Question: What waste do you use? Poo?

Keith Beattie answered on 11 Mar 2013:

waste in this context can include animal poo as we have a large number of rats and mice on site and the bedding material (containing waste products) has to be removed from site and treated appropriately. However the majority of waste is non-hazardous recyclable materials (much as you have at home (plastics, paper, card) and also hazardous waste including solvents, low level radioactive materials, and clinical waste from laboratories. All this material has to be disposed of so that it cause no harm to the environment.