Study on Printing and Dyeing Wastewater Treatment by Vertical Flow Labyrinth (VFL) Process

The wastewater generated from the printing and dyeing industry is characterized by a substantial presence of both organic and inorganic pollutants. If the wastewater cannot be effectively treated, its direct discharge will cause environmental hazards. Biotechnology is currently a commonly used low-cost, environmentally friendly treatment method that can reduce secondary pollution and sludge production without complex equipment. Researchers compared the effectiveness of vertical flow maze VFL process with traditional A2/O process in treating wastewater, and carried out experiments and monitoring for five months. After analyzing the data with SPSS software, the effects of the two processing methods are discussed. These studies provide important reference for improving and perfecting the wastewater treatment system.