CN106673699A - Preparation method of waterworks sludge-base porous ceramsite doped with bamboo powder - Google Patents
Preparation method of waterworks sludge-base porous ceramsite doped with bamboo powder Download PDFInfo
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- CN106673699A CN106673699A CN201710077826.1A CN201710077826A CN106673699A CN 106673699 A CN106673699 A CN 106673699A CN 201710077826 A CN201710077826 A CN 201710077826A CN 106673699 A CN106673699 A CN 106673699A
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- wood powder
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28059—Surface area, e.g. B.E.T specific surface area being less than 100 m2/g
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Structural Engineering (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a preparation method of waterworks sludge-base porous ceramsite doped with bamboo powder. The preparation method is characterized by comprising: mixing powdery sludge and powdery bamboo in a weight ratio of 10-30:1, uniformly mixing in water to form a micro-ball of which the grain size is 0.5-0.8cm, and performing natural air-drying; calcining the micro-ball in a muffle furnace, stopping heating, reducing the temperature to 80 DEG C to obtain a calcined material, and cooling to room temperature in a dryer; rinsing the calcined material for 5min by using 0.1-0.3M of hydrochloric acid, filtering out the hydrochloric acid, repeatedly rinsing by using distilled water for three times, and then drying the calcined material in a drying oven to constant weight; finally, obtaining the sludge-base porous ceramsite doped with the bamboo powder. The method is simple in process and low in cost, solves the problem of low porosity of traditional sludge-base porous ceramsite, greatly improves the performance of sludge-base ceramsite and the sewage treatment effect, and promotes recycling resource utilization of waterworks sludge and waste bamboo materials.
Description
Technical field
The present invention relates to a kind of preparation method of porous ceramic grain, it is more particularly to a kind of as sewage treating material originally
Waterworks sludge base porous ceramic grain, adulterates bamboo powder, wood powder to improve the porosity of haydite during sintering, lifts its absorption property doping bamboo
The preparation method of the waterworks sludge base porous ceramic grain of wood powder.
Background technology
Haydite refers to the material with high surfaces porosity made by clay or sludge spherical particle Jing high-temperature calcinations.It
With certain specific surface area and loose structure, with preferable absorption property, can be dirty as the absorption of the adsorbent of sewage disposal
Heavy metal, Organic substance, phosphate in water etc., also can be used as filler, the attached long microorganism in surface.
With Development of China's Urbanization, cities and towns waterworks Quantity quickly increases with scale, and sludge is produced as tap water
The total amount of by-product also rises rapidly, the mishandling secondary pollution that will result in environment.Alum sludge process and disposal
Also the problem of urgent need to resolve during current environmental development is become.
Alum sludge comes from the flocculation reaction stage of controlling the water circulation process, and main component is coagulant hydrolytic residue and is mixed
The clay class float of solidifying agent flocculation parcel, thus it is central containing a certain amount of iron salt and aluminium salt so as to the phosphoric acid in sewage
Salt has good removal effect, can adsorb phosphatic raw material as preparing.
It is prepared that porosity rate is not high in sintering because organic matter is very low contained by sludge, performance is have impact on very much greatly and is answered
With scope and value.
Bamboo powder refers to the powdery particulate matter that the size-reduced grinding of bamboo material is formed, and main component is bamboo fibre, and chemical composition is
Organic carbon.Wood powder refers to the powdery particulate matter that the size-reduced grinding of timber is formed, and main component is the wood fiber, and chemical composition is have
Machine carbon.Bamboo and wood powder is mixed in sludge, the content of organic matter of sludge can be improved, the hole of haydite can be increased in sewage sludge sintering
Rate so as to which specific surface area bigger, absorption property is more preferably.
The present invention takes the bamboo and wood powder that adulterates in alum sludge to prepare porous ceramic grain, improves the ratio table of sludge base haydite
Area and absorption property, while realizing the recycling of sludge and discarded bamboo and wood material.
The content of the invention
It is an object of the invention to provide a kind of preparation method of the alum sludge base porous ceramic grain of doping bamboo and wood powder
With application, in a kind of simple exercisable mode, improve the performance of sludge base haydite, lift its work(in sewage disposal application
Effect.
