Waste Treatment Plants are environmental buildings in Tropico 5. They reduce pollution in the surrounding area based on their effectiveness.
Expensive Material Recycling: (Modern Times) For $6,000, the waste treatment plant can recycle rare metals and other valuable materials, increasing the effectiveness of nearby Construction Offices, Steel Mills, Vehicle Factories, and Electronics Factories by 20.
1 Waste Treatment Plant (100% effectiveness) can negate the negative effect of 2 Factory Farms. Placing less Factory Farms can improve the location for plantations again.