High-load underground infiltration sewage treatment system

High-load underground infiltration sewage treatment 

composite system

1. Technical principle:

High-load underground infiltration sewage treatment

system

The high-load underground infiltration system is 

composed of multiple different "functional-structural 

layers". Each layer adopts a specific filter material

formula according to its function. 

The system is equipped with multiple sets of horizontal

and vertically distributed pipe network systems to control

the migration of water and air. The unique operation mode 

of the system can effectively control the migration of 

pollutants and the zoning of microbial communities, and 

create a high-quality growth environment for microorganisms. 

The system is inoculated with efficient microbial strains

with specific functions, which further enhances the 

decomposition and transformation capabilities of pollutants.

2. Process flow introduction

The sewage first passes through the sedimentation tank to

remove the silt, then undergo acidification and hydrolysis

in the anaerobic tank to increase the biodegradability of 

the pollutants, and then enter the regulating tank for treatment. 

The sewage is intermittently pumped into the high-load underground

infiltration system for aerobic treatment and deep treatment, 

so that the sewage meets the discharge standards.

The core part of this process is the "high-load underground 

infiltration system". When the sewage moves laterally and 

infiltrates downward in the filter materials of different 

"functional-structural layers", the filter materials intercept

and adsorb pollutants in the sewage through their physical

and chemical properties. The microorganisms attached to the

surface of the filter materials use the intermittent oxygen-rich

air to decompose organic matter and convert ammonia nitrogen.