CN102992567B - A kind of method of lignin-sludge - Google Patents
A kind of method of lignin-sludge Download PDFInfo
- Publication number
- CN102992567B CN102992567B CN201210562355.0A CN201210562355A CN102992567B CN 102992567 B CN102992567 B CN 102992567B CN 201210562355 A CN201210562355 A CN 201210562355A CN 102992567 B CN102992567 B CN 102992567B
- Authority
- CN
- China
- Prior art keywords
- mud
- metal
- present
- redox reaction
- oxygenant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention provides a kind of method of lignin-sludge, comprise the following steps: by pending mud and oxygenant be oxidized the catalyst mix that leads, carry out redox reaction, the mass ratio of the butt of described oxidation guiding catalyzer and pending mud is (3% ~ 8%): 1; Carry out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described redox reaction, obtain solid matter and filtrate; Described oxidation guiding catalyzer comprises following component: the metallic compound of 5wt% ~ 45wt%; The sorbent material of 55wt% ~ 95wt%.When the oxidation guiding catalyzer that method provided by the invention adopts wraps in and processes mud, its initiation can be played without the need to adding acid-base modifier more wherein, make oxygenant can organic matter better in oxygenolysis mud, therefore the mud after method process provided by the invention is in neutral, make the abatement amount of mud reach maximum, be beneficial to the carrying out of subsequent technique.
Description
Technical field
The present invention relates to environmental protection technical field, particularly relate to a kind of method of lignin-sludge.
Background technology
Mud is the product of sewage disposal, is mainly derived from the process procedure such as primary sedimentation pond, secondary sedimentation basins.Every ten thousand stere sewage after treatment mud generation (by water ratio 80%) is generally about 5 ~ 10 tons, and mud must carry out concentrated to reduce moisture percentage in sewage sludge before dehydration outward transport, reduced the volume of mud.
In prior art Sewage Plant adopt the ultimate principle of sewage second-level biochemical treatment be microorganism using dirty Organic substance in water as self metabolic nutritive substance, its point is taken off, is converted into CO
2, H
2o and metabolic secretion thing, the retained secretion produced through bacteria metabolism just defines surplus mud, in surplus mud and sewage, scum silica frost and microbial bacteria group have been polymerized sewage plant excess sludge, are the secondary products after Sewage Plant biochemical wastewater treatment, also become cities and towns solid waste.As everyone knows, containing a large amount of harmful microorganism bodies such as germ body, parasitic ovum in mud, also contain the toxic heavy metals such as a large amount of arsenic, copper, mercury, chromium Ji carinogenicity materials such as dioxin, this will threaten to ecotope.Therefore specific resistance to filtration is not only the thorny problem of environmental area one, is also one of current hot subject of field of Environment Protection.At present sanitary landfill is mainly contained to the treatment process of excess sludge, land resources science, thermal treatment, sludge composting, ultrasonic wave clear up sludge etc.
In order to realize the process to mud, reach the emission standard meeting environmental requirement, prior art discloses the method for multiple sludge treatment, as the publication number Chinese patent that is CN102145974A discloses the method for lignin-sludge under a kind of normality, its method, for adding oxidation directed agents and conditioning agent CaO in mud, stirs, and passes into ozone, be be oxidized directed agents under the existence of CaO, promote that ozone generation hydroxyl radical free radical carries out redox reaction; And then add coagulation agent wherein and carry out coagulation process, finally by sludge press filtration.But the method adds the pH value that CaO improves mud in mud, and the change of pH value directly has influence on the complexation equilibrium relation of metal, thus affects the oxidation capacity of ozone, with Fe
3+for example, under alkaline environment, Fe
3+can not produce OH with activated carbon catalysis ozone water, but generate precipitation under self alkaline condition, oxidation guiding catalyzer loses activity, and catalytic capability declines, and is unfavorable for degraded organic in mud.
Summary of the invention
The object of the present invention is to provide a kind of method of lignin-sludge, the pH value of method lignin-sludge provided by the invention in neutral, and has higher degradation rate to the organic matter in mud.
The invention provides a kind of method of lignin-sludge, comprise the following steps:
By pending mud and oxygenant be oxidized the catalyst mix that leads, carry out redox reaction, the lead mass ratio of butt of catalyzer and pending mud of described oxidation is (3% ~ 8%): 1;
Carry out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described redox reaction, obtain solid matter and filtrate;
Described oxidation guiding catalyzer comprises following component:
The metallic compound of 5wt% ~ 45wt%;
The sorbent material of 55wt% ~ 950wt%.
