CN101570416A - Sewage treatment tailing recycling method - Google Patents
Sewage treatment tailing recycling method Download PDFInfo
- Publication number
- CN101570416A CN101570416A CNA2009100009382A CN200910000938A CN101570416A CN 101570416 A CN101570416 A CN 101570416A CN A2009100009382 A CNA2009100009382 A CN A2009100009382A CN 200910000938 A CN200910000938 A CN 200910000938A CN 101570416 A CN101570416 A CN 101570416A
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- CN
- China
- Prior art keywords
- sewage treatment
- sludge
- recycling method
- mud
- concrete
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
- C04B2/04—Slaking
- C04B2/06—Slaking with addition of substances, e.g. hydrophobic agents ; Slaking in the presence of other compounds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
- C04B2111/00784—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes for disposal only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a sludge treatment tailing recycling method. The method comprises the following steps of: dehydrating sludge directly pumped from a sludge outlet or a sludge storage pool of a sewage treatment plant by calcined lime; and then mixing the sludge with cement to form a concrete base material, and finally carrying out foaming treatment to form foaming sludge concrete. The method can be directly jointed with the sewage treatment process, directly pumps solid tailing which takes the sludge as the main component and is generated by the sewage treatment in the sewage treatment plant, uses the solid tailing as a raw material to produce the foaming concrete having multiple application, recycles the sludge generated by the sewage treatment and solves the sewage treatment problems of the sludge treatment industry. The method can achieve continuous and automatic operation, avoid manual work for the sludge, and improve the work environment. Meanwhile, solid wastes, such as fly ash, construction waste and the like can be added so as to recycle the solid wastes.
Description
Technical field
The present invention relates to the method that a kind of solid waste is recycled, specifically, the present invention relates to a kind of tailing recycling and method of resource that directly docks with sewage treatment process.
Background technology
Sewage disposal is that the impurity in the sewage is condensed into the process that semi-solid form is separated again from fluid, and the tailing of separating concentrates matter in the pasty state, is commonly called as to be mud.Further processing is not done to mud by present most of sewage work, but directly pasty state mud is toppled over, burns behind landfill or the natural airing; The sewage work that also has through overstocking dehydration, overstocks mud the dehydration back and forms soft pie mud, and then topple over, add bury or natural airing after burn.Topple over and add and bury mud and need take huge place, the foul gas severe contamination atmosphere that mud produces, operating environment is extremely abominable, and mud contains various heavy and hazardous and noxious substances, and they permeate the ground, severe contamination underground water; Burn same atmosphere pollution and operating environment behind the nature airing, so these method for sludge treatment run in the opposite direction with the environmental requirement that improves day by day, do not meet the requirement of reclamation of solid wastes, minimizing, harmless treatment yet, forbidden by environmental administration gradually.Like this, the processing of sewage treatment tailing has become the difficult problem of puzzlement sewage treatment industry.
Summary of the invention
In order to solve the sludge treatment difficult problem that sewage treatment industry faces, the invention provides a kind of recycling sludge method of directly docking with sewage treatment process, this method can make mud directly enter process for reclaiming, not only can utilize mud to produce foamed concrete with low cost, that serve many purposes, and can not produce pollution.Adopt this method, sewage work input be sewage, output be foamed concrete, mud becomes intermediate product, need not mud is carried out any manual work, not only improves operating environment greatly, and can improve the efficient of sewage disposal.
Sewage treatment tailing recycling method of the present invention comprises the steps:
(1) will mix with unslaked lime from the mud of sludge of sewage treatment plants outlet or the extraction of mud storage pool, fully stir, form lime mud;
(2) with lime mud, water, cement mixing, and fully stir, form sludge concrete;
(3) in foamed system, sludge concrete is mixed with whipping agent, and fully stir, form the foaming sludge concrete.
In the aforementioned recycling sludge method, during implementation step (1), the main component calcium oxide generation chemical reaction of water in the mud and unslaked lime, form white lime, unslaked lime plays dehydration to mud like this, and the white lime of formation has corrodibility, can play certain germicidal action to mud, in addition, white lime can improve the intensity of the foamed concrete of final formation as material of construction.In order to make unslaked lime and sludge reaction more abundant, can adopt calcium lime powder.
When implementation step (2), can add an amount of flyash, lime mud, water, cement and flyash are mixed, and fully stir; Described flyash can be the flyash that forms in the chimney, also can be that the cinder that other combustionmaterial burning backs form is pulverized the flyash that the back forms; Because flyash has lightweight characteristics, can make the foamed concrete of final formation have the performance of light weight.
When implementation step (2), can add an amount of construction waste crushing material, can make building waste obtain recycling like this, can reduce cost again; Can add dissimilar and construction waste crushing material different-grain diameter according to actual needs, so that form the foamed concrete of different components.
When implementation step (2), can also add an amount of setting accelerator or water reducer, so that improve the setting rate of foamed concrete.
When implementation step (2), can also add an amount of stone flour or sand.
In the aforementioned method of resource, between step (1) and step (2), filtration step can be arranged; Between step (2) and step (3), also filtration step can be arranged,, guarantee the final foamed concrete uniform particles that forms so that remove larger-size material in the material.
