CN105170090B - The method for preparing residual active sludge matrix activated carbon water treatment agent - Google Patents
The method for preparing residual active sludge matrix activated carbon water treatment agent Download PDFInfo
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- CN105170090B CN105170090B CN201510670483.0A CN201510670483A CN105170090B CN 105170090 B CN105170090 B CN 105170090B CN 201510670483 A CN201510670483 A CN 201510670483A CN 105170090 B CN105170090 B CN 105170090B
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Abstract
The present invention relates to a kind of method for preparing residual active sludge matrix activated carbon water treatment agent, the problem of mainly solving to there is no the method for preparing residual active sludge matrix activated carbon water treatment agent in the prior art.The present invention comprises the following steps by using a kind of method for preparing residual active sludge matrix activated carbon water treatment agent：(1) residual active sludge matrix activated carbon, polyacrylamide, lime, alum are well mixed according to a certain percentage；(2) water is added in silica gel solution and is made into silica sol binder, it is then added in the sample in step (1), progress air pre-oxidation in 60 100 DEG C of drying box is positioned over after being sufficiently mixed, the sample of cooling is warming up to 300 500 DEG C in a nitrogen atmosphere, constant temperature calcining 13 hours, the technical scheme that the water treatment agent is can obtain after cooling preferably solves above mentioned problem, in being prepared available for water treatment agent.
Description
Technical field
The present invention relates to a kind of method for preparing residual active sludge matrix activated carbon water treatment agent.
Background technology
Organic pollution in powdered activated carbon absorption disposal sewage is a ripe technology, and this method has simply,
Easy to operate, adsorption rate is fast, the advantage of high adsorption capacity.But because the regeneration of activated carbon powder is difficult, it can only often use one
It is secondary, therefore cost is higher.Therefore the general advanced treating (tertiary treatment) for being used for waste water.But also there is the auxiliary as coagulation
Process, such case requires that adsorbent is cheap, and treatment effeciency is not typically high.Therefore, development process effect is good, adsorption efficiency is high,
Acticarbon cheap and easy to get turns into the key that the technology is widely applied.
The main component of residual active sludge is biosolids, i.e., by xenogeneic subjects such as bacterium class, Mycophyta, protozoans
The mixture that group is constituted.Most of material is organic matter in excess sludge, wherein the about crude protein containing 60%-70%
Matter, 25% or so carbohydrate, and inorganic ash content only accounts for 5% or so.Due to containing more carbon in residual active sludge,
Possesses the objective condition for preparing activated carbon.Although Properties of Activated Carbon is not high as made from residual active sludge, practical application
It is also less, but it is increasingly subject to favor because its is cheap, carbon content rate is high, material is easy to get, raw material is sufficient and green non-poisonous.With surplus
Remaining activated sludge is that the activated carbon obtained by raw material is respectively provided with flourishing microcellular structure and larger specific surface area, this activated carbon
Good treatment effect is respectively provided with to dyeing waste water, heavy metal-containing waste water.
The content of the invention
The technical problems to be solved by the invention are to there is no to prepare at residual active sludge matrix activated carbon water in the prior art
There is provided a kind of new method for preparing residual active sludge matrix activated carbon water treatment agent for the problem of managing the method for agent.This method is used
In water treatment agent preparation in, can reach to leakage adsorb, separation, harmless treatment purpose.
To solve the above problems, the technical solution adopted by the present invention is as follows：One kind prepares residual active sludge matrix activated carbon
The method of water treatment agent, comprises the following steps：(1) by residual active sludge matrix activated carbon, polyacrylamide, lime, bright
Alum is well mixed according to a certain percentage；(2) water is added in silica gel solution and is made into silica sol binder, be then added to step
(1) in the sample in, progress air pre-oxidation in 60-100 DEG C of drying box is positioned over after being sufficiently mixed, the sample of cooling is in nitrogen
300-500 DEG C is warming up under gas atmosphere, constant temperature calcining 1-3 hours can obtain the water treatment agent after cooling；Wherein, oil-containing
Sludge-based activated carbon, polyacrylamide, lime, alum, Ludox, the weight ratio of water are 70-100：30-50：20-40：
10-20：30-60.
In above-mentioned technical proposal, it is preferable that air preoxidation time is：6-24h.
The present invention provides a kind of method that utilization residual active sludge matrix activated carbon prepares water treatment agent, due to residual activity
Contain more carbon in sludge, possess the objective condition for preparing activated carbon.The activated carbon price as made from residual active sludge
Cheap, carbon content rate is high, material is easy to get, raw material is sufficient and it is green non-poisonous and be increasingly subject to favor.With residual active sludge base activity
Charcoal is that the activated carbon obtained by raw material is respectively provided with flourishing microcellular structure and larger specific surface area, by orienting regulation activity charcoal
Pore-size distribution and surface functional group, can reach to leakage adsorb, separation, harmless treatment purpose, achieve preferably
Technique effect.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
(100 mesh, specific surface area is 943m to residual active sludge matrix activated carbon2/ g) 70g, polyacrylamide 30g, stone
Ash (150 mesh) 20g, alum 10g, Ludox 30g, appropriate amount of water.
Water treatment agent is prepared according to following steps：(1) by residual active sludge matrix activated carbon, polyacrylamide, stone
Ash, alum are well mixed according to a certain percentage；(2) 30g silica gel solutions are weighed, 30g water is added and is made into binding agent, be then added to
In sample in step (1), the air in 80 DEG C of drying boxes that is positioned over after being sufficiently mixed pre-oxidizes taking-up after 12h, Temperature fall；
(3) sample after pre-oxidation is warming up to 400 DEG C with 5 DEG C/min in a nitrogen atmosphere, constant temperature is calcined for 2 hours, dropped naturally
Taken out after temperature.