Preferably, described metallic compound is one or both in metal-salt and metal oxide.
Preferably, described metal-salt is one or more in metal formate, metal acetate, metal chloride, metal sulfate and metal nitrate.
Preferably, described oxidation guiding catalyzer comprises the metallic compound of 10wt% ~ 30wt%.
Preferably, described oxidation guiding catalyzer comprises the sorbent material of 70wt% ~ 90wt%.
Preferably, the metal in described metallic compound is one or more in Fe, Mn, Al, V and Ti.
Preferably, described sorbent material is one or more in carbon dust class sorbent material, sepiolite powder, diatomite, colliery powder, flyash, perlite powder, bentonite in powder, volcano ashes and kaolin.
Preferably, the mass ratio of the butt of described oxidation guiding catalyzer and described pending mud is (0.1% ~ 0.5%): 1.
Preferably, described oxygenant is one or more in ozone and hydrogen peroxide.
Preferably, described oxygenant accounts for the massfraction of the butt of described pending mud is (0.1 ~ 1.0) g/kg.
Preferably, described flocculation agent comprises following component:
The FeCl of 0wt% ~ 60wt%
3;
The polymerize aluminum chloride of 37wt% ~ 95wt%;
The cationic polyacrylamide of 3wt% ~ 10wt%.
The invention provides a kind of method of lignin-sludge, comprise the following steps: by pending mud and oxygenant be oxidized the catalyst mix that leads, carry out redox reaction, the mass ratio of the butt of described oxidation guiding catalyzer and pending mud is (3% ~ 8%): 1; Carry out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described redox reaction, obtain solid matter and filtrate; Described oxidation guiding catalyzer comprises following component: the metallic compound of 5wt% ~ 45wt%; The sorbent material of 55wt% ~ 95wt%.The oxidation guiding catalyzer that method provided by the invention adopts comprises metallic compound, accelerating oxidation agent can generate hydroxyl radical free radical, significantly enhance the amount of hydroxyl radical free radical, makes the outer polymeric film of extracellular microbial better carry out redox reaction; Oxidation guiding catalyzer provided by the invention comprises sorbent material, and it has larger specific surface area and strong adsorptive power, effectively can adsorb the solid particulate matter in mud from gas or liquid; And, oxidation guiding catalyzer provided by the invention is when processing mud, its initiation can be played without the need to adding acid-base modifier more wherein, make oxygenant can organic matter better in oxygenolysis mud, therefore the mud after method process provided by the invention in neutral, and has higher organic matter degradation rate.Experimental result shows, the pH value of the mud after method process provided by the invention is 6 ~ 8.Experiment confirms, the pH value of mud and filtered water does not cause change after treatment.
Embodiment
The invention provides a kind of method of lignin-sludge, comprise the following steps:
By pending mud and oxygenant be oxidized the catalyst mix that leads, carry out redox reaction, the lead mass ratio of butt of catalyzer and pending mud of described oxidation is (3% ~ 8%): 1;
Carry out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described redox reaction, obtain solid matter and filtrate;
Described oxidation guiding catalyzer comprises following component:
The metallic compound of 5wt% ~ 45wt%;
The sorbent material of 55wt% ~ 95wt%.
The invention provides a kind of method of lignin-sludge, the oxidation guiding catalyzer that method provided by the invention adopts comprises metallic compound, it accelerating oxidation agent can produce hydroxyl radical free radical, and can increase the amount of hydroxyl radical free radical, is conducive to the degraded to organic substance in mud; The oxidation guiding catalyzer that the method that the invention provides adopts comprises sorbent material, and described sorbent material has larger specific surface area and stronger adsorptive power, can adsorb the solid pollutants such as Heavy Metals in Sludge; And the oxidation guiding catalyzer that method provided by the invention adopts plays initiation without the need in the acid or alkali environment that provides at CaO, and accelerating oxidation agent, to degraded organic in mud, makes the pH value of the mud after the process obtained in neutral.