In the aforementioned recycling sludge method, all steps are all carried out in enclosed appts, with avoid mud towards periphery environment distribute foul gas.
In order further to avoid distributing of foul gas, improve operating environment, in aforementioned method of resource, adopt the apparatus for ultraviolet disinfection disinfection in material input aperture and equipped at outlet port.
Sewage treatment tailing recycling method of the present invention has been realized docking with the direct of sewage treatment process, and processing step is simple, and required equipment is simple, can realize that automatization works continuously, and can avoid the manual work at mud fully.Not only solve the sludge treatment problem that sewage treatment industry faces, and can make mud obtain recycling, produce the foaming sludge concrete that serves many purposes.
Description of drawings
Accompanying drawing is the process flow sheet of sewage treatment tailing recycling method of the present invention.
Embodiment
Embodiment 1
As shown in drawings, utilize mud handling equipment 1 to extract mud from sludge of sewage treatment plants outlet or mud storage pool, and continuously mud is transported in the slurry agitator 2, according to the transfer rate of mud, utilize lime adder 6 in slurry agitator 2, to add unslaked lime continuously; Under the effect of continuously stirring, the concurrent biochemical reaction of mud in the slurry agitator 2 and unslaked lime thorough mixing forms lime mud; Lime mud is transported in the concrete mixer 3 continuously, transfer rate according to lime mud, utilize water pump 7 and cement adder 8 in concrete mixer 3, to add water and cement continuously respectively, under the continuously stirring effect, the lime mud in the concrete mixer 3, water and cement form sludge concrete; Sludge concrete is transported in the concrete foaming machine 4 continuously, transfer rate according to sludge concrete, in concrete foaming machine 4, add whipping agent continuously by whipping agent adder 5, under stirring action, sludge concrete in the concrete foaming machine 4 fully foams, and forms the foaming sludge concrete.
Wherein slurry agitator 2, concrete mixer 3 and concrete foaming machine 4 can be the body structures that has whipping appts; Lime adder 6, cement adder 8 and whipping agent adder 5 can be hopper or the feed bins that has variable valve, and mud handling equipment 1 can be slush pump or travelling belt.
Embodiment 2
As shown in drawings, utilize mud handling equipment 1 to extract mud from sludge of sewage treatment plants outlet or mud storage pool, and mud is transported in the slurry agitator 2 continuously, transfer rate according to mud, utilize lime adder 6 in slurry agitator 2, to add unslaked lime continuously, under the effect of continuously stirring, the concurrent biochemical reaction of mud in the slurry agitator 2 and unslaked lime thorough mixing forms lime mud; Lime mud is transported in the concrete mixer 3 continuously, transfer rate according to lime mud, utilize water pump 7 respectively, cement adder 8, flyash adder 9, building waste adder 10 and stone flour or sand adder 15 add water continuously in concrete mixer 3, cement, flyash, construction waste crushing material and stone flour or sand, simultaneously by additive adder 11, in concrete mixer 3, add setting accelerator or water reducer, under the continuously stirring effect, the lime mud in the concrete mixer 3, water, cement, flyash, the construction waste crushing material, stone flour or sand and setting accelerator or water reducer form sludge concrete; Sludge concrete is transported in the buffer bin 13 continuously, sludge concrete is transported in the concrete foaming machine 4 continuously from buffering hopper 13 again, transfer rate according to sludge concrete, in concrete foaming machine 4, add whipping agent continuously by whipping agent adder 5, under stirring action, sludge concrete in the concrete foaming machine 4 fully foams, and forms the foaming sludge concrete, with the delivery port output of foaming sludge concrete from concrete foaming machine 4.
Wherein slurry agitator 2, concrete mixer 3 and concrete foaming machine 4 can be the box body devices that has whipping appts, and are enclosed appts; Lime adder 6, cement adder 8, flyash adder 9, building waste adder 10, additive adder 11, whipping agent adder 5 and stone flour or sand adder 15 can be hopper or the feed bins that has variable valve, so that regulate the content of each material according to actual needs; Mud handling equipment 1 can be slush pump or travelling belt.
As shown in drawings, be provided with strainer 12 in the exit of mud agitator 2, concrete mixer 3 and buffering hopper 13, described strainer 12 can be a filtering net.
As shown in drawings, be provided with apparatus for ultraviolet disinfection 14 in the input aperture of mud agitator 2 and the input aperture and the equipped at outlet port of equipped at outlet port, concrete mixer 3 and buffering hopper 13, the place, input aperture of unslaked lime, cement, water, flyash, construction waste crushing material, whipping agent, stone flour or sand also is provided with apparatus for ultraviolet disinfection.
The present invention proposes the basic design and the principle of recycling sludge, under the situation of spirit of the present invention or principal character, recycling sludge method of the present invention can also realize with other modes.Therefore; no matter from which point; above-mentioned embodiment of the present invention can only be thought can not limit the present invention to explanation of the present invention; claim has been pointed out technical scheme of the present invention and scope; therefore; in implication suitable and any modification in the scope, all will be understood that in the protection domain that is included in claim with the present invention.
