CN106732362A - A kind of kitchen garbage is the sludge base charcoal preparation method of presoma - Google Patents
A kind of kitchen garbage is the sludge base charcoal preparation method of presoma Download PDFInfo
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- CN106732362A CN106732362A CN201611190610.8A CN201611190610A CN106732362A CN 106732362 A CN106732362 A CN 106732362A CN 201611190610 A CN201611190610 A CN 201611190610A CN 106732362 A CN106732362 A CN 106732362A
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- kitchen garbage
- dry powder
- sludge
- presoma
- constant weight
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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
- B01J2220/4875—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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Carbon And Carbon Compounds (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
It is the sludge base charcoal preparation method of presoma the present invention relates to a kind of kitchen garbage.The present invention is put into baking oven and dries to constant weight after the bed mud of municipal sludge is air-dried, broken, ground 200 mesh sieve obtains bed mud dry powder.The pastel of moisture content 80% is nursed one's health into after kitchen garbage is rubbed, baking oven is put into drying to constant weight, broken, ground 200 mesh sieve obtains kitchen waste dry powder.Bed mud dry powder is immersed in the KOH of 1 3mol/L, filtered filtration residue inserts baking oven and removes moisture in 105 DEG C of bakings, takes out cooling.By 1~5:Be sufficiently mixed for sludge dry powder and kitchen waste dry powder to insert in atmosphere Muffle furnace and be pyrolyzed by 1~2 weight portion, obtains thermal decomposition product.Embathed with hydrochloric acid, filtered after deionized water immersion 20min, repeated 5 times, then dried to constant weight, obtain the sludge base charcoal for presoma using kitchen garbage.The present invention is applied to dirty, wastewater treatment using its charcoal being made, and obtains good economy and environmental benefit.
Description
Technical field
The present invention relates to a kind of sludge base charcoal, more particularly to a kind of kitchen garbage is biological for the sludge base of presoma
Charcoal preparation method.
Background technology
Charcoal refers to the biomass remaining material after high temperature pyrolysis under anoxic conditions.Charcoal has larger ratio
Surface area and loose structure, with good absorption property, can adsorb heavy metal, the ammonia in water as sewage disposal adsorbent
Nitrogen, phosphate etc..
Kitchen garbage is food residues, containing a large amount of organic principles, there is very big environmental risk and harm.Economic development
Increase year by year along with kitchen garbage yield while raising with living standard, current China's kitchen garbage amount is more than 20,000
T/d, urgently obtains safety " outlet ".
Contain substantial amounts of organic matter in kitchen garbage, can be used as the raw material for preparing charcoal.Because its ingredient is multiple
Miscellaneous, the charcoal quality and performance being made have a long way to go compared with commercial biological charcoal, and its range of application is also restricted with value.
Water process often uses activated carbon process, and its high efficiency is recognized by industry.And sewage or waste water treatment is for institute
The activated carbon requirement quality for using is not high, therefore utilizes and can be applied to dirty (useless) water containing charcoal obtained in organic principle discarded object
Process field.
The present invention prepares charcoal from the theory of " treatment of wastes with processes of wastes against one another " using kitchen garbage, is applied to dirty (useless) water
Treatment, and obtain good effect.
The content of the invention
It is the sludge base charcoal preparation method of presoma it is an object of the invention to provide a kind of utilization kitchen garbage, should
Method is simple, easy to operate, and can realize " treatment of wastes with processes of wastes against one another " effect.
1st, raw material prepares
The bed mud (moisture content 72-80%) of municipal sludge is air-dried under field conditions (factors), is then placed in baking oven and is arrived in 105 DEG C of bakings
Constant weight, 4-8mm is crushed to after removing the debris such as stone, then ground, 200 mesh sieves excessively obtain bed mud dry powder.
By kitchen garbage draining and bulky grain debris are removed, the pastel of moisture content 80% is nursed one's health into after rubbing, be put into baking
Case is dried to constant weight in 105 DEG C, is crushed to 4-8mm, grinding, is crossed 200 mesh sieves and is obtained kitchen waste dry powder.
2nd, preparation process
(1) the bed mud dry powder for crossing 200 mesh sieves is immersed in 8-24h in the KOH of 1-3mol/L, filtered filtration residue inserts baking oven
Moisture is removed in 105 DEG C of bakings, until taking out cooling after constant weight.
(2) 1~5 is pressed:Be sufficiently mixed for sludge dry powder and kitchen waste dry powder by 1~2 weight ratio, by mixed material
Insert in atmosphere Muffle furnace be pyrolyzed, be passed through the nitrogen 15min of 100-200mL/min, after added with the programming rate of 10-20 DEG C/min
Heat to 400-600 DEG C, after stop 2-3h, heat and be cooled to 80 DEG C of dischargings by stopping, being placed on cooling in drier and obtains pyrolysis product
Thing.
