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Treating agent for papermaking sewage

A technology for papermaking sewage and treatment agent, which is applied in ion-exchange water/sewage treatment, processing wastewater treatment, chemical/physical processes, etc., and can solve the problems of difficult recycling of solid waste, poor recycling performance, and low flocculation characteristics.

Active Publication Date: 2015-07-29
阳原县仁恒精细粘土有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The sewage treatment agents in the prior art have low flocculation characteristics, and the solid waste formed after use is difficult to implement resource treatment; on the other hand, the recycling performance is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 400kg of sodium-based bentonite, 80kg of coal powder, 8kg of starch, add 244kg of water, stir well, extrude to make 1mm diameter particles, and burn at 600°C for 7h.

[0031] Prepare 1000kg of acrylamide aqueous solution with a mass fraction of acrylamide of 40%.

[0032] Add the burned sodium bentonite to the acrylamide aqueous solution and mix well. The mixed system was heated to 40°C, stirred, and reacted for 2 hours.

[0033] Take 333.33 kg of acryloyloxyethyltrimethylammonium chloride and add it to the obtained material after stirring.

[0034] Take 2.2kg of ammonium persulfate and add it into the reaction system, raise the temperature to 45°C, activate the polymerization reaction, and stir.

[0035] After the reaction system automatically rises to 85°C-95°C and then drops to 60°C, add 1.04kg of N,N'-dimethylacrylamide into the system, raise the temperature to 70°C, stir, and react for 30 minutes.

[0036] The reacted mixture was extruded, and moved to an e...

Embodiment 2

[0038] Take 436.80kg of sodium bentonite, 91.73kg of coal powder, 9.17kg of starch, add 279.60kg of water, stir well, extrude to make 1mm diameter particles, and burn at 640°C for 7h.

[0039] Prepare 1000kg of acrylamide aqueous solution with a mass fraction of acrylamide of 42%.

[0040] Add the burned sodium bentonite to the acrylamide aqueous solution and mix well. The mixed system was heated to 40°C, stirred, and reacted for 2 hours.

[0041] Take 364 kg of acryloyloxyethyltrimethylammonium chloride and add it to the obtained material after stirring.

[0042] Take 2.67kg of ammonium persulfate and add it into the reaction system, raise the temperature to 45°C, activate the polymerization reaction, and stir.

[0043] After the reaction system automatically rises to 85°C-95°C and then drops to 60°C, add 1.40kg of N,N'-dimethylacrylamide into the system, raise the temperature to 70°C, stir, and react for 30 minutes.

[0044] The reacted mixture was extruded, and moved to ...

Embodiment 3

[0046]Take 466.40kg of sodium bentonite, 102.61kg of coal powder, 10.26kg of starch, add 312.81kg of water, stir well, extrude to make 1mm diameter particles, and burn at 680°C for 7h.

[0047] Prepare 1000kg of acrylamide aqueous solution with a mass fraction of acrylamide of 44%.

[0048] Add the burned sodium bentonite to the acrylamide aqueous solution and mix well. The mixed system was heated to 40°C, stirred, and reacted for 2 hours.

[0049] Take 396 kg of acryloyloxyethyltrimethylammonium chloride and add it to the obtained material after stirring.

[0050] Take 3.18kg of ammonium persulfate and add it into the reaction system, raise the temperature to 45°C, activate the polymerization reaction, and stir.

[0051] After the temperature of the reaction system automatically rises to 85°C-95°C and then drops to 60°C, take 1.79kg of N,N'-dimethylacrylamide into the system, raise the temperature to 70°C, stir, and react for 30 minutes.

[0052] The reacted mixture was ex...

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PUM

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Abstract

The invention discloses a treating agent for physicochemical treatment on papermaking sewage. The treating agent is prepared through the following steps: uniformly mixing bentonite, starch and coal powder, adding water for pulping, and squeezing into particles with the diameter of 1mm; firing the particles at the temperature of 600-800 DEG C; adding the prepared bentonite particles into an acrylamide aqueous solution, and stirring for 2h with a high speed at the temperature of 40 DEG C; adding cationic monomers at the temperature of 20 DEG C; adding an initiator and raising the temperature to be 45 DEG C to excite a polymerization reaction, raising the temperature to be 85-95 DEG C, then, lowering the temperature to be 60 DEG C, adding a cross-linking agent of which the mass is 0.26-0.63% of that of acrylamide aqueous, raising the temperature to be 70 DEGC, and reacting for 30 min; transferring the system into an environment with the temperature of 105 DEG C, leaving the system to stand and drying, so as to obtain the treating agent for papermaking sewage. The treating agent for papermaking sewage can efficiently adsorb anionic garbage and other pollutants in the papermaking sewage, and can be effectively used for the physicochemical treatment on papermaking sewage.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and environmental protection, and relates to a sewage treatment agent, in particular to a treatment agent for physical and chemical treatment of papermaking sewage. Background technique [0002] With the development of the pulp and paper industry, it has become a new trend for waste paper to be reused for papermaking. However, the particle size of water-based ink is small, excessively dispersed, and easily deposited inside the cell cavity and on the pit wall, resulting in difficulty in deinking; the whiteness of the pulp after disintegration is low; more anionic garbage is produced after alkaline disintegration; The slurry contains more stickies. The waste paper recycling process will produce a large amount of washing wastewater in the pulping part. The wastewater not only has high SS content and large chroma, but also contains a large amount of soluble COD with complex components. So...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30B01J41/12C02F1/42C02F103/28B01J41/10B01J41/13
Inventor 俞铁明张有连张怀滨姜跃平姜健张怀辉
Owner 阳原县仁恒精细粘土有限责任公司