Treatment device and control method for printing and dyeing wastewater

Abstract

A treatment device for printing and dyeing wastewater and a control method thereof, the buffer filter of the treatment device comprises a cuboid base and a cylinder body of the buffer filter, and the lower end of the outer wall of the cylinder body of the buffer filter is equidistantly arranged with A rectangular parallelepiped connecting piece, a vertical buffer device is connected between the connecting piece and the rectangular parallelepiped base, and a drainage hole for discharging the filtered printing and dyeing waste water is provided at the lower end of one side wall of the cylinder body of the buffer filter. It effectively avoids the complicated structure of the buffer filter used in the sampling detection device in the printing and dyeing wastewater treatment system in the prior art, which makes it difficult to replace or maintain the buffer filter, the filtration cycle of the buffer filter is large, the performance is poor, and the operator is required to operate. It is cumbersome and time-consuming, the buffering performance of the buffer filter is worse when the weather is cold, the socket of the output end of the socket sampling inlet pipe and the socket of the joint is damaged, the connected closed wall is often damaged, and the socket is damaged. There are often seam defects in the joints.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment device for printing and dyeing wastewater and a control method thereof. Background technique [0002] Wastewater discharged from printing and dyeing, wool dyeing and finishing and silk factories mainly processing cotton, hemp, chemical fiber and their blended products, and silk. The type of fiber and processing technology are different, and the water quantity and quality of printing and dyeing wastewater are also different. Among them, the amount of wastewater in printing and dyeing factories is relatively large, and 1 ton of textiles for printing and dyeing consumes 100-200 tons of water, of which 80% to 90% are discharged as wastewater. Printing and dyeing wastewater has the characteristics of large water volume, high content of organic pollutants, high alkalinity, and large changes in water quality. It is one of the most difficult industrial wastewate...

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Problems solved by technology

[0008] In order to solve the above problems, the present invention provides a treatment device for printing and dyeing wastewater and its control method, which effectively avoids the complexity of the buffer filter structure used in the sampling and detection device in the printing and dyeing wastewater treatment system in the prior art, which makes replacement or maintenance The buffer filter is difficult, the filter cycle of the buffer filter is long, the performance is not good, the operation is cumbersome and time-consuming for the operator, the buffer performance of the buffer filter is worse when it is cold, and the output end of the socket sampling inlet pipe is connected to the The socket equipment of the joint has socket damage, the connected closing wall is often damaged, and there are often gaps in the socket.

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