The source of the present invention to described pending mud does not have special restriction, adopts mud well known to those skilled in the art.As, method provided by the invention can process excess sludge, also can be used for processing mud.In the present invention, described excess sludge is the mud that sewage produces through process, and comprising scum silica frost, microorganism cenobium, is the secondary product after Sewage Plant biochemical wastewater treatment; The mud that described mud is lake, channel deposit obtains;
The present invention, first by pending mud and oxygenant be oxidized the catalyst mix that leads, carries out redox reaction, obtains the product of redox reaction.The present invention does not have special restriction to described pending mud and oxygenant with the order of addition(of ingredients) be oxidized when leading catalyst mix, adopts order of addition(of ingredients) well known to those skilled in the art.First the present invention preferably adds oxidation guiding catalyzer in pending mud, then adds oxygenant wherein under the condition stirred, and carries out redox reaction.In the present invention, described oxidation guiding catalyzer comprises following component:
The metallic compound of 5wt% ~ 45wt%;
The sorbent material of 55wt% ~ 95wt%.
In the present invention, described oxidation guiding catalyzer comprises the metallic compound of 5wt% ~ 45wt%, is preferably 10wt% ~ 30wt%, is more preferably 15wt% ~ 25wt%.In the present invention, described metallic compound is preferably one or both in metal-salt and metal oxide; Described metal-salt can be the inorganic salt of metal, also can be the organic salt of metal, be preferably in metal formate, metal acetate, metal chloride, metal sulfate and metal nitrate one or more, be more preferably in metal formate, metal acetate and metal chloride one or more; Metal in described metallic compound be preferably in Fe, Mn, Al, V and Ti one or several, be more preferably in Fe, Al, Ti and V one or more, most preferably be in Fe, Ti and Al one or more;
In the present invention, described metallic compound solidification effect is good, its hydroxyl radical free radical that can generate with ozone reaction, the hydroxyl radical free radical obtained makes Organic Sludge microbial film and cellularstructure generation redox processes, smash membrane structure, generate micromolecular organic matter, and the chemical bonds such as-NH of organic matter ,-SH ,-OH are easy to the heavy metal ion Cd with excess sludge surface
2+, Cu
2+, Zn
2+, Pb
2+, Ni
2+, Cr
3+, As
+plasma forms inner complex, is wrapped in dewatered sludge, thus improves the processing efficiency to mud after mechanical mummification press filtration heavy metal ion;
In the present invention, described oxidation guiding catalyzer comprises the sorbent material of 55wt% ~ 95wt%, is preferably 70wt% ~ 90wt%, is more preferably 75wt% ~ 85wt%.In the present invention, sorbent material has large specific surface, suitable pore structure and surface tissue, and has strong adsorptive power to adsorbate, and sorbent material general not with adsorbate and medium generation chemical reaction; Easily manufactured, regenerating easily; There is good physical strength etc.Therefore, in the present invention, sorbent material can adsorb the solid matter of wherein some composition effectively from gas or liquid, can adsorb to maximum the solid particulate matter in mud, improve the processing efficiency to mud.In the present invention, described sorbent material be preferably in carbon dust, gac, charcoal, sepiolite powder, diatomite, colliery powder, flyash, perlite powder, bentonite in powder, volcano ashes and kaolin one or several, be more preferably in carbon dust, gac, flyash, diatomite, perlite powder, kaolin one or more, most preferably be in carbon dust, gac, flyash one or more; The order number of the granularity of described sorbent material is preferably more than 100 orders, is more preferably more than 150 orders.Carbon dust class sorbent material, its loading capacity is larger, to the absorption property Be very effective of solid particulate matter in mud.Wherein, activity charcoal powder is the meal made after charing, activation by the carbon raw materials such as charcoal, shell, coal, and activity charcoal powder contains a lot of pore structure, and it has excellent adsorptive power, dimension adopts activity charcoal powder as the sorbent material more remarkable effect of sludge treatment, and water separation capability is stronger.And when adopting multiple sorbent material to lead as oxidation the component of catalyzer simultaneously, can the performance of balanced various sorbent material, make comprehensive absorption property better.
The oxidation guiding catalyzer that method provided by the invention adopts can play its initiation without the need in the acid or alkali environment that provides at CaO, and oxygen supply agent provides a suitable environment to oxygenizement organic in mud, facilitate oxygenant to oxidation organic in mud, reduce content organic in mud, and make the pH value of the mud after the process that obtains in neutral, make the abatement amount of mud reach maximum, utilize the carrying out of subsequent technique.
The preparation method of the present invention to described oxidation guiding catalyzer does not have special restriction, adopts technical scheme prepared by composition well known to those skilled in the art, after said components preferably mixes by the present invention, can obtain oxidation guiding catalyzer.
