CN106512947A - Preparation method of sludge-based charcoal doped with bamboo and wood powder - Google Patents
Preparation method of sludge-based charcoal doped with bamboo and wood powder Download PDFInfo
- Publication number
- CN106512947A CN106512947A CN201611190617.XA CN201611190617A CN106512947A CN 106512947 A CN106512947 A CN 106512947A CN 201611190617 A CN201611190617 A CN 201611190617A CN 106512947 A CN106512947 A CN 106512947A
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- bamboo
- sludge
- wood powder
- preparation
- temperature pyrolysis
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Classifications
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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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
Abstract
The invention relates to a preparation method of sludge-based charcoal doped with bamboo and wood powder. The preparation method is characterized by including the steps that municipal sludge is air-dried to constant weight, and the municipal sludge is crushed and ground and passes through a 200-mesh sieve; a bamboo and wood material is dried in the sun and then crushed, ground and sieved to form the 200-mesh bamboo and wood powder; the doped municipal sludge and bamboo and wood powder are fully mixed according to the weight part ratio of (1-3):1, the mixture is put in an atmosphere muffle furnace to be subjected to high-temperature pyrolysis, heating is stopped, the temperature is reduced to 80 DEG C, the mixture is discharged, the mixture is put in a dryer to be cooled, and a high-temperature pyrolysis product is obtained; the high-temperature pyrolysis product is rinsed for 5 min with 1M hydrochloric acid, hydrochloric acid is filtered out, the product is soaked with deionized water and filtered, the operation is repeated 5 times, the product is dried to constant weight, and finally the sludge-based charcoal doped with the bamboo and wood powder is obtained. The preparation cost is reduced, the limitation of preparation of the sludge-based charcoal is overcome, the municipal sludge and the waste bamboo and wood material are changed into wealth from waste, and meanwhile the quality and sewage treatment performance of the sludge-based charcoal are improved to a large degree.
Description
Technical field
The present invention relates to a kind of sludge base charcoal, more particularly to a kind of sludge base charcoal preparation of doping bamboo and wood powder
Method.
Background technology
Charcoal refers to the biomass remaining material Jing after high temperature pyrolysis under anoxic conditions.Charcoal has larger ratio
Surface area and loose structure, with good absorption property, heavy metal, ammonia that can be as sewage disposal adsorbent, in absorption water
Nitrogen, phosphate etc..
With Development of China's Urbanization, town sewage plant construction is advanced by leaps and bounds, and municipal sludge is total as sewage disposal by-product
Amount also drastically rises, if the mishandling secondary pollution that can cause environment.The process of sludge is disposed has become current environment face
The Tough questions for facing.
In municipal sludge contain a certain amount of carbon, can as the raw material for preparing charcoal, but its also because contained by sludge into
Point complexity, institute's phosphorus content is relatively low, therefore merely with charcoal quality made by which and performance compared with commercial biological charcoal gap very
Greatly, its range of application is also limited significantly with value.
Bamboo and wood powder is the powdery particulate matter that the size-reduced grinding of bamboo and wood material is formed, and main component is bamboo fibre, the wood fiber, is changed
Study and be divided into organic carbon.Bamboo and wood powder is mixed in municipal sludge, the phosphorus content of sludge can be improved so that the sludge base of preparation is biological
More preferably, absorption property is more preferably for charcoal quality.
The present invention takes the bamboo and wood powder that adulterates in sludge to prepare charcoal, improves the absorption property of sludge base charcoal, together
The recycling of Shi Shixian 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 sludge base charcoal of doping bamboo and wood powder and application, with one
Simple exercisable mode is planted, is improved the performance of sludge base charcoal, is lifted its absorption decontamination energy in sewage disposal application
Power.
The purpose of the present invention is achieved by the following scheme：
1st, raw material prepares
Municipal sludge is air-dried under field conditions (factors), is then placed in baking oven and is dried to constant weight in 105 DEG C, after removing the debris such as stone
It is crushed to 4-8mm, then ground, 200 mesh sieves excessively.After bamboo and wood material is dried, Jing special equipments crush, grind, sieve, and become 200 mesh
Bamboo and wood powder.
