APPLIANCE

•   Discharged air
•   Sterilisation
•   Wastewater

Waste management industry

Huge germ-charged and H₂S-contaminated exhaust air streams are generated in waste management industry. The capability of biofilters reaches the limit and thermal treatement is bound to very high operational expenses due the huge discharged air volumen.

FLO-K plants feature two essential advantages:

• Exhaust air is almost completely free of germs, up to 99,9 %.
• Low operational expenses: an average exhaust air stream of 20.000 m³/h can be made odourless at the cost of approx. 10 Euro/h, including operational and maintenance costs.
• Sulphur smell is reducted below odour threshold.

Areas of appliance:
Sewage treatment plants
Livestock processing
Refood/processing of leftovers
Waste-reloading points

Sewage treatment plants
Conventional methods destined to eliminate H₂S-charged exhaust air in sewage treatment plants consist of a two-stage oxidative gas scrubber, based upon the Fresenius S-KT technique. This leads to a considerable efford not only when handling required chemical agents, but also during the instalation of the scrubber and pumps. In addition, a large workspace is required.

FLO-K plants with a connected cataliser is a reliable alternative to reduce the partially high H₂S load below odour threshold. The generated ozone provoke a permanent regeneration of the downstream catalytic converter. Therefore replacing the cataliser content is required less often.

The purifying effect reaches 90-99,9 %, depending on the requirements. Additionally, sterilisation of the discharged air (up to 99.9%) is achieved. An automatic cleaning unit (CIP-unit) avoids the fouling of the special lamps. A gas detector can be optionally attached.

Typical fields of appliance in sewage plants:

• Odour on the outlet of decomposition tanks
• olfactory harassment at the clarifier
• Unpleasant odours and H₂S-contaminated closed rooms (e.g. sludge processing areas)
• corrosion on switch cabinets and electronic components
• H₂S in pumping stations

Livestock processing
Processing of meat and bones to meal normally leads to a considerable olfactory harassment in the adjacencies. Biofilters hardly can cope with the heavily organically loaded exhaust air, specially due frequently load variation. Chemical scrubbers involve high operational costs, environmental hazard and lack of efficiency.

FLO-K plants prove to be a highly-efficient, economic and environment-friendly alternative. Up to 99,9 % of all odours and germs found in the discharged air are eliminated.

Refood/processing of leftovers
Processing leftovers remaining in gastronomy leads to a strong olfactory harassment in the sorroundings of the respective sites. A FLO-K plant with an included downstream catalyser provides an noticeable improvement of the hygenic conditions at this point. A 99,9 % sterilisation of the exhaust air and the purified compartment air assure proper labour conditions.

A present expert's report elaborated by a certified olfactometrical institute exemplary proves the effectiveness of the FLO-K plant via olfactory measurements.

Waste-reloading points
On waste-reloading points huge air masses of highly fluctuating organic load need to be eliminated permanently and as cost-efficient as possible. Traditional exhaust air purifying methods usually involve important spatial requirements and high operational and maintainance expenses, respectively.

oxytec's FLO-K plants exhibit, besides low spatial requirements and efficient odour reduction capabilities, significant advantages:

• Up to 99,9 % germfree streaming exhaust air.
• A maximum value of 500 GE on chimney's aperture is achieved, matching regulations by law.
• Low operational and maintenance costs: Low operational expenses: an average exhaust air stream of 20.000 m³/h can be treated at the cost of approx. 10 Euro/h, including operational and maintenance costs.