After obtaining oxidation guiding catalyzer, described oxidation guiding catalyzer preferentially joins in pending mud by the present invention, the add-on of described oxidation guiding catalyzer is different according to the kind difference of pending mud, in the present invention, described pending mud is preferably excess sludge or mud.When described pending mud is excess sludge, described oxidation guiding catalyzer is (3% ~ 8%) with the mass ratio of butt in described excess sludge: 1, preferably (4% ~ 7%): 1; When described pending mud is mud, described oxidation guiding catalyzer is (0.1% ~ 0.5%) with the mass ratio of butt in described mud: 1, preferably (0.2% ~ 0.4%): 1; In the present invention, described butt is the solid matter that drying sludge to constant weight obtains, the solid matter that constant weight obtains is dried under being preferably the temperature of 103 DEG C ~ 105 DEG C, the equipment of the present invention to described drying does not have special restriction, baking oven adopts drying plant well known to those skilled in the art, as can be adopted;
Obtain pending mud with oxidation lead catalyzer mixture after, the present invention preferably stirring condition under add oxygenant wherein, carry out redox reaction.In the present invention, described oxygenant is preferably hydrogen peroxide or ozone, is more preferably hydrogen peroxide or ozone.The mass concentration of the present invention to described hydrogen peroxide does not have special restriction, adopts the hydrogen peroxide as oxygenant well known to those skilled in the art; The source of the present invention to described ozone does not have special restriction, adopts the technical scheme preparing ozone well known to those skilled in the art, as ozonizer can be adopted to prepare ozone required for the present invention; The present invention does not have special restriction to described ozonizer, adopts ozonizer well known to those skilled in the art;
In the present invention, the mass concentration of described hydrogen peroxide is preferably 30% ~ 60%, is more preferably 35% ~ 55%; The mass ratio that described oxygenant accounts for butt in described pending mud is preferably (0.1 ~ 1.0) g/kg, is more preferably (0.1 ~ 0.5) g/kg; The method of the present invention to described stirring does not have special restriction, adopts the technical scheme of stirring well known to those skilled in the art; In the present invention, the temperature of described oxidizing reaction is preferably room temperature; The time of described oxidizing reaction is different according to the quality difference of pending mud, the quality of pending mud is more, the time of oxidizing reaction also will extend thereupon, oxidizing reaction is carried out more completely and thoroughly, the present invention does not have special restriction to this, adopt time-align technique scheme well known to those skilled in the art.
After completing described redox reaction, the present invention carries out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described oxidizing reaction, obtain solid matter and filtrate, the pH value of described filtrate is 6 ~ 8.The present invention, preferably after completing above-mentioned redox reaction, preferably adds flocculation agent in the reaction product obtained, and then the mixture obtained is carried out heavy process of wadding a quilt with cotton.In the present invention, described flocculation agent preferably includes following component:
The FeCl of 0wt% ~ 60wt%
3;
The polymerize aluminum chloride of 37wt% ~ 95wt%;
The cationic polyacrylamide of 3wt%10wt%.
In the present invention, described coagulation agent preferably includes the FeCl of 0wt% ~ 60wt%
3, be more preferably 5wt% ~ 55wt%, most preferably be 10wt% ~ 50wt%; Described coagulation agent preferably includes the polymerize aluminum chloride (PAC) of 37wt% ~ 95wt%, is more preferably 45wt% ~ 90wt%, most preferably is 50wt% ~ 80wt%; Described coagulation agent preferably includes the cationic polyacrylamide (CPAM) of 3wt%10wt%, is more preferably 5wt% ~ 8wt%;
In the present invention, the butt mass ratio of described coagulation agent and described pending mud is preferably (0.05% ~ 5%): 1, is more preferably (0.075% ~ 4%): 1;
The present invention does not have special restriction to the temperature that described coagulation agent mixes with the oxidation reaction product of pending mud, preferably at room temperature carries out.The present invention preferably stirs when being mixed with coagulation agent by the oxidation reaction product of pending mud, and the method for the present invention to described stirring does not have special restriction, adopts the technical scheme of stirring well known to those skilled in the art.
After obtaining the mixture of redox reaction product and flocculation agent, the mixture obtained is carried out heavy process of wadding a quilt with cotton by the present invention, the present invention to described wadding sink process method there is no special restriction, the mixture obtained after adding flocculation agent is stirred, flocculation agent and redox reaction product are fully reacted, accelerate settling velocity and the sinkability of mud, flocculation agent makes mud flco generation reflocculation, thus increase the volume of mud flco, newly-generated mud flco due to minimizings such as the protein in mud, polysaccharide, so resistivity obviously reduces; In addition, the increase of newly-generated mud flco particle diameter, can cause flco more easily broken, thus more be conducive to the filtration in later stage.
