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Preparation method of long-acting phosphorus removal filler

A long-term, high-quality technology, applied in the direction of chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve the problems of phosphorus removal efficiency and service life that cannot be further improved, so as to prevent secondary pollution and improve removal The effect of improving the efficiency and phosphorus removal effect

Inactive Publication Date: 2019-07-12
钱兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: Aiming at the problem that the phosphorus removal efficiency and service life of traditional long-acting phosphorus-removing fillers cannot be further improved, a preparation method for long-term phosphorus-removing fillers is provided

Method used

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  • Preparation method of long-acting phosphorus removal filler

Examples

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example 1

[0025] Mix polyallylamine hydrochloride and water in a beaker at a mass ratio of 1:40, and add sodium chloride 0.2 times the mass of polyallylamine hydrochloride to the beaker at a temperature of 40°C and a rotational speed of 400r / min Under the condition of stirring and mixing for 2 hours, polyallylamine hydrochloride solution was obtained; chitosan and acetic acid solution with a mass fraction of 5% were mixed in a mass ratio of 1:15, and the mixture of chitosan and mass hydrochloric acid solution Add iron ferric oxide with 2 times the quality of chitosan, mixed surfactant with 0.3 times the quality of chitosan and paraffin wax with 0.2 times the quality of chitosan, at a temperature of 60 °C and a rotating speed of 300r / min. After stirring and mixing for 40 minutes, the chitosan mixture was obtained. The chitosan mixture and the glutaraldehyde solution with a mass fraction of 20% were mixed at a mass ratio of 10:2, and the temperature was 65°C and the rotational speed was 32...

example 2

[0027] Mix polyallylamine hydrochloride and water in a beaker at a mass ratio of 1:40, and add sodium chloride 0.2 times the mass of polyallylamine hydrochloride to the beaker at a temperature of 40°C and a rotational speed of 400r / min Under the condition of stirring and mixing for 2 hours, polyallylamine hydrochloride solution was obtained; chitosan and acetic acid solution with a mass fraction of 5% were mixed in a mass ratio of 1:15, and the mixture of chitosan and mass hydrochloric acid solution Add the mixed surfactant of 0.3 times of the quality of chitosan and the paraffin of 0.2 times of the quality of chitosan, at the temperature of 60 ℃, under the condition of 300r / min, stirring and mixing for 40min to obtain the chitosan mixture, The chitosan mixture and the glutaraldehyde solution with a mass fraction of 20% were mixed at a mass ratio of 10:2, and then stirred and reacted for 2 hours at a temperature of 65°C and a rotational speed of 320r / min, and then heated at a t...

example 3

[0029]Mix polyallylamine hydrochloride and water in a beaker at a mass ratio of 1:40, and add sodium chloride 0.2 times the mass of polyallylamine hydrochloride to the beaker at a temperature of 40°C and a rotational speed of 400r / min Under the condition of stirring and mixing for 2 hours, polyallylamine hydrochloride solution was obtained; chitosan and acetic acid solution with a mass fraction of 5% were mixed in a mass ratio of 1:15, and the mixture of chitosan and mass hydrochloric acid solution Add iron ferric oxide with 2 times the quality of chitosan, mixed surfactant with 0.3 times the quality of chitosan and paraffin wax with 0.2 times the quality of chitosan, at a temperature of 60 °C and a rotating speed of 300r / min. After stirring and mixing for 40 minutes, the chitosan mixture was obtained. The chitosan mixture and the glutaraldehyde solution with a mass fraction of 20% were mixed at a mass ratio of 10:2, and the temperature was 65°C and the rotational speed was 320...

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Abstract

The invention discloses a preparation method of long-acting phosphorus removal filler, and belongs to the technical field of water treatment materials. A modified magnetic chitosan microsphere dispersion solution and an oil phase mixture are mixed in a mass ratio of 2:1-3:1 in a stirrer, 2%-10% by mass of a calcium chloride solution which is 0.01-0.02 times mass of the modified magnetic chitosan microsphere dispersion solution is added to the stirrer, a mixed solution is subjected to a stirring reaction for 1-2 h at the temperature of 30-50 DEG C and at revolving speed of 300-320 r / min and then is filtered, a modified magnetic chitosan microsphere blank is obtained and dried for 1-2 h at the temperature of 60-80 DEG C, and modified magnetic chitosan microspheres are obtained, that is, thelong-acting phosphorus removal filler is obtained. The long-acting phosphorus removal filler prepared according to the technical scheme has the characteristics of excellent phosphorus removal efficiency and long service cycle and has broad prospects in development of the technological industry of water treatment materials.

Description

technical field [0001] The invention discloses a preparation method of a long-acting phosphorus removal filler, which belongs to the technical field of water treatment materials. Background technique [0002] Phosphorus removal refers to the removal of phosphorus in sewage. Phosphorus in sewage has the property of mutual circulation and transformation between solid form and dissolved form, and the phosphorus removal in sewage is developed based on this property of phosphorus. Sewage phosphorus removal technology includes: chemical phosphorus removal method that makes phosphorus become insoluble solid sediment and separated from sewage; makes phosphorus ingested by microorganisms in a dissolved state, integrates with microorganisms, and is separated from sewage with microorganisms Biological Phosphorus Removal. According to the different ways of phosphorus in wastewater, different phosphorus removal techniques should be adopted. Phosphorus in sewage mainly comes from phosp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/58C02F101/10
CPCC02F1/286C02F1/288C02F1/58C02F2101/105
Inventor 钱兴
Owner 钱兴
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