Dear Temple Oraiki, A  ...

Dear Temple Oraiki,

A  Biodigester  simply means a tank which digests organic material biologically. In this sense, the  FilterPod  is a biodigester.A specially engineered container called the bio-digester ensures effective treatment of bio-waste.Waste decomposition takes place in stages of electrolysis, acidogenesis, acetogenesis & methan

However, many people think of a  biodigester  as a tank which digests, anaerobically, without air, organic material and produces methane gas for cooking, lighting and heating ect.

The composition of the gases produced by this type of biodigester is about 60% Methane, 30% Carbon Dioxide and the rest is Hydrogen Sulphide

Treating human waste through Anaerobic Digestion is an incredibly ethical sanitation technology. Anaerobic Digestion occurs in bio digesters and produces a fuel (biogas), removes Biochemical Oxygen Demand (BOD) from sewage, conserves nutrients (especially nitrogen compounds) and most importantly reduces pathogens. Excessive concentrations of human waste damages the environment, because it is loaded with BOD, nutrients, and anthropozoonotic diseases.

Post treatment and sterilization

Biodigester effluent may also be treated in a secondary treatment phase such as Ultrafiltration, Ultraviolet Light (UV), a Treatment Wetland, Composting, or Aerobic Treatment. Ultra filtration consists of running the effluent through a membrane that only allows solubles to pass through. At the moment this technology is more likely to be used in the developed world but appropriate solutions using materials such as mangroves and other plants might be used. Ultrafiltration is practical for concentrated wastewaters that have had most solids settled out. UV treatment is a common water treatment technology however may only be practical for dilute effluents where turbidity is not an issue.

Regards,

Prem Baboo