(3) the thermal decomposition product for (2) step being obtained embathes 5min with the hydrochloric acid of 1mol/L.
(4) step hydrochloric acid (3) is filtered off, is filtered after solid content is soaked into 20min with deionized water, deionized water is soaked and mistake
Filter step is repeated 5 times, until filtrate pH is 7-8.The upper thing of filter is put into baking oven in 105 DEG C of drying to constant weight again, it is final to obtain profit
With the sludge base charcoal that kitchen garbage is presoma.
The kitchen garbage of the present invention refers to all kitchen residues in hotel, restaurant, dining room.
The advantage of the invention is that：
From the theory of " changing waste into resources ", a kind of new application turned waste into wealth of kitchen garbage is imparted, using its system
Into charcoal be applied to dirty (useless) water process, and obtain good economic benefit and environmental benefit.
Specific embodiment
Embodiment 1
(1) the bed mud (moisture content 72%) of municipal sludge is air-dried under field conditions (factors), be then placed in baking oven in 105 DEG C of bakings
To constant weight, 4-8mm is crushed to after removing the debris such as stone, then ground, 200 mesh sieves excessively obtain bed mud dry powder.
By kitchen garbage draining and bulky grain debris are removed, the pastel of moisture content 80% is nursed one's health into after rubbing, be put into baking
Case is dried to constant weight in 105 DEG C, is crushed to 4-8mm, grinding, is crossed 200 mesh sieves and is obtained kitchen waste dry powder；The meal of 200 mesh sieves will be crossed
Kitchen waste dry powder end is immersed in 24h in the KOH of 1mol/L, and filtered filtration residue inserts baking oven and removes moisture in 105 DEG C of bakings, until constant weight
Cooling is taken out afterwards.
(2) 1 is pressed:1 weight ratio take 50g sludge dry powders respectively and kitchen waste dry powder is sufficiently mixed, by mixed material
It is put into the treatment of atmosphere Muffle furnace high temperature pyrolysis.Nitrogen 15min is first passed through with 200mL/min speed, heating is then started to warm up, with
10 DEG C/min programming rates are to 400 DEG C and keep temperature 3h, close heating system and are allowed to Temperature fall to 80 DEG C, take out material
It is placed on cooling in drier and obtains thermal decomposition product.
(3) after thermal decomposition product is cooled to room temperature, 5min is embathed with the hydrochloric acid of 1mol/L.
(4) hydrochloric acid is filtered off, filter residue is soaked with deionized water, filtered after stirring and washing 15min, the deionized water being repeated 5 times
Embathe and filtration step.The upper thing of filter is finally put into baking oven in 105 DEG C of drying to constant weight, to be taken out and obtain this reality after drying cooling
The described kitchen garbage for applying example is the sludge base charcoal finished product of presoma.
Determination of iodine value：Iodine number using the bed mud base charcoal prepared by the present embodiment step is respectively with specific surface area
489.9mg/g、463.7m2/g。
For treatment of Phosphorus Containing Waste Water：When dosage is 1g/L, charcoal obtained in the present embodiment is to TP concentration 186mg/L
Electromechanical polishing process treatment of Phosphorus Containing Waste Water, water outlet TP concentration 6.51mg/L, TP clearance difference 96.5%.
For leachate pretreatment：When dosage is 800mg/L, charcoal refers to main water quality obtained in the present embodiment
Mark：CODCrConcentration 3546mg/L, NH4 +The percolate pretreatment of-N concentration 867mg/L, TP concentration 16.7mg/L, above-mentioned three
The clearance difference 79.3%, 33.2% and 96.7% of item index.
Municipal sludge described in the present embodiment takes from Fuzhou City city sewage treatment plant.
Embodiment 2
(1) the bed mud (moisture content 78%) of municipal sludge is air-dried under field conditions (factors), be then placed in baking oven in 105 DEG C of bakings
To constant weight, 4-8mm is crushed to after removing the debris such as stone, then ground, 200 mesh sieves excessively obtain bed mud dry powder.
By kitchen garbage draining and bulky grain debris are removed, the pastel of moisture content 80% is nursed one's health into after rubbing, be put into baking
Case is dried to constant weight in 105 DEG C, is crushed to 4-8mm, grinding, is crossed 200 mesh sieves and is obtained kitchen waste dry powder；
The kitchen waste dry powder for crossing 200 mesh sieves is immersed in 16h in the KOH of 2mol/L, filtered filtration residue insert baking oven in
Moisture is removed in 105 DEG C of bakings, until taking out cooling after constant weight.
