1. Waste and unoxygenated bacteria are the primary reason for failure of traditional septic systems. When large colonies of these anaerobic bacteria migrate from the septic tank to the disposal field they produce a mucus-like layer of slime, or biomat, which clogs the pores of the soil so air...
  2. Decentralised wastewater treatment systems – DEWATS In contrast to Europe and North America where 95% of urban areas have conventional and centralised wastewater treatment systems, there are many countries where wastewater treatment systems are inadequate or do not even exist. Building a...