CN102464393A - Industrial waste residue based composite desulfuration material and application method thereof - Google Patents
Industrial waste residue based composite desulfuration material and application method thereof Download PDFInfo
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- CN102464393A CN102464393A CN2011103194147A CN201110319414A CN102464393A CN 102464393 A CN102464393 A CN 102464393A CN 2011103194147 A CN2011103194147 A CN 2011103194147A CN 201110319414 A CN201110319414 A CN 201110319414A CN 102464393 A CN102464393 A CN 102464393A
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Abstract
The invention discloses an industrial waste residue based composite desulfuration material and an application method thereof. The preparation method for the industrial waste residue based composite desulfuration material comprises the following steps of: (1) respectively taking 75-85% of coal ash, 10-20% of bottom ash and 3-13% of bonder in percentage by weight, grinding and forming a raw material; (2) after forming the raw material, placing into a furnace cavity, slowly heating up to 120 degrees centigrade, and insulating for 60min; (3) re-heating up to 850 degrees centigrade and insulating for 25min; (4) adding 2-6% of organic surfactant, soaking for 15-30min, continuing to heat up to 1170-1200 degrees centigrade, insulating for 25-35min and stopping heating; and (5) grinding and sieving a sintered body of the raw material to obtain a particulate matter with 85-100 meshes. The obtained particulate matter in percentage by weight of 0.1-0.5% is added into wastewater containing sulfides with concentration of 2-25mg/L, the wastewater is stirred for reaction for 15-30min, stood and deposited, and is subjected to solid-liquid separation; and the supernatant is discharged, so that the concentration of the sulfides in the yielding water can be lower than 0.05mg/L.
Description
Technical field
The present invention relates to a kind of industrial residue based composite sulfur removal material and application method thereof, particularly handle the lower concentration sulfur-containing waste water of sulphur content, belong to the water prevention and cure of pollution technical field at 2mg/L~25mg/L.
Background technology
Sulfur-containing waste water is mainly derived from industries such as oil refining, coking, pharmacy, process hides, and sulphur and compound thereof have stronger corrodibility to equipment pipe, and the carbonylsulfide blocking pipe that generates, and simultaneously environment for human survival is produced serious harm.When the pH of waterways waste water is 7.0~8.0, as long as there is the sodium sulphite of very small amount to exist, just might in the upper air of waterways, produce hydrogen sulfide, when content was 0.05mg/L in air, the people will poison, and when greater than 1mg/L, will cause the people dead.Sulfides from wastewater can also jeopardize the growth of aquatic animals and plants, if with containing the waste water irrigation farmland of sulfide, the root growth of plant will be suppressed, and makes the plant root blackout and rots, causes farm crop to wither.Therefore, administer sewage, reduce sulphur emissions, the sulphur content in the periodic monitor sewage has great significance to explained hereafter and environment protection.
At present, the processing of sulfur-containing waste water has a lot of methods, though these methods can effectively be removed the part sulphur in the waste water; But the content of sulphur does not reach emission standard yet in the water outlet; Treatment process commonly used has following several kinds: (1) air oxidation process is to be oxidized to nontoxic thiosulphate and vitriol through utilizing air will bear sulfidion, and this method is widely used, is easy to management, is mainly used in the pre-treatment of sulphur concentration in industries such as the little sulfur-bearing leather-making waste water of 800~1000mg/L and wastewater flow rate, petrochemical wastewaters; Its working cost is higher; Efficient is low, also can make a part of hydrogen sulfide get into air, pollutes; (2) chemical precipitation method is through in waste water, adding ferrous salt or molysite, makes itself and H
2S generates solid hard to tolerate, removes through solid-liquid separation then.This method speed is fast, efficient is high, but sulphur concentration is when too high, and the reagent consumption amount is many, and sludge quantity is big, and the sulphur after handling is that form with reduced sulfur is present in the mud, is prone to cause secondary pollution; (3) advanced oxidation processes utilization electricity, optical radiation, catalyzer etc. combine with common oxygenant, produce the extremely strong strong oxidizer hydroxyl radical free radical of oxidation capacity etc.This class methods efficient is high, but reactor drum is required height, and investment is expensive; (4) the biological process investment is little, but fluctuation of service, it is thorough inadequately to remove sulphur, adapts to handling high strength sulfide-bearing wastewater.After sulfur-containing waste water was through some row physics, chemistry, Biological Pretreatment, sulphur concentration also had about 2mg/L~25mg/L in the water outlet, can not reach national grade one discharge standard, and difficult the removal.
