CN104310551A - Method for removing phosphorus in sewage - Google Patents
Method for removing phosphorus in sewage Download PDFInfo
- Publication number
- CN104310551A CN104310551A CN201410608472.5A CN201410608472A CN104310551A CN 104310551 A CN104310551 A CN 104310551A CN 201410608472 A CN201410608472 A CN 201410608472A CN 104310551 A CN104310551 A CN 104310551A
- Authority
- CN
- China
- Prior art keywords
- sewage
- polyacrylamide
- thickener
- add
- sludge
- 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.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 title abstract description 8
- 239000011574 phosphorus Substances 0.000 title abstract description 8
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 36
- 239000002562 thickening agent Substances 0.000 claims abstract description 9
- 239000010802 sludge Substances 0.000 claims abstract description 5
- 239000012065 filter cake Substances 0.000 claims abstract description 3
- 230000003068 static effect Effects 0.000 claims abstract description 3
- 238000004062 sedimentation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 2
- 244000144992 flock Species 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000004448 titration Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical group OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005612 synthetic inorganic polymer Polymers 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
Classifications
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular 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
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for removing phosphorus in sewage. The method comprises the following steps: feeding polyacrylamide into a dosing tank in accordance with a certain ratio, continuously pumping polyacrylamide into a static mixer all day long by a dosing pump to be fully mixed with sewage entering a sewage tank, then settling the sewage mixed with polyacrylamide after entering a thickener, pumping the settled sludge into a filter press by a sludge pump at the bottom of the thickener, returning the overflowed sewage into the thickener, processing the sludge with the filter press, and unloading filter cakes by manual operation, wherein the proportion of polyacrylamide added to per unit of sewage is 0.04-0.15%. The method for removing phosphorus in sewage can achieve the goals of minimum agent dosage and optimal phosphorus removal effect.
Description
Technical field
The present invention relates to a kind of method of sewage dephosphorization, particularly relate to that a kind of choice for use amount is minimum and the polyacrylamide of phosphor-removing effect the best is the method for Dephosphorization reagent, to reach the object removing phosphor in sewage.
Background technology
In modern industry is produced, because the material of the phosphorous acid group of a large amount of uses carries out chemical as raw material or auxiliary material produce reaction use, cause phosphorus content in follow-up sewage effluent to exceed standard, cause environmental pollution.Based on the consideration of environment protection, research is found and accurately can be controlled phosphorus content and to reduce the method for phosphorus content significant.Polyacrylamide (PAM) is the maximum synthetic inorganic polymer flocculant of application, and its molecular chain is very long, its amide group (--CONH
2) can affine with many materials, adsorb and form hydrogen bond, this just makes it can build bridge between the particle of absorption, and several even dozens of particle is linked together generation floc sedimentation, and accelerated particle sinks, and makes it become optimal flocculation agent.Containing tetrasodium pyrophosphate in sewage, if process below standard lines not in time, the severe contamination to environment can be caused.Existing treatment process is mainly and drops into polymerize aluminum chloride in sewage, but well can not play the effect of sedimentation phosphide as coagulant polymeric aluminium chloride, and treatment effect is undesirable.
Summary of the invention
The object of the present invention is to provide a kind of method of sewage dephosphorization, reach the object that dosing is minimum, phosphor-removing effect is best.
For achieving the above object, the technical solution used in the present invention is:
A kind of method of sewage dephosphorization, it is characterized in that: by a certain percentage polyacrylamide is put in grug feeding jar, within 24 hours, do not stop that polyacrylamide is squeezed into static mixer by dosing pump fully to mix with by the sewage entering sewage lagoon, the sewage being mixed with polyacrylamide afterwards enters in thickener and carries out sedimentation, pressure filter squeezed into by the sludge pump of mud after sedimentation bottom thickener, the sewage of overflow is back in thickener again, mud by pressure filter through manual operation by filter cake removal;
The ratio of polyacrylamide is added for (percentage amounts): 0.04-0.15 in unit sewage.
The ratio of polyacrylamide is added for (percentage amounts): 0.05-0.08 in preferred sewage.
Most preferably add the ratio of polyacrylamide in sewage for (percentage amounts): 0.064.
The invention has the beneficial effects as follows, adopt the inventive method, use less polyacrylamide for Dephosphorization reagent, phosphor-removing effect is desirable.
Embodiment
The present invention is further illustrated for the following examples.(being numbered 4 kinds of models polyacrylamide that is TX5105, TX4120, TX5360, XT5320 is No. 1, No. 2, No. 3, No. 4) embodiment one
Get No. 1 sample 0.0101g, it is 2.97 × 10 that water 350mL is configured to concentration
-5the solution of g/mL.Separately get the sewage of 1 bottle of 450mL.According to theoretical value respectively titration 1.6mL (producer's amount of providing) is provided, observing discovery does not have flocks to occur, continues to add polyacrylamide solution in sewage, in time adding 130mL for No. 1, there is flocks in corresponding sewage bottle, stop adding polyacrylamide solution; For clear and definite test effect, get 1 bottle of 500mL sewage, add No. 1 polyacrylamide solid in bottle, add 0.01g at every turn, shake up after adding, namely stop after there is precipitation.Experimental result shows, and occurs precipitation after adding 0.15g.
