Why Treatment of Biosolids?

1. Treatment of biosolids by composting or biodrying result in fast
   drying of the material and ensures a safe hygienisation.
2. Valuable plant nutrients are not wasted and the compost created is
   homogeneous and suitable for storage. The lower moisture content
   and volume mean that the cost of transportiation to the plant is
   reduced considerably.
3. Compost made of sewage sludge is a stabilised organic fertilizer
   with an average nutrient content which can release the contained
   nutrients evenly and has a positive influence on the humus balance.
   Crops fertilised with compost are more healthy then that fertilised
   with chemical fertiliser and underground water is not polluted.
4. Dried sewage sludge is a pourable substitute fuel with a low to
   medium fuel value, that is used in power plants and cement factories.

Why a BACKHUS Turner?

When composting sewage sludge, the BACKHUS turner ensures:

• fast drying
• safe hygienisation
• optimal rotting process

BACKHUS turners are known and valued all around the world.
BACKHUS stands for superior quality and cost-effectiveness.

Together with their customers, BACKHUS EcoEngineers develop concepts for facilities and machines to ensure the practical and sustainable treatment of waste.

Facts:

• To protect our drinking water from pollution by sewage, more and more municipalities buield waste water treatment plants (WWTP)
• The main residue from the WWTP is sewage sludge (biosolids) which can be used as a fertilizer in agriculture or as a fuel in power plants.
• Direct application on farmland is only possible between crop seasons and direct use as a fuel is not efficient due to the high moisture conetnt of the biosolids.
• The storage of biosolids requires a lot of space due to high moisture content and can create enviromental pollution if stored on non sealed surfaces.