PATENT

Landfill leachate ammonia nitrogen removal membrane assembly and landfill leachate ammonia nitrogen removal method

Chain type heat exchanger tube

Disc type heat exchange tube coil machine

Distributed wastewater treatment and reuse system in northern rural area

Multi-stage dissolved gas system and sewage treatment system

The waste incinerator and the feeding mechanism used therein

Membrane filaments for ammonia nitrogen removal from landfill leachate

Ammonia nitrogen removal device for landfill leachate