Wastewater biological treatment methods originated in the early 20th century and have evolved into the primary means of treating urban industrial wastewater worldwide. However, issues such as low treatment efficiency have arisen during the application of traditional wastewater biological treatment methods. Relevant departments should research and develop new wastewater biological treatment methods and apply them to wastewater treatment. The following article provides a detailed analysis of the application of several new wastewater biological treatment methods in sewage treatment.

1. Industrial wastewater treatment

The treatment of industrial wastewater can be achieved by combining aerobic aeration with the use of microbial organic flocculants. By integrating the primary wastewater treated by aerobic aeration with microbial organic flocculants, the pollutants attached to the microorganisms can be effectively sedimented, enhancing the removal rate of wastewater and reducing the likelihood of secondary pollution. This method effectively improves the removal rate and processing efficiency of high-turbidity water, significantly increasing the utilization rate of water resources.

2. Treating wastewater containing metal ions with biomembrane technology

The biofilm method can be employed to treat wastewater containing metal ions. A biofilm is a biological mixture composed of cellular biomass and extracellular polymers, which effectively removes heavy metal ions by utilizing the extracellular polymers in the biofilm process, significantly enhancing the treatment efficiency of metal ion wastewater. Due to its operational stability and ease of management, the biofilm method is increasingly being adopted for the treatment of metal ion wastewater, effectively improving the wastewater treatment rate.

3. Utilizing immobilized microbial technology to treat pollutants in wastewater

Utilizing immobilized microbial technology to treat pollutants in wastewater. Due to the high ammonia-nitrogen content in wastewater pollutants, this immobilized microbial treatment technology significantly enhances the deammonification effect of pollutants in wastewater, accelerating the treatment speed of pollutants in wastewater.