The invention provides a kind of method of lignin-sludge, comprise the following steps: by pending mud and oxygenant be oxidized the catalyst mix that leads, carry out redox reaction, the mass ratio of the butt of described oxidation guiding catalyzer and pending mud is (3% ~ 8%): 1; Carry out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described redox reaction, obtain solid matter and filtrate; Described oxidation guiding catalyzer comprises following component: the metallic compound of 5wt% ~ 45wt%; The sorbent material of 55wt% ~ 95wt%.The oxidation guiding catalyzer that method provided by the invention adopts comprises metallic compound, accelerating oxidation agent can generate hydroxyl radical free radical, significantly enhance the amount of hydroxyl radical free radical, makes the outer polymeric film of extracellular microbial better carry out redox reaction; Oxidation guiding catalyzer provided by the invention comprises sorbent material, and it has larger specific surface area and strong adsorptive power, effectively can adsorb the solid particulate matter in mud from gas or liquid; And, oxidation guiding catalyzer provided by the invention is when processing mud, its initiation can be played without the need to adding acid-base modifier more wherein, make oxygenant can organic matter better in oxygenolysis mud, therefore the mud after method process provided by the invention in neutral, and has higher organic matter degradation rate.Experimental result shows, the pH value of the mud after method process provided by the invention is 6 ~ 8.
In order to further illustrate the present invention, being described in detail below in conjunction with the method for embodiment to lignin-sludge provided by the invention, but they can not being interpreted as limiting the scope of the present invention.
Excess sludge below in embodiment is from the secondary product after Sewage Plant biochemical wastewater treatment.
Embodiment 1
By mass ratio be 80:20 by carbon dust and FeCl
3mixing, obtains oxidation guiding catalyzer after mixing;
To containing adding the oxidation guiding catalyzer that 50g the present embodiment obtains in the excess sludge of 1.0kg butt, after stirring, then passing into 0.5g ozone wherein, carrying out redox reaction; The FeCl that 0.5g contains 45wt% is added in the redox reaction product obtained
3, 45wt% the flocculation agent of CPAM of PAC and 10wt%, it is heavy fully to carry out wadding after mixing, obtains solid matter and filtrate through press filtration.
It is 6 that the present invention detects the pH value obtaining filtrate; The present invention detect obtain through the heavy resistivity obtaining mud of wadding a quilt with cotton be 0.080 × 10
12m/kg ~ 1.0 × 10
12m/kg.
Embodiment 2
Be the mixing of the activated carbon powder of 30:35:10:15, flyash, ironic formiate and al formate by mass ratio, mix and obtain oxidation guiding catalyzer;
To containing adding oxidation guiding catalyzer prepared by 0.35kg the present embodiment in the excess sludge of 10kg butt, after stirring, then passing into 3.5g ozone wherein, carrying out redox reaction; The FeCl that 10g contains 50wt% is added in the redox reaction product obtained
3, 45wt% the flocculation agent of CPAM of PAC and 5wt%, it is heavy fully to carry out wadding after mixing, obtains solid matter and filtrate through press filtration.
It is 6.2 that the present invention detects the pH value obtaining filtrate, the present invention detect obtain through the heavy resistivity obtaining mud of wadding a quilt with cotton be 0.090 × 10
12m/kg ~ 1.2 × 10
12m/kg.
Embodiment 3
Be 82:7:7 carbon dust, FeCl by mass ratio
3with ironic acetate mixing, after mixing, obtain oxidation guiding catalyzer;
To containing adding oxidation guiding catalyzer prepared by 3.25kg the present embodiment in the excess sludge of 50kg butt, after stirring, then passing into 22.5g ozone wherein, carrying out redox reaction; Then in the redox reaction product obtained, add the FeCl that 1kg contains 55wt%
3, 35wt% the flocculation agent of CPAM of PAC and 10wt%, it is heavy fully to carry out wadding after mixing, obtains solid matter and filtrate through press filtration.
It is 6.5 that the present invention detects the pH value obtaining filtrate, and the present invention detects and obtains the heavy resistivity obtaining mud of wadding is 0.075 × 10
12m/kg ~ 1.05 × 10
12m/kg.
