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A kind of preparation method of perlite filter agent

A technology of perlite and filter agent, which is applied in the field of preparation of perlite filter agent, can solve the problems of poor filter effect of perlite filter agent, and achieve the effect of improving filter effect, increasing content and increasing porosity

Active Publication Date: 2021-09-28
廊坊英康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main technical problem to be solved by the present invention is to provide a preparation method of perlite filter for the shortcomings of traditional perlite filter which have poor filtering effect

Method used

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  • A kind of preparation method of perlite filter agent

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example 1

[0020] The mass fraction of the carbon nanotubes with 68% sulfuric acid in a mass ratio of 1: 5 were mixed in a beaker, and added to the beaker 6 times the mass of the carbon nanotube mass fraction of 68% nitric acid, at a temperature of 80 ℃, speed after 6h of stirring and mixing conditions 400r / min, and filtered to give carbon nanotubes pretreated blank, the blank pretreated carbon nanotubes was washed with water until neutral wash, and under conditions of temperature 80 ℃ vacuum dried 3h, carbon nanotubes obtained pretreatment, the pretreated carbon nanotubes and nano Cu mass ratio of 1: 2 were mixed in a flask and adding 20 times the mass of pretreated carbon nanotubes glycol flask at a frequency of 55kHz after 40min under ultrasonic dispersion, the mass fraction of 12% sodium hydroxide solution to adjust the pH of the flask to 9.2, and at a temperature of 90 ℃, mixing speed was stirred 5h under 500r / min, and the flask the material was centrifuged 20min after speed under 4...

example 2

[0022] The mass fraction of the carbon nanotubes with 68% sulfuric acid in a mass ratio of 1: 5 were mixed in a beaker, and added to the beaker 6 times the mass of the carbon nanotube mass fraction of 68% nitric acid, at a temperature of 80 ℃, speed after 6h of stirring and mixing conditions 400r / min, and filtered to give carbon nanotubes pretreated blank, the blank pretreated carbon nanotubes was washed with water until neutral wash, and under conditions of temperature 80 ℃ vacuum dried 3h, carbon nanotubes obtained pretreatment, the pretreated carbon nanotubes and nano Cu mass ratio of 1: 2 were mixed in a flask and adding 20 times the mass of pretreated carbon nanotubes glycol flask at a frequency of 55kHz after 40min under ultrasonic dispersion, the mass fraction of 12% sodium hydroxide solution to adjust the pH of the flask to 9.2, and at a temperature of 90 ℃, mixing speed was stirred 5h under 500r / min, and the flask the material was centrifuged 20min after speed under 4...

example 3

[0024] The ethyl orthosilicate and water mixed in a mass ratio of 1:10, and TEOS and water was added tetraethyl orthosilicate 5 times the mass of absolute ethanol and 2-fold by mass TEOS aqueous ethanol solution of mass fraction of 15% hydrochloric acid, at a temperature of 45 ℃, under stirring speed of 400r / min 2h after mixing, to obtain a silica precursor, silica precursor and a mass fraction of 65% mixing mass ratio of 1:12, and adding a mixture of the silica precursor mass of silica precursor with an aqueous solution of ethanol 4 times the mass of perlite and silica precursor 3 times the mass fraction of 20% aqueous ammonia at a temperature of 40 ℃, mixing speed was stirred 60min under 380r / min, and filtered to give the blank pretreatment perlite; perlite blank shift pretreated in a muffle furnace at a temperature of 500 deg.] C under calcination after 2h, the temperature was lowered to room temperature muffle furnace discharge material, to obtain pre-perlite; perlite pret...

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Abstract

The invention discloses a preparation method of a perlite filter and belongs to the technical field of water treatment materials. Pre-modified perlite is obtained by modifying perlite with silica gel and a modifier, mixing the mixture of pre-modified perlite and carbon nanotubes at a mass ratio of 1:10 to 1:20, and adding pre-modified perlite Graphene oxide solution with 3 to 5 times the mass of modified perlite is stirred and mixed, and the pH is adjusted to 7.8 to 8.8 to obtain a pre-modified perlite mixture. The pre-modified perlite mixture and polyethylene polyamine are in a mass ratio of 8: 1-12:1 mixing, and adding 0.05-0.08 times the mass of the pre-modified perlite mixture, glucose β-lactone aqueous solution, stirring and mixing, filtering, standing, and freeze-drying to obtain modified perlite; Mix perlite and sodium hydroxide solution at a mass ratio of 1:8 to 1:10, soak, filter, wash with water until the washing liquid is neutral, and dry to obtain perlite filter agent. It has the characteristics of excellent filtering effect.

Description

Technical field [0001] The present invention discloses a method of preparation of a pearl rock filter, which belongs to the technical field of water treatment materials. Background technique [0002] The content of domestic sewage is relatively fixed, mainly containing organic matter such as carbohydrate, protein, amino acid, fat, is suitable for the growth of bacteria, becoming bacteria, viral survival and reproduction, but domestic sewage generally does not contain toxicity, with certain fat effects, available Irrigation farmland. The ingredients of agricultural wastewater have a variety of villages and towns of different seasons, different places, different development goals, and their wastewater requires different treatment methods. In the treatment of sewage, in order to reduce the wastewater discharge and its complexity, it should be combined with the construction of biogas tanks that are vigorously promoting, and the flushing water (black water) in the water (black water) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/06
CPCB01D39/06B01D2239/0407B01D2239/0442B01D2239/10B01D2239/1208
Inventor 许水仙刘侠宋宇星
Owner 廊坊英康科技有限公司