CN1994914A - Leather sewage processing method - Google Patents
Leather sewage processing method Download PDFInfo
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- CN1994914A CN1994914A CN 200610201492 CN200610201492A CN1994914A CN 1994914 A CN1994914 A CN 1994914A CN 200610201492 CN200610201492 CN 200610201492 CN 200610201492 A CN200610201492 A CN 200610201492A CN 1994914 A CN1994914 A CN 1994914A
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- coagulating agent
- chloride
- sulfate
- complex element
- leather
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Abstract
The invention discloses a disposing method of leather effluent, which is characterized by the following: adding coagulant in the effluent pipe or outlet through drug spraying pipe; connecting at least one auxiliary pipe on the drug spraying pipe; adding compound element in the coagulant to improve the efficiency of coagulant; blending compound element and coagulant into effluent in the effluent pipe; adopting coagulant from polyaluminium chloride, aluminum sulfate, polyaluminum sulfate, polyferric sulfate, ferrous sulfate or iron trichloride; setting the compound element from calcium chloride, polyaluminium chloride, aluminium sulfate, polyaluminium sulfate, polyferric sulfate, ferrous sulfate, iron trichloride, magnesium chloride, magnesium sulfate, zinc sulfate, active silicon acid, cationic polyacrylamide, diallyl dimethyl ammonium chloride or acrylamide copolymer.
Description
Technical field
The present invention relates to a kind of treatment process of leather sewage, belong to technical field of sewage.
Background technology
In leather sewage processing and purification of water quality, coagulation is one of them very important unit, it is the state that changes particulate matter in the water by coagulating agent, suspension composition and colloid composition in the water are broken away from, forming under certain conditions can be precipitated or the flco of dissolved air flotation, by precipitation or air supporting, make this part flco separately then.In coagulating treatment, for the employed coagulating agent of dissimilar sewage is the key of handling, therefore a lot of researchists are arranged in addition at new composite coagulant or the flocculation agent of active research exploitation, and the existing various coagulating agent of handling leather sewage mainly also are to use molysite or aluminium salt, do not do good differentiation at leather sewage; Complex process also is a significant element in sewage disposal simultaneously, exist some problems of composite time and consumption on the complex process, such as in handling the leather sewage process, with regard to exist the slow and coagulating agent of coagulating agent and leather sewage reaction not with water in suspended substance problem such as react, cause the metallic element in the coagulating agent to remain in the water, produced secondary pollution, the reaction of coagulating agent is incomplete simultaneously, also cause the waste of coagulating agent, more increased the expense of sewage disposal.
Summary of the invention
The objective of the invention is to, a kind of new leather sewage treatment process is provided.Utilize method of the present invention and coagulating agent to handle leather sewage, have good sewage processing effect, advantage such as residuals is few in coagulating agent sufficient reacting, the water, the medicament usage quantity is little
Technical scheme of the present invention: a kind of treatment process of leather sewage, be included in the sewer line or the exit adds coagulating agent by the medicine spraying tube road, this method is to connect at least 1 additional pipeline on the medicine spraying tube road, in coagulating agent, add the complex element (or being called compound substance) that is used to improve coagulating agent efficient by additional pipeline, complex element with enter sewer line after coagulating agent mixes in or in the sewage in exit; Described coagulating agent is bodied ferric sulfate, polymerize aluminum chloride diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer; Described complex element is calcium chloride, magnesium chloride, sal epsom, zinc sulfate, zinc chloride, phosphoric acid, sulfuric acid, hydrochloric acid, activated silicic acid, diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer.
Above-mentioned leather sewage treatment process is, complex element and coagulating agent blended time is less than 7 seconds, and then enters in the sewage in sewer line or exit.
Above-mentioned leather sewage treatment process is that complex element and coagulating agent blended time are 2～6 seconds, and then enter in the sewage in sewer line or exit.
Above-mentioned leather sewage treatment process is that by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5～100 part.
Aforesaid leather sewage treatment process is that by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5～20 part.
Aforesaid leather sewage treatment process is that by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5～10 part.
Compared with the prior art, utilize method of the present invention and coagulating agent to handle leather sewage, have good sewage processing effect, advantage such as residuals is few in coagulating agent sufficient reacting, the water, the medicament usage quantity is little.
The applicant finds in long-term practice and test, coagulating agent is with after the complex element of various compositions mixes, promptly produce a kind of inorganic polymer of more high-polymerization degree, complex element is meant the various medicaments that can improve the coagulating agent effect, but in reaction process, the inorganic polymer form only can be stabilized in the very short time, prolong in time, can make the inorganic polymer of high-polymerization degree progressively return to original coagulation form, therefore complex element is dropped into be mixed in the coagulating agent and drop into the time of reacting in the sewage, need in seconds finish.According to above-mentioned situation, the applicant adopts properly mixed coagulating agent and complex element separate inputs, afterwards contacts the effect that reaches optimal coagulation during the inorganic polymer form of formation high-polymerization degree with sewage in coagulating agent and complex element mixing.Adopt such method can reduce the consumption of coagulating agent 1/3, make that again suspended substance and the glial response in coagulating agent and the sewage is more complete, the coagulating agent utilization is more thorough, has reduced coagulating agent and has remained in the water, has avoided the secondary pollution to water quality.The applicant also tests pairing all kinds of sewage repeatedly according to this method simultaneously; processing leather sewage optimal coagulating agent of institute and complex element have been found; and only proportion relation; when having solved problem of environmental pollution, reduced processing cost like this; but and to the second stage employ also of the leather sewage after handling; further save fund and Water Energy, protected environment, had good economic benefits and social benefit.
Description of drawings
Accompanying drawing 1 is an enforcement principle schematic of the present invention.
Embodiment
Embodiments of the invention are because of different types of coagulating agent such as bodied ferric sulfate, polymerize aluminum chloride diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer; Can react at short notice during mixing, form the inorganic polymer form, therefore coagulating agent of the present invention and complex element (or claiming compound substance) can be allied substances, but can not use identical material as coagulating agent and complex element simultaneously at drug feeding pipeline 2 and additional pipeline 3 in concrete the use.
As shown in Figure 1, a drug feeding pipeline 2 is set on the blow-off line 1 of mobile leather sewage, side in drug feeding pipeline 2 connects an additional pipeline 3, add coagulating agent by drug feeding pipeline 2, the coagulating agent that is added is that bodied ferric sulfate also can be polymerize aluminum chloride diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer.And by tube-carrier 3 adding complex elements, the complex element that is added is that calcium chloride also can be magnesium chloride, sal epsom, zinc sulfate, zinc chloride, phosphoric acid, sulfuric acid, hydrochloric acid, activated silicic acid, diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer.Pass through 1000 parts of bodied ferric sulfates of drug feeding pipeline 2 every addings by mass parts, polymerize aluminum chloride, diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer, the corresponding additional pipeline 2 that passes through adds 2 parts of calcium chloride, magnesium chloride, sal epsom, zinc sulfate, zinc chloride, phosphoric acid, sulfuric acid, hydrochloric acid, activated silicic acid, diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer, the coagulating agent that is added mixes in 7 seconds in drug feeding pipeline 2 bottoms with complex element, form the inorganic polymer form, and contact with the mobile leather sewage rapidly, make medicament be diffused in the leather sewage uniformly rapidly, fully after the hydrolysis, can finish processing to leather sewage, leather sewage after handling is tested, it goes out water ph value, the COD value all can reach national standard, but and the second stage employ also of the leather sewage after handling, save fund and Water Energy, had good economic benefits and social benefit.
Main points of the present invention be with properly mixed coagulating agent with after complex element mixes, in the regular hour, render in the leather sewage fast and finish chemical reaction in the leather sewage treating processes.Be not limited in by drug feeding pipeline and additional pipeline and throw in coagulating agent and complex element,, also can adopt other dosing mode as long as can satisfy above-mentioned requirements.
Claims (6)
1. the treatment process of a leather sewage, be included in the sewer line or the exit adds coagulating agent by the medicine spraying tube road, it is characterized in that: on the medicine spraying tube road, connect at least 1 additional pipeline, in coagulating agent, add the complex element that is used to improve coagulating agent efficient by additional pipeline, complex element with enter sewer line after coagulating agent mixes in or in the sewage in exit; Described coagulating agent is bodied ferric sulfate, polymerize aluminum chloride diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer; Described complex element is calcium chloride, magnesium chloride, sal epsom, zinc sulfate, zinc chloride, activated silicic acid, phosphoric acid, sulfuric acid, hydrochloric acid, diallyldimethylammonium chloride, diallyldimethylammonium chloride or acrylic amine multipolymer.
2. leather sewage treatment process according to claim 1 is characterized in that: complex element and coagulating agent blended time is less than 7 seconds, and then enters in the sewage in sewer line or exit.
3. leather sewage treatment process according to claim 2 is characterized in that: complex element and coagulating agent blended time are 2～6 seconds, and then enter in the sewage in sewer line or exit.
4. according to claim 1,2 or 3 described leather sewage treatment processs, it is characterized in that: by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5～100 part.
5. leather sewage treatment process according to claim 4 is characterized in that: by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5～20 part.
6. leather sewage treatment process according to claim 5 is characterized in that: by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5～10 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610201492 CN1994914A (en) | 2006-12-30 | 2006-12-30 | Leather sewage processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610201492 CN1994914A (en) | 2006-12-30 | 2006-12-30 | Leather sewage processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1994914A true CN1994914A (en) | 2007-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610201492 Pending CN1994914A (en) | 2006-12-30 | 2006-12-30 | Leather sewage processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1994914A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649384A (en) * | 2013-11-19 | 2015-05-27 | 谈丽娜 | Method for treating leather sewage |
| CN105984923A (en) * | 2015-02-09 | 2016-10-05 | 王志龙 | Leather sewage processing method |
-
2006
- 2006-12-30 CN CN 200610201492 patent/CN1994914A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649384A (en) * | 2013-11-19 | 2015-05-27 | 谈丽娜 | Method for treating leather sewage |
| CN105984923A (en) * | 2015-02-09 | 2016-10-05 | 王志龙 | Leather sewage processing method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070711 |