The purpose of the present invention is achieved by the following scheme：
1st, raw material prepares
Alum sludge is air-dried under field conditions (factors), to be removed and be crushed to 4-8mm after bulky grain stone matter debris, then Jing grinds
Mill, 100 mesh sieves excessively obtain powder sludge.Jing special equipments crush, grind, sieve after bamboo and wood material is dried, and become the powder of 100 mesh
Last shape bamboo and wood powder.
2nd, doping proportioning (weight part ratio)
Powder sludge：Powder bamboo and wood powder=10~30:1
3rd, preparation process：
(1) the powder sludge and powder bamboo and wood powder mixed like example are mixed well with water, group makes particle diameter 0.5-0.8cm's
Microsphere, natural air drying.
(2) the microsphere by step (1) is inserted in Muffle furnace and calcined, calcining heat 400-600 DEG C, is stopped after 2-3h and is stopped heating
And be cooled to 80 DEG C of dischargings and obtain calcining material, it is placed on cooling in exsiccator.
(3) after calcining material is cooled to room temperature, haydite 5min is embathed with the hydrochloric acid of 0.1M, filter off hydrochloric acid.Embathed with distilled water
10min, drains moisture, and the distilled water being repeated 3 times embathes and dewatering step.Finally haydite is put into into baking oven in 105-120 DEG C of baking
Do to constant weight, the final sludge base porous ceramic grain for obtaining doping bamboo and wood powder.
Bamboo and wood powder of the present invention, refers to the leftover bits and pieces of bamboo or the timber course of processing.
In bamboo and wood powder of the present invention, the ratio that bamboo powder and wood powder mix is arbitrary.
It is an advantage of the current invention that：
Present invention process is simple, with low cost, solves the problems, such as that traditional sludge Quito hole porosity rate is not enough, significantly
Degree improves the performance and sewage disposal effect of sludge base haydite, the resource for promoting alum sludge and waste wood to turn waste into wealth
Change and utilize.
Specific embodiment
Embodiment 1
(1) next alum sludge (moisture content 65-80%) will be fetched to air-dry under field conditions (factors), bulky grain stone is removed
4-8mm is crushed to after matter debris, then ground, 100 mesh sieves excessively obtain powder sludge；Jing special equipments break after bamboo and wood material is dried
It is broken, grind, sieve, become the powder bamboo and wood powder of 100 mesh.
(2) 10kg is crossed into the powder sludge and 1kg powder bamboo and wood powder of 100 eye mesh screens by 10:1 ratios with water is mixed well,
The microsphere of particle diameter 0.5-1.0cm, natural air drying are made by group.
(3) (2) microsphere will be inserted by calcining in Muffle furnace, 400 DEG C of calcining heat after calcination time 3h, stops heating and lowering the temperature
Calcining material is obtained to 80 DEG C of dischargings, cooling in exsiccator is placed on.
(4) haydite 5min is embathed with the hydrochloric acid of 0.1M after calcining material is cooled to room temperature, filter off hydrochloric acid.Embathed with distilled water
10min, drains moisture, and the distilled water being repeated 3 times embathes and dewatering step.Finally by haydite be put into baking oven dry in 105 DEG C to
Constant weight, obtains the sludge base porous ceramic grain of the doping bamboo and wood powder of the present embodiment.
Specific area measuring：With the simple sludge base porous ceramic grain specific surface area 4.03 made using alum sludge ×
104cm2·g‐1Compare, the alum sludge base porous ceramic grain specific surface area prepared by the present embodiment is 10.80 × 104c
m2·g‐1, improve 1.68 times.
The application of sewage disposal：In the process test of the electromechanical polishing process phosphorus-containing wastewater to total phosphorus concentration 186mg/L,
The doping bamboo and wood powder alum sludge base porous ceramic grain of the present embodiment is 12.048gkg to the maximal absorptive capacity of phosphorus‐1, total phosphorus
Clearance is 98.9%, and adopt the made sludge base porous ceramic grain of alum sludge to the maximal absorptive capacity of phosphorus for
9.715g·kg‐1, total tp removal rate be 92.8%.
The present embodiment sludge picks up from Foochow East water factory.
Bamboo powder and wood powder are according to 1 in bamboo and wood powder in the present embodiment：1 weight ratio mixing.