2nd, preparation process
(1) 1～3 is pressed:The municipal sludge mixed and bamboo and wood powder are sufficiently mixed by 1 weight ratio, standby.
(2) the material by step (1) inserts the pyrolysis of atmosphere Muffle furnace high temperature, is passed through the nitrogen of 100-200mL/min
15min, after be heated to 400-600 DEG C with the programming rate of 10-20 DEG C/min, stop 2-3h after, stopping heat and be cooled to 80
DEG C discharging, is placed on cooling in exsiccator and obtains high temperature pyrolysis product.
(3) the hydrochloric acid for (2) step being obtained high temperature pyrolysis product 1M embathes 5min.
(4) step hydrochloric acid (3) is filtered off, solid content deionized water is soaked and filter after 20min, deionized water soaks and mistake
Filter step to repeat 5 times, then filter upper thing is put into baking oven and dry in 105 DEG C to constant weight, the sludge base of final acquisition doping bamboo and wood powder
Charcoal.
It is an advantage of the current invention that：
The preparation cost of sludge base charcoal is saved, the limitation of sludge base charcoal preparation has been overcome so that municipal administration
Sludge and discarded bamboo and wood material are turned waste into wealth, while largely improving the quality and sewage disposal performance of sludge base charcoal.
Specific embodiment
Embodiment 1
(1) next municipal sludge (moisture content 72%) will be fetched to air-dry under field conditions (factors), baking oven then be placed in 105 DEG C
Moisture is removed in baking, until cooling is taken out after constant weight, removes the debris such as stone cleaning, with crusher in crushing to 4-8mm then ground, mistake 200
Mesh sieve.After bamboo and wood material is dried, Jing special equipments crush, grind, sieve, and become the powder bamboo and wood powder of 200 mesh.
(2) the sludge and bamboo and wood powder of crossing 200 eye mesh screens are pressed into 1:1 ratio respectively takes 50g even blend.
(3) the material of (2) even blend is put into into the process of atmosphere Muffle furnace high temperature pyrolysis.First it is passed through with 200mL/min speed
Nitrogen 15min, then starts to warm up heating, so that 10 DEG C/min programming rates are to 400 DEG C and keep temperature 3h, closes heating system
System is allowed to Temperature fall to 80 DEG C, and taking-up material is placed on cooling in exsiccator and obtains high temperature pyrolysis product.
(4), after high temperature pyrolysis product is cooled to room temperature, 5min is embathed with the hydrochloric acid of 1M.
(5) hydrochloric acid is filtered off, filtering residue deionized water is soaked, filtered after stirring and washing 15min, the deionized water being repeated 5 times
Embathe and filtration step.Filter upper thing is put into baking oven finally to dry in 105 DEG C to constant weight, to be taken out and this reality is obtained after being dried cooling
Apply the finished product of example.
Determination of iodine value：Using the sludge base charcoal prepared by the present embodiment step, its iodine number is with specific surface area by simple
301.1mg/g, the 245.3m for the sludge base charcoal prepared using municipal sludge2/ g brings up to 588.7mg/g, 512.4m2/g。
The application of sewage disposal：Weigh 2g steps (5) gained finished product, phosphorus-containing wastewater of the input equipped with 1L electromechanics polishing processes
In, stirring reaction postprecipitation takes supernatants after precipitation and determines its corresponding water quality index, shows that the doping bamboo and wood powder of the present embodiment is dirty
COD of the mud base charcoal to the waste waterCr, TN and TP clearances be respectively 56.9%, 23.9% and 98.2%, more merely adopt city
Made by political affairs sludge, sludge base charcoal improves 18.8%, 7.4% and 17.1% respectively.
Municipal sludge described in the present embodiment takes from Fuzhou City city sewage treatment plant.
Embodiment 2
(1) next municipal sludge (moisture content 80%) will be fetched to air-dry under field conditions (factors), baking oven then be placed in 105 DEG C
Moisture is removed in baking, until cooling is taken out after constant weight, removes the debris such as stone cleaning, with crusher in crushing to 4-8mm then ground, mistake 200
Mesh sieve.After bamboo and wood material is dried, Jing special equipments crush, grind, sieve, and become the powder bamboo and wood powder of 200 mesh.