Water treatment agent is used to purify product oil storage field oil-polluted water, 500ML, COD (COD) is 2374, is added
2.5g water treatment agents, after stirring, precipitation reaction 3h, COD clearance are 82.1%.
【Embodiment 2】
(100 mesh, specific surface area is 943m to residual active sludge matrix activated carbon2/ g) 70g, polyacrylamide 40g, stone
Ash (150 mesh) 30g, alum 20g, Ludox 40g, appropriate amount of water.
Water treatment agent is prepared according to following steps：(1) by residual active sludge matrix activated carbon, polyacrylamide, stone
Ash, alum are well mixed according to a certain percentage；(2) 40g silica gel solutions are weighed, 40g water is added and is made into binding agent, be then added to
In sample in step (1), the air in 80 DEG C of drying boxes that is positioned over after being sufficiently mixed pre-oxidizes taking-up after 12h, Temperature fall；
(3) sample after pre-oxidation is warming up to 400 DEG C with 5 DEG C/min in a nitrogen atmosphere, constant temperature is calcined for 2 hours, dropped naturally
Taken out after temperature.
Water treatment agent is used to purify product oil storage field oil-polluted water, 500ML, COD is 2374, adds 2.5g water treatment agents,
After stirring, precipitation reaction 3h, COD clearance are 89.1%.
【Embodiment 3】
(100 mesh, specific surface area is 943m to residual active sludge matrix activated carbon2/ g) 80g, polyacrylamide 40g, stone
Ash (150 mesh) 20g, alum 10g, Ludox 30g, appropriate amount of water.
Water treatment agent is prepared according to following steps：(1) by residual active sludge matrix activated carbon, polyacrylamide, stone
Ash, alum are well mixed according to a certain percentage；(2) 30g silica gel solutions are weighed, 30g water is added and is made into binding agent, be then added to
In sample in step (1), the air in 80 DEG C of drying boxes that is positioned over after being sufficiently mixed pre-oxidizes taking-up after 16h, Temperature fall；
(3) sample after pre-oxidation is warming up to 400 DEG C with 5 DEG C/min in a nitrogen atmosphere, constant temperature is calcined for 2 hours, dropped naturally
Taken out after temperature.
Water treatment agent is used to purify product oil storage field oil-polluted water, 500ML, COD is 2374, adds 2.5g water treatment agents,
After stirring, precipitation reaction 3h, COD clearance are 92.1%.
Obviously, the method that utilization residual active sludge matrix activated carbon of the invention prepares water treatment agent, it is dirty with residual activity
Mud matrix activated carbon is that the activated carbon obtained by raw material is respectively provided with flourishing microcellular structure and larger specific surface area, passes through to orient and adjusts
Control activated carbon pore size distribution and surface functional group, can reach to leakage adsorb, separation, harmless treatment purpose, obtain
Preferable technique effect.
Claims (1)
1. a kind of method for preparing residual active sludge matrix activated carbon water treatment agent, comprises the following steps：(1) it is residual activity is dirty
Mud matrix activated carbon, polyacrylamide, lime, alum are well mixed according to a certain percentage；(2) water is added in silica gel solution
Silica sol binder is made into, is then added to and is positioned over 60-100 DEG C of drying box in the sample in step (1) after being sufficiently mixed
Middle progress air pre-oxidation, the sample of cooling is warming up to 300-500 DEG C, constant temperature calcining 1-3 hours, after cooling in a nitrogen atmosphere
It can obtain the water treatment agent；Wherein, residual active sludge matrix activated carbon, polyacrylamide, lime, alum, silicon are molten
The weight ratio of glue is 70-100：30-50：20-40：10-20：30-60；Air preoxidation time is：6-24h.
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| CN106430337A (en) * | 2016-08-27 | 2017-02-22 | 长沙理工大学 | Industrial production wastewater treating agent with plants as raw materials and application method thereof |
| CN106732379A (en) * | 2017-02-23 | 2017-05-31 | 华南理工大学 | A kind of sludge-based activated carbon with efficient absorption PFOS and PFOA efficiency and preparation method and application |
| CN107188173B (en) * | 2017-05-17 | 2020-08-11 | 安徽省舒城华竹实业有限公司 | Preparation method of sulfydryl functionalized mesoporous bamboo charcoal material |
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| EP0129259B1 (en) * | 1983-04-29 | 1987-08-19 | Laboratorium Für Adsorptionstechnik Gmbh | Activated carbon product |
| CN102432007A (en) * | 2011-09-23 | 2012-05-02 | 南京工业大学 | Method for preparing activated carbon by physical activation of excess sludge |
| CN102626607A (en) * | 2012-05-04 | 2012-08-08 | 江苏省交通规划设计院股份有限公司 | Preparation method and application of residual activated sludge adsorbent |
| CN103739034B (en) * | 2014-01-27 | 2016-08-24 | 北京戴斯科技有限公司 | A kind of compound type purifying agent and preparation method thereof |
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Effective date of registration: 20221110 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Safety Engineering Research Institute Co.,Ltd. Address before: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee before: SINOPEC Research Institute OF SAFETY ENGINEERING Patentee before: CHINA PETROLEUM & CHEMICAL Corp. |
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