Dewatering of waste streams

Sewage plants, abattoirs, the agricultural sector (fertilizer traces), waste streams from paper and cardboard industry, food industry, oil-, gas- and chemical industry – numerous companies and organizations produce liquid waste streams of an organic nature. Although they differ in composition and volume, all these liquid organic waste streams can be processed in the future easily at Providentia, without the need for prior dewatering, at competitive prices and in an environmentally friendly manner.

The new Providentia reactor will have a capacity of more than 600,000 mł organic waste streams per year. The patented processes result in a big reduction of volume which only leaves a residue of 4% dry solids. The residues can easily by be transported to a landfill company or an other outlet.

Waste breakdown by wet oxidation process

Wet oxidation is a high effective technique for the extraction of organic substances from waste streams:

Every kilo of liquid waste that goes into the reactor has ±4.8% of dry solids;

Every kilo of dry solids has ±65% of organic components;

The oxidation process in the reactor breaks down the organic components;

When the ash cake leaves the wet oxidation process there is hardly organic material left. The residue is inert and can be disposed in landfills;

Ash cake consists approximately of 45% water and 55% ash;

Water is treated in an internal purification system and is poured back into the Water Board basins;

For every 100 trucks delivering liquid waste to the plant, only 3 are needed to dispose the ash cakes.