* Application of industrial food processing wastewater / industrial chemical wastewater.

* Removal of H2S by oxidising soluble sulphides in a highly effective and environmentally acceptable manner.

* BFL 5700SO can be used in conjunction with BFL 5000 series products for multi-problems treatment at the same time for a specific application (once-through solutions) in a system depending on the nature of the wastewater being produced. Remember the rule of Golden ratios of BFL products.

* Microbes work under aerobic conditions and as  facultative anaerobes.

 

Odour control is a major concern in the operation of many municipal and industrial wastewater treatment plants.  Foul odours are a public nuisance and give rise to unfavourable publicity.  Environmental legislation is becoming stricter all the time especially in relation to odours / air emissions released adjacent to sensitive areas such as housing, recreation parks, schools, etc.

 

The blackening of wastewater and sludge usually results from the formation of H₂S which in turn combines with the iron present to produce ferrous sulphide - which produces a noxious odour when disturbed e.g. when pumping wastewater from storage lagoons or when wasting and thickening sludge.

 

H₂S released to the atmosphere above the wastewater in sewers not flowing to full capacity tends to accumulate at the crown of the pipe.  H₂S can be oxidised to produce sulphuric acid that will attack both cast-iron and concrete sewage pipes - this corrosion can be severe enough to cause collapse.

H₂S is toxic to nitrifying bacteria.  These bacteria are highly sensitive and if H₂S is present even at low concentrations the nitrifying biomass can be wiped out.  The result is lost nitrification, increased levels of ammonia in the final effluent, possibility of fish kills if final effluent is discharged to a sensitive river as well as heavy fines if discharge licence is exceeded.