2013-08-28 苏州旭达环保科技有限公司 Nano powder-organic polymer composite flocculating agent
CN104829086A (en) * 2015-04-28 2015-08-12 唐国萍 Composite sludge dehydrating agent, preparation method and applications thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109354370A (en) * 2018-12-13 2019-02-19 青岛大学 A method of being dehydrated sludge fast press-filtration
CN109354380A (en) * 2018-12-13 2019-02-19 青岛大学 A method of improving thickened sludge dewatering
CN109354382A (en) * 2018-12-18 2019-02-19 青岛大学 A method of concentration textile printing coagulating waste water sludge
CN109354381A (en) * 2018-12-18 2019-02-19 青岛大学 A method of concentration textile printing and dyeing sludge
CN109354383A (en) * 2018-12-18 2019-02-19 青岛大学 A method of concentration high viscosity organic sludge
CN109368984A (en) * 2018-12-18 2019-02-22 青岛大学 A kind of method of continuous Floatation Thickening Sludge
CN109368982A (en) * 2018-12-18 2019-02-22 青岛大学 A kind of method of continuous floatation thickening textile printing and dyeing sludge
CN111747621A (en) * 2020-05-28 2020-10-09 武汉天源环保股份有限公司 Landfill leachate curing treatment method and landfill leachate curing treatment device

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