Chapter 14 Flashcards
What are 3 natural recourses, their use and alterative synthetic product?
- wool = clothes + carpets, acrylic fibre
- cotton = clothes + textiles , polyester
- silk = clothes, nylon
What is a finite resource?
a non-renewable resource
What is the difference between a finite resource and a renewable resource?
finite resources come in limited supplies where as renewable resources are replenished naturally over relatively short periods of time
What is sustainable development?
its improving our quality of life without damaging the quality of life for future generations by, development that is conducted without depletion of natural resources
What is potable water?
water that is safe to drink
What is waste water?
water that has been used in a home or business or part of an industrial process
What is the process of sewage treatment?
sewage arrives - pumping station - primary sedimentation(- sludge digestion - fertilizer+solid fuel - generate electricity) - biological treatment - secondary sedimentation(- sludge digestion - etc…)(or) - cl2/o3/UV (water can be disinfected/sterilized at this point) - effluent
What does LCA stand for?
life cycle assessment
what are the stages of a LCA?
raw material - manufacture/packaging/distribution -use/reuse/maintenance - recycle/waste management
What are the 2 input of the LCA?
- raw materials
- energy
What are the 4 outputs of the LCA?
- atmospheric emissions
- waterborne wastes
- solid wastes
- coproducts
