CN106629971A - Iron-based nanometer sewage treatment agent and use method thereof - Google Patents
Iron-based nanometer sewage treatment agent and use method thereof Download PDFInfo
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- CN106629971A CN106629971A CN201611108779.4A CN201611108779A CN106629971A CN 106629971 A CN106629971 A CN 106629971A CN 201611108779 A CN201611108779 A CN 201611108779A CN 106629971 A CN106629971 A CN 106629971A
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- 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
-
- 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
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The invention discloses an iron-based nanometer sewage treatment agent. The iron-based nanometer sewage treatment agent comprises the following raw materials in parts by weight: 70 to 80 parts of surface modified attapulgite clay, 25 to 40 parts of organic silicone rubber waste, 5 to 10 parts of an iron-based nano-composite agent, 2 to 6 parts of activated carbon particles, 1 to 3 parts of cellulosic ethanol, 1 to 3 parts of a regenerating composite agent and 5 to 8 parts of lithopone, wherein the iron-based nano-composite agent comprises the following raw materials in parts by weight: 5 to 10 parts of nanometer Fe3O4, 15 to 20 parts of nanometer Fe(OH)3 and 1 to 3 parts of polyethylene glycol. The surface modified attapulgite clay and the iron-based nano-composite agent combine with the activated carbon particles to perform effective treatment on sewage; due to addition of the organic silicone rubber waste, the hydrophobic property is promoted, the carrier processing convenience is improved, and packaging and transportation are facilitated; and the cellulosic ethanol and the lithopone can effectively filter the sewage, can promote impurities and harmful substances, particularly phosphorus, in the sewage to be adsorbed by the surface modified attapulgite clay, the iron-based nano-composite agent and the activated carbon particles, can be recycled and has high utilization efficiency.
Description
Technical field
The present invention relates to there is technical field of sewage, specifically a kind of iron-based nanometer sewage-treating agent and its user
Method.
Background technology
Under the pressure of the severe situation of body eutrophication, in recent years national governments and the common people are required more municipal sewage treatment
Improve, the index in sewage drainage standard about nutrient salts is also increasingly stricter, in order to reach discharge standard, more and more
Municipal sewage plant all introduces the sewage treatment process with denitrogenation dephosphorizing function, the organic contamination in clarifying urban sewage
While thing, the nitrogen and phosphorus content in water outlet is significantly cut down.But at present due to a variety of causes, many Sewage Plant biological carbon and phosphorous removal works
Skill effect is not reaching to be expected, and it is more difficult up to standard that water outlet phosphorus relies only on biological phosphate-eliminating.Absorption method dephosphorization is using some porous or big
The technology of phosphorus removal from wastewater that the solid matter of specific surface area is realized to the affinity of phosphate anion in water.Phosphorus passes through adsorbent
The physical absorption that shows, ion exchange show coprecipitation process, realize separation of the phosphorus from sewage, and can further by solution
Inhale to process and reclaim phosphor resource.Efficient adsorbent is found in it is critical only that for absorption method dephosphorization.
At present, it is major control for sewage disposal major part in town village is also only limitted to COD, to the basic nothing of the indexs such as nitrogen, phosphorus
Method meets emission request, is not only because technology management level restriction, has and is significantly limited by conventional phosphorus ligands behaviour
Make loaded down with trivial details, operating cost is high, sludge yield is big etc., this project is biochemical for Jing exactly by searching out a kind of efficient material
Low phosphorous tail water after process carries out advanced treating, and reaction speed is fast, and operation is simple, and enriched product is stopped for high phosphorous liquid,
Can recycle, the advantage of secondary pollution will not be produced to environment, and can be made with equipmentization, be adapted to large, medium and small various
Scale, can slitless connection with various biochemical treatment systems.
The content of the invention
It is an object of the invention to provide a kind of iron-based nanometer sewage-treating agent and its using method for sewage disposal.
For achieving the above object, the present invention provides following technical scheme：
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：The modified attapulgite clay 70-80 in surface
Part, organic silicon rubber waste material 25-40 parts, nano combined dose of 5-10 part of iron-based, activated carbon granule 2-6 parts, cellulose ethanol 1-3 parts,
Regeneration complexing agent 1-3 parts and lithopone 5-8 parts；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer Fe3O4 5-
10 parts, nanometer Fe (OH)315-20 parts and polyethylene glycol 1-3 parts.
Further, a kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：The modified concave convex rod in surface glues
65 parts of soil, 30 parts of organic silicon rubber waste material, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, 2 parts of cellulose ethanol, regeneration are multiple
6 parts of 2 parts of mixture and lithopone；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer Fe3O46-8 parts, nanometer Fe
(OH)317-18 parts, polyethylene glycol 1-2 parts.
