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Application of multi-phase and multi-functional polymerized ferrotitanium composite agent to treatment of low-temperature and low-turbidity secondary biochemical effluent

A technology of secondary biochemical effluent and polymerized ferrotitanium is applied in the application of polymerized ferrotitanium composite agent in the treatment of low temperature and low turbidity secondary biochemical effluent. Achieve the effect of saving energy, good effect and simple process

Inactive Publication Date: 2015-11-18
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these water treatment agents contain titanium elements, they are all single-phase compositions, and the water treatment effect is relatively simple. Multifunctional titanium-containing water treatment agents are necessary

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The polymerized ferro-titanium composite agent in this example is composed of waste acid press cake, synthetic potassium permanganate powder, powdered activated carbon, and sodium polyacrylate, and the mass percentages of each component are 75.8%, 23%, and 1.2%.

[0040] Wherein said waste acid press filter cake and potassium permanganate synthetic powder, its preparation method is as follows:

[0041] First, under the condition of stirring speed of 200~300 rpm and temperature of 35~40℃, mix 5Kg of waste acid press cake with 6.5L of water to obtain a viscous white emulsion. Raise to 90~100°C, add 2.5L of sulfuric acid solution with a mass fraction of 90% to the above viscous white emulsion for leaching, leaching for 0.5 hours, filter to obtain the filtrate; then stir at a stirring speed of 600~ Under the condition of 800 rpm and room temperature, add 3.2L of 17mol / L sodium hydroxide solution to the above-mentioned filtrate, adjust the pH value to 4, and obtain a mixed s...

Embodiment 2

[0047] The polymerized ferro-titanium composite agent of this embodiment is composed of waste acid press filter cake, potassium permanganate synthetic powder, powdered activated carbon, and sodium polyacrylate, wherein the mass percentages of each component are 75.8%, 23%, and 1.2%;

[0048] Wherein said waste acid press filter cake and potassium permanganate synthetic powder, its preparation method is as follows:

[0049] First, under the condition of stirring speed of 200~300 rpm and temperature of 35~40℃, mix 5Kg of waste acid press cake with 5L of water to obtain a viscous white emulsion, raise the temperature To 90~100℃, add 2.5L of sulfuric acid solution with a mass fraction of 90% to the above viscous white emulsion for leaching, leaching for 1 hour, filter to obtain the filtrate; then stir at a stirring speed of 600~800 Under the conditions of rpm and room temperature, add 2.3L of 17mol / L sodium hydroxide solution to the above filtrate, adjust the pH value to 2.5, and ...

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Abstract

The invention belongs to the technical field of water treatment and provides an application of a multi-phase and multi-functional polymerized ferrotitanium composite agent to treatment of low-temperature and low-turbidity secondary biochemical effluent. The composite agent comprises components as follows: 73%-94.5% of waste acid filter-pressed cake and potassium permanganate synthetic powder, 4.5%-26% of powdered activated carbon and 0.5%-1.5% of sodium polyacrylate. The application of the composite agent comprises steps as follows: firstly, a polymerized ferrotitanium composite agent is prepared from the components used as raw materials; then the agent is directed added in the solid form, and the coagulating sedimentation process is as follows: stirring is performed at the speed of 300 r / min for 20 s, then stirring is performed at speeds of 70 r / min, 50 r / min and 30 r / min for 3 min, 4 min and 8 min respectively, and sedimentation is performed for 15 min. The relative content of the components in the composite agent can be changed for different water quality, effective components are optimized, the dosage is small, and the cost is saved. The production process is under the normal pressure and the technology is simple and easy to implement. The composite agent can be applied to fields of low-temperature and low-turbidity water, the low-temperature and low-turbidity secondary biochemical effluent and the like.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and relates to a multi-phase and multifunctional compound agent, in particular to the application of a polymerized ferro-titanium compound agent in treating low-temperature, low-turbidity secondary biochemical effluent water. Background technique [0002] In winter, the secondary biochemical effluent of some industrial wastewater has the characteristics of low particle concentration and low turbidity, and may also have the characteristics of high chroma. If tertiary treatment or advanced treatment is required, it is similar to the characteristics of low temperature and low turbidity water. Some are similar, such as the secondary biochemical effluent of dye wastewater. Low-temperature and low-turbidity water is a kind of water that is difficult to treat. It has the characteristics of high viscosity, small particle size and uniform distribution, slow flocculation reaction, and alum flowers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/72C02F1/28B01J20/26
Inventor 付英付旻舸王景芝陆宁宁
Owner UNIV OF JINAN