CN1621369A - Nano highly effective amendment for sludge dehydration - Google Patents
Nano highly effective amendment for sludge dehydration Download PDFInfo
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- CN1621369A CN1621369A CN 200310110551 CN200310110551A CN1621369A CN 1621369 A CN1621369 A CN 1621369A CN 200310110551 CN200310110551 CN 200310110551 CN 200310110551 A CN200310110551 A CN 200310110551A CN 1621369 A CN1621369 A CN 1621369A
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Abstract
The present invention discloses one kind of Z's nanometer efficient sewage dewatering amendment. The Z's nanometer efficient sewage dewatering amendment consists of inorganic high molecular dewatering amendment 80-98 weight portions, organic high molecular dewatering amendment 1-19 weight portions, hydroxymethyl cellulose sodium 0.5-6 weight portions and nanometer material 0.1-3.5 weight portions. The present invention has powerful neutralizing capacity, bridging capacity and permeating capacity and thus has high sewage dewatering effect.
Description
Technical field
The present invention relates to a kind of ZShi efficient nano sludge dehydration conditioner.
Background technology
Ignore easily and be that very crucial processing unit is a sludge treatment for one in the sewage disposal, the key of sludge treatment is sludge dewatering, moisture existence form in the mud roughly has four kinds, 1, is present in interstitial water between mud granule, be called interstitial water or free-water, account for 65～85% of sludge water content; 2, be present in the kapillary between mud granule, claim capillary water, account for about 15～20% of sludge water content; 3, be adsorbed on a part of water on the mud granule, claim planar water,, have stronger surface adsorption power because mud granule is little; 4, combination water is the chemically-bonded water of granule interior, the particulate internal structure that only changes could with combined moisture from.Planar water and combination water generally account for about 10% of mud Total Water, because moisture percentage in sewage sludge is all more than 98% in the sewage disposal, so the general mud of consideration earlier concentrates, this is to reduce moisture percentage in sewage sludge, reduce the effective ways of mud subsequent disposal expense and difficulty, when moisture percentage in sewage sludge when 99.5% is concentrated to 98.5%, it is original 1/3 that volume can narrow down to, and was concentrated to 95% o'clock, sludge volume only is original 1/10, the spissated dehydration of mud to as if account for 70% interstitial water of sludge water content, solid matter mainly is a colloidal particle in the mud, and is very strong with the avidity of water, if do not do suitable pre-treatment, make the mud particle change physico-chemical property, destroy the mud colloidal structure, reduce the avidity of itself and water, thereby improve dewatering, adopt the dosing method owing to economical and practical, simple and convenient at present, and by domestic and international common employing.
The principle of dehydrating and conditioning agent is exactly to make the inorganic or organic medicament that has electric charge at mud colloid surface react with, in and the mud granule electric charge, water is separated from mud granule, make mud granule condense into big particle flco simultaneously, the quality of conditioning effect and dosing kind and quality, added amount of chemical and environmental factors etc. has substantial connection.Sludge dehydration conditioner is divided into two classes at present, and a class is inorganic medicament, comprises iron system, aluminium system, and the inorganic medicament of polymer, another kind of is the organic polymer medicament, and cationic, anionic and non-ionic type are arranged, based on polyacrylamide, and the single medicament of most employing.
Summary of the invention
The ZShi efficient nano sludge dehydration conditioner that the purpose of this invention is to provide a kind of efficient compound increases neutralising capacity and bridging ability and seepage force, makes the sludge dewatering pretreating effect good, and speed is faster, dosing still less, price is the most flat, water ratio is lower.
The present invention combines the advantage separately of inorganic polymer amendment and organic polymer amendment, (temperature, humidity) under certain condition, mix and stir the compound compound ZShi efficient nano sludge dehydration conditioner of producing by comminution by gas stream, and (temperature, pressure, humidity) is added nano material and is carried out the materialization modification and produce under given conditions, is widely used in sludge dewatering.
Its compound weight is counted:
Inorganic polymer dehydrating and conditioning agent 80～98
Organic polymer dehydrating and conditioning agent 1～19
Hydroxyl methylcellulose sodium (Na CMC) 0.5～6
Nano material (TiO
2, ZnO, SiO
2) 0.1～3.5
Its preferable weight is counted:
Inorganic polymer dehydrating and conditioning agent 90～95
Organic polymer dehydrating and conditioning agent 2.5～4.5
Hydroxyl methylcellulose sodium (Na CMC) 2～4
Nano material (TiO
2, ZnO, SiO
2) 0.5～1.5
Its optimum weight is counted:
Inorganic polymer dehydrating and conditioning agent 92
Organic polymer dehydrating and conditioning agent 15
Hydroxyl methylcellulose sodium (Na CMC) 2
Nano material (TiO
2, ZnO, SiO
2) 1
ZShi efficient nano sludge dehydration conditioner according to aforementioned proportion is produced demonstrates following characteristics:
1, complementarity: brought into play the big advantage of inorganic conditioner flco intensity after compound, overcome the shortcoming that dosage is big, flco is little, brought into play the advantage that organic amendment dosage is little, flco is big again, overcome the shortcoming that flco intensity is low, price is expensive, make its conditioning performance better, cost is low.
2, synergy: composite amendment is when having complementarity, obvious synergistic effect is arranged, nurse one's health the stack that modified effect is two kinds of medicaments, dehydrating effect obviously is better than single dehydrating and conditioning agent, and consumption has only about 1/2 (method of weighted mean) of single amendment, handle reagent cost and reduce by 50%, dehydration rate improves about 10%.
