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Microemulsion liquid membrane chemical and treating method thereof applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater

A technology of radioactive wastewater and microemulsion, which is applied in radioactive purification, chemical instruments and methods, water/sewage treatment, etc., can solve the problems of increasing the difficulty of liquid membrane application research and development, affecting the application of liquid membrane treatment technology, etc., to achieve processing speedy effect

Active Publication Date: 2012-10-31
CHANGSHA RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as far as most of the liquid membrane treatment processes developed so far are concerned, it is difficult to have these three properties at the same time, which increases the difficulty of liquid membrane application research and development, especially affecting the liquid membrane treatment process in heavy metal wastewater. and radioactive wastewater

Method used

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  • Microemulsion liquid membrane chemical and treating method thereof applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater
  • Microemulsion liquid membrane chemical and treating method thereof applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater

Examples

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Effect test

Embodiment 1

[0035] A kind of microemulsion membrane medicament that can be used for treating waste water or cleaning polluted soil sample of the present invention, comprises membrane phase and internal water phase, and membrane phase is formulated by the component of following volume fraction:

[0036] Industrial kerosene (or diesel) 42% to 60%,

[0037] Support film agent 3%,

[0038] Carrier substance 6% and

[0039] water balance;

[0040] The volume ratio of the membrane phase and the internal water phase (that is, the commonly referred to as the oil-to-internal ratio) is 1:1 (1: (0.5-2) is acceptable).

[0041] The supporting membrane agent selected in this example is N-butoxypolyoxyethylene polyoxypropylene glycol, N-(1.2-dicarboxyethyl)-N octadecylsulfosuccinamic acid tetrasodium salt, hydroxyethylethylene One of disodium diamine diacetate, octylphenoloxy polyoxyethylene ether alcohol, polyethyleneimine, and polyisopropyleneimine or a combination of any two of them.

[0042] Th...

Embodiment 2

[0044] Embodiment 2: Treatment of copper-containing wastewater.

[0045] A kind of microemulsion membrane medicament that can be used for treating copper-containing wastewater or cleaning polluted soil sample of the present invention, comprises membrane phase and internal water phase, and membrane phase is formulated by the component of following volume fraction:

[0046] Industrial kerosene 60%,

[0047] N-Butoxypolyoxyethylene Polyoxypropylene Glycol 3%,

[0048] Polyethyleneimine 5%,

[0049] 2-Hydroxy-5-nonylsalicylaldoxime (N902) 5% and

[0050] water balance;

[0051] The volume ratio of the membrane phase and the internal water phase (that is, the commonly referred to as the oil-to-internal ratio) is 1:1; the internal water phase selected in this example is 2moI / L H 2 SO 4 .

[0052] a kind of like figure 2 The method that the microemulsion film agent of the present embodiment is used to process the copper-containing wastewater of a pollution control plant may...

Embodiment 3

[0059] Embodiment 3: Treatment of ammonia nitrogen-containing wastewater.

[0060] A microemulsion membrane medicament for treating ammonia nitrogen-containing wastewater of the present invention comprises a membrane phase and an internal water phase, and the membrane phase is formulated from the following components by volume fraction:

[0061] Industrial diesel 60%,

[0062] N-(1.2-Dicarboxyethyl)-N-octadecylsulfosuccinamic acid tetrasodium salt 4%,

[0063] Polyisopropyleneimine 6%,

[0064] Diisooctyl Phosphate (P204) 8% and

[0065] water balance;

[0066] The volume ratio of the membrane phase and the internal water phase (that is, the commonly referred to as the oil-to-internal ratio) is 1:1; the internal water phase selected in this example is 2moI / L H 2 SO 4 .

[0067] A kind of method that uses the microemulsion membrane medicament of the present embodiment to process the method for ammoniacal nitrogen-containing waste water of certain sewage treatment plant,...

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Abstract

The invention discloses a microemulsion liquid membrane chemical applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater. The microemulsion liquid membrane chemical comprises a membrane phase and an internal water phase, the membrane phase is mainly composed of an organic solvent, a support film agent, a carrier substance and water, and the volume ratio between the membrane phase and the internal water phase is 1:(0.5-2). A method for treating waste water by the microemulsion liquid membrane chemical includes the following steps of firstly using the membrane phase and the internal water phase to prepare a W / O type emulsion, then adding the W / O type emulsion in an extract tower to perform a waste water treatment, transferring a mixed liquor obtained from the treatment to a liquid separating tower to perform still standing and layering, subjecting layered oil phase to a subsequent high pressure electrostatic emulsion breaking, releasing pollutants from an emulsion dispersed phase to form an organic phase and a pollutant containing solution, recycling the organic phase, and subjecting the pollutant containing solution to a recovery processing. The microemulsion liquid membrane chemical and the treating method thereof applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater have the advantages that the equipment investment is small, the land occupation is small, processing capabilities are high, the cost is low, the secondary pollution is absent, the fluidized processing and all-way automatic control can be achieved, and the like.

Description

technical field [0001] The invention relates to a treatment agent for pollutants and a treatment process thereof, in particular to a treatment agent and a treatment process for treating pollutants using liquid membrane separation technology. Background technique [0002] Liquid membrane (Liquid Membrane) as a separation technology has been extensively studied since the 1960s. In the past half century, liquid membrane separation technology has been developed rapidly in the world. As a new separation, purification and concentration method, liquid membrane separation technology has the characteristics of low energy consumption, high separation effect, no secondary pollution, and simple process compared with traditional separation operations. It is widely used in water treatment, biochemical industry, food industry, papermaking Industry, pharmaceutical industry and other fields have been widely used. At present, environmental problems are becoming more and more serious. The tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/26C02F1/44C02F1/58C02F1/62B01D61/40B01D71/06C02F9/02G21F9/06B09C1/08
Inventor 肖国光余侃萍杨国超肖焱曾娟
Owner CHANGSHA RES INST OF MINING & METALLURGY
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