Compound flocculant with polymerization ferric chloride and amination polymers based on papermaking sludge and method for preparing compound flocculant

A technology of polyferric chloride and composite flocculant, applied in chemical instruments and methods, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. The problems of narrow range and high operating cost can achieve good coagulation effect, reduce slow stirring and sedimentation time, and high coagulation efficiency.
CN105565459AActive Publication Date: 2016-05-11SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2016-05-11

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Abstract

The invention relates to a compound flocculant with polymerization ferric chloride and amination polymers based on papermaking sludge and a method for preparing the compound flocculant. The method includes synthesizing amination polymers from the papermaking sludge generated in the papermaking industry; compounding the amination polymers and the inorganic flocculant polymerization ferric chloride to prepare the compound flocculant with the polymerization ferric chloride and the amination polymers based on the papermaking sludge. The compound flocculant and the method have the advantages that the color removal rate of disperse yellow water samples can reach 95% at least when the compound flocculant is used for treating the simulated dye water samples and the dosing quantity of the compound flocculant is 5 mg / L, excellent flocculation effects can be realized by the compound flocculant for water samples under different acidity and alkalinity conditions and other diversified water samples, the capital construction cost of reaction tanks and sedimentation tanks can be reduced, and the compound flocculant is high in electricity performance and flocculation efficiency, good in dissolving property, long in storage cycle and applicable to the field of water supply, wastewater treatment and the like and suitable for actual application to water treatment.
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Description

technical field

[0001] The invention relates to a polyferric chloride-papermaking sludge-based aminated polymer composite flocculant and a preparation method thereof, belonging to the technical field of waste resource utilization and water treatment flocculants. Background technique

[0002] Coagulation sedimentation method is a commonly used water treatment and water purification technology at home and abroad. It is an economical and simple water quality treatment method that is generally used to improve treatment efficiency. The innovative development of water treatment technology, the reduction of operating costs and the improvement of water purification quality depend to a large extent on the performance of coagulants. Common coagulants mainly include aluminum salts and iron salts, but aluminum-based coagulants have been proved to have residual aluminum neurotoxicity problems in use, while iron salts have low toxicity and can improve biological treatment of activated slu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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