Embodiment 4
Be gac and the FeCl of 85:15 by mass ratio
3mixing, obtains oxidation guiding catalyzer after mixing;
To containing adding oxidation guiding catalyzer prepared by 6kg the present embodiment in the excess sludge of 80kg, after stirring, then passing into 60g ozone wherein, carrying out redox reaction; Then in the redox reaction product obtained, add the flocculation agent that 3kg contains the CPAM of PAC and 20wt% of FeCl3,35wt% of 45wt%, fully heavy process of wadding a quilt with cotton is carried out in mixing, obtains solid matter and filtrate through press filtration.
It is 7.0 that the present invention detects the pH value obtaining filtrate, the present invention detect obtain through the heavy resistivity obtaining mud of wadding a quilt with cotton be 0.1 × 10
12m/kg ~ 0.4 × 10
12m/kg.
Embodiment 5
Be carbon dust and the FeCl of 78:22 by mass ratio
3mixing, obtains oxidation guiding catalyzer after mixing;
To containing adding the oxidation guiding catalyzer that 0.3kg the present embodiment obtains in the mud of 100kg butt, after stirring, then passing into 50g ozone wherein, carrying out redox reaction; Then in the redox reaction product obtained, add the FeCl of 1.2kg containing 45wt%
3, 45wt% the flocculation agent of CPAM of PAC and 10wt%, heavy process of wadding a quilt with cotton is carried out in mixing, obtains solid matter and filtrate through press filtration.
It is 7.5 that the present invention detects the pH value obtaining filtrate, the present invention detect obtain through the heavy resistivity obtaining mud of wadding a quilt with cotton be 0.080 × 10
12m/kg ~ 1.5 × 10
12the mud of m/kg.
Embodiment 6
Be the mixing of the property powdered carbon of 40:40:10:10, flyash, ironic formiate and al formate by mass ratio, after mixing, obtain oxidation guiding catalyzer;
To containing adding the oxidation guiding catalyzer that 0.3kg the present embodiment obtains in the mud of 60kg butt, after stirring, then passing into 48g ozone wherein, carrying out redox reaction; Then in the product of the redox reaction obtained, add the FeCl that 0.5kg contains 55wt%
3, 40wt% the flocculation agent of CPAM of PAC and 5wt%, fully heavy process of wadding a quilt with cotton is carried out in mixing, obtains solid matter and filtrate through press filtration.
It is 7.8 that the present invention detects the pH value obtaining filtrate, the present invention detect obtain through the heavy resistivity obtaining mud of wadding a quilt with cotton be 0.100 × 10
12m/kg ~ 1.35 × 10
12m/kg.
Embodiment 7
Be carbon dust and the FeCl of 85:15 by mass ratio
3mixing, obtains oxidation guiding catalyzer after mixing;
To containing adding the oxidation guiding catalyzer that 0.09kg the present embodiment obtains in the mud of 90kg butt, passing into 9g ozone wherein again after stirring, carrying out redox reaction; Then in the redox reaction product obtained, add the FeCl that 0.8kg contains 45wt%
3, 40wt% the flocculation agent of CPAM of PAC and 15wt%, fully heavy process of wadding a quilt with cotton is carried out in mixing, obtains solid matter and filtrate through press filtration.
It is 7.6 that the present invention detects the pH value obtaining filtrate, the present invention detect obtain through the heavy resistivity obtaining mud of wadding a quilt with cotton be 0.065 × 10
12m/kg ~ 1.55 × 10
12m/kg.
As seen from the above embodiment, the invention provides a kind of method of lignin-sludge, comprise the following steps: by pending mud and oxygenant be oxidized the catalyst mix that leads, carry out redox reaction, the lead mass ratio of butt of catalyzer and pending mud of described oxidation is (3% ~ 8%): 1; Carry out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described redox reaction, obtain solid matter and filtrate; Described oxidation guiding catalyzer comprises following component: the metallic compound of 5wt% ~ 45wt%; The sorbent material of 55wt% ~ 95wt%.The oxidation guiding catalyzer that method provided by the invention adopts comprises metallic compound, accelerating oxidation agent can generate hydroxyl radical free radical, significantly enhance the amount of hydroxyl radical free radical, makes the outer polymeric film of extracellular microbial better carry out redox reaction; Oxidation guiding catalyzer provided by the invention comprises sorbent material, and it has larger specific surface area and strong adsorptive power, effectively can adsorb the solid particulate matter in mud from gas or liquid; And, oxidation guiding catalyzer provided by the invention is when processing mud, its initiation can be played without the need to adding acid-base modifier more wherein, make oxygenant can organic matter better in oxygenolysis mud, therefore the mud after method process provided by the invention is in neutral, make the abatement amount of mud reach maximum, and there is higher organic matter degradation rate.Experimental result shows, the pH value of the mud after method process provided by the invention is 6 ~ 8.
