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Organic macromolecular flocculating agent for polymer-bearing sewage and preparation method for organic macromolecular flocculating agent

An organic polymer, sewage treatment technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of subsequent process and adverse environmental impact, large on-site environmental impact, large amount of sludge, etc., to achieve high-efficiency water purification effect and cost. Inexpensive, less flocculent effect

Active Publication Date: 2015-11-18
E TECH ENERGY TECH DEV CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the large dosage of the commonly used polymer-containing sewage treatment agents, the amount of sludge produced is large, which is greatly affected by the on-site environment and has certain adverse effects on the subsequent process and the environment.

Method used

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  • Organic macromolecular flocculating agent for polymer-bearing sewage and preparation method for organic macromolecular flocculating agent
  • Organic macromolecular flocculating agent for polymer-bearing sewage and preparation method for organic macromolecular flocculating agent
  • Organic macromolecular flocculating agent for polymer-bearing sewage and preparation method for organic macromolecular flocculating agent

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Each raw material component is selected according to mass percentage: polyaluminum chloride is 30%, and the mass of nonionic polyacrylamide is 5% of the mass of polyaluminum chloride; The mass ratio is 1:2; use absolute ethanol and distilled water to prepare a polyaluminum chloride solution with a mass percent concentration of 40% at room temperature (the volume ratio of distilled water to absolute ethanol is 3:1), and put it into a four-hole container with a stirrer. In the bottle, heat up to 50°C, add a certain amount of non-ionic polyacrylamide; fully stir at constant temperature for 20 minutes to fully dissolve; then use a separatory funnel to slowly add polydimethyldiallylammonium chloride dropwise, and Raise the temperature to 65°C, the polymerization reaction occurs, and control the temperature, the dropwise addition is completed within 3 hours; then raise the temperature to 80°C, add an appropriate amount of dilute sulfuric acid dropwise to adjust the pH value to...

Embodiment 2

[0026] Select each raw material component according to mass percentage: polyaluminum chloride is 35%, and the mass of nonionic polyacrylamide is 5% of polyaluminum chloride mass; Polydimethyl diallyl ammonium chloride and polyaluminum chloride The mass ratio is 1:3; use absolute ethanol and distilled water to prepare a polyaluminum chloride solution with a mass percent concentration of 40% at room temperature (the volume ratio of distilled water to absolute ethanol is 3:1), and put it into a four-hole container with a stirrer. In the bottle, heat up to 50°C, add a certain amount of non-ionic polyacrylamide; fully stir at constant temperature for 20 minutes to fully dissolve; then use a separatory funnel to slowly add polydimethyldiallylammonium chloride dropwise, and Raise the temperature to 65°C, the polymerization reaction occurs, and control the temperature, the dropwise addition is completed within 3 hours; then raise the temperature to 80°C, add an appropriate amount of di...

Embodiment 3

[0034] Select each raw material component according to mass percentage: polyaluminum chloride is 35%, and the mass of nonionic polyacrylamide is 5% of polyaluminum chloride mass; Polydimethyl diallyl ammonium chloride and polyaluminum chloride The mass ratio is 2:3; use absolute ethanol and distilled water to prepare a polyaluminum chloride solution with a mass percent concentration of 40% at room temperature (the volume ratio of distilled water to absolute ethanol is 3:1), and put it into a four-hole container with a stirrer. In the bottle, heat up to 50°C, add a certain amount of non-ionic polyacrylamide; fully stir at constant temperature for 20 minutes to fully dissolve; then use a separatory funnel to slowly add polydimethyldiallylammonium chloride dropwise, and Raise the temperature to 65°C, the polymerization reaction occurs, and control the temperature, the dropwise addition is completed within 3 hours; then raise the temperature to 80°C, add an appropriate amount of di...

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Abstract

The invention discloses an organic macromolecular flocculating agent for polymer-bearing sewage and a preparation method for the organic macromolecular flocculating agent. Before a mixing reaction, the organic macromolecular flocculating agent comprises the following components in percentage by mass: 30-40 percent of polymeric aluminum, wherein the mass of non-ion polyacrylamide is 5 percent of the mass of polymeric aluminum; the mass ratio of poly diallyldimethylammonium chloride to the polymeric aluminum is 1-2: 2-3. After a polymerization reaction, the weak cation type organic macromolecular flocculating agent can be obtained; an extremely good flocculating effect is achieved, and organic impurities and emulsified oil in polymer-bearing crude oil wastewater can be effectively removed; furthermore, a small quantity of produced floccules are produced, and the form is stable; the organic macromolecular flocculating agent is prepared by a compounding method and has the advantages of simple technology, readily available raw material, good water purification effect, low cost, small use amount and the like, and has no toxic and side effects.

Description

technical field [0001] The invention relates to the technical field of offshore oil recovery, in particular to an organic polymer flocculant for treating poly-containing sewage and a preparation method thereof. Background technique [0002] With the continuous development of the offshore oil industry, polymer flooding technology has begun to be applied on a large scale offshore. This technology can greatly increase the recovery rate and thus obtain higher economic benefits. However, the addition of polymers also brings a series of problems to the subsequent production and sewage treatment. Due to the existence of polyacrylamide, the oil-water mixing system of the produced fluid has changed, which is manifested by the increase in the viscosity of the produced fluid. The oil droplets in the sewage become smaller and the ability of the oil droplets to coalesce with each other decreases, resulting in an enhanced degree of emulsification of the produced fluid, an increase in susp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/52
Inventor 康玉彬
Owner E TECH ENERGY TECH DEV CORP
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