Further, a kind of iron-based nanometer sewage-treating agent, nano combined dose of raw material according to weight portion of the iron-based be：
Nanometer Fe3O47 parts, nanometer Fe (OH)318 parts, 2 parts of polyethylene glycol.
Further, a kind of iron-based nanometer sewage-treating agent, the modified attapulgite clay in the surface, be relative to
100 parts poly- surfactant 20-30 parts of attapulgite clay surface addition dendroid quaternary ammonium salt four, nano manganese oxide 5-10 parts,
The addition of potassium ferrate is 10-15 parts.
Further, a kind of iron-based nanometer sewage-treating agent, the regeneration complexing agent includes zeolite 1.5-2.5 parts, highly basic
1-3 parts and sodium chloride 3-5 parts.
Further, a kind of iron-based nanometer sewage-treating agent, it is big that the organic silicon rubber waste material is ground into 0.3-0.5mm
Little particle.
Further, a kind of iron-based nanometer sewage-treating agent, the highly basic is NaOH and/or potassium hydroxide.
The using method of above-mentioned any one iron-based nanometer sewage-treating agent, comprises the steps：
(1) sewage is flowed into shallow sand device from two grades of sinking pool effluent mouths of biochemical treatment system, and is added in sand filter
Above-mentioned sewage-treating agent, removes non-solubility pollutant in eliminating water；
(2) by the filtrate in step (1), by the adsorption tower for being filled with above-mentioned sewage-treating agent, it is difficult in biochemical tail water to make
Effectively being adsorbed with biodegradable dissolved organic matter and phosphorus, and increase aerator at adsorption tower bottom carries out aeration, enters to inhale
Attached, the COD and total phosphorus concentration in water outlet is greatly reduced；
(3) stop absorption when absorption reaches breakthrough point, add above-mentioned regeneration complexing agent, it is nano combined to above-mentioned iron-based
Agent carries out desorption and regeneration, for recycling；
(4) Jing after acid-base value neutralization, concentration, being dried, sealing preserve is used for the high concentration desorption liquid for obtaining step (3)
Use during sewage disposal next time.
Further, the using method of described iron-based nanometer sewage-treating agent, it is described to be clean in the step (1)
Filtering velocity of the water source in sand filter is 6-10m/h；In step (4) the acid-base value neutralization operation, HNO is added3It is neutralized, controls
PH value processed is between 6.8-7.5.
Compared with prior art, the invention has the beneficial effects as follows：
Iron-based nanometer sewage-treating agent of the present invention, the modified attapulgite clay in the surface of addition, nano combined dose of knot of iron-based
Closing activated carbon granule can effectively be processed sewage；And the addition of organic silicon rubber waste material promotes hydrophobic performance, carries
The convenience of high carrier processing, packed and transported is convenient to；Cellulose ethanol, lithopone can effective filter sewage, promote dirty
The impurities in water and harmful substance attapulgite clay that especially phosphorus can be surface-modified, nano combined dose of iron-based and activated carbon granule
Absorption, regenerating complexing agent can promote the regeneration of the modified attapulgite clay in surface and nano combined dose of iron-based, using effect
Rate is high.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Embodiment 1
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：65 parts modified of attapulgite clay of surface, have
30 parts of machine waste silicone rubber, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, 2 parts of cellulose ethanol, regeneration 2 parts of complexing agent and
6 parts of lithopone；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer Fe3O46 parts, nanometer Fe (OH)317 parts,
1 part of polyethylene glycol.
Using method, step is as follows：
(1) sewage is flowed into shallow sand device from two grades of sinking pool effluent mouths of biochemical treatment system, and is added in sand filter
Above-mentioned sewage-treating agent, removes non-solubility pollutant in eliminating water；
(2) by the filtrate in step (1), by the adsorption tower for being filled with above-mentioned sewage-treating agent, it is difficult in biochemical tail water to make
Effectively being adsorbed with biodegradable dissolved organic matter and phosphorus, and increase aerator at adsorption tower bottom carries out aeration, enters to inhale
Attached, the COD and total phosphorus concentration in water outlet is greatly reduced；
(3) stop absorption when absorption reaches breakthrough point, add above-mentioned regeneration complexing agent, it is nano combined to above-mentioned iron-based
Agent carries out desorption and regeneration, for recycling；
(4) Jing after acid-base value neutralization, concentration, being dried, sealing preserve is used for the high concentration desorption liquid for obtaining step (3)
Use during sewage disposal next time.
