A new advanced treatment and reuse process of textile dyeing and finishing wastewater

Abstract

The invention discloses a novel textile dyeing and finishing waste water deep treatment and recycling method, and belongs to the field of novel textile dyeing and finishing waste water deep treatment and recycling technology. An apparatus of the novel textile dyeing and finishing waste water deep treatment and recycling method is mainly composed of a middle water pond, a Fenton fluidized bed, a degassing neutralization pond, a coagulation pond, a settling pond, an immobilized biological activated carbon bed, a reverse osmosis membrane component, a recycling water pond, and the like. According to the novel textile dyeing and finishing waste water deep treatment and recycling method, the Fenton fluidized bed, the immobilized biological activated carbon bed, and the reverse osmosis membrane component are combined for deep treatment and recycling of textile dyeing and finishing waste water, and problems of existing textile dyeing and finishing waste water deep treatment technology, that cost is high, technology operation is unstable, treatment effect is undesirable, and environmental demands are not satisfied, are solved. The novel textile dyeing and finishing waste water deep treatment and recycling method is suitable for deep treatment of textile dyeing and finishing waste water, is capable of realizing deep treatment of waste water effectively, COD of obtained water is less than 50mg / l, environmental demands are satisfied, waste water recycling rate is more than 70%, operation management is convenient, technology is stable, and cost is low.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular to a process method for advanced treatment and reuse of textile dyeing and finishing wastewater, and belongs to the technical field of wastewater treatment technology. Background technique [0002] The pollution of textile dyeing and finishing wastewater is quite prominent in the textile dyeing and finishing industry. Textile dyeing and finishing wastewater not only has a complex composition of pollutants, large changes in water quality, and deep color, but also has a large amount of water and is difficult to treat. General physical, chemical and biochemical methods are difficult to work, and are seriously harmful to receiving water bodies. According to the survey on the current status of textile dyeing and finishing wastewater treatment in the country, the traditional secondary treatment and some improved biochemical treatments, due to the presence of organic dyes and auxiliaries th...

AI Technical Summary

Problems solved by technology

This invention fails to make full use of biochemical treatment to reduce the load of Fenton-like fluidized bed; the photocatalytic efficiency of chromatic wastewater is low, and the effluent after coagulation and precipitation has poor reliability and stability of chromaticity and SS indicators. There are problems such as immature technology and high cost

[0007] Therefore, the existing textile dyeing and finishing wastewater advanced treatment and recycling processes generally have problems such as large investment, unstable process operation, unsatisfactory treatment effect, and failure to meet environmental protection requirements.

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