EFFICIENT WASTEWATER TREATMENT
- in biotechnology for biological wastewater treatment
- as a filter in drinking water plants
- as an adsorbent for treating leachate and industrial wastewater
HIGH-QUALITY FILTER MATERIAL
SIMPLE AND SAFE TO USE
PLENTIFUL, SECURE SUPPLY
HOK® ACTIVATED LIGNITE – A FRESH, NON-REGENERATED SORBENT
PRODUCTION, SALES AND LOGISITCS ALL IN ONE PLACE
KNOW-HOW AND ADVICE
ADSORPTIVE WASTEWATER TREATMENT
For processes using suspension techniques, stirred-tank reactors are used, and are set up as single or multi-level countercurrent cascades as required. The advantages of using the suspension technique include a large mass transfer and – thanks to the cascade – the ability to load the activated lignite with large quantities of harmful substances plus continuous plant operation.
In the fixed-bed option, which can be based on biological or adsorptive processes or on a combination of both by varying ventilation, the water to be treated flows through a solid HOK® Activated Lignite bed. If the water level is lowered below the HOK® Activated Lignite surface, the free HOK® Activated Lignite on the top captures odorants by adsorption. Targeted backwashing ensures that the filter will achieve a long service life and that the HOK® Activated Lignite is loaded with sufficient quantities of harmful substances.