The present invention overcomes above-mentioned deficiency; Provide a kind of trade waste through a series of processing such as pulverizing, heat, bubble, heat again, the PM for particulate matter sweetening material that is prepared from, this method is simple to operate, handling property stability and high efficiency, working cost are cheap; Can realize sulphur concentration be 2mg/L~25mg/L waste water after treatment sulphur concentration be lower than 0.1mg/L; Reach one-level (A) standard in " integrated wastewater discharge standard ", have good social benefit and economic benefit, be beneficial to industry and promote.
Summary of the invention
The purpose of this invention is to provide a kind of industrial residue based composite sulfur removal material and application method thereof; Use through this high-efficiency desulfurization material; The sulphur concentration that sewage discharge is come out is lower than one-level (A) standard in country's " integrated wastewater discharge standard ", improves region environment.Through exploitation, production and application to material of the present invention; Can realize the utilization again and the resource utilization of trade waste; And appended the added value of utilization of waste material, reduced the cost recovery of sulphur resource, and sulphur concentration is lower than 0.1mg/L in the water outlet; The resource utilization of environment, realization waste not only can be protected, good social benefit and economic benefit can also be obtained.
Technical scheme of the present invention is: the preparation process of this composite sulfur removal material is:
(1) getting mass ratio respectively is that 75%~85% flyash, 10%~20% furnace bottom slag, 3%~13% adhesion agent are ground into material;
(2) put into furnace chamber after the raw material moulding, slowly be warming up to 120 ℃, be incubated 60 minutes, let physics moisture evaporation in the raw material;
When (3) being warming up to 850 ℃ again, be incubated 25 minutes, mineral are sloughed crystal water;
(4) employing adds 2%~6% tensio-active agent, soaks 15~30 minutes, continues to be warming up to 1170 ℃~1200 ℃ again, is incubated 25~35 minutes, stops heating, obtains sintered compact, naturally cools to normal temperature;
(5) again with its sintered compact through pulverize, sieving obtains 85~100 purpose particulate matters.
Described adhesion agent is one or both in salt gypsum, desulfurated plaster, water glass, the attapulgite.
Described tensio-active agent is one or both in sodium laurylsulfate, dioctyl sodium sulfosuccinate, glyceryl monostearate, heavy alkylbenzene sulfonic acid sodium, the high fatty alcohol sulfuric ester.
The application method of this composite sulfur removal material is: will obtain 85~100 purpose particulate matters is 1 ‰~5 ‰ to join in the waste water that sulphur concentration is 2mg/L~25mg/L by mass ratio; Behind stirring reaction 15~30min; Staticly settle; Solid-liquid separation, the supernatant discharging, sulphur concentration can be lower than 0.1mg/L in the water outlet.
The invention has the beneficial effects as follows:
(1) through the use of this high-efficiency desulfurization material, can make the sulphur concentration of sewage discharge be lower than one-level (A) standard in country's " integrated wastewater discharge standard ", improve region environment;
(2) through exploitation, production and application, can realize the resource utilization of trade waste, and append the added value of utilization of waste material, reduce the cost recovery of sulphur resource this new and effective sweetening material;
(3) simple to operate, the handling property stability and high efficiency of this method, working cost are cheap, and desulfuration efficiency is high.
The present invention innovates part and is: utilize some kinds of industrial residues to develop the high-efficiency desulfurization material that is fit to sewage treatment process with suiting measures to local conditions.The sweetening material of post precipitation is because of having higher sulphur content, and directly as fertilizer sources or soil improvement material are realized the recycling of sulphur resource with this; The present invention not only can protect environment, realize the resource utilization of waste, can also obtain good social benefit and economic benefit.
Embodiment
The preparation process of composite sulfur removal material of the present invention is:
(1) getting mass ratio respectively is that 75%~85% flyash, 7%~15% furnace bottom slag, 3%~13% adhesion agent are ground into material;
(2) put into furnace chamber after the raw material moulding, slowly be warming up to 120 ℃, be incubated 60 minutes, let physics moisture evaporation in the raw material;
When (3) being warming up to 850 ℃ again, be incubated 25 minutes, mineral are sloughed crystal water;
(4) employing adds 2%~6% tensio-active agent, soaks 15~30 minutes, continues to be warming up to 1170 ℃~1200 ℃ again, is incubated 25~35 minutes, stops heating, obtains sintered compact, naturally cools to normal temperature;
(5) again with its sintered compact through pulverize, sieving obtains 85~100 purpose particulate matters.
Described adhesion agent is one or both in salt gypsum, desulfurated plaster, water glass, the attapulgite.
Described tensio-active agent is one or both in sodium laurylsulfate, dioctyl sodium sulfosuccinate, glyceryl monostearate, heavy alkylbenzene sulfonic acid sodium, the high fatty alcohol sulfuric ester.
