CN103663617B - A kind of method of wastewater treatment containing grease - Google Patents
A kind of method of wastewater treatment containing grease Download PDFInfo
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- CN103663617B CN103663617B CN201310671447.7A CN201310671447A CN103663617B CN 103663617 B CN103663617 B CN 103663617B CN 201310671447 A CN201310671447 A CN 201310671447A CN 103663617 B CN103663617 B CN 103663617B
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- sewage
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- adsorptive
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000004519 grease Substances 0.000 title claims abstract description 11
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 11
- 239000010865 sewage Substances 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 11
- 238000001556 precipitation Methods 0.000 claims abstract description 7
- 239000006228 supernatant Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 39
- 230000000274 adsorptive effect Effects 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 6
- 229940037003 alum Drugs 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 6
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- -1 8 parts Substances 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 5
- 239000010903 husk Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The invention discloses a kind of method of wastewater treatment containing grease, by adding pH adjusting agent, regulating the pH value of sewage to 7.0-8.5; After adding sewage-treating agent, be uniformly mixed; Reclaim supernatant liquor after precipitation, this treatment agent can effectively process containing greasy sewage, and cost is low, effective, and alleviate containing the pollution of greasy sewage to ecotope, after the inventive method process, the fat content of sewage can reach below 12mg/L.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to a kind of method of wastewater treatment containing grease.
Background technology
In sanitary wastewater and trade effluent, much all contain a large amount of greases, cause sewage viscosity comparatively large, oil droplet and suspended solid floats in aqueous phase or settling velocity slowly, directly affect the breakdown of emulsion in water treatment procedure and flocculating effect.This makes to adopt traditional sewage-treating agent to be difficult to reach qualified oily water separation and sewage purification index.Therefore, a kind of for the method for wastewater treatment containing grease, be required at present.
Summary of the invention
Object of the present invention is exactly defect for above-mentioned existence and provides a kind of method of wastewater treatment containing grease.This treatment agent can effectively process containing greasy sewage, and cost is low, effective, and alleviate containing the pollution of greasy sewage to ecotope, after the inventive method process, the fat content of sewage can reach below 12mg/L.
A kind of method of wastewater treatment technical scheme containing grease of the present invention is comprise the following steps:
(1) by adding pH adjusting agent, regulate the pH value of sewage extremely to 7.0-8.5;
(2), after adding sewage-treating agent, be uniformly mixed;
(3) supernatant liquor is reclaimed after precipitation.
PH adjusting agent is at least one in hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, calcium oxide.
Sewage-treating agent is polyferric chloride, polyacrylamide, polymine, wilkinite, sodium-chlor, lime, sodium hydroxide, alum, adsorptive.
Sewage-treating agent comprises following composition by weight: polyferric chloride 15-20 parts, polyacrylamide 10-15 parts, polymine 7-12 parts, wilkinite 28-43 parts, 5-15 parts, sodium-chlor, 0.5-1.5 parts, lime, sodium hydroxide 5-10 part, alum 5-15 part, adsorptive 20-30 parts.
Adsorptive comprises wood chip, stalk, gac, rice husk, wherein charcoal absorption thing gross weight 1/1 to two/3rd.
The injected volume of sewage-treating agent is: 20Kg sewage throws in 1Kg sewage-treating agent
In step (2), stirring velocity is 200-300r/min.
Beneficial effect of the present invention is: in the inventive method, sewage-treating agent all uses under the environment that itself activity is higher, and therefore processing efficiency is high.Sewage-treating agent used is containing sodium hydroxide, sodium hydroxide is dissolved in sewage and can ionizes completely, there is extremely strong corrodibility, can the organic tissues such as Mierocrystalline cellulose be destroyed, and decompose residual impurity further, make suspended substance fully decompose precipitation, and the foul smell can also eliminated in sewage and color, kill bacteria, the sterilizing and purifying process suspended substance that can be used for sewage is mainly lipid, also can refine recovery.Polyferric chloride coagulation effect soluble in water is excellent, product stability is good, is suitable for pH value range wide, uses inorganics and organic components to work in coordination with as coagulating agent simultaneously, makes the present invention have the effect of excellent flocculation.Suspended particle in sewage, particle not soluble in water can be absorbed by the adsorptive in the present invention.Sodium-chlor, lime can decompose the organic substance such as protein, fat, starch, fiber contained in sewage, and the material making it lighter is suspended in the water surface, and heavier species precipitate is water-bed.Sewage-treating agent production cost of the present invention is low, simple to operate, purification speed fast, effective, the advantages such as environment-protecting asepsis.After the inventive method process, the fat content of sewage can reach below 12mg/L.
Embodiment:
In order to understand the present invention better, describe technical scheme of the present invention in detail with specific examples below, but the present invention is not limited thereto.
Embodiment 1
A kind of method of wastewater treatment containing grease of the present invention, comprises the following steps:
(1) by adding pH adjusting agent, regulate the pH value of sewage extremely to 7.0-8.5;
(2), after adding sewage-treating agent, 200-300r/min is uniformly mixed;
(3) supernatant liquor is reclaimed after precipitation.
PH adjusting agent is at least one in hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, calcium oxide.
Sewage-treating agent comprises following composition by weight: polyferric chloride 16 parts, polyacrylamide 12 parts, polymine 10 parts, wilkinite 38 parts, 8 parts, sodium-chlor, 1 part, lime, 8 parts, sodium hydroxide, 7 parts, alum, adsorptive 25 parts.
Adsorptive comprises wood chip, stalk, gac, rice husk, wherein charcoal absorption thing gross weight 1/1 to two/3rd.
The injected volume of sewage-treating agent is: 20Kg sewage throws in 1Kg sewage-treating agent.
After the inventive method process, the fat content of sewage can reach below 9mg/L.
Embodiment 2
A kind of method of wastewater treatment containing grease of the present invention, comprises the following steps:
(1) by adding pH adjusting agent, regulate the pH value of sewage extremely to 7.0-8.5;
(2), after adding sewage-treating agent, 200-300r/min is uniformly mixed;
(3) supernatant liquor is reclaimed after precipitation.
PH adjusting agent is at least one in hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, calcium oxide.
Sewage-treating agent comprises following composition by weight: polyferric chloride 20 parts, polyacrylamide 15 parts, polymine 12 parts, wilkinite 43 parts, 15 parts, sodium-chlor, 1.5 parts, lime, 10 parts, sodium hydroxide, 15 parts, alum, adsorptive 30 parts.
Adsorptive comprises wood chip, stalk, gac, rice husk, wherein charcoal absorption thing gross weight 1/1 to two/3rd.
The injected volume of sewage-treating agent is: 20Kg sewage throws in 1Kg sewage-treating agent.
After the inventive method process, the fat content of sewage can reach below 12mg/L.
Embodiment 3
A kind of method of wastewater treatment containing grease of the present invention, comprises the following steps:
(1) by adding pH adjusting agent, regulate the pH value of sewage extremely to 7.0-8.5;
(2), after adding sewage-treating agent, 200-300r/min is uniformly mixed;
(3) supernatant liquor is reclaimed after precipitation.
PH adjusting agent is at least one in hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, calcium oxide.
Sewage-treating agent comprises following composition by weight: polyferric chloride 15 parts, polyacrylamide 10 parts, polymine 7 parts, wilkinite 28 parts, 5 parts, sodium-chlor, 0.55 part, lime, 5 parts, sodium hydroxide, 5 parts, alum, adsorptive 20 parts.
Adsorptive comprises wood chip, stalk, gac, rice husk, wherein charcoal absorption thing gross weight 1/1 to two/3rd.
The injected volume of sewage-treating agent is: 20Kg sewage throws in 1Kg sewage-treating agent.
After the inventive method process, the fat content of sewage can reach below 12mg/L.
Claims (1)
1. the method for wastewater treatment containing grease, is characterized in that, comprise the following steps:
(1) by adding pH adjusting agent, regulate the pH value of sewage to 7.0-8.5;
(2) after adding sewage-treating agent, be uniformly mixed, stirring velocity is 200-300r/min;
(3) supernatant liquor is reclaimed after precipitation;
PH adjusting agent is at least one in hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, calcium oxide;
Sewage-treating agent comprises following composition by weight: polyferric chloride 16 parts, polyacrylamide 12 parts, polymine 10 parts, wilkinite 38 parts, 8 parts, sodium-chlor, 1 part, lime, 8 parts, sodium hydroxide, 7 parts, alum, adsorptive 25 parts;
Adsorptive comprises wood chip, stalk, gac, rice husk, and wherein gac accounts for 1/1 to two/3rd of adsorptive gross weight;
The injected volume of sewage-treating agent is: 20kg sewage throws in 1kg sewage-treating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671447.7A CN103663617B (en) | 2013-12-11 | 2013-12-11 | A kind of method of wastewater treatment containing grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671447.7A CN103663617B (en) | 2013-12-11 | 2013-12-11 | A kind of method of wastewater treatment containing grease |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103663617A CN103663617A (en) | 2014-03-26 |
| CN103663617B true CN103663617B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310671447.7A Active CN103663617B (en) | 2013-12-11 | 2013-12-11 | A kind of method of wastewater treatment containing grease |
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| Country | Link |
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| CN (1) | CN103663617B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107235530A (en) * | 2017-06-29 | 2017-10-10 | 太仓市其盛化纤厂 | A kind of sewage-treating agent |
| CN107902769A (en) * | 2017-11-30 | 2018-04-13 | 广西南宁途御科技有限公司 | Sewage-treating agent of Biocomposite material and preparation method thereof |
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| CN104291408A (en) * | 2014-09-23 | 2015-01-21 | 博瑞德（南京）净化技术有限公司 | Special sewage treatment agent for organisms and application method of sewage treatment agent |
| CN104291388A (en) * | 2014-09-23 | 2015-01-21 | 博瑞德（南京）净化技术有限公司 | Industrial sewage treating agent and application method thereof |
| CN104355377A (en) * | 2014-10-21 | 2015-02-18 | 苏州富奇诺水治理设备有限公司 | Sewage treatment agent and preparation method |
| CN104445513B (en) * | 2014-11-05 | 2016-11-30 | 中国环境科学研究院 | A kind of straw processing method adsorbing oils and fats in kitchen waste water |
| CN104630282A (en) * | 2015-01-26 | 2015-05-20 | 常州大学 | Biomass coupling treatment technology combining adsorption and fermentation |
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| CN109110874A (en) * | 2018-09-26 | 2019-01-01 | 深圳市裕农科技股份有限公司 | A kind of waste water treating agent and the preparation method and application thereof |
| CN109179531A (en) * | 2018-10-30 | 2019-01-11 | 薛燕 | A kind of sewage-treating agent and preparation method thereof |
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| CN103663617A (en) | 2014-03-26 |
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