CN1065215C - Method for treating circulating water by mineral type flocculant - Google Patents
Method for treating circulating water by mineral type flocculant Download PDFInfo
- Publication number
- CN1065215C CN1065215C CN 96117146 CN96117146A CN1065215C CN 1065215 C CN1065215 C CN 1065215C CN 96117146 CN96117146 CN 96117146 CN 96117146 A CN96117146 A CN 96117146A CN 1065215 C CN1065215 C CN 1065215C
- Authority
- CN
- China
- Prior art keywords
- mineral
- water
- circulating water
- suspending agent
- floculating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 32
- 239000011707 mineral Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 10
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 6
- 150000003839 salts Chemical class 0.000 claims abstract description 6
- 230000002776 aggregation Effects 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 235000010755 mineral Nutrition 0.000 claims description 28
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 8
- 229910052749 magnesium Inorganic materials 0.000 claims description 8
- 239000001103 potassium chloride Substances 0.000 claims description 8
- 235000011164 potassium chloride Nutrition 0.000 claims description 8
- -1 carnallitite Substances 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- PYWHQROEPCGDKL-UHFFFAOYSA-N [Na].[V].[Mg] Chemical compound [Na].[V].[Mg] PYWHQROEPCGDKL-UHFFFAOYSA-N 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 238000004220 aggregation Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 239000000701 coagulant Substances 0.000 abstract 3
- 239000000375 suspending agent Substances 0.000 abstract 3
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000013072 incoming material Substances 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 description 14
- 230000016615 flocculation Effects 0.000 description 14
- 239000010866 blackwater Substances 0.000 description 9
- 239000012535 impurity Substances 0.000 description 4
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 238000010907 mechanical stirring Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a method for treating circulating water by using a mineral coagulant. Selecting slightly soluble or easily soluble high-valence metal ion salt as mineral type coagulant, and pulverizing the mineral into powder with the concentration of 0.1-0.2 kg/m3The amount of the suspending agent is added into clarified reused circulating water, and the dispersion state of the suspending agent and the like is changed by changing the water quality, namely the suspending agent is modified, so that suspended fine particles are in an agglomeration state. Compared with a chemical coagulant, the invention is beneficial to thoroughly clarifying and ensuring water quality; the suspension system in a dispersed state is better in economy and lower in relative cost; the system has stable operation, is not influenced by the fluctuation of the incoming material and the adding system, and has no secondary pollution.
Description
The present invention relates to a kind of method of utilizing natural mineral raw to make flocculation agent cycle of treatment water.More specifically be the method that a kind of mineral with slightly soluble or high volence metal ion salt soluble in water are made flocculation agent cycle of treatment water specifically.
At present, development and business-like water purification agent all are chemical preparationss.In principle, they are divided into two big classes: flocculation agent and flocculation agent.Flocculation agent is mainly inorganic salts, and their effect is by dissolved ions compression double electric layer in the water, makes the mutual coagulation of subparticle phase.Flocculation agent then is to make the grain group of having condensed flocculate bigger floc sedimentation and sedimentation rapidly by its macromolecular bridge linking effect.For the suspension system that is condensed state, the independent application of these two kinds of medicaments or cooperation all can reach obvious primary water effect.But, often because system's fluctuation of service or working cost are too high, make overall purifying water effect difference or inefficacy in the middle of the reality for the suspension system that is dispersion state.In addition, use the water purification agent of chemical preparations that secondary pollution is arranged, reagent consumption is very surprising, handles the appropriate litigation fees height of the suspension system that is dispersion state.
The purpose of this invention is to provide and a kind ofly can guarantee the suspension primary water, and running cost reduces the method with mineral floculating agent cycle of treatment water of non-secondary pollution greatly.For the suspension system that is dispersion state, clarifying effect is also very good.
Purpose of the present invention can realize in the following manner: a kind of method that is suitable for the mineral floculating agent cycle of treatment water of closed circuit primary water system, select high volence metal ion salt with slightly soluble or the easy molten characteristic flocculation agent as the mineral type for use, these class mineral are: gypsum (CaSO
42H
2O), carnallitite (KClMgCl
26H
2O), sylvite magnesium (KClMgSO
43H
2O) and white sodium magnesium vanadium (Na
2SO
4MgSO
44H
2O), the flocculation agent of mineral type is crushed to Powdered, then, pulverous mineral floculating agent with pulvis or solid water two-phase mixture, is joined in the multiplexing recirculated water of clarifying treatment, add-on is 0.1～0.2kg/m
3, for accelerate dissolution, available pumping or special mechanical stirring are carried out.
The present invention compared with prior art has following effect: the present invention has adopted raw mineral materials to make flocculation agent, reach the dispersion state that changes suspension system by changing water quality, it is the suspensoid modification, make the subparticle of suspension be state of aggregation, mineral floculating agent can replace general chemical classes flocculation agent fully like this, and reduces or without flocculation agent.The present invention and chemotype flocculation agent compare: 1. help thorough clarification, guarantee to clarify water quality; 2. more be dispersion state, suspend better, economy better, cost is lower relatively; 3. system is stable, is not subject to the influence of supplied materials and add-on system fluctuation; 4. low price, real estate, non-secondary pollution.
The invention will be further described with embodiment below:
Mineral floculating agent is taken from natural mineral, and these natural mineral have following characteristic: slightly soluble or processable, high volence metal ion salt; These class mineral are: gypsum, carnallitite, sylvite magnesium and white sodium magnesium vanadium.Can directly join after the pulverizing in the recirculated water of clarifying treatment, also powder can be dissolved earlier and afterwards join in the clarifying recirculated water, do not make the mineral floculating agent precipitation in order further to strengthen dissolving, available pumping or special mechanical stirring are delivered to the solution that adds mineral floculating agent in the recycle system.After mineral floculating agent joins suspensoid, at first dissolving and be ionic condition and exist in water, these ions have fundamentally changed the suspension water quality condition, and water hardness and salinity increase; PH value remains unchanged substantially, relies on high volence metal ion compressing grains surface electric double layer, and it is lost electrically, reduce the cohesion energy barrier, just become the cohesion of subparticle, this effect changes from dispersed the suspended dispersed system in fact to condensed state, i.e. the modification of suspended dispersed system.On macroscopic view, mineral floculating agent can replace general chemical classes flocculation agent, even reduces without flocculation agent, can reach same effect, and expense then reduces more than 80%.
Embodiment one: with gypsum (CaSO
42H
2O) be crushed to Powdered, with 0.15kg/m
3Join in the multiplexing recirculated water of clarifying treatment, because impurity exists and the influence of addition manner, dissolving back residue is roughly 15%.Before throwing in gypsum, the pH value of black water is 7.5.With pulverous terra alba with 0.15kg/m
3Join in the multiplexing recirculated water of clarifying treatment, be added in the round-robin black water with pumping, the water turbidity of the clarifying water that obtains at last is 6～12, and pH value remains unchanged substantially.With handle black water with aluminium chlorohydroxide and polyacrylamide and compare, reduce cost 80.22%.
Embodiment two: with carnallitite (KClMgCl
26H
2O) be crushed to Powdered, with 0.16kg/m
3Join in the multiplexing recirculated water of clarifying treatment, because impurity exists and the influence of addition manner, residue is big after the dissolving must be 10%.Before throwing in carnallitite, the pH value of black water is 7.6.With pulverous carnallitite with 0.16kg/m
3Join in the multiplexing recirculated water of clarifying treatment, strengthen dissolving with special mechanical stirring, then, the clarifying treatment water that adds carnallitite joined in the system go, the water turbidity that obtains clarifying water at last is 8～10, and pH value remains unchanged substantially, and handles black water with aluminium chlorohydroxide and polyacrylamide and compares, and reduces cost 81.50%.
Embodiment three: with sylvite magnesium (KClMgSO
43H
2O) be crushed to Powdered, with 0.15kg/m
3Join in the multiplexing recirculated water of clarifying treatment, because impurity exists and the influence of addition manner, residue is big after the dissolving must be 10%, and before the throwing sylvite magnesium, the pH value of black water is 7.5.With powdered sylvite magnesium with 0.15kg/m
3Join in the multiplexing recirculated water of clarifying treatment, the water turbidity that obtains clarifying water after the operation is 10～15, and pH value remains unchanged substantially, and handles black water with aluminium chlorohydroxide and polyacrylamide and compares and reduce cost 80%.
Embodiment four: with white sodium magnesium vanadium (Na
2SO
4MgSO
44H
2O) be crushed to Powdered, with 0.16kg/m
3Join in the multiplexing recirculated water of clarifying treatment, because impurity exists and the influence of addition manner, residue is big after the dissolving must be 10%, and before the throwing sylvite magnesium, the pH value of black water is 7.5.With powdered sylvite magnesium with 0.16kg/m
3Join in the multiplexing recirculated water of clarifying treatment, the water turbidity that obtains clarifying water after the operation is 9～13, and pH value remains unchanged substantially, and handles black water with aluminium chlorohydroxide and polyacrylamide and compares and reduce cost 80%.
Claims (4)
1. method with mineral floculating agent cycle of treatment water, it is characterized in that: the Powdered mineral that will have the high volence metal ion salt of slightly soluble or easy molten characteristic, join in the multiplexing recirculated water with certain amount, the system that sends into then changes water quality and reaches the suspensoid modification, make the subparticle of suspension be state of aggregation, described mineral are gypsum, carnallitite, sylvite magnesium or white sodium magnesium vanadium.
2. a kind of method with mineral floculating agent cycle of treatment water according to claim 1, it is characterized in that: the mineral quantity that adds multiplexing recirculated water is 0.1～0.2kg/m
3
3. a kind of method with mineral floculating agent cycle of treatment water according to claim 1 and 2 is characterized in that: describedly be crushed to pulverous mineral and directly add with pulvis.
4. a kind of method with mineral floculating agent cycle of treatment water according to claim 1 is characterized in that: describedly be crushed to pulverous mineral and add with the solid water two-phase mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96117146 CN1065215C (en) | 1996-10-22 | 1996-10-22 | Method for treating circulating water by mineral type flocculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96117146 CN1065215C (en) | 1996-10-22 | 1996-10-22 | Method for treating circulating water by mineral type flocculant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1180667A CN1180667A (en) | 1998-05-06 |
| CN1065215C true CN1065215C (en) | 2001-05-02 |
Family
ID=5124081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96117146 Expired - Fee Related CN1065215C (en) | 1996-10-22 | 1996-10-22 | Method for treating circulating water by mineral type flocculant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1065215C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429156C (en) * | 2006-01-20 | 2008-10-29 | 中国矿业大学 | Highly efficient clarification method of circulating black water |
| CN104229963B (en) * | 2014-09-16 | 2016-05-18 | 中国矿业大学(北京) | A kind of flocculating agent of black water clarification adds control method |
| CN107100625B (en) * | 2017-05-03 | 2019-08-13 | 中国矿业大学 | Overlying strata water filling filling, which reduces, leads high water retaining mining method |
-
1996
- 1996-10-22 CN CN 96117146 patent/CN1065215C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180667A (en) | 1998-05-06 |
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