In the Newater plant, 3 main multiple barriers are used for microbial and chemical contaminant removal.

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In the Newater plant, 3 main multiple barriers are used for microbial and chemical contaminant removal.

  1.  For each of the barrier, what type of contaminants are removed?
    2. How is the Newater treatment process considered an excellent example of Industrial Ecology?
    3. To qualify as an industrial ecosystem, at least three (3) industrial manufacturers must exchange at least 2 different materials among themselves. Give an example of an industrial ecosystem, describing the 3 types of manufacturers and