Fe3O4、Fe(OH)3With environmental sound, distribution is extensive, specific surface area is big the characteristics of, and surface live
The advantages of property is high.So that nanometer iron-based material produces the macroscopic propertieies such as electricity, magnetic, light and chemistry that block possesses, so as to have very
Good adsorptivity, unique advantage makes iron-based nano material have in the governance process of environmental contaminants well using front
Scape.The thinking of dephosphorization in traditional wastewater process and sewage is changed, material of the present invention is readily available, and does not produce chemical sludge, right
Environment will not produce secondary pollution, the concentrate that saturation regeneration is produced after neutralization can with recycling, after industry is formed,
Easily can match with current all kinds of sewage disposal systems.After marketing, whole aquatic ecosystem all can be produced
The very big contribution of industry.
The present embodiment product dephosphorization efficiency is 94.5%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 1.5%, will produce
Product are placed and not sunk within one week in water, illustrate that hydrophobic performance is fine.
Embodiment 2
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：65 parts modified of attapulgite clay of surface, have
30 parts of machine waste silicone rubber, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, 2 parts of cellulose ethanol, regeneration 2 parts of complexing agent and
6 parts of lithopone；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer Fe3O48 parts, nanometer Fe (OH)317 parts,
1 part of polyethylene glycol.
Using method is with embodiment 1.
The present embodiment product dephosphorization efficiency is 93.8%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 1.2%, will produce
Product are placed and not sunk within one week in water, illustrate that hydrophobic performance is fine.
Embodiment 3
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：65 parts modified of attapulgite clay of surface, have
30 parts of machine waste silicone rubber, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, 2 parts of cellulose ethanol, regeneration 2 parts of complexing agent and
6 parts of lithopone；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer Fe3O47 parts, nanometer Fe (OH)318 parts,
2 parts of polyethylene glycol.
Using method is with embodiment 1.
The present embodiment product dephosphorization efficiency is 95.2%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 1.4%, will produce
Product are placed and not sunk within one week in water, illustrate that hydrophobic performance is fine.
Embodiment 4
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：65 parts modified of attapulgite clay of surface, have
30 parts of machine waste silicone rubber, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, 2 parts of cellulose ethanol, regeneration 2 parts of complexing agent and
6 parts of lithopone；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer Fe3O47 parts, nanometer Fe (OH)318 parts,
2 parts of polyethylene glycol.The modified attapulgite clay in the surface, is in the attapulgite clay surface addition branch relative to 100 parts
The poly- surfactant 20-30 parts of shape quaternary ammonium salt four, nano manganese oxide 5-10 parts, the addition of potassium ferrate are 10-15 parts.
Using method is with embodiment 1.
The present embodiment product dephosphorization efficiency is 96.8%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 1.3%, will produce
Product are placed and not sunk within one week in water, illustrate that hydrophobic performance is fine.
Embodiment 5
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：65 parts modified of attapulgite clay of surface, have
30 parts of machine waste silicone rubber, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, 2 parts of cellulose ethanol, regeneration 2 parts of complexing agent and
6 parts of lithopone；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer Fe3O47 parts, nanometer Fe (OH)318 parts,
2 parts of polyethylene glycol.The regeneration complexing agent includes zeolite 1.5-2.5 parts, highly basic 1-3 parts and sodium chloride 3-5 parts.
Using method is with embodiment 1.
The present embodiment product dephosphorization efficiency is 98.1%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 1.2%, will produce
Product are placed and not sunk within one week in water, illustrate that hydrophobic performance is fine.
Comparative example 1
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion：65 parts of attapulgite clay, organic silicon rubber give up
6 parts of 30 parts of material, 2 parts of cellulose ethanol, 2 parts of complexing agent of regeneration and lithopone.
Using method is with embodiment 1.
The present embodiment product dephosphorization efficiency is 70.5%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 5.4%, will produce
Product are placed in water has faint sinking in one week, illustrates that hydrophobic performance is normal.
Comparative example 2
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion:65 parts of attapulgite clay, organic silicon rubber give up
6 parts of 30 parts of material, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, 2 parts of cellulose ethanol and lithopone；The iron-based nanometer is answered
Mixture is according to the raw material of weight portion：Nanometer Fe3O47 parts, nanometer Fe (OH)318 parts, 2 parts of polyethylene glycol.
Using method is with embodiment 1.
The present embodiment product dephosphorization efficiency is 78.6%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 3.2%, will produce
Product are placed in water has faint sinking in one week, illustrates that hydrophobic performance is normal.
Comparative example 3
A kind of iron-based nanometer sewage-treating agent, be according to the raw material of weight portion:65 parts of attapulgite clay, activated carbon granule 5
6 parts of part, 2 parts of complexing agent of regeneration and lithopone；The regeneration complexing agent includes zeolite 1.5-2.5 parts, highly basic 1-3 parts and sodium chloride
3-5 parts.
Using method is with embodiment 1.
The present embodiment product dephosphorization efficiency is 81.5%；300 DEG C of calcinations 30 minutes in Muffle furnace, weightless 3.8%, will produce
Product are placed in water has faint sinking in one week, illustrates that hydrophobic performance is normal.