The application method of this composite sulfur removal material is: will obtain 85~100 purpose particulate matters is 1 ‰~5 ‰ to join in the waste water that sulphur concentration is 2mg/L~25mg/L by mass ratio; Behind stirring reaction 15~30min; Staticly settle; Solid-liquid separation, the supernatant discharging, sulphur concentration can be lower than 0.1mg/L in the water outlet.
Instance 1
By the total mass per-cent that accounts for composite sulfur removal material; The 95 order particulate matters that flyash 78%, furnace bottom slag 12%, salt gypsum 7%, dioctyl sodium sulfosuccinate 3% are prepared from are 5 ‰ to join in the waste water that sulphur concentration is 20mg/L by mass ratio; Behind the stirring reaction 15min, staticly settle solid-liquid separation; The supernatant discharging, water outlet does not detect sulphur.
Instance 2
By the total mass per-cent that accounts for composite sulfur removal material; The 90 order particulate matters that flyash 76%, cinder 11%, desulfurated plaster 3%, attapulgite 3%, high fatty alcohol sulfuric ester 7% are prepared from are 4 ‰ to join in the waste water that sulphur concentration is 17mg/L by mass ratio; Behind the stirring reaction 18min, staticly settle solid-liquid separation; The supernatant discharging, the water outlet sulphur concentration is 0.08mg/L.
Instance 3
By the total mass per-cent that accounts for composite sulfur removal material; The 87 order particulate matters that flyash 81%, furnace bottom slag 10%, water glass 4%, glyceryl monostearate 5% are prepared from are 3 ‰ to join in the waste water that sulphur concentration is 10 mg/L by mass ratio; Behind the stirring reaction 20min, staticly settle solid-liquid separation; The supernatant discharging, sulphur concentration is 0.05mg/L in the water outlet.
Instance 4
By the total mass per-cent that accounts for composite sulfur removal material; The 85 order particulate matters that flyash 77%, furnace bottom slag 8%, attapulgite 6%, dioctyl sodium sulfosuccinate 4%, heavy alkylbenzene sulfonic acid sodium 5% are prepared from are 1 ‰ to join in the waste water that sulphur concentration is 5 mg/L by mass ratio; Behind the stirring reaction 25min, staticly settle solid-liquid separation; The supernatant discharging, water outlet does not detect sulphur.
Claims (3)
1. industrial residue based composite sulfur removal material and application method thereof is characterized in that the preparation process of sweetening material is:
(1) getting mass ratio respectively is that 75%~85% flyash, 10%~20% furnace bottom slag, 3%~13% adhesion agent are ground into material;
(2) put into furnace chamber after the raw material moulding, slowly be warming up to 120 ℃, be incubated 60 minutes, let physics moisture evaporation in the raw material;
When (3) being warming up to 850 ℃ again, be incubated 25 minutes, mineral are sloughed crystal water;
(4) employing adds 2%~6% organic surface active agent, soaks 15~30 minutes, continues to be warming up to 1170 ℃~1200 ℃ again, is incubated 25~35 minutes, stops heating, obtains sintered compact, naturally cools to normal temperature;
(5) again with its sintered compact through pulverize, sieving obtains 85~100 purpose particulate matters.
2. a kind of industrial residue based composite sulfur removal material according to claim 1 and application method thereof is characterized in that: described adhesion agent is one or both in salt gypsum, desulfurated plaster, water glass, the attapulgite.
3. a kind of industrial residue based composite sulfur removal material according to claim 1 and application method thereof is characterized in that: described organic surface active agent is one or both in sodium laurylsulfate, dioctyl sodium sulfosuccinate, glyceryl monostearate, heavy alkylbenzene sulfonic acid sodium, the high fatty alcohol sulfuric ester.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102976460A (en) * | 2012-12-11 | 2013-03-20 | 常州大学 | Boiler waste slag-based composite dephosphorizing material and application method thereof |
CN104692678A (en) * | 2015-03-18 | 2015-06-10 | 高彬 | Composite desulphurization material for iron-mine waste residues and preparation method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101172687A (en) * | 2007-10-30 | 2008-05-07 | 东南大学 | Industrial residue based compound dephosphorization material |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101172687A (en) * | 2007-10-30 | 2008-05-07 | 东南大学 | Industrial residue based compound dephosphorization material |
Non-Patent Citations (1)
Title |
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王全杰 等: "发泡剂的种类、特点及应用", 《皮革科学与工程》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102976460A (en) * | 2012-12-11 | 2013-03-20 | 常州大学 | Boiler waste slag-based composite dephosphorizing material and application method thereof |
CN104692678A (en) * | 2015-03-18 | 2015-06-10 | 高彬 | Composite desulphurization material for iron-mine waste residues and preparation method thereof |
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Application publication date: 20120523 |