(2) 3 are pressed:1 weight ratio take 90g sludge dry powders respectively and 30g kitchen waste dry powders are sufficiently mixed, will mix
Material is put into the treatment of atmosphere Muffle furnace high temperature pyrolysis.Nitrogen 15min is first passed through with 200mL/min speed, is then started to warm up and is added
Heat, to 500 DEG C and temperature 2.5h is kept with 10 DEG C/min programming rates, is closed heating system and is allowed to Temperature fall to 80 DEG C,
Taking-up material is placed on cooling in drier and obtains high temperature pyrolysis product.
(3) after high temperature pyrolysis product being cooled into room temperature, 5min is embathed with the hydrochloric acid of 1mol/L..
(4) hydrochloric acid is filtered off, filter residue is soaked with deionized water, filtered after stirring and washing 15min, the deionized water being repeated 5 times
Embathe and filtration step.The upper thing of filter is finally put into baking oven in 105 DEG C of drying to constant weight, to be taken out and obtain this reality after drying cooling
It is the sludge base charcoal finished product of presoma to apply the kitchen garbage described in example.
Determination of iodine value：Iodine number using the bed mud base charcoal prepared by the present embodiment step is respectively with specific surface area
526.2mg/g、503.5m2/g。
For treatment of Phosphorus Containing Waste Water：When dosage is 1g/L, charcoal obtained in the present embodiment is to TP concentration 186mg/L
Electromechanical polishing process treatment of Phosphorus Containing Waste Water, water outlet TP concentration 5.20mg/L, TP clearance difference 97.2%.
For leachate pretreatment：When dosage is 800mg/L, charcoal refers to main water quality obtained in the present embodiment
Mark：CODCrConcentration 3546mg/L, NH4 +The percolate pretreatment of-N concentration 867mg/L, TP concentration 16.7mg/L, above-mentioned three
The clearance difference 80.2%, 33.4% and 97.1% of item index.
Municipal sludge described in the present embodiment takes from Fuzhou City city sewage treatment plant.
Embodiment 3
(1) the bed mud (moisture content 78%) of municipal sludge is air-dried under field conditions (factors), be then placed in baking oven in 105 DEG C of bakings
To constant weight, 4-8mm is crushed to after removing the debris such as stone, then ground, 200 mesh sieves excessively obtain bed mud dry powder.
By kitchen garbage draining and bulky grain debris are removed, the pastel of moisture content 80% is nursed one's health into after rubbing, be put into baking
Case is dried to constant weight in 105 DEG C, is crushed to 4-8mm, grinding, is crossed 200 mesh sieves and is obtained kitchen waste dry powder.
The kitchen waste dry powder for crossing 200 mesh sieves is immersed in 8h in the KOH of 3mol/L, filtered filtration residue insert baking oven in
Moisture is removed in 105 DEG C of bakings, until taking out cooling after constant weight.
(2) 5 are pressed:2 weight ratios take 100g sludge dry powders respectively and 40g kitchen waste dry powders are sufficiently mixed, will mix
Material is put into the treatment of atmosphere Muffle furnace high temperature pyrolysis.Nitrogen 15min is first passed through with 200mL/min speed, is then started to warm up and is added
Heat, to 600 DEG C and temperature 2h is kept with 10 DEG C/min programming rates, is closed heating system and is allowed to Temperature fall to 80 DEG C, is taken
Go out material and be placed on cooling in drier.
(3) after the product drop after being pyrolyzed is cooled to room temperature, 5min is embathed with the hydrochloric acid of 1M..
(4) hydrochloric acid is filtered off, filter residue is soaked with deionized water, filtered after stirring and washing 15min, the deionized water being repeated 5 times
Embathe and filtration step.The upper thing of filter is finally put into baking oven in 105 DEG C of drying to constant weight, to be taken out and obtain this reality after drying cooling
Apply the finished product of example.
Determination of iodine value：Iodine number using the bed mud base charcoal prepared by the present embodiment step is respectively with specific surface area
349.9mg/g、362.8m2/g。
For treatment of Phosphorus Containing Waste Water：When dosage is 1g/L, charcoal obtained in the present embodiment is to TP concentration 186mg/L
Electromechanical polishing process treatment of Phosphorus Containing Waste Water, water outlet TP concentration 11.90mg/L, TP clearance difference 93.6%.
For leachate pretreatment：When dosage is 800mg/L, charcoal refers to main water quality obtained in the present embodiment
Mark：CODCrConcentration 3546mg/L, NH4 +The percolate pretreatment of-N concentration 867mg/L, TP concentration 16.7mg/L, above-mentioned three
The clearance difference 73.4%, 30.8% and 90.3% of item index.
