CN101113090A - Method for producing baking-free brick without odour and three-waste by using sewage plant sludge - Google Patents

Method for producing baking-free brick without odour and three-waste by using sewage plant sludge Download PDF

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Publication number
CN101113090A
CN101113090A CNA2007101378366A CN200710137836A CN101113090A CN 101113090 A CN101113090 A CN 101113090A CN A2007101378366 A CNA2007101378366 A CN A2007101378366A CN 200710137836 A CN200710137836 A CN 200710137836A CN 101113090 A CN101113090 A CN 101113090A
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weight
mud
waste
sludge
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罗健泉
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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
    • C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • 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
    • C04B2111/00439—Physico-chemical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00456—Odorless cements
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a method of making unfired bricks with sludge discharged from waste water treatment plant, and the processing courses are odorless without waste gas, waste liquid and waste slug pollutions. The materials are listed as following: activated sludge, cement, medium-fine sand, fine stone, and other materials invented in the invention such as deodorant, early strength agent, accelerator and activator. The invention takes advantage of burning-free technique to produce construction bricks, realizes the purpose of changing waste to valuable and clean production, and solves the pollution problem in prior sludge treatment method. The invention requires less equipment, and has simple structure, easy implementation and is in beneficial to environment protection and has remarkable economic and social benefits. The invention is suitable to be used in sludge harmless treatment and resource recovery.

Description

The method of producing baking-free brick without odour and three-waste by using sewage plant sludge
The present invention relates to a kind of method of producing baking-free brick without odour and three-waste by using sewage plant sludge, more particularly, relate to and a kind of the Sewage Plant active sludge is carried out deodorizing, add admixtures such as gelating material, aggregate, hardening accelerator, make non-burning brick method under the three-waste free discharge situation.
In the prior art; along with the continuous attention and the development of environment protection cause, the municipal sewage treatment factories that build in all parts of the country a large amount of, a large amount of active sludge of Sewage Plant by-product innoxious, the resource utilization problem is then outstanding further; up to the present, also be not used fully innoxiously.In the existing activated sludge treatment method, as: (1) mud mud landfill: meeting polluted underground water source; (2) mud is poured into marine: can pollute the marine site; (3) sludge incineration: handling costliness, exhaust emission atmosphere; (4) fertilizer is made in the sludge fermentation mummification: comparatively speaking, be a kind of method preferably, but waste time and energy, have heavy metal accumulation pollution problem; (5) mud and clay mixed sintering common brick: the high temperature when firing makes organic matter decomposition produce a large amount of foul gass, has a strong impact on the living environment of peripheral region; (6) other method for sludge treatment: still be in conceptual phase at present.In sum, all there is serious unsolved environmental issue in the whole bag of tricks of existing sludge treatment; Therefore, the simple method of essential employing under the prerequisite that does not produce environmental issue, is carried out innoxious, comprehensive utilization of resources to active sludge.
The present invention aims to provide a kind of with the non-burning brick method of sewage plant sludge odorless three-waste free discharge manufacturing, promptly adopting mud is major constituent, make mud play stopping composition and part gelling material, with middle fine sand and microlith is aggregate, make to replenish gelling material with cement, the reodorant, hardening accelerator, accelerating chemicals and the exciting agent that add patent of the present invention again are through forcing to mix, moulding, resting and make non-burning brick method.
In order to achieve the above object, the present invention has adopted following technical scheme:
(1) pays in the active sludge of product in Sewage Plant, add calcium peroxide (CaO 2) pulvis makes reodorant, after mixing, the oxygen that calcium peroxide generates plays chemosynthesis with more active organic smelly property gas, generates oxide compound and still is retained in the solution;
(2) mud itself contains the polyacrylamide binder constituents, can play filling effect and pectisation, makes to replenish gelling material with ordinary Portland cement again;
(3) with in fine sand make fine aggregate; Make big aggregate with particle diameter less than the crushed stone of 5mm.
(4) pair product ferrous sulfate (FeSO of usefulness titanium powder plant 47H 2O) with glycol ether [O (GH 2CH 2OH) 2] mixture, make hardening accelerator;
(5) boiler ash sediment with coal firing boiler adds solid potassium hydroxide (KOH) and Wingdale, calcines after three kinds of material mix, and grinds then, as accelerating chemicals;
(6) with potassium permanganate (KMnO 4) powder makes exciting agent;
(7) mud is moisture 75%～82%, and required water does not need to add water all from the mud again;
Go moulding after above-mentioned raw materials mixes, rest then, the demoulding, maintenance, make non-burning brickly, make mud become hard blocky silicate cement mud product, the image-stone piece is the same, no longer includes pollution problem.
Non-burning brick manufacture method of the present invention, comprise raw material pulverizing, sieve, measure, mix, moulding, rest, the demoulding, maintenance and Performance Detection.Its concrete manufacturing processed is: (1) joins in the JW250C type forced concrete mixer with the active sludge of moisture (following all be weight percentage) 75%～82%, add mud butt weight ratio then and be 1.5～3.2% calcium peroxide powder, constantly start agitator; (2) be that 32.5～42.5 ordinary Portland cement adds in the mud with strength grade, the cement add-on is 6～11% of whole raw material weights, continues to start agitator and stirs; (3) be that add-on is 2.2～3.0 times of cement weight in the middle fine sand adding stirrer of 0.25～0.5mm with particle diameter; (4) add in the stirrer with the microlith piece of particle diameter less than 5mm, add-on is 3.3～4.3 times of cement weight; (5) configuration hardening accelerator: make hardening accelerator with the mixture of ferrous sulfate 55～75% and glycol ether 25～45% and use, be added in the agitator, the consumption of hardening accelerator is 1.50～2.10% of a raw material total solids; (6) with coal furnace lime-ash (being ground into 60 orders) 66～86%+ solid potassium hydroxide, 5～8%+ Wingdale (being ground into 30 orders) 15～20%, the three mixes the back and calcines half an hour down at 1380～1410 ℃, be milled to 160 orders then, join in the agitator, add-on is 0.80～1.00% of a raw material total solids; (7) in agitator, add potassium permanganate (80 order) pulvis more while stirring, add-on is 0.04～0.06% of a raw material total solids; (8) after the above-mentioned raw materials adding finishes, continue again to stir 3～6 minutes, send to then in the QTJ3-35 type block machine, by pre-designed product size, carry out block forming, deliver to then and stack the place, stack neat, carried out the demoulding after resting one day, continue maintenance again and carry out sign indicating number heap, the qualified after testing then finished product that is after 7～10 days.In process of production, if any damaged brick, can return in the stirrer and recycle.
Prepared non-burning brick product, generally use under construction as the non-bearing building block, as framework infilled wall, division wall, enclosure wall etc., this product strength grade is MU1.5, MU2.5, MU3.5, MU5.0, five grades of MU7.5, density rating is 500,600,700,800,900,1000,1,200 seven grades, product wide (thick) degree can be made into holllow building block or solid block for 90mm, 115mm, 120mm, 140mm, 190mm.
In implementing process of the present invention, the mud that uses is the by product active sludge of municipal sewage treatment factory, and mud is moisture 75～82%, contain organic 35～65%, PH=5.5～8.5; Calcium peroxide (the CaO that in mud, adds 2), be a kind of white crystalline powder, quality product meets the seconds index of company standard, that is: calcium peroxide (CaO 2) content 〉=55%, heavy metal (Pb) content≤0.0035%, arsenic (As) content≤0.00015%, relative density is about 2.921, and it plays the sludge deodorization effect; The cement that adds is ordinary Portland cement, and technological standard is pressed the GB175-1999 regulation, and strength grade is 32.5～42.5, and it plays additional pectisation; River sand or the mountain sand of the middle fine sand particle diameter 0.25～0.5mm that adds, harmful substance contents is pressed the III class standard in the sand, and between fineness modulus Mx=1.6～3.0 of sand, the grain composition district of sand is the II district, and the bulk density of dry sand is 1450～1550kg/m 3, the soundness of sand meets the II class desired value of GB/T14684-2001 standard code, and it plays aggregate; The fine rock material that adds is the crushed stone of particle diameter less than 5mm, and wherein the following particle of 4mm accounts for more than 90%, and it plays the aggregate effect equally; Ferrous sulfate (the FeSO that adds 47H 2O) quality meets the industrial salable product in the GB10531-89 standard, ferrous sulfate (FeSO 47H 2O) content 〉=90.0%, titanium dioxide (TiO 2) content≤0.75%, water insoluble matter content≤0.75%; Glycol ether [O (the GH that adds 2CH 2OH) 2] be technical grade product, fusing point :-6.5 ℃, 245 ℃ of boiling points, it mixes the back and plays the hardening accelerator effect with ferrous sulfate; The coal furnace lime-ash that adds is a residue (boiler ash sediment) remaining behind the common coal combustion, should be ground into 60 orders; The potassium hydroxide (KOH) that adds meets the industrial secondary solid phase prod of G11GB1919-80 standard, potassium hydroxide (KOH) 〉=88.0%, salt of wormwood (K 2CO 3)≤3.0%, Repone K (KCL)≤3.0%, iron (Fe)≤0.07%; Wingdale (the CaCO that adds 3) need be ground into 30 orders, carry out 1380～1410 ℃ after above-mentioned boiler ash sediment, potassium hydroxide, Wingdale three are mixed and calcine half an hour, be milled to 160 orders, make accelerating chemicals and use; Potassium permanganate (the KMnO that adds 4) be the above technical grade pulvis of 80 orders, make exciting agent and use; In the mixing of above-mentioned whole raw materials was stirred, the water that needs was all from the wet contained moisture content of mud.
In implementing process of the present invention, all raw material should be checked, checks and accepts and take care of after entering factory, holds raw materials quality and closes, and when producing, should check batching metering scale limit of error every day one time; When stirring, per tour should be checked homogeneity and the workability that once stirs; To work in-process, should check whether every batch of work in-process outward appearance, size and degree of compactness etc. meet the requirements; Last inspection after construction then will be carried out its size deviation of sampling Detection, ultimate compression strength, folding strength to every batch of product and whether meet designed standard-required; In addition, according to user's needs, the product that also has other quality standard to require also should carry out relevant detection.
The composition of above-mentioned reodorant, hardening accelerator, accelerating chemicals, exciting agent and prescription are used, and are one of characteristics of patent of the present invention.
Compared with prior art, the present invention has following tangible advantage: (1) the present invention adopts unburned method to make building brick, a large amount of unpleasant foul smell of having avoided the firing sludge fragment of brick to produce; (2) odorless three-waste free discharge of the present invention is realized the clean production of sewage sludge harmlessness, resource utilization, has avoided the insoluble environmental issue that exists in the existing mud place metering method; (3) present device is simple and easy, method is simple, easy to implement; (4) the present invention is turned waste into wealth, and has remarkable economic efficiency, environmental benefit and social benefit.
Fig. 1 is a process flow diagram of the present invention, has clearly represented among the figure from active sludge treatment to making non-burning brick whole process.
Embodiment 1:
300 kilograms in the wet mud of moisture (weight percent) 80% of discharging with Sewage Plant, be added in the forced concrete mixer, calcium peroxide, the strength grade that adds 1.8 kilograms while stirring successively is 42.5 100 kilograms of ordinary Portland cements, 230 kilograms of the middle fine sand of particle diameter between 0.25～0.5mm, particle diameter 9 kilograms of 18 kilograms of 340 kilograms of crushed stone, hardening accelerator, accelerating chemicalss, 0.4 kilogram of the exciting agent less than 5mm, [wherein: (1) hardening accelerator method for making: the glycol ether of the ferrous sulfate with 65%+35% is hardening accelerator after mixing.(2) accelerating chemicals method for making: after 17.5% mixing of boiler ash sediment 76%+ potassium hydroxide 6.5%+ Wingdale, calcine half an hour down, be ground into 160 orders and promptly get accelerating chemicals at 1400 ℃; (3) exciting agent: adopt potassium permanganate 80 order pulvis]; Above-mentioned raw materials all refers to weight percent, after all adding finishes, restir mixed 5 minutes, sending to concrete block moulding machine then shakes molded, after deliver to stack and carry out the demoulding after resting one day in the field, maintenance detects after 8 days and sign indicating number heap again, and damaged material returns in the stirrer, promptly gets strength grade and be MU5.0, density rating and be about one ton of 900 non-burning brick product.
Embodiment 2:
Equipment, method, step, technology are with embodiment 1.
320 kilograms in the wet mud of the weight in wet base 75% of discharging with Sewage Plant, be added in the forced concrete mixer, the calcium peroxide that adds 2.0 kilograms while stirring successively, strength grade is 32.5 ordinary Portland cement 105 kg, 250 kilograms of the middle fine sand of particle diameter between 0.25～0.5mm, particle diameter is less than 355 kilograms of 5mm crushed stone, 19 kilograms of the hardening accelerator identical with embodiment 1,9 kilograms of accelerating chemicalss, 0.50 kilogram of exciting agent, after the whole addings of above-mentioned raw materials finish, restir mixed 4 minutes, the back is sent to concrete block moulding machine with car and is shaken molded, deliver to then to stack and carry out the demoulding after resting one day in the field, maintenance detects after 7 days and the sign indicating number heap again, damaged material returns in the stirrer, and promptly getting strength grade is MU3.5, density rating is about 1.05 tons of 700 a non-burning brick product.

Claims (2)

1. an active sludge is made non-burning brick method, it is characterized in that non-burning brick raw material and weight percentage are:
Sewage Plant active sludge moisture 75～82%
Ordinary Portland cement, add-on are 6～11% of whole raw material weights
Middle fine sand, add-on is 2.2～3.0 times of cement weight
Microlith piece, add-on are 3.3～4.3 times of cement weight
Adopt calcium peroxide to make reodorant
Adopt ferrous sulfate and glycol ether mixture, make hardening accelerator
Adopt boiler ash sediment+potassium hydroxide+Wingdale, make accelerating chemicals
Adopt potassium permanganate to make exciting agent
2. active sludge is made non-burning brick method, comprises deodorizing, batch mixing, moulding, rests, and it is characterized in that manufacturing processed is:
(1) add calcium peroxide in mud, add-on is 1.5～3.2% of a mud butt weight, then,
(2) with the mixture of ferrous sulfate 55～75% (weight) with glycol ether 25～45% (weight), add-on is 1.50～2.10% of a raw material total solid weight in mud, then,
(3) mix by 66～86%: 5～8%: 15～20% with boiler ash sediment, potassium hydroxide, Wingdale three weight percent, after 1380～1410 ℃ of calcinings, add-on is 0.80～1.00% of a raw material total solid weight in mud, then,
(4) use potassium permanganate, add-on is 0.04～0.06% of a raw material total solids in mud.
CNA2007101378366A 2007-07-22 2007-07-22 Method for producing baking-free brick without odour and three-waste by using sewage plant sludge Pending CN101113090A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101941820A (en) * 2010-08-10 2011-01-12 浙江迪邦化工有限公司 Method for making baking-free bricks by using dye waste water coagulated sludge and baking-free bricks
CN102152383A (en) * 2011-01-06 2011-08-17 江苏明轩环保科技有限公司 Method for manufacturing ecological building blocks of riverway protection slope from sewage plant sludge
CN102218767A (en) * 2010-04-16 2011-10-19 董辉 Non-sintered brick production technique
CN102531511A (en) * 2011-08-19 2012-07-04 中国海洋大学 Autoclaved brick prepared with dredged sludge and preparation method thereof
CN102826796A (en) * 2011-06-14 2012-12-19 北京仁创科技集团有限公司 Brick prepared from composition containing sludge and building waste and preparation method thereof
CN107337414A (en) * 2017-06-28 2017-11-10 武汉大学 A kind of new carbonization for being prepared using ocean waste silt is non-burning brick and preparation method thereof
CN107352863A (en) * 2017-06-09 2017-11-17 深圳市绿志新型建材研究院有限公司 A kind of sludge strengthens non-burning brick and preparation method thereof
CN108033763A (en) * 2017-12-13 2018-05-15 上海海顾新材料科技有限公司 A kind of method that low temperature synthetic sludge becomes high-intensity building materials
CN108516755A (en) * 2018-07-06 2018-09-11 四川建筑职业技术学院 A kind of inorganic polymer expanded material and preparation method thereof prepared using sludge
CN113024180A (en) * 2019-12-24 2021-06-25 湖南军信环保股份有限公司 Method for manufacturing environment-friendly baking-free light brick
CN113307551A (en) * 2021-05-26 2021-08-27 佛山市高明明建混凝土配送有限公司 High-ductility concrete and preparation method and equipment thereof

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102218767A (en) * 2010-04-16 2011-10-19 董辉 Non-sintered brick production technique
CN101941820A (en) * 2010-08-10 2011-01-12 浙江迪邦化工有限公司 Method for making baking-free bricks by using dye waste water coagulated sludge and baking-free bricks
CN102152383A (en) * 2011-01-06 2011-08-17 江苏明轩环保科技有限公司 Method for manufacturing ecological building blocks of riverway protection slope from sewage plant sludge
CN102152383B (en) * 2011-01-06 2012-07-04 江苏明轩环保科技有限公司 Method for manufacturing ecological building blocks of riverway protection slope from sewage plant sludge
CN102826796B (en) * 2011-06-14 2016-04-27 北京仁创科技集团有限公司 Fragment of brick made with the composition containing mud and building waste and preparation method thereof
CN102826796A (en) * 2011-06-14 2012-12-19 北京仁创科技集团有限公司 Brick prepared from composition containing sludge and building waste and preparation method thereof
CN102531511A (en) * 2011-08-19 2012-07-04 中国海洋大学 Autoclaved brick prepared with dredged sludge and preparation method thereof
CN107352863A (en) * 2017-06-09 2017-11-17 深圳市绿志新型建材研究院有限公司 A kind of sludge strengthens non-burning brick and preparation method thereof
CN107337414A (en) * 2017-06-28 2017-11-10 武汉大学 A kind of new carbonization for being prepared using ocean waste silt is non-burning brick and preparation method thereof
CN108033763A (en) * 2017-12-13 2018-05-15 上海海顾新材料科技有限公司 A kind of method that low temperature synthetic sludge becomes high-intensity building materials
CN108516755A (en) * 2018-07-06 2018-09-11 四川建筑职业技术学院 A kind of inorganic polymer expanded material and preparation method thereof prepared using sludge
CN108516755B (en) * 2018-07-06 2020-12-25 四川建筑职业技术学院 Inorganic polymer foam material prepared from sludge and preparation method thereof
CN113024180A (en) * 2019-12-24 2021-06-25 湖南军信环保股份有限公司 Method for manufacturing environment-friendly baking-free light brick
CN113307551A (en) * 2021-05-26 2021-08-27 佛山市高明明建混凝土配送有限公司 High-ductility concrete and preparation method and equipment thereof

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