Application examples
The sewage-treating agent that embodiment and comparative example are obtained is with same components with the method for embodiment 1 to containing severe phosphorus
The sewage of pollution is processed.Water body test after carrying out sewage disposal behind three days and one week respectively；Its evaluation result such as table 1
With shown in table 2.
The sewage purification situation of table 1
As it can be seen from table 1 process of the embodiments of the invention to sewage is substantially better than comparative example, and the water after processing
Body meets relevant emission standards.
The dephosphorization situation of table 2
As shown in Table 2, process of the embodiments of the invention to phosphor in sewage is substantially better than comparative example, and the water after processing
Phosphorus content in body meets related request.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can be with the premise of without departing from this patent objective
Make a variety of changes.
Claims (9)
1. a kind of iron-based nanometer sewage-treating agent, it is characterised in that the raw material according to weight portion is：The modified concave convex rod in surface glues
Native 70-80 parts, organic silicon rubber waste material 25-40 parts, nano combined dose of 5-10 part of iron-based, activated carbon granule 2-6 parts, cellulose ethanol
1-3 parts, regeneration complexing agent 1-3 parts and lithopone 5-8 parts；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer
Fe3O45-10 parts, nanometer Fe (OH)315-20 parts and polyethylene glycol 1-3 parts.
2. iron-based nanometer sewage-treating agent according to claim 1, it is characterised in that the raw material according to weight portion is：Table
65 parts modified of attapulgite clay of face, 30 parts of organic silicon rubber waste material, nano combined dose 8 parts of iron-based, 5 parts of activated carbon granule, fibre
6 parts of 2 parts of ethanol of dimension, 2 parts of complexing agent of regeneration and lithopone；Nano combined dose of raw material according to weight portion of the iron-based be：Nanometer
Fe3O46-8 parts, nanometer Fe (OH)317-18 parts, polyethylene glycol 1-2 parts.
3. iron-based nanometer sewage-treating agent according to claim 1, it is characterised in that nano combined dose of the iron-based according to
The raw material of weight portion is：Nanometer Fe3O47 parts, nanometer Fe (OH)318 parts, 2 parts of polyethylene glycol.
4. iron-based nanometer sewage-treating agent according to claim 1, it is characterised in that the modified concave convex rod in the surface glues
Soil, is to add the poly- surfactant 20-30 parts of dendroid quaternary ammonium salt four, nanometer on the attapulgite clay surface relative to 100 parts
Manganese oxide 5-10 parts, the addition of potassium ferrate are 10-15 parts.
5. iron-based nanometer sewage-treating agent according to claim 1, it is characterised in that the regeneration complexing agent includes zeolite
1.5-2.5 parts, highly basic 1-3 parts and sodium chloride 3-5 parts.
6. iron-based nanometer sewage-treating agent according to claim 1, it is characterised in that the organic silicon rubber waste material is by powder
It is broken into the particle of 0.3-0.5mm sizes.
7. iron-based nanometer sewage-treating agent according to claim 5, it is characterised in that the highly basic be NaOH and/
Or potassium hydroxide.
8. such as the using method of any one iron-based nanometer sewage-treating agent of claim 1 to 7, it is characterised in that：Including as follows
Step：
(1) sewage is flowed into shallow sand device from two grades of sinking pool effluent mouths of biochemical treatment system, and is added in sand filter above-mentioned
Sewage-treating agent, removes non-solubility pollutant in eliminating water；
(2) by the filtrate in step (1), by the adsorption tower for being filled with above-mentioned sewage-treating agent, make to be difficult to give birth in biochemical tail water
The dissolved organic matter and phosphorus of thing degraded is effectively adsorbed, and carries out aeration in adsorption tower bottom increase aerator, after entering absorption,
COD and total phosphorus concentration in water outlet is greatly reduced；
(3) stop absorption when absorption reaches breakthrough point, add above-mentioned regeneration complexing agent, nano combined dose is entered to above-mentioned iron-based
Row desorption and regeneration, for recycling；
(4) high concentration desorption liquid for obtaining step (3) Jing acid-base value neutralization, concentration, be dried after, sealing preserve, for next
Use during secondary sewage disposal.
9. the using method of iron-based nanometer sewage-treating agent according to claim 8, it is characterised in that
In the step (1), filtering velocity of the water source to be clean in sand filter is 6-10m/h；
In step (4) the acid-base value neutralization operation, HNO is added3It is neutralized, control ph is between 6.8-7.5.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111072114A (en) * | 2018-10-18 | 2020-04-28 | 南京化学工业园环保产业协同创新有限公司 | Nano circulating water treatment agent with biological activity |
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| CN103274484A (en) * | 2013-06-04 | 2013-09-04 | 章方军 | Sewage treatment agent, and preparation method and application thereof |
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