Chromatographic treatment method of industrial wastewater containing paranitroaniline
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A technology for p-nitroaniline and industrial wastewater, applied in multi-stage water treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as unsatisfactory treatment effects, and achieve the best treatment technology Effect
Inactive Publication Date: 2017-02-22
赵佳
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[0004] The present invention aims to solve the problem of unsatisfactory treatment effect on industrial wastewater containing p-nitroaniline in the prior art, and provides a chromatography treatment method for industrial wastewater containing p-nitroaniline, which can well treat the industrial wastewater containing p-nitroaniline Aniline industrial wastewater
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Embodiment 1
[0016] A chromatographic treatment method containing p-nitroaniline industrial wastewater, comprising the following process steps:
[0017] A. Accurately measure D141 macroporous resin, D145 macroporous resin and D160 macroporous resin, transfer them to three chromatographic columns, wash with alcohol until the effluent does not produce white turbidity in water; Ionized water washes the alcohol in the macroporous resin in the chromatography column;
[0018] B, p-nitroaniline waste water is carried out pretreatment, filters, and clear filtrate is obtained, standby; With the flow rate of 60ml / h, make p-nitroaniline waste water pass through the chromatographic column that connects together respectively; After waste water passes through, use Ionized water washes away the residual p-nitroaniline wastewater in the chromatography column; elutes the p-nitroaniline adsorbed by the resin in the three resin chromatography columns with alcohol;
[0019] C, collecting the effluent; concen...
Embodiment 2
[0021] In step A, each of the D141 type macroporous adsorption resin, the D145 type macroporous adsorption resin and the D160 macroporous adsorption resin was 20 ml.
[0022] In step B, the p-nitroaniline wastewater is 1200ml.
[0023] In step B, the alcohol is 80% alcohol.
Embodiment 3
[0025] In step A, each of the D141 type macroporous adsorption resin, the D145 type macroporous adsorption resin and the D160 macroporous adsorption resin was 20 ml.
[0026] In step B, the p-nitroaniline wastewater is 1200ml.
[0027] In step B, the alcohol is 85% alcohol.
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Abstract
The invention relates to a chromatographic treatment method of industrial wastewater containing paranitroaniline and belongs to the technical field of industrial wastewater treatment. According to the invention, a multi-performance macroporous adsorption resin combination chromatographic method is adopted, thereby effectively adsorb paranitroaniline in wastewater, paranitroaniline in wastewater can be effectively eliminated and recycled. According to the characteristics of wastewater containing paranitroaniline mother liquid and the molecular dimension and the physicochemical property of paranitroaniline molecules, a nonpolar macroporous adsorption resin D-141, a moderately polar macroporous adsorption resin D-145 and a strongly polar macroporous adsorption resin D-160 are combined to treat the wastewater, thereby obtaining a relatively good treatment process technology.
Description
technical field [0001] The invention relates to a treatment method of industrial wastewater, more specifically, the invention relates to a chromatographic treatment method of industrial wastewater containing p-nitroaniline, which belongs to the technical field of industrial wastewater treatment. Background technique [0002] p-Nitroaniline is an important chemical raw material, also known as ice-dyed dye scarlet GG color base, mainly used as an azo dye intermediate, and also used as an analytical reagent, a pharmaceutical intermediate, and a synthetic dye black salt K . It is more toxic than aniline, can cause blood poisoning, damage the liver, and suffer from skin eczema and dermatitis. Macroporous resin adsorption chromatography has been successfully industrialized in the treatment of some high-concentration, high-salt content, and difficult-to-biochemically-treated toxic organic wastewater, and has achieved the unity of environmental and economic benefits. [0003] The ...
Claims
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Application Information
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