Technical characteristics and development trend of different stages of wastewater biological treatment process
For more than 100 years,with the rapid development of hμman society and science and technology,sewage biochemical treatment technology is also achieving rapid development and continuous iteration,new processes and new reactors,new functional microorganisms and new bio-chemical metabolism pathways are constantly proposed,discovered and analyzed,and further pro-mote the progress and upgrade of sewage treatment technology.The development history of wastewater biochemical treatment technology in the past hundred years was reviewed,and the"S curve"representing the intergenerational technical characteristics and technological development period of different biochemical treatment processes was given in combination with different techno-logical maturity and case applications,and the future technological trend of wastewater treatment development was summarized from the aspects of process strengthening,green,low carbon and in-tensive and efficient.This paper analyzes the technical principles and characteristics of some inno-vative wastewater biochemical treatment processes in recent years,and analyzes the efficiency and technical advantages combined with practical cases,in order to provide reference for the quality and efficiency improvement of drainage system under the"carbon dioxide emission and carbon neutrali-ty"and the process design and operation of domestic wastewater plants in the future.