Precise dephosphorization nanomaterial and preparation method thereof and conventional power integrated sewage treatment equipment

A technology of sewage treatment equipment and nanomaterials, applied in the field of water treatment, can solve problems such as low removal efficiency and heavy metal pollution, and achieve the effects of eliminating the risk of point source eutrophication, high mechanical strength, and long sludge discharge cycle.

Active Publication Date: 2017-02-22
格丰环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It aims at the current situation that the removal efficiency of COD, ammonia nitrogen and total nitrogen in rural domestic sewage and urban sewage is not high, especially for heavy metals, nitrogen and phosphorus pollutants in sewage, and improves the removal effect to solve the problems of eutrophication of receiving water and heavy metal pollution in soil. Greatly improve the transparency of effluent, provide a solution to avoid the adverse effects of sludge bulking, and greatly reduce the production of excess sludge and treatment costs

Method used

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  • Precise dephosphorization nanomaterial and preparation method thereof and conventional power integrated sewage treatment equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] 1) 35 parts of montmorillonite, 45 parts of bentonite and 20 parts of activated clay are put into a high-speed mixer and mixed to obtain a dry blend, wherein the fineness of montmorillonite is below 5 microns and the purity is 98 % or more; the fineness of bentonite is below 10 microns, and the purity is above 95%; the fineness of activated clay is below 8 microns, and the purity is above 95%;

[0062] 2) Wet mix 20% calcium acetate solution with the dry mixture obtained in step 1) according to the mass ratio of 0.3:1, and then mud mix after wet mixing, and the mud mixing time is 25 minutes to obtain mud block;

[0063] 3) extrude the mud block obtained in step 2) into granules, and the particle diameter of the granules is 8 millimeters;

[0064] 4) drying the particles obtained in step 3) in a drying kiln to obtain a dry molded product with a moisture content lower than 8%;

[0065] 5) The dried molded product obtained in step 4) is heated up to a firing temperature o...

Embodiment 2

[0067] 1) Put 20 parts of montmorillonite, 60 parts of bentonite and 10 parts of activated clay into a high-speed mixer and mix to obtain a dry blend, wherein the fineness of montmorillonite is below 5 microns and the purity is 98 % or more; the fineness of bentonite is below 10 microns, and the purity is above 95%; the fineness of activated clay is below 8 microns, and the purity is above 95%;

[0068] 2) 22% calcium acetate solution and the dry mixture obtained in step 1) were wet-mixed according to a mass ratio of 0.2:1, and after the wet-mixing, the mud was mixed for 30 minutes to obtain mud blocks;

[0069] 3) Extrude the mud block obtained in step 2) into granules, and the particle diameter of the granules is 3 millimeters;

[0070] 4) drying the particles obtained in step 3) in a drying kiln to obtain a dry molded product with a moisture content lower than 8%;

[0071] 5) The dried molded product obtained in step 4) is heated to a firing temperature of 700° C. for 1.5 ...

Embodiment 3

[0073] 1) Put 50 parts of montmorillonite, 30 parts of bentonite and 30 parts of activated clay into a high-speed mixer and mix to obtain a dry mixture, wherein the fineness of montmorillonite is below 5 microns and the purity is 98 % or more; the fineness of bentonite is below 10 microns, and the purity is above 95%; the fineness of activated clay is below 8 microns, and the purity is above 95%;

[0074] 2) Wet mix 18% calcium acetate solution with the dry mixture obtained in step 1) according to the mass ratio of 0.4:1, and then mud mix after wet mixing for 20 minutes to obtain mud block;

[0075] 3) extrude the mud block obtained in step 2) into granules, and the particle diameter of the granules is 12 millimeters;

[0076] 4) drying the particles obtained in step 3) in a drying kiln to obtain a dry molded product with a moisture content lower than 8%;

[0077] 5) The dried molded product obtained in step 4) is heated to a firing temperature of 700° C. for 1.5 hours and fi...

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Abstract

The invention belongs to the technical field of water treatment, and particularly relates to a precise dephosphorization nanomaterial and a preparation method thereof and conventional power integrated sewage treatment equipment. The material is prepared from 20-50 parts of montmorillonite, 30-60 parts of bentonite and 10-30 parts of activated clay through dry mixing, pugging, firing and the like. The conventional power integrated sewage treatment equipment comprises an anoxic zone, an aerobic zone, a membrane pool zone, an equipment zone and a precise dephosphorization zone which sequentially communicate with one another; a carrier is arranged in the middle of the anoxic zone, a multifunctional nanocomposite material is carried in the carrier, a carrying box is arranged in the precise dephosphorization zone, and multiple layers of precise dephosphorization nanoparticles are arranged in the carrying box. According to the conventional power integrated sewage treatment system, the removal efficiencies of pollution factors such as COD, ammonia nitrogen, total nitrogen, total phosphorus, heavy metals and SS of incoming water can be obviously improved and are higher than or equal to 95%, 97%, 97%, 97%, 98% and 99% respectively, and the effluent indexes are superior to the national first grade A standard.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a precision phosphorus removal nanometer material, its preparation method and conventional power integrated sewage treatment equipment. Background technique [0002] In recent years, with the development of my country's township economy, the concentration and total discharge of domestic sewage pollutants in townships have increased year by year, especially the excessive discharge of nutrient-rich elements nitrogen and phosphorus has caused the ecological environment of township water to become worse and worse; due to the high dispersion of township sewage , Water quality and water volume are highly variable, and it is difficult to collect and treat them centrally. The treatment is difficult, and it has attracted more and more attention. At the same time, with the increasing living standards of urban residents in our country, the water quality of urban sewage is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/20B01J20/30C02F1/28C02F1/58C02F9/14
CPCB01J20/12B01J20/20C02F1/281C02F3/1268C02F3/30C02F9/00C02F2101/20C02F2301/08
Inventor 奉向东耿亮宁小飞袁勇向阳
Owner 格丰环保科技有限公司
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