HAASE Environmental Consulting GmbH (HEC) is a consulting company for:

• Mechanical-Biological Waste Treatment (MBT)
• Biowaste Treatment (BT)
• Food waste Treatment (FT)
• Agricultural Biogas Plants (BGP)
• other recycling technologies, in particular recycling of plastic material resulting from municipal solid waste (MSW)
• Landfill technology including landfill gas utilisation and leachate treatment