In search for the most sustainable techniques, biotrickling filter (BTF) were developed to remove odorous smell without the use of chemicals. In the BTF, the required conditions (moisture, nutrients, …) are created to allow bacteria to grow on the media inside the vessel. The biotrickling technique is mainly developed to remove H2S and VOC from sewage applications. In case of hydrogen sulphide which is the major component to be removed from foul air from a sewage network, the autotrophic bacteria will oxidize H2S into sulphuric acid which is drained to the network. The VOC components will be oxidized by heterotrophic bacteria (upstream in the BTF), present at a higher pH.
The proper design and selection of the correct media will result in a low pressure drop and less energy consumption. To moisten the bacteria and to drain the sulphuric acid, TSE (treated secondary effluent) can be used. This water may still contain some nutrients (NPK) which is beneficial for the bacteria culture in the biotrickling filter. If potable water is supplied, additional nutrients can be dosed through a dosing system.
Features
- Wastewater treatment plants for hydrogen sulphide and odour control
- Pumping stations for odour control
- Rendering plants for odour control
- Pulp & Paper plants for odour control
- VOCs (volatile organic compounds)
- Food processing plants for odour control
- Lower operating costs
- Compact footprint
- No hidden operating costs
- Extensible
- Corrosion resistant construction
- Lower scrubber shell serves as integral sump for recirculating liquid supply
- Standard accessories including access doors, spray headers, piping connections, nozzles, internal structure supports, packing plates and hold-down lugs.
- Circulation pump can be mounted on side of scrubber to minimise footprint
- Nutrient dosing & storage componentry are optionally included
- No complex controlling instrumentation. ph monitored only
- The biotrickling technique is mainly developed to remove H2S and VOC from sewage applications. In case of hydrogen sulphide which is the major component to be removed from foul air from a sewage network, the autotrophic bacteria will oxidize H2S into sulphuric acid which is drained to the network. The VOC components will be oxidized by heterotrophic bacteria (upstream in the BTF), present at a higher pH
- The proper design and selection of the correct media will result in a low pressure drop and less energy consumption. To moisten the bacteria and to drain the sulphuric acid, TSE (treated secondary effluent) can be used. This water may still contain some nutrients (NPK) which is beneficial for the bacteria culture in the biotrickling filter. If potable water is supplied, additional nutrients can be dosed through a dosing system