(2) the sludge and bamboo and wood powder of crossing 200 eye mesh screens are pressed into 2:1 ratio respectively takes 60g and 30g even blend.
(3) the material for (2) mixing is put into into the process of atmosphere Muffle furnace high temperature pyrolysis.Nitrogen is passed through with 150mL/min speed first
15min, then starts to warm up heating, so that 15 DEG C/min programming rates are to 500 DEG C and keep temperature 2.5h, closes heating system
Temperature fall to 80 DEG C is allowed to, taking-up material is placed on cooling in exsiccator and obtains high temperature pyrolysis product.
(4), after high temperature pyrolysis product is cooled to room temperature, 5min is embathed with the hydrochloric acid of 1M.
(5) hydrochloric acid is filtered off, filtering residue deionized water is soaked, filtered after stirring and washing 15min, the deionized water being repeated 5 times
Embathe and filtration step.Filter upper thing is put into baking oven finally to dry in 105 DEG C to constant weight, to be taken out and this reality is obtained after being dried cooling
Apply the finished product of example.
Determination of iodine value：Using the sludge base charcoal prepared by the present embodiment step, its iodine number is with specific surface area by simple
253.7mg/g, the 205.3m for the sludge base charcoal prepared using municipal sludge2/ g brings up to 472.6mg/g, 441.2m2/g。
The application of sewage disposal：Weigh 2g steps (5) gained finished product, phosphorus-containing wastewater of the input equipped with 1L electromechanics polishing processes
In, stirring reaction postprecipitation takes supernatants after precipitation and determines its corresponding water quality index, shows that the doping bamboo and wood powder of the present embodiment is dirty
COD of the mud base charcoal to the waste waterCr, TN and TP clearances be respectively 54.3%, 22.6% and 96.8%, more merely adopt city
Made by political affairs sludge, sludge base charcoal improves 17.9%, 6.3% and 16.1% respectively.
Municipal sludge described in the present embodiment takes from Fuzhou City city sewage treatment plant.
Embodiment 3
(1) next municipal sludge (moisture content 76%) will be fetched to air-dry under field conditions (factors), baking oven then be placed in 105 DEG C
Moisture is removed in baking, until cooling is taken out after constant weight, removes the debris such as stone cleaning, with crusher in crushing to 4-8mm then ground, mistake 200
Mesh sieve.After bamboo and wood material is dried, Jing special equipments crush, grind, sieve, and become the powder bamboo and wood powder of 200 mesh.
(2) the sludge and bamboo and wood powder of crossing 200 eye mesh screens are pressed into 3:1 ratio even blend.
(3) the material for (2) mixing is put into into the process of atmosphere Muffle furnace high temperature pyrolysis.Nitrogen is passed through with 100mL/min speed first
15min, then starts to warm up heating, and so that 20 DEG C/min programming rates are to 600 DEG C and keep temperature 2h, closing heating system makes
Temperature fall to 80 DEG C, take out material and be placed on cooling in exsiccator and obtain high temperature pyrolysis.
(4), after high temperature pyrolysis product is cooled to room temperature, 5min is embathed with the hydrochloric acid of 1M.
(5) hydrochloric acid is filtered off, filtering residue deionized water is soaked, filtered after stirring and washing 15min, the deionized water being repeated 5 times
Embathe and filtration step.Filter upper thing is put into baking oven finally to dry in 105 DEG C to constant weight, to be taken out and this reality is obtained after being dried cooling
Apply the finished product of example.
Determination of iodine value：Using the sludge base charcoal prepared by the present embodiment step, its iodine number is with specific surface area by simple
215.2mg/g, the 163.3m for the sludge base charcoal prepared using municipal sludge2/ g, brings up to 408.5mg/g, 354.5m2/g。
The application of sewage disposal：Weigh 2g steps (5) gained finished product, phosphorus-containing wastewater of the input equipped with 1L electromechanics polishing processes
In, stirring reaction postprecipitation takes supernatants after precipitation and determines its corresponding water quality index, shows that the doping bamboo and wood powder of the present embodiment is dirty
COD of the mud base charcoal to the waste waterCr, TN and TP clearances be respectively 50.6%, 20.6% and 91.9%, more merely adopt city
Made by political affairs sludge, sludge base charcoal improves 16.6%, 6.5% and 16.7% respectively.
Municipal sludge described in the present embodiment takes from Fuzhou City city sewage treatment plant.
Claims (2)
1. a kind of sludge base charcoal preparation method of doping bamboo and wood powder, is characterized in that：
1）Raw material prepares
Sludge air drying, is put into baking oven and dries to constant weight in 105 DEG C, is crushed to 4-8mm, then ground, 200 mesh sieves excessively；Bamboo and wood material shines
After dry, Jing crushes, grinds, sieves, and becomes the bamboo and wood powder of 200 mesh；
2）Preparation process
（1）By 1～3:The municipal sludge mixed and bamboo and wood powder are sufficiently mixed by 1 weight ratio；
（2）By step（1）Material insert atmosphere Muffle furnace high temperature pyrolysis, stopping heat and be cooled to 80 DEG C of dischargings, be placed on
Cooling in exsiccator obtains high temperature pyrolysis product；
（3）By step（2）The hydrochloric acid for obtaining high temperature pyrolysis product 1M embathes 5min；Hydrochloric acid is filtered off, by solid content deionization
Filter after water immersion 20min, deionized water immersion is repeated 5 times with filtration step, then filter upper thing is put into baking oven and dry in 105 DEG C
To constant weight, the final sludge base charcoal for obtaining doping bamboo and wood powder.
2. the sludge base charcoal preparation method of a kind of doping bamboo and wood powder according to claim 1, is characterized in that described
High temperature pyrolysis, refer to the nitrogen 15min for being first passed through 100-200 mL/min, after be heated to the programming rate of 10-20 DEG C/min
400-600 DEG C, stop 2-3h.
Priority Applications (1)
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Cited By (5)
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|---|---|---|---|---|
| CN107746352A (en) * | 2017-09-28 | 2018-03-02 | 青岛农业大学 | Charcoal base manure preparation method and preparation system based on phoenix tree leaf and sludge |
| CN107876008A (en) * | 2017-10-20 | 2018-04-06 | 福建省农业科学院农业生态研究所 | A kind of fen adsorbent, preparation method and applications |
| CN108529622A (en) * | 2018-07-10 | 2018-09-14 | 南京林业大学 | A method of utilizing bamboo matter building waste modified sewage sludge matrix activated carbon |
| WO2021082761A1 (en) * | 2019-11-01 | 2021-05-06 | 广州大学 | Lanthanum carbonate modified co-pyrolysis sludge biochar and preparation method and application thereof |
| CN113648973A (en) * | 2021-09-18 | 2021-11-16 | 沈阳大学 | Preparation method of sludge-based biochar doped with mushroom bran |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746352A (en) * | 2017-09-28 | 2018-03-02 | 青岛农业大学 | Charcoal base manure preparation method and preparation system based on phoenix tree leaf and sludge |
| CN107876008A (en) * | 2017-10-20 | 2018-04-06 | 福建省农业科学院农业生态研究所 | A kind of fen adsorbent, preparation method and applications |
| CN107876008B (en) * | 2017-10-20 | 2021-01-26 | 福建省农业科学院农业生态研究所 | Adsorbent for methane tank, preparation method and application thereof |
| CN108529622A (en) * | 2018-07-10 | 2018-09-14 | 南京林业大学 | A method of utilizing bamboo matter building waste modified sewage sludge matrix activated carbon |
| WO2021082761A1 (en) * | 2019-11-01 | 2021-05-06 | 广州大学 | Lanthanum carbonate modified co-pyrolysis sludge biochar and preparation method and application thereof |
| CN113648973A (en) * | 2021-09-18 | 2021-11-16 | 沈阳大学 | Preparation method of sludge-based biochar doped with mushroom bran |
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Application publication date: 20170322 |