Composite water quality agglutination purifying agent and preparation method thereof

A composite, purifying agent technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. The problem of slow hydrolysis speed of flocculant can achieve the effect of improving long-term treatment effect, increasing stability and fast sedimentation speed.

Active Publication Date: 2021-11-12
唐山洁达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum salt flocculants include polyaluminum chloride (PAC), polyaluminum sulfate (PAS), polyaluminum phosphate (PAP), etc., and iron salt flocculants include polyferric phosphate (PFP), PFC (polyferric chloride), polysulfuric acid Iron (PFS), etc., but the aluminum salt and iron salt flocculants have certain restrictions on water temperature, pH value, high oil, high salt, high emulsification, high chroma, etc. For example, when the water temperature is low, the flocculant The hydrolysis speed is slow and incomplete. Even if the input amount of flocculant is incr

Method used

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  • Composite water quality agglutination purifying agent and preparation method thereof
  • Composite water quality agglutination purifying agent and preparation method thereof
  • Composite water quality agglutination purifying agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0061] Preparation Example 1: (1) Mix 8Kg starch with 1.5Kg oxidant, after mixing evenly, under the action of 400W microwave, heat at 60°C for 7min, adjust the pH value to 8, add 1Kg carboxymethyl cellulose and 0.1Kg Sodium tetraborate, defoaming after stirring evenly, the oxidizing agent is the potassium permanganate that weight percent concentration is 1%;

[0062] (2) Mix 1.1Kg of sodium bentonite and 2Kg of distilled water to make a suspension, heat to 80°C, add 0.5Kg of glycerin, keep stirring for 30 minutes, then add 2.5Kg of PVA, keep stirring for 1 hour, centrifuge, dry and grind;

[0063] (3) Mix the product of step (1) with the product of step (2), add 0.5Kg initiator and 5Kg distilled water, heat up to 45°C, keep stirring for 4h, and dry at 50°C. The initiator is ammonium persulfate.

preparation example 2

[0064] Preparation Example 2: (1) Mix 10Kg starch with 2Kg oxidizing agent, after mixing evenly, under the action of 400W microwave, heat at 75°C for 3min, adjust the pH value to 10, add 1.5Kg carboxymethyl cellulose and 0.3Kg Sodium tetraborate, defoaming after stirring evenly, oxidizing agent is the hydrogen peroxide that weight percent concentration is 30%;

[0065] (2) Mix 1.5Kg of sodium bentonite and 3Kg of distilled water to make a suspension, heat to 90°C, add 1Kg of glycerol, keep stirring for 40min, then add 3Kg of PVA, keep stirring for 2h, centrifuge, dry and grind;

[0066] (3) Mix the product of step (1) with the product of step (2), add 1Kg initiator and 7Kg distilled water, heat up to 60°C, keep stirring for 3h, and dry at 60°C. The initiator is ammonium persulfate.

preparation example 3

[0067] Preparation Example 3: The difference from Preparation Example 1 is that the product of step (2) is not added in step (3).

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Abstract

The invention relates to the field of sewage treatment, and particularly discloses a composite water quality agglutination purifying agent and a preparation method thereof. The composite water quality agglutination purifying agent is prepared from the following components in parts by weight: 550 to 600 parts of calcined silica, 30 to 70 parts of rare earth porcelain sand, 20 to 65 parts of white mica, 90 to 120 parts of polyaluminum chloride, 15 to 50 parts of serpentine and 15 to 45 parts of polyacrylamide. The preparation method comprises the following steps: respectively crushing the muscovite, the serpentine and the rare earth porcelain sand, mixing, adding water accounting for 10-15% of the total weight of the muscovite, the serpentine and the rare earth porcelain sand, carrying out ball milling, drying and sieving, adding the calcined silica, the polyacrylamide and the polyaluminum chloride, and uniformly mixing. The composite water quality agglutination purifying agent has the advantages of being not affected by water temperature, suitable for both hot areas and severe cold areas, wide in applicable water quality range, high in removal rate of COD, TN, TP and the like, and capable of achieving the immediate and long-acting removal effect on algae.

Description

technical field [0001] The application relates to the technical field of sewage treatment, more specifically, it relates to a composite water coagulation purifying agent and a preparation method thereof. Background technique [0002] In recent years, with the continuous increase of my country's population and the rapid development of industrial and agricultural production, water demand has increased rapidly, and water pollution has become more and more serious. Water pollution is one of the most serious and harmful pollutions in the world today. In the sewage treatment process, coagulation and flocculation processes are indispensable and important units. There are many types of flocculants for water treatment. At present, the flocculation of industrial wastewater in my country Agents are mainly divided into three categories: organic polymer flocculants, inorganic flocculants and microbial flocculants. [0003] The most widely used is the inorganic flocculant, the inorganic f...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5236C02F1/56
Inventor 陈颖
Owner 唐山洁达环保科技有限公司
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