Nanofiber foam based device for continuous treatment of dye wastewater and preparation method of device

Abstract

The invention provides a nanofiber foam based device for continuous treatment of dye wastewater and a preparation method of the device. The nanofiber foam based device for continuous treatment of dye wastewater is characterized by comprising a protective mesh enclosure, wherein super-hydrophilic nanofiber foam is arranged in the protective mesh enclosure; a water collecting capillary network is distributed in the super-hydrophilic nanofiber foam and connected with a main water pipe; the main water pipe is connected with a water pump; the water pump is connected with a water storage tank. The nanofiber foam based device for continuous treatment of dye wastewater has the advantages of simple preparation process, low production cost, convenience in operations, high expandability, and realization of high-efficiency continuous separation and purification treatment on the dye wastewater; the purified water is relatively high in cleanliness; the nanofiber foam based device has wide application prospect in the fields of the treatment of printing and dyeing wastewater and dye processing wastewater, and the like.

Description

technical field [0001] The invention belongs to the field of dye wastewater treatment, and in particular relates to a nanofiber foam-based dye wastewater continuous treatment device capable of realizing continuous dye wastewater treatment and a preparation method thereof. Background technique [0002] my country is a big country in the textile industry and has a huge demand for dyestuffs. The production capacity and consumption of dyestuffs in my country rank among the top in the world. However, organic dye synthesis, printing and dyeing and other industrial wastewater contains a large amount of toxic substances, which will cause serious harm to the environment and directly threaten human health after entering the water body. According to reports, 60,000 tons of dyes are directly discharged into environmental water bodies in the form of waste every year in the world. These dye wastewater often contain a variety of organic dyes and intermediates, with high concentration, larg...

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Problems solved by technology

The dye wastewater treatment methods provided by the above-mentioned patents directly add gelatinous, granular or fibrous adsorbents to the dye wastewater for adsorption treatment, but additional means are required to separate the adsorbent from the water in the future, which cannot achieve continuous treatment. And this process is very easy to cause secondary pollution due to incomplete separation of adsorbents. The dye wastewater treatment process is complicated, resulting in low work efficiency and high energy consumption, which is difficult to meet the current application requirements for large-scale dye wastewater treatment.

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