Embodiment two
Get No. 2 sample 0.0101g, it is 2.97 × 10 that water 350mL is configured to concentration
-5the solution of g/mL.Separately get the sewage of 1 bottle of 450mL.According to theoretical value respectively titration 1.6mL (producer's amount of providing) is provided, observing discovery does not have flocks to occur, continues to add polyacrylamide solution in sewage, in time adding 140mL for No. 2, there is flocks in corresponding sewage bottle, stop adding polyacrylamide solution; For clear and definite test effect, get 1 bottle of 500mL sewage, add No. 2 polyacrylamide solids in bottle, add 0.01g at every turn, shake up after adding, namely stop after there is flocks.Experimental result shows, and No. 2 occur precipitation after adding 0.2g.
Embodiment three
Get No. 3 sample 0.0101g, it is 2.97 × 10 that water 350mL is configured to concentration
-5the solution of g/mL.Separately get the sewage of 1 bottle of 450mL.According to theoretical value respectively titration 1.6mL (producer's amount of providing) is provided, observing discovery does not have flocks to occur, continues to add polyacrylamide solution in sewage, in time adding 100mL for No. 3, there is flocks in corresponding sewage bottle, stop adding polyacrylamide solution; For clear and definite test effect, get 1 bottle of 500mL sewage, add No. 3 polyacrylamide solids in bottle, add 0.01g at every turn, shake up after adding, namely stop after there is flocks.Experimental result shows, and No. 3 occur precipitation after adding 0.10g.
Embodiment four
Get No. 4 sample 0.0101g, it is 2.97 × 10 that water 350mL is configured to concentration
-5the solution of g/mL.Separately get the sewage of 1 bottle of 450mL.According to theoretical value respectively titration 1.6mL (producer's amount of providing) is provided, observing discovery does not have flocks to occur, continues to add polyacrylamide solution in sewage, in time adding 210mL for No. 4, there is flocks in corresponding sewage bottle, stop adding polyacrylamide solution; For clear and definite test effect, get 1 bottle of 500mL sewage, add No. 4 polyacrylamide solids in bottle, add 0.01g at every turn, shake up after adding, namely stop after there is flocks.Experimental result shows, and No. 4 occur precipitation after adding 0.2g.
Comparison:
By above-mentioned test, can find out: add phosphorus content average out to 11mg/L in front water, after the polyacrylamide that comes into operation, in water, average phosphorous content is reduced to 5mg/L, and result of use is remarkable.The polyacrylamide medicament of above-mentioned 4 kinds of models, under equal conditions, can find out that the consumption of No. 3 medicaments (TX5360) is minimum, and throw out best results, determine that polyacrylamide TX5360 is best for dephosphorization result of use in sewage with this, and the medicament that usage quantity is minimum.
Claims (3)
1. the method for a sewage dephosphorization, it is characterized in that: by a certain percentage polyacrylamide is put in grug feeding jar, within 24 hours, do not stop that polyacrylamide is squeezed into static mixer by dosing pump fully to mix with by the sewage entering sewage lagoon, the sewage being mixed with polyacrylamide afterwards enters in thickener and carries out sedimentation, pressure filter squeezed into by the sludge pump of mud after sedimentation bottom thickener, the sewage of overflow is back in thickener again, mud by pressure filter through manual operation by filter cake removal;
The ratio of polyacrylamide is added for (percentage amounts): 0.04-0.15 in unit sewage.
2. the method for sewage dephosphorization according to claim 1, is characterized in that: add the ratio of polyacrylamide in sewage for (percentage amounts): 0.05-0.08.
3. the method for sewage dephosphorization according to claim 1 and 2, is characterized in that: add the ratio of polyacrylamide in sewage for (percentage amounts): 0.064.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608472.5A CN104310551A (en) | 2014-11-03 | 2014-11-03 | Method for removing phosphorus in sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608472.5A CN104310551A (en) | 2014-11-03 | 2014-11-03 | Method for removing phosphorus in sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104310551A true CN104310551A (en) | 2015-01-28 |
Family
ID=52365905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410608472.5A Pending CN104310551A (en) | 2014-11-03 | 2014-11-03 | Method for removing phosphorus in sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310551A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243639A (en) * | 1979-05-10 | 1981-01-06 | Tosco Corporation | Method for recovering vanadium from petroleum coke |
| CN1321782A (en) * | 2000-04-28 | 2001-11-14 | 四川川投峨眉铁合金（集团）有限责任公司 | Wet process for extracting vanadium from waste catalyst |
| CN1506474A (en) * | 2002-12-09 | 2004-06-23 | 攀枝花钢铁有限责任公司钢铁研究院 | Phosphorus removal and purification method of vanadium-containing clinker leachate |
-
2014
- 2014-11-03 CN CN201410608472.5A patent/CN104310551A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243639A (en) * | 1979-05-10 | 1981-01-06 | Tosco Corporation | Method for recovering vanadium from petroleum coke |
| CN1321782A (en) * | 2000-04-28 | 2001-11-14 | 四川川投峨眉铁合金（集团）有限责任公司 | Wet process for extracting vanadium from waste catalyst |
| CN1506474A (en) * | 2002-12-09 | 2004-06-23 | 攀枝花钢铁有限责任公司钢铁研究院 | Phosphorus removal and purification method of vanadium-containing clinker leachate |
Non-Patent Citations (2)
| Title |
|---|
| 严莲荷: "《水处理药剂及配方手册》", 31 January 2004 * |
| 宋忠俊: "静态混合器在环保领域的应用", 《化工装备技术》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |