A kind of organic-inorganic composite sludge dehydration conditioner

An inorganic composite and sludge dehydration technology, applied in water/sludge/sewage treatment, sludge treatment, biological sludge treatment, etc., can solve the problem of affecting the dehydration effect, the internal skeleton and channels are easy to collapse, and the dehydration effect is not good, etc. problems, achieve the effect of maintaining smooth drainage, improving dehydration conditioning effect, and stable skeleton structure

Active Publication Date: 2021-08-17
芜湖海创环保科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: the dehydration effect of the traditional organic-inorganic composite sludge dewatering conditioner is not good, and the internal skeleton and pores are easy to collapse during the compression process, which affects the dehydration effect, and an organic-inorganic composite sludge is provided. dehydrating conditioner

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] The sepiolite and dilute hydrochloric acid with a mass fraction of 8% were added to the hydrothermal kettle in a mass ratio of 1:10, and then the hydrothermal kettle was sealed, and the temperature was 155 ° C and the rotation speed was 600 r / min, and the constant temperature stirring reaction was performed for 6 hours. Then, discharge and filter to obtain No. 1 filter cake, and wash the obtained No. 1 filter cake with deionized water for 5 times, and then dry the washed No. 1 filter cake to constant weight at a temperature of 95 ° C to obtain Dry the No. 1 filter cake, then transfer the dried No. 1 filter cake to a tube furnace, under the condition of a temperature of 240°C, after low-temperature roasting for 3 hours, cool down to room temperature with the furnace, and discharge to obtain acid-modified sepiolite; In parts by weight, take 30 parts of graphene oxide, 8 parts of sodium azide, and 120 parts of water in turn, mix them and pour them into a three-necked flask,...

example 2

[0035] In parts by weight, take 30 parts of graphene oxide, 8 parts of sodium azide, and 120 parts of water in turn, mix them and pour them into a three-necked flask, and move the three-necked flask to a digital-display speed measuring constant temperature magnetic stirrer, at a temperature of 75 ℃, under the condition of rotating speed of 500r / min, after constant temperature stirring reaction for 4h, filter to obtain No. 2 filter cake, and the obtained No. 2 filter cake is washed with deionized water for 6 times, and then the washed No. It was dried to constant weight at 105°C to obtain a dry No. 2 filter cake. Then, the dry No. 2 filter cake, lithium aluminum hydride and tetrahydrofuran were poured into the reaction kettle in a mass ratio of 5:1:20, and the reaction was heated and stirred for 3 hours. , the solvent is recovered by vacuum distillation to obtain aminated modified graphene oxide; (N-amidino) dodecyl acrylamide and methoxy polyethylene glycol are mixed in a mass ...

example 3

[0037] In parts by weight, take 30 parts of graphene oxide, 8 parts of sodium azide, and 120 parts of water in turn, mix them and pour them into a three-necked flask, and move the three-necked flask to a digital-display speed measuring constant temperature magnetic stirrer, at a temperature of 75 ℃, under the condition of rotating speed of 500r / min, after constant temperature stirring reaction for 4h, filter to obtain No. 2 filter cake, and the obtained No. 2 filter cake is washed with deionized water for 6 times, and then the washed No. It was dried to constant weight at 105°C to obtain a dry No. 2 filter cake. Then, the dry No. 2 filter cake, lithium aluminum hydride and tetrahydrofuran were poured into the reaction kettle in a mass ratio of 5:1:20, and the reaction was heated and stirred for 3 hours. , the solvent is recovered by vacuum distillation to obtain aminated modified graphene oxide; (N-amidino) dodecyl acrylamide and methoxy polyethylene glycol are mixed in a mass ...

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Abstract

The invention discloses an organic-inorganic composite sludge dehydration conditioner, which belongs to the technical field of environmental protection materials. The composite sludge dehydration conditioner developed by the present invention includes acid-modified sepiolite, aminated modified graphene oxide, urease, urea, self-made block copolymer, N'-hexadecyl-N,N-dimethyl ethyl ethyl amidine, carbonate foaming agent and dispersant, during the preparation process, weigh each component according to the raw material composition; first acid-modified sepiolite, amination-modified graphene oxide, urea, Segment copolymer, N'-hexadecyl-N,N-dimethylethylamidine and dispersant are stirred and mixed to obtain a mixture; the mixture and water are stirred and mixed, and the inert gas is continuously introduced during the stirring process , and then freeze-dried in a vacuum to obtain a dry material; and then stir and mix the dry material, urease and carbonate foaming agent to obtain an organic-inorganic composite sludge dehydration conditioner. The organic-inorganic composite sludge dewatering conditioner prepared by the technical scheme of the invention has the characteristics of excellent dewatering performance.

Description

technical field [0001] The invention discloses an organic-inorganic composite sludge dewatering conditioner, which belongs to the technical field of environmental protection materials. Background technique [0002] A sludge treatment method that removes water from fluid raw, concentrated or digested sludge and converts it into semi-solid or solid sludge. After dewatering, the moisture content of the sludge can be reduced to 55% to 80%, depending on the nature of the sludge and sediment and the efficiency of the dewatering equipment. The further dewatering of the sludge is called sludge drying, and the moisture content of the dried sludge is less than ten percent. The methods of dehydration mainly include natural drying method, mechanical dehydration method and granulation method. Natural drying method and mechanical dewatering method are suitable for sewage sludge. The granulation method is suitable for coagulation and sedimentation of sludge. Sludge is a product of sewa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/148C02F11/02
CPCC02F11/14
Inventor 陈卓异
Owner 芜湖海创环保科技有限责任公司
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