Embodiment 2
(1) next alum sludge (moisture content 65-80%) will be fetched to air-dry under field conditions (factors), bulky grain stone is removed
4-8mm is crushed to after matter debris, then ground, 100 mesh sieves excessively obtain powder sludge；.Bamboo and wood material dry after Jing special equipments
Crush, grind, sieve, become the powder bamboo and wood powder of 100 mesh.
(2) 15kg is crossed into the sludge and 1kg bamboo and wood powder of 100 eye mesh screens by 15:1 ratios with water is mixed well, and particle diameter is made by group
0.5-1.0cm's, natural air drying.
(3) (2) microsphere will be inserted by calcining in Muffle furnace, 500 DEG C of calcining heat after calcination time 2.5h, stops heating and dropping
Temperature to 80 DEG C of dischargings obtain calcining material, are placed on cooling in exsiccator.
(4) after calcining material is cooled to room temperature, haydite 5min is embathed with the hydrochloric acid of 0.1M, filter off hydrochloric acid.Embathed with distilled water
10min, drains moisture, and the distilled water being repeated 3 times embathes and dewatering step.Finally by haydite be put into baking oven dry in 105 DEG C to
Constant weight, obtains the sludge base porous ceramic grain of the doping bamboo and wood powder of the present embodiment.
Specific area measuring：With the simple sludge base porous ceramic grain specific surface area 4.17 made using alum sludge ×
104cm2·g‐1Compare, the alum sludge base porous ceramic grain specific surface area prepared by the present embodiment is 13.72 × 104c
m2·g‐1, improve 2.29 times.
The application of sewage disposal：In the process test of the electromechanical polishing process phosphorus-containing wastewater to total phosphorus concentration 186mg/L,
The doping bamboo and wood powder alum sludge base porous ceramic grain of the present embodiment is 13.908gkg to the maximal absorptive capacity of phosphorus‐1, total phosphorus
Clearance is 99.3%, and adopt the made sludge base porous ceramic grain of alum sludge to the maximal absorptive capacity of phosphorus for
10.663g·kg‐1, total tp removal rate be 94.7%.
The present embodiment sludge picks up from Foochow East water factory.
Bamboo powder and wood powder are according to 4 in bamboo and wood powder in the present embodiment：1 weight ratio mixing.
Embodiment 3
(1) next alum sludge (moisture content 65-80%) will be fetched to air-dry under field conditions (factors), bulky grain stone is removed
4-8mm is crushed to after matter debris, then ground, 100 mesh sieves excessively obtain powder sludge.Jing special equipments break after bamboo and wood material is dried
It is broken, grind, sieve, become the powder bamboo and wood powder of 100 mesh.
(2) 20kg is crossed into the sludge and 1kg bamboo and wood powder of 100 eye mesh screens by 20:1 weight ratio is mixed well with water, and group makes
The sphere of particle diameter 0.5-1.2cm, natural air drying.
(3) will (2) mix material and insert calcining in Muffle furnace, 600 DEG C of calcining heat after calcination time 2h, will stop heating simultaneously
It is cooled to 80 DEG C of dischargings and obtains calcining material, is placed on cooling in exsiccator.
(4) after calcining material is cooled to room temperature, haydite 5min is embathed with the hydrochloric acid of 0.1M, filter off hydrochloric acid.Embathed with distilled water
10min, drains moisture, and the distilled water being repeated 3 times embathes and dewatering step.Finally by haydite be put into baking oven dry in 105 DEG C to
Constant weight, obtains the sludge base porous ceramic grain of the doping bamboo and wood powder of the present embodiment.
Specific area measuring：With the simple sludge base porous ceramic grain specific surface area 4.23 made using alum sludge ×
104cm2·g‐1Compare, the alum sludge base porous ceramic grain specific surface area prepared by the present embodiment is 10.97 × 104c
m2·g‐1, improve 1.59 times.
The application of sewage disposal：In the process test of the electromechanical polishing process phosphorus-containing wastewater to total phosphorus concentration 186mg/L,
The doping bamboo and wood powder alum sludge base porous ceramic grain of the present embodiment is 11.368gkg to the maximal absorptive capacity of phosphorus‐1, total phosphorus
Clearance up to 98.4%, and adopt the made sludge base porous ceramic grain of alum sludge to the maximal absorptive capacity of phosphorus for
10.002g·kg‐1, total tp removal rate be 93.1%.