Above the method for a kind of lignin-sludge provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (2)
1. a method for lignin-sludge, is made up of following steps:
By pending mud and oxygenant be oxidized the catalyst mix that leads, carry out redox reaction;
Carry out heavy process of wadding a quilt with cotton after being mixed with flocculation agent by the product of described redox reaction, obtain solid matter and filtrate; Described oxygenant is one or more in ozone and hydrogen peroxide;
Described flocculation agent comprises following component:
The FeCl of 5 wt% ~ 55 wt%
3;
The polymerize aluminum chloride of 37 wt% ~ 95 wt%;
The cationic polyacrylamide of 3 wt% ~ 10 wt%;
In described flocculation agent, each component concentration percentage ratio sum is 100 %;
The mass ratio of the butt of described oxidation guiding catalyzer and described pending mud is (4% ~ 7%): 1;
The massfraction that described oxygenant accounts for the butt of described pending mud is (0.1 ~ 1.0) g/kg;
Described oxidation guiding catalyzer is composed of the following components:
The metallic compound of 5 wt% ~ 45 wt%;
The sorbent material of 55 wt% ~ 95 wt%;
Described metallic compound is one or both in metal-salt and metal oxide;
Described metal-salt is one or more in metal formate, metal acetate and metal nitrate;
Described sorbent material is one or more in sepiolite powder, diatomite, colliery powder, flyash, perlite powder, bentonite in powder, volcano ashes and kaolin.
2. method according to claim 1, is characterized in that, the metal in described metallic compound is one or more in Fe, Mn, Al, V and Ti.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562355.0A CN102992567B (en) | 2012-12-21 | 2012-12-21 | A kind of method of lignin-sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562355.0A CN102992567B (en) | 2012-12-21 | 2012-12-21 | A kind of method of lignin-sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102992567A CN102992567A (en) | 2013-03-27 |
| CN102992567B true CN102992567B (en) | 2015-08-26 |
Family
ID=47921767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210562355.0A Expired - Fee Related CN102992567B (en) | 2012-12-21 | 2012-12-21 | A kind of method of lignin-sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102992567B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992566B (en) * | 2012-12-21 | 2015-08-26 | 湖南清和污泥资源利用有限公司 | A kind of method of lignin-sludge |
| CN105712601B (en) * | 2014-12-04 | 2019-05-21 | 中国石油化工股份有限公司 | A kind of method of catalysis ozone processing residual active sludge |
| CN106277660B (en) * | 2015-05-18 | 2018-08-14 | 中国石油化工股份有限公司 | A kind of method of heterogeneous catalysis ozone treatment residual active sludge |
| CN105174667A (en) * | 2015-09-10 | 2015-12-23 | 潘福昆 | Sludge deodorizing agent |
| CN105461183B (en) * | 2015-12-31 | 2018-07-17 | 浙江清华长三角研究院 | A kind of processing method of the residual active sludge of AOX pollutions |
| CN106587571A (en) * | 2016-12-30 | 2017-04-26 | 西华大学 | Method for co-conditioning of sludge through multiple types of agents |
| CN106915885A (en) * | 2017-03-20 | 2017-07-04 | 宁波大学 | The minimizing technology of quinolones micropollutants in a kind of residual active sludge |
| CN108892356A (en) * | 2018-08-01 | 2018-11-27 | 成都诺德源环保科技有限公司 | The processing method of heavy metal in a kind of municipal sludge |
| CN112028415B (en) * | 2020-08-26 | 2023-02-14 | 沈阳理工大学 | Sludge catalytic oxidation treatment pump and sludge separation and quality-based comprehensive utilization method thereof |
| CN112028416B (en) * | 2020-08-26 | 2023-03-31 | 沈阳理工大学 | Cutting mixed catalytic oxidation sterilizer and septic tank sludge comprehensive utilization method |
| CN112624301B (en) * | 2020-11-26 | 2022-10-21 | 广东灵捷制造化工有限公司 | Method for eliminating blue algae in water body and application thereof |
| CN112774657B (en) * | 2020-12-28 | 2023-06-16 | 江苏新聚环保科技有限公司 | Catalyst for deodorizing activated sludge and method for deodorizing activated sludge and accelerating sludge precipitation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145974A (en) * | 2010-02-05 | 2011-08-10 | 湖南湘牛污泥深度处理有限公司 | Method and equipment for treating sludge in normal state |
| CN102992566A (en) * | 2012-12-21 | 2013-03-27 | 湖南清和污泥资源利用有限公司 | Method for disposing sludge |
-
2012
- 2012-12-21 CN CN201210562355.0A patent/CN102992567B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145974A (en) * | 2010-02-05 | 2011-08-10 | 湖南湘牛污泥深度处理有限公司 | Method and equipment for treating sludge in normal state |
| CN102992566A (en) * | 2012-12-21 | 2013-03-27 | 湖南清和污泥资源利用有限公司 | Method for disposing sludge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102992567A (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102992567B (en) | A kind of method of lignin-sludge | |
| CN102992566B (en) | A kind of method of lignin-sludge | |
| Yi et al. | Magnetic biochar for environmental remediation: A review | |
| Li et al. | An overview of carbothermal synthesis of metal–biochar composites for the removal of oxyanion contaminants from aqueous solution | |
| Qu et al. | Multi-component adsorption of Pb (II), Cd (II) and Ni (II) onto microwave-functionalized cellulose: Kinetics, isotherms, thermodynamics, mechanisms and application for electroplating wastewater purification | |
| Gupta et al. | Latest trends in heavy metal removal from wastewater by biochar based sorbents | |
| Aziz et al. | Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: a review | |
| Hadi et al. | Adsorption of 4-chlorophenol by magnetized activated carbon from pomegranate husk using dual stage chemical activation | |
| CN102976578A (en) | Method for treating sand-containing sludge | |
| Yu et al. | Insights into the glyphosate removal efficiency by using magnetic powder activated carbon composite | |
| Cai et al. | Advanced treatment of piggery tail water by dual coagulation with Na+ zeolite and Mg/Fe chloride and resource utilization of the coagulation sludge for efficient decontamination of Cd2+ | |
| CN103028426B (en) | A kind of guiding of the oxidation for Treatment of Sludge catalyst | |
| Luo et al. | Efficient removal of Pb (II) through recycled biochar-mineral composite from the coagulation sludge of swine wastewater | |
| Cao et al. | Co-adsorption capabilities and mechanisms of bentonite enhanced sludge biochar for de-risking norfloxacin and Cu2+ contaminated water | |
| Zhang et al. | Removal of phosphate from water by paper mill sludge biochar | |
| Mahmoud et al. | Efficient and ultrafast removal of Cd (II) and Sm (III) from water by leaves of Cynara scolymus derived biochar | |
| Zeng et al. | Sustainable use of Ca (OH) 2 modified biochar for phosphorus recovery and tetracycline removal from water | |
| CN104587956A (en) | Preparation method of coated nano zero-valent iron taking multilayer activated-carbon-coated graphene oxide composite powder as carrier | |
| Cao et al. | Facile construction of high-performance 3D Co2C-doped CoAl2O4 fiber composites for capturing and decomposing tetracycline from aqueous solution | |
| CN104386866A (en) | Method for treating water through Fenton oxidation of activated molecular oxygen by utilizing ultrasonic catalysis | |
| Ahmad et al. | Microwave-assisted hydrothermal treatment of soybean residue and chitosan: Characterization of hydrochars and role of N and P transformation for Pb (II) removal | |
| Thakur et al. | Removal of heavy metals using bentonite clay and inorganic coagulants | |
| CN103058480A (en) | Device and method for sludge treatment | |
| Zhang et al. | Enhanced remediation of cadmium-polluted soil and water using facilely prepared MnO2-coated rice husk biomass | |
| CN103880265B (en) | A kind of method for processing sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN KINGHOOD ENVIRONMENTAL PROTECTION TECHNOLOGY Free format text: FORMER OWNER: HU'NAN QINGHE SLUDGE RESOURCES CO., LTD. Effective date: 20150730 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150730 Address after: 410004 Hunan province Changsha Yuelu District City Garden Road No. 16 torch city M building 7 floor Applicant after: Hunan Kinghood Environmental Protection Technology Co., Ltd. Address before: 410006 Hunan province Changsha Yuelu District City Garden Road No. 16 torch city M0 building 7 floor Applicant before: Hunan Kinghood Resource Utilization of Sludge Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |