Preparation method for biochemical compound phosphor-removing agent

A compound phosphorus removal agent and phosphorus removal technology, which is applied in chemical instruments and methods, anaerobic digestion treatment, biological water/sewage treatment, etc. Effect

Inactive Publication Date: 2017-12-12
郭迎庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is that the most commonly used chemical phosphorus removal method cannot remove organic phosphorus, while the combined biochemical phosphorus removal method needs to add two reagents step by step, and the operation is complicated. The preparation method of phosphorus removal agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] Mix diatomaceous earth and fly ash according to the mass ratio of 2:1, put them into a ball mill and grind for 20 minutes, and discharge the mixed powder to obtain a mixed powder, soak the mixed powder with a concentration of 0.5mol / L citric acid solution for 1 hour, take it out, and use it immediately Spray and freeze with liquid nitrogen for 1 minute, put it in an oven after freezing, and dry at 105°C for 1 hour to obtain a pretreated mixed powder; heat the peach gum to 100°C to melt it, and then add peach gum to the melted peach gum The sodium peroxide powder of quality 50%, returns to room temperature naturally after stirring for 10min, makes peach gum solidify again, obtains peach gum to coat sodium peroxide powder; It is 5:1:4 to mix the standby pretreatment powder and Mix construction steel slag and water to obtain a mixture, then add 3% of the mixture mass of sodium silicate powder and 5% of the mixture mass of peach gum-coated sodium peroxide powder, heat to 90°...

example 2

[0028]Mix diatomaceous earth and fly ash according to the mass ratio of 2:1, put them into a ball mill and grind for 25 minutes, discharge the material to obtain mixed powder, soak the mixed powder with 0.5mol / L citric acid solution for 1 hour, take it out, and use it immediately Spray and freeze with liquid nitrogen for 2 minutes, put it in an oven after freezing, and dry at 108°C for 2 hours to obtain a pretreated mixed powder; heat the peach gum to 105°C to melt it, and then add peach gum to the melted peach gum The sodium peroxide powder of quality 50%, returns to room temperature naturally after stirring for 13min, makes peach gum solidify again, obtains peach gum to coat sodium peroxide powder; It is 5:1:4 by mass ratio that standby pretreatment mixed powder and Mix construction steel slag and water to obtain a mixture, then add 3-5% sodium silicate powder and 6% peach gum-coated sodium peroxide powder to the mixture, heat up to 95°C, stir and mix for 2 minutes to obtain ...

example 3

[0030] Mix diatomaceous earth and fly ash according to the mass ratio of 2:1 and put them into a ball mill to grind for 30 minutes, and discharge the mixed powder to obtain a mixed powder, soak the mixed powder with a concentration of 0.5mol / L citric acid solution for 2 hours, take it out, and use it immediately Spray and freeze with liquid nitrogen for 2 minutes, put it in an oven after freezing, and dry at 110°C for 2 hours to obtain a pretreated mixed powder; heat the peach gum to 110°C to melt it, and then add peach gum to the melted peach gum The sodium peroxide powder of quality 50%, returns to room temperature naturally after stirring for 15min, makes peach gum solidify again, obtains peach gum to coat sodium peroxide powder; It is 5:1:4 to mix the standby pretreatment powder and Mix construction steel slag and water to obtain a mixture, then add 5% of the mixture mass of sodium silicate powder and 7% of the mixture mass of peach gum-coated sodium peroxide powder, heat t...

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Abstract

The invention relates to the technical field of wastewater treating agent and specifically relates to a preparation method for a biochemical compound phosphor-removing agent. The phosphor-removing agent provided by the invention firstly utilizes the fixed phosphor-removing microorganism to perform nitrating decomposition on the organic phosphorus or metaphophate in wastewater; a part of phosphor is absorbed by the microorganism so as to change into microorganism sludge; the rest phosphor is decomposed to be converted into ortho-phosphate micromolecules; under the effect of the fixed microorganism, the chelated iron ions and magnesium ions are released again; these released iron ions and magnesium ions and the metallic oxide under free state cooperate with each other for replacing the medium/low-valence phosphate positive ions in the wastewater; most phosphate anions are captured into alumen ustum sediment of alkali phosphate compound clathrate through a bridging absorbing net; the introduced building steel slag can be hydrolyzed into the hydroxy polynuclear complex high in positive charge in water; various phosphate anions are subjected to complexing adsorption phosphorous removal; finally, the formed precipitate is removed, so that the phosphor-removing purpose can be achieved; the phosphor-removing agent has wide application prospect.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment agents, in particular to a preparation method of a biochemical composite phosphorus removal agent. Background technique [0002] Phosphorus is a key nutrient that causes water eutrophication. In order to prevent eutrophication of water bodies, it is necessary to carry out phosphorus removal treatment on sewage discharged into rivers and lakes. At present, phosphorus removal methods mainly include chemical methods, biological methods, and combined chemical and biological methods. Among the chemical methods, the adsorption method has attracted widespread attention because of its high-efficiency and rapid phosphorus removal, easy operation and recovery, and no secondary pollution. [0003] Chemical phosphorus removal can only remove inorganic phosphorus, and the effect on organic phosphorus or polyphosphoric acid is often poor, while biological phosphorus removal is just the opposite a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/28C12N11/14
CPCC02F3/28C02F3/34C02F2101/105C02F2101/30C12N11/14
Inventor 郭迎庆林茂兰
Owner 郭迎庆
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