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Rapid flocculant

A flocculant and fast technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of strong neurotoxicity, carcinogenicity, destruction of water biological chain, slow flocculation and sedimentation speed, etc., to promote flocculation effect, improve flocculation effect, The effect of enhancing the flocculation effect

Inactive Publication Date: 2014-04-23
江声
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the current disadvantages of slow flocculation and sedimentation and high drug consumption
Polymer flocculants such as basic polyaluminum chloride (PAC), polyaluminum sulfate, polyferric sulfate, etc. overcome the disadvantages of low processing efficiency of low molecular flocculants. Poor processing effect
Organic flocculants are generally polymers, such as polyamine flocculants, quaternary ammonium starch-based flocculants, and polyacrylamide flocculants. Among them, polyacrylamide has the advantages of less dosage, strong ability to clarify water quality, and fast flocculation speed. It is not easily affected by the pH value of water, and the amount of sludge generated is less, which has been widely used. However, polyacrylamide has strong neurotoxicity and certain carcinogenicity. When a large amount of polyacrylamide is used to treat wastewater, it will produce polymer residues. , destroying the biological chain of the water body, thereby affecting human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A fast flocculant, which consists of the following components: 1wt%-10wt% of ferrate; 20wt%-50wt% of polyaluminum calcium chloride; 10wt%-40wt% of aluminum-containing compounds and / or calcium-containing compounds; 5wt%-25wt% ferric chloride; 1wt%-20wt% polyacrylamide; 5wt%-15wt% molecular resonance powder; 0.1wt%-0.01wt% initiator; 10wt%-15wt% water.

[0054] Molecular resonance powder is made by vacuum stirring 10%-50% carbon, 20%-60% carbon, 5%-25% dolomite and 5%-25% calcium carbide, and the mixed raw materials after stirring Made into granules, placed in an oxygen-free furnace and fired at a temperature of 1100°C-1250°C for 8-12 hours. Ferrates are sodium ferrate or potassium ferrate. The ferrate is prepared by heating and reacting peroxide salt and ferrous sulfate hydrate, and crystallizing the obtained reaction product to prepare the ferrate. The polyaluminum calcium chloride is prepared according to the following method: aluminum sulfate and calcium carbonate a...

Embodiment 2

[0056] A fast flocculant consisting of the following components: 5wt% ferrate; 15wt% polyaluminum calcium chloride; 20wt% aluminum-containing compounds and / or calcium-containing compounds; 10wt% ferric chloride; 15wt% Polyacrylamide; 10wt% molecular resonance powder; 0.6wt% initiator; 10wt% water.

Embodiment 3

[0058] A fast flocculant, which is composed of the following components: 1wt%-10wt% ferrate; 20wt%-50wt% polyaluminum calcium chloride; 5wt%-35wt% aluminum-containing compound; Calcium compound; 5wt%-25wt% ferric chloride; 1wt%-20wt% polyacrylamide; 5wt%-15wt% molecular resonance powder; 0.1wt%-0.01wt% initiator; 10wt%-15wt% water.

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PUM

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Abstract

The invention discloses rapid flocculant. The flocculant consists of the following components: 1-10 wt% of ferrate, 20-50 wt% of polyaluminum chloride calcium, 10-40 wt% of aluminum-contained compound and / or calcium-contained compound, 5-25 wt% of ferric chloride, 1-20 wt% of polyacrylamide, 5-15 wt% of molecular resonance powder, 0.01-0.1 wt% of initiator, and 10-15 wt% of water. The rapid flocculant has the advantages of short flocculent precipitation time, good effect and low cost, improves the hydrone active emulsifying ability, degrades the harmful substances and heavy metals of water, and obtains excellent active water.

Description

technical field [0001] The invention relates to a flocculant, in particular to an S fast flocculant used in water treatment. Background technique [0002] Water coagulation treatment is one of the key links in wastewater treatment, which can remove turbidity and pollution, and reduce the pollution load of subsequent sewage treatment. The flocculant is the key factor to determine the effect of coagulation treatment, and has an important impact on the operation status of the subsequent process, the final effluent water quality and cost. According to its chemical composition, flocculants can be generally divided into two types: inorganic flocculants and organic flocculants. Inorganic flocculants include inorganic coagulants and inorganic polymer flocculants; organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. The flocculant is mainly a group with positive (negative) charge and some particles or part...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56
Inventor 江声
Owner 江声