CN1994911A - Paper-making sewage processing method - Google Patents

Paper-making sewage processing method Download PDF

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Publication number
CN1994911A
CN1994911A CN 200610201489 CN200610201489A CN1994911A CN 1994911 A CN1994911 A CN 1994911A CN 200610201489 CN200610201489 CN 200610201489 CN 200610201489 A CN200610201489 A CN 200610201489A CN 1994911 A CN1994911 A CN 1994911A
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CN
China
Prior art keywords
coagulating agent
complex element
paper making
processing method
sewage processing
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Pending
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CN 200610201489
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Chinese (zh)
Inventor
吕建荣
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Individual
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Individual
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Priority to CN 200610201489 priority Critical patent/CN1994911A/en
Publication of CN1994911A publication Critical patent/CN1994911A/en
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Abstract

The invention discloses a disposing method of paper making 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, cationic polyacrylamide, diallyl dimethyl ammonium chloride or acrylamide copolymer; setting the compound element from cationic polyacrylamide, diallyl dimethyl ammonium chloride or acrylamide copolymer, calcium chloride, active silicon acid, alcaine, phosphoric acid or sulfuric acid .

Description

A kind of treatment process of papermaking wastewater
Technical field
The present invention relates to a kind of treatment process of papermaking wastewater, belong to technical field of sewage.
Background technology
In papermaking wastewater 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 papermaking wastewater mainly also are to use polyacrylamide or aluminium salt, do not do good differentiation at papermaking wastewater; 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 papermaking wastewater process, with regard to exist the slow and coagulating agent of coagulating agent and papermaking wastewater 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 paper making sewage processing method is provided.Utilize method of the present invention and coagulating agent to handle papermaking wastewater, 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 papermaking wastewater, 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 polymerize aluminum chloride, cationic polyacrylamide, diallyldimethylammonium chloride or acrylic amine multipolymer; Described complex element is polyacrylamide, diallyldimethylammonium chloride, acrylic amine multipolymer, calcium chloride, activated silicic acid hydrochloric acid, phosphoric acid or sulfuric acid.
Above-mentioned paper making sewage processing method 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 paper making sewage processing method 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 paper making sewage processing method is that by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5~100 part.
Aforesaid paper making sewage processing method is that by 1000 parts in the every adding coagulating agent of mass parts, corresponding adding complex element is 0.5~20 part.
Aforesaid paper making sewage processing method 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 papermaking wastewater, 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 papermaking wastewater 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 papermaking wastewater 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, because of different types of coagulating agent such as polymerize aluminum chloride, polyacrylamide, diallyldimethylammonium chloride or acrylic amine multipolymer, all 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 papermaking wastewater, 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 polymerize aluminum chloride also can be polyacrylamide, 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 polyacrylamide, diallyldimethylammonium chloride, acrylic amine multipolymer, activated silicic acid, hydrochloric acid, phosphoric acid or sulfuric acid.Pass through 1000 parts of polymerize aluminum chlorides of drug feeding pipeline 2 every addings by mass parts, polyacrylamide, diallyldimethylammonium chloride or acrylic amine multipolymer, the corresponding additional pipeline 2 that passes through adds 2 parts of calcium chloride, polyacrylamide, diallyldimethylammonium chloride, the acrylic amine multipolymer, activated silicic acid hydrochloric acid, phosphoric acid or sulfuric acid, 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 papermaking wastewater rapidly, make medicament be diffused in the papermaking wastewater uniformly rapidly, fully after the hydrolysis, can finish processing to papermaking wastewater, papermaking wastewater 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 papermaking wastewater 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 papermaking wastewater fast and finish chemical reaction in the papermaking wastewater 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 papermaking wastewater, 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 polymerize aluminum chloride, polyacrylamide, diallyldimethylammonium chloride or acrylic amine multipolymer; Described complex element is polyacrylamide, diallyldimethylammonium chloride, acrylic amine multipolymer, calcium chloride, activated silicic acid hydrochloric acid, phosphoric acid or sulfuric acid.
2. paper making sewage processing method 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. paper making sewage processing method 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 paper making sewage processing methods, 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. paper making sewage processing method 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. paper making sewage processing method 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.
CN 200610201489 2006-12-30 2006-12-30 Paper-making sewage processing method Pending CN1994911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200610201489 CN1994911A (en) 2006-12-30 2006-12-30 Paper-making sewage processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200610201489 CN1994911A (en) 2006-12-30 2006-12-30 Paper-making sewage processing method

Publications (1)

Publication Number Publication Date
CN1994911A true CN1994911A (en) 2007-07-11

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Application Number Title Priority Date Filing Date
CN 200610201489 Pending CN1994911A (en) 2006-12-30 2006-12-30 Paper-making sewage processing method

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CN (1) CN1994911A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102807274A (en) * 2012-09-03 2012-12-05 无锡市方圆实业总公司 Method for treating sewage
CN102951715A (en) * 2012-11-13 2013-03-06 山东泰德新能源有限公司 Treating agent applied to papermaking sewage
CN105984924A (en) * 2015-02-10 2016-10-05 王志龙 Papermaking sewage treatment method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102807274A (en) * 2012-09-03 2012-12-05 无锡市方圆实业总公司 Method for treating sewage
CN102951715A (en) * 2012-11-13 2013-03-06 山东泰德新能源有限公司 Treating agent applied to papermaking sewage
CN102951715B (en) * 2012-11-13 2014-05-07 山东泰德新能源有限公司 Treatment agent for papermaking wastewater
CN105984924A (en) * 2015-02-10 2016-10-05 王志龙 Papermaking sewage treatment method

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Open date: 20070711