The present embodiment sludge picks up from Foochow West water factory.
Bamboo powder and wood powder are according to 1 in bamboo and wood powder in the present embodiment：4 weight ratio mixing.
Claims (4)
1. it is a kind of doping bamboo and wood powder waterworks sludge base porous ceramic grain preparation method, it is characterised in that：
1) raw material prepares：
Alum sludge is air-dried under field conditions (factors), to be removed and be crushed to 4-8mm, then ground, mistake after bulky grain stone matter debris
100 mesh sieves obtain powder sludge；Rubber scrap Jing special equipments are broken, grinding is sieved and becomes the powder bamboo and wood powder of 100 mesh；
2) weight portion mixing match：
Powder sludge：Powder bamboo and wood powder=10~30:1
3) preparation process：
(1) powder sludge and powder powder bamboo and wood powder are mixed well with water, the microsphere of particle diameter 4-12mm, natural wind are made by group
It is dry；
(2) the microsphere by step (1) is inserted in Muffle furnace and calcined, and calcining material, exsiccator are heated and obtained when being cooled to 80 DEG C in stopping
Inside it is cooled to room temperature；
(3) after calcining material is cooled to temperature, calcining material 5min is embathed with the hydrochloric acid of 0.1M, filter off hydrochloric acid, embathed with distilled water
10min, drains moisture, and the distilled water being repeated 3 times embathes and dewatering step；Finally calcining material is put into into baking oven in drying to perseverance
Weight, the final sludge base porous ceramic grain for obtaining doping bamboo and wood powder.
2. it is according to claim 1 it is a kind of doping bamboo and wood powder waterworks sludge base porous ceramic grain preparation method, its feature
It is to calcine in described Muffle furnace, calcining heat 400-600 DEG C, calcination time 2-3h.
3. it is according to claim 1 it is a kind of doping bamboo and wood powder waterworks sludge base porous ceramic grain preparation method, its feature
It is described bamboo and wood powder, refers to the leftover bits and pieces of bamboo or the timber course of processing.
4. it is according to claim 1 it is a kind of doping bamboo and wood powder waterworks sludge base porous ceramic grain preparation method, its feature
It is described drying, its temperature is 105-110 DEG C.
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| CN201710077826.1A CN106673699A (en) | 2017-02-14 | 2017-02-14 | Preparation method of waterworks sludge-base porous ceramsite doped with bamboo powder |
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| CN201710077826.1A CN106673699A (en) | 2017-02-14 | 2017-02-14 | Preparation method of waterworks sludge-base porous ceramsite doped with bamboo powder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108610014A (en) * | 2018-05-04 | 2018-10-02 | 温州大学 | Phosphorus recycling and biological ceramic particle regeneration method in the preparation method and haydite of eutrophication water efficient dephosphorization recoverable version biological ceramic particle |
| CN112624792A (en) * | 2020-12-18 | 2021-04-09 | 珠江水利委员会珠江水利科学研究院 | Ceramsite prepared from byproducts of sludge treatment based on plants, and preparation method and application thereof |
| CN114956859A (en) * | 2022-05-23 | 2022-08-30 | 合肥工业大学 | Novel tap water plant sludge-biochar-based ceramsite filter material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108610014A (en) * | 2018-05-04 | 2018-10-02 | 温州大学 | Phosphorus recycling and biological ceramic particle regeneration method in the preparation method and haydite of eutrophication water efficient dephosphorization recoverable version biological ceramic particle |
| CN108610014B (en) * | 2018-05-04 | 2021-07-20 | 温州大学 | Preparation method of eutrophic water body high-efficiency phosphorus removal recyclable biological ceramsite, phosphorus recovery method in ceramsite and biological ceramsite regeneration method |
| CN112624792A (en) * | 2020-12-18 | 2021-04-09 | 珠江水利委员会珠江水利科学研究院 | Ceramsite prepared from byproducts of sludge treatment based on plants, and preparation method and application thereof |
| CN114956859A (en) * | 2022-05-23 | 2022-08-30 | 合肥工业大学 | Novel tap water plant sludge-biochar-based ceramsite filter material |
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Application publication date: 20170517 |