3, owing to compound amendment, particularly after nano material is added modification, so raising is to the conditioning and the modified performance of mud, the avidity of colloid particulate and water is weakened greatly, mud particle physical and chemical performance is obviously improved, destroyed the colloidal structure of mud, make the easier dehydration of mud.
4, because the nano material that adds has specific surface area huge, surface energy increases, and surface atom is many, and is unsettled strong many, so very high chemically reactive is arranged itself, special very strong adsorptive power is the fabulous auxiliary agent of sludge dewatering, receives simultaneously and expects the modifying function of material to traditional amendment, thereby further improved the sludge dewatering effect, economize on dose, save drug cost, improve dewatering efficiency.
5, add the high diffusibility of nano material, high penetrating power is diffused in the water-containing sludge medicament of the present invention very soon, and mixes, and speed is fast, nurse one's health modified evenly, dehydrating effect is good.
6, the volume effect of nano material, quantum size effect, chemistry and catalytic, macroscopical tunnel effects etc. have the conditioning performance of urging in matrix material to improve to its influence.
In sum, the present invention is that a kind of neutralising capacity and bridging ability and seepage force are strong, makes the sludge dewatering pretreating effect good, and speed is faster, dosing still less, price is the most flat, the ZShi efficient nano sludge dehydration conditioner of the efficient compound that water ratio is lower.
Embodiment
Embodiment 1:
80 parts of polymerize aluminum chlorides
11 parts of polyacrylamides
6 parts in hydroxyl methylcellulose sodium (NaCMC)
SiO
23 parts
The amendment treatment effect of proportioning production is good according to this, and dehydrating effect is good, and is with strong complementarity, and the synergy effect is big, but too expensive, and processing cost is too high.
Embodiment 2:
88 parts of polyaluminium sulfates
4 parts of polyacrylamides
6 parts in hydroxyl methylcellulose sodium (NaCMC)
TiO
22 parts
The granule strength of the amendment processing mud of proportioning production is big according to this, and synergy is good, and treatment effect is good, but complementarity is poor slightly, too expensive, the processing cost height.
Embodiment 3:
92 parts in polymer phosphate aluminium
5 parts of polyacrylamides
2 parts in hydroxyl methylcellulose sodium (NaCMC)
1 part of ZnO
The amendment complementarity of proportioning production and synergy and seepage force are good according to this, and mud granule is big, the intensity height, and treatment effect is good, and price is low, and processing cost is low.
Embodiment 4:
95 parts of bodied ferric sulfates
1.5 parts of polyacrylamides
0.5 part in hydroxyl methylcellulose sodium (NaCMC)
SiO
23 parts
The amendment seepage force of proportioning production is strong according to this, and price is flat, but complementarity and synergy are poor, the processing efficiency weak effect.
Embodiment 5:
98 parts of poly-ferric chlorides
1.4 parts of polyacrylamides
0.5 part in hydroxyl methylcellulose sodium (NaCMC)
TiO
20.1 part
The amendment of proportioning production is complementary general according to this, and price is flat, but synergy and seepage force are poor, and treatment effect is poorer.
Claims (3)
1, a kind of ZShi efficient nano sludge dehydration conditioner, its compound weight is counted:
80～98 parts of inorganic polymer dehydrating and conditioning agent,
1～19 part of organic polymer dehydrating and conditioning agent,
0.5～6 part in hydroxyl methylcellulose sodium,
0.1～3.5 part of nano material.
2, a kind of ZShi efficient nano sludge dehydration conditioner according to claim 1, its preferable weight is counted:
90～95 parts of inorganic polymer dehydrating and conditioning agent,
2.5～4.5 parts of organic polymer dehydrating and conditioning agent,
2～4 parts in hydroxyl methylcellulose sodium,
0.5～1.5 part of nano material.
3, a kind of ZShi efficient nano sludge dehydration conditioner according to claim 1 and 2, its optimum weight is counted:
92 parts of inorganic polymer dehydrating and conditioning agent,
15 parts of organic polymer dehydrating and conditioning agent,
2 parts in hydroxyl methylcellulose sodium,
1 part of nano material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310110551 CN1621369A (en) | 2003-11-24 | 2003-11-24 | Nano highly effective amendment for sludge dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310110551 CN1621369A (en) | 2003-11-24 | 2003-11-24 | Nano highly effective amendment for sludge dehydration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1621369A true CN1621369A (en) | 2005-06-01 |
Family
ID=34759156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310110551 Pending CN1621369A (en) | 2003-11-24 | 2003-11-24 | Nano highly effective amendment for sludge dehydration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1621369A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389874C (en) * | 2006-07-14 | 2008-05-28 | 谷育英 | Catalyst and its preparing process and usage method and use |
| CN103466915A (en) * | 2013-09-06 | 2013-12-25 | 长沙水石环境科技有限公司 | Composition for deep dehydration of municipal sludge and dehydration method thereof |
| CN110104936A (en) * | 2018-01-30 | 2019-08-09 | 辽宁德智环保技术有限公司 | The method of nano polyaluminium chloride processing fermented sludge |
-
2003
- 2003-11-24 CN CN 200310110551 patent/CN1621369A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389874C (en) * | 2006-07-14 | 2008-05-28 | 谷育英 | Catalyst and its preparing process and usage method and use |
| CN103466915A (en) * | 2013-09-06 | 2013-12-25 | 长沙水石环境科技有限公司 | Composition for deep dehydration of municipal sludge and dehydration method thereof |
| CN103466915B (en) * | 2013-09-06 | 2016-01-20 | 范力仁 | For composition and the dewatering of municipal sludge deep dehydration |
| CN110104936A (en) * | 2018-01-30 | 2019-08-09 | 辽宁德智环保技术有限公司 | The method of nano polyaluminium chloride processing fermented sludge |
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