Claims (9)
1. a sewage treatment tailing recycling method comprises the steps:
(1) will mix with unslaked lime from the mud of sludge of sewage treatment plants outlet or the extraction of mud storage pool, fully stir, form lime mud;
(2) with lime mud, water, cement mixing, and fully stir, form sludge concrete;
(3) in foamed system, sludge concrete is mixed with whipping agent, and fully stir, form the foaming sludge concrete.
2. sewage treatment tailing recycling method according to claim 1 adds flyash when it is characterized in that implementation step (2).
3. sewage treatment tailing recycling method according to claim 1 adds the construction waste crushing material when it is characterized in that implementation step (2).
4. sewage treatment tailing recycling method according to claim 1 adds stone flour or sand when it is characterized in that implementation step (2).
5. sewage treatment tailing recycling method according to claim 1 adds setting accelerator or water reducer when it is characterized in that implementation step (2).
6. sewage treatment tailing recycling method according to claim 1 is characterized in that comprising filtration step between step (1) and the step (2).
7. sewage treatment tailing recycling method according to claim 1 is characterized in that comprising filtration step between step (2) and the step (3).
8. sewage treatment tailing recycling method according to claim 1 is characterized in that carrying out in enclosed appts.
9. sewage treatment tailing recycling method according to claim 1 is characterized in that material input aperture and equipped at outlet port adopt apparatus for ultraviolet disinfection that the gas that gives out is carried out sterilization and disinfection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100009382A CN101570416A (en) | 2009-01-23 | 2009-01-23 | Sewage treatment tailing recycling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100009382A CN101570416A (en) | 2009-01-23 | 2009-01-23 | Sewage treatment tailing recycling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101570416A true CN101570416A (en) | 2009-11-04 |
Family
ID=41229918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100009382A Pending CN101570416A (en) | 2009-01-23 | 2009-01-23 | Sewage treatment tailing recycling method |
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|---|---|
| CN (1) | CN101570416A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351557A (en) * | 2011-06-22 | 2012-02-15 | 哈尔滨工业大学 | Method for preparing non-sintered ceramsite from activated sludge blended with fly ash |
| CN103496890A (en) * | 2013-09-03 | 2014-01-08 | 北京四方如钢混凝土制品有限公司 | Method for manufacturing solid block by using sludge, solid block, and backfilling method |
| CN104326716A (en) * | 2014-10-17 | 2015-02-04 | 天津城建大学 | Modified low-carbon raw soil cement and preparation method thereof |
| CN105254324A (en) * | 2015-09-30 | 2016-01-20 | 何相华 | Air-entrapping steam curing component prepared from construction waste and preparation method thereof |
| CN107522447A (en) * | 2016-12-02 | 2017-12-29 | 深圳市华威环保建材有限公司 | One kind sound absorption wall filler and preparation method thereof |
| CN107915434A (en) * | 2017-11-24 | 2018-04-17 | 陈波霖 | A kind of method for being used to prepare concrete |
| CN107915433A (en) * | 2017-11-22 | 2018-04-17 | 陈波霖 | A kind of preparation method of concrete |
| CN108104470A (en) * | 2017-12-10 | 2018-06-01 | 常成友 | A kind of construction method of construction wall |
-
2009
- 2009-01-23 CN CNA2009100009382A patent/CN101570416A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351557A (en) * | 2011-06-22 | 2012-02-15 | 哈尔滨工业大学 | Method for preparing non-sintered ceramsite from activated sludge blended with fly ash |
| CN103496890A (en) * | 2013-09-03 | 2014-01-08 | 北京四方如钢混凝土制品有限公司 | Method for manufacturing solid block by using sludge, solid block, and backfilling method |
| CN103496890B (en) * | 2013-09-03 | 2015-11-25 | 北京四方如钢混凝土制品有限公司 | Utilize the method for mud manufacture solid block, solid block and earth-filling method |
| CN104326716A (en) * | 2014-10-17 | 2015-02-04 | 天津城建大学 | Modified low-carbon raw soil cement and preparation method thereof |
| CN105254324A (en) * | 2015-09-30 | 2016-01-20 | 何相华 | Air-entrapping steam curing component prepared from construction waste and preparation method thereof |
| CN107522447A (en) * | 2016-12-02 | 2017-12-29 | 深圳市华威环保建材有限公司 | One kind sound absorption wall filler and preparation method thereof |
| CN107915433A (en) * | 2017-11-22 | 2018-04-17 | 陈波霖 | A kind of preparation method of concrete |
| CN107915433B (en) * | 2017-11-22 | 2020-09-15 | 霸州市隆浩鼎混凝土有限公司 | Preparation method of concrete |
| CN107915434A (en) * | 2017-11-24 | 2018-04-17 | 陈波霖 | A kind of method for being used to prepare concrete |
| CN107915434B (en) * | 2017-11-24 | 2020-06-16 | 兴业县银基混凝土有限公司 | Method for preparing concrete |
| CN108104470A (en) * | 2017-12-10 | 2018-06-01 | 常成友 | A kind of construction method of construction wall |
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Application publication date: 20091104 |