Environmental Plants >> Business Areas >> Environmental Plants >> Waste Treatment Facilities Waste Treatment Facilities Resource Recovery - Halla is at the Center of it! Halla Energy & Environment, the company concentrating its efforts on human beings and the future value of the environment   Municipal Solid Waste Incineration Plant Sludge Incineration Facility (fluidized bed type) Organic Waste Recycling Facility (MBT)Mechanical Biological Treatment Pneumatic Refuse Collection System   Pangyo City Clean Net Waste is thrown into a hopper and transported through pipes using air vacuum and pressure to collection areas. Then the waste is separated and crushed or pressed so it can be easily transported to the 2nd stage or final stage treatment facility. This is an environment friendly technology that is excellent for use in downtown areas. waste collection area refuse charging hopper