Municipal sludge described in the present embodiment takes from Fuzhou City city sewage treatment plant.
Claims (7)
1. a kind of kitchen garbage is the sludge base charcoal preparation method of presoma, it is characterized in that：
1）Raw material prepares
Baking oven is put into after the bed mud of the municipal sludge of moisture content 72-80% is air-dried to be dried to constant weight in 105 DEG C, is crushed to 4-8mm,
Ground again, 200 mesh sieves excessively obtain bed mud dry powder；By kitchen garbage draining and bulky grain debris are removed, nursed one's health into after rubbing aqueous
The pastel of rate 80%, is put into baking oven and is dried to constant weight in 105 DEG C, is crushed to 4-8mm, grinding, crosses 200 mesh sieves and obtains kitchen garbage
Dry powder；
2）Preparation process
（1）The bed mud dry powder for crossing 200 mesh sieves is immersed in KOH, filtered filtration residue inserts baking oven and removes moisture in 105 DEG C of bakings, directly
Cooling is taken out after to constant weight；
（2）By 1~5:Being sufficiently mixed sludge dry powder and kitchen waste dry powder of 1~2 weight ratio, mixed material is put
Enter pyrolysis in atmosphere Muffle furnace, be placed on cooling in drier and obtain thermal decomposition product.
2.（3）By step（2）The thermal decomposition product for obtaining embathes 5min with the hydrochloric acid of 1 mol/L.
3.（4）Filter off step（3）Hydrochloric acid, by solid content with deionized water soak 20min after filter, deionized water immersion and mistake
Filter step is repeated 5 times, until filtrate pH is 7-8.
4. the upper thing of filter is put into baking oven in 105 DEG C of drying to constant weight, the final sludge obtained using kitchen garbage for presoma again
Base charcoal.
5. a kind of kitchen garbage according to claim 1 is the sludge base charcoal preparation method of presoma, it is characterized in that
Described is immersed in KOH, and the concentration of KOH is 1~3mol/L, soaks 8~24h.
6. a kind of kitchen garbage according to claim 1 is the sludge base charcoal preparation method of presoma, it is characterized in that
Described pyrolysis, passes first into the nitrogen 15min of 100-200 mL/min, after be heated to the programming rate of 10-20 DEG C/min
400-600 DEG C, after stopping 2-3h, stopping is heated and is cooled to 80 DEG C of dischargings.
7. a kind of kitchen garbage according to claim 1 is the sludge base charcoal preparation method of presoma, it is characterized in that
Described kitchen garbage refers to all kitchen residues in hotel, restaurant, dining room.
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| CN201611190610.8A CN106732362A (en) | 2016-12-21 | 2016-12-21 | A kind of kitchen garbage is the sludge base charcoal preparation method of presoma |
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| CN201611190610.8A CN106732362A (en) | 2016-12-21 | 2016-12-21 | A kind of kitchen garbage is the sludge base charcoal preparation method of presoma |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720977A (en) * | 2017-09-27 | 2018-02-23 | 浙江海洋大学 | A kind of ecological soil system nitrogen phosphorus pollution of area source cutting method based on compound bio charcoal |
| CN111266086A (en) * | 2020-01-22 | 2020-06-12 | 青岛农业大学 | Method for preparing magnetic biochar from kitchen waste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120575A (en) * | 2011-03-04 | 2011-07-13 | 南京工业大学 | Process for preparing active carbon from chemical sludge |
| CN104084128A (en) * | 2014-07-22 | 2014-10-08 | 天津城建大学 | Kitchen waste residue modified sludge activated carbon for sweater treatment |
| CN104557160A (en) * | 2015-01-19 | 2015-04-29 | 青岛农业大学 | Method for preparing biological charcoal by utilizing kitchen waste |
-
2016
- 2016-12-21 CN CN201611190610.8A patent/CN106732362A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120575A (en) * | 2011-03-04 | 2011-07-13 | 南京工业大学 | Process for preparing active carbon from chemical sludge |
| CN104084128A (en) * | 2014-07-22 | 2014-10-08 | 天津城建大学 | Kitchen waste residue modified sludge activated carbon for sweater treatment |
| CN104557160A (en) * | 2015-01-19 | 2015-04-29 | 青岛农业大学 | Method for preparing biological charcoal by utilizing kitchen waste |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720977A (en) * | 2017-09-27 | 2018-02-23 | 浙江海洋大学 | A kind of ecological soil system nitrogen phosphorus pollution of area source cutting method based on compound bio charcoal |
| CN111266086A (en) * | 2020-01-22 | 2020-06-12 | 青岛农业大学 | Method for preparing magnetic biochar from kitchen waste |
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Application publication date: 20170531 |