Application of snail sludge dewatering machine in printing and dyeing wastewater

- Nov 14, 2020-

The stacking sludge dewatering machine in the printing and dyeing industry waste treatment mainly includes the dyes, slurries, dyeing auxiliaries, and fiber impurities contained in the wastewater. These components are more complicated and the discharge volume is relatively large, the PH value is high, and the pH is high. In terms of material treatment, the decontamination performance of the snail sludge dewatering machine is very good for the following difficult-to-degrade organisms, which is recognized as one of the main harmful wastewaters that are the most difficult to treat.

The snail sludge dewatering machine actually has many performance advantages when treating printing and dyeing wastewater. For example, the snail sludge dewatering machine can not only get a very good result in sewage treatment, but also its cost is relatively low. With a series of outstanding advantages, the snail sludge dewatering machine can become an important choice for us when processing industrial wastewater.

The snail sludge dehydrator mainly uses coagulation method to treat sewage when it treats sewage. The screw stacking machine that has been developed and produced has been widely used in the printing and dyeing industry. The screw stacking machine has now shown strong advantages and effects in the printing and dyeing industry.

The technical advantages of the screw stacking sludge dewatering machine are mainly: the screw stacking machine will be equipped with a proprietary rotary disc pre-concentration device, which can be better at processing low concentration and grease-containing sludge, and can also improve the existing gravity type The disadvantage of thickening is that the emergence of screw stacking machine can integrate the high-efficiency thickening, flocculation and thickening of low-concentration sludge, and can also adjust the incoming sludge concentration to an optimal dehydration state. The screw stacker uses a movable and fixed ring to replace the traditional filter cloth, so there will be no clogging, and it is more convenient for some oily sludge treatment.

The printing and dyeing industry is a typical high water consumption industry that consumes nearly 100 million tons of process softened water every year. The source and pollutant composition of printing and dyeing wastewater are very complex, with the characteristics of large changes in water quality, high content of organic matter, and high chroma (mainly colored dyes). Direct discharge brings great harm to human health and living environment, and also causes water resources. waste. With the increasing attention of the country and society to environmental protection requirements and the requirements for sustainable development, traditional processing methods have become increasingly difficult to meet the requirements of production and environmental protection.

The printing and dyeing wastewater mainly contains dyes, slurries, dyeing auxiliaries and fiber impurities, oils, acids, alkalis and inorganic salts, etc., with complex components and large emissions, high chroma, high alkalinity, high pH, and biodegradable substances Many and varied, it is recognized as one of the most difficult to treat the main hazardous wastewater. Coagulation treatment of printing and dyeing wastewater has the advantages of good treatment effect and low cost, so it has become an important means of treating industrial wastewater.