Hollow fiber ultrafiltration system for printing and dyeing wastewater treatment

Abstract

The invention discloses a hollow fiber ultrafiltration system for printing and dyeing wastewater treatment, and relates to the technical field of printing and dyeing wastewater treatment, in particular to a hollow fiber ultrafiltration system for printing and dyeing wastewater treatment. The system comprises a purification box, and a stock solution collection box is arranged at the bottom of the inner cavity of the purification box. According to the hollow fiber ultrafiltration system for printing and dyeing wastewater treatment, printing and dyeing wastewater is guided to the surface of a belt through a wastewater tank, the wastewater leaks into a collecting hopper from water leakage holes and is collected into an inner cavity of the stock solution collecting box through the collecting hopper, and meanwhile waste residues in the wastewater move forwards along with the belt; and waste residues on the surface of the belt are swept into an inner cavity of a waste residue collecting box through a rotating sweeping roller, and the waste residues which are not cleaned up on the surface of the belt are scraped into the inner cavity of the waste residue collecting box through a scraping plate, so that the function of filtering the waste residues and fibers in the printing and dyeing wastewater is achieved. The stability of the hollow fiber ultrafiltration system for treating the printing and dyeing wastewater is improved.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing wastewater treatment, in particular to a hollow fiber ultrafiltration system for printing and dyeing wastewater treatment. Background technique [0002] When printing and dyeing cotton, hemp, chemical fiber and its blended products, silk and other textiles, a large amount of wastewater will be generated. The direct discharge of wastewater to the outdoors will pollute the environment. Therefore, it needs to be treated before the discharge of printing and dyeing wastewater, of which over Filtration technology is a relatively mature filtration technology. Hollow fiber ultrafiltration membrane is a kind of ultrafiltration membrane. The hollow fiber tube wall is covered with micropores. The pore size can intercept substances with relatively large molecular weight. It is an ideal method to use hollow fiber ultrafiltration membrane to treat printing and dyeing wastewater, but the traditional ...

AI Technical Summary

Problems solved by technology

[0002] When printing and dyeing cotton, hemp, chemical fiber and its blended products, silk and other textiles, a large amount of wastewater will be generated. The direct discharge of wastewater to the outdoors will pollute the environment. Therefore, it needs to be treated before the discharge of printing and dyeing wastewater, of which over Filtration technology is a relatively mature filtration technology. Hollow fiber ultrafiltration membrane is a kind of ultrafiltration membrane. The hollow fiber tube wall is covered with micropores. The pore size can intercept substances with relatively large molecular weight. It is an ideal method to use hollow fiber ultrafiltration membrane to treat printing and dyeing wastewater, but the traditional hollow fiber ultrafiltration membrane system does not perform primary filtration on printing and dyeing wastewater, and printing and dyeing wastewater will be mixed with If there is waste residue such as fluff, entering the hollow fiber ultrafiltration membrane will cause the clogging of the hollow fiber ultrafiltration system. In addition, the existing hollow fiber ultrafiltration membrane system does not have equipment for cleaning the hollow fiber ultrafiltration membrane inside. A large amount of stains accumulated on the hollow fiber ultrafiltration membrane will affect the filtration quality and efficiency of the hollow fiber ultrafiltration membrane system, so we propose a hollow fiber ultrafiltration system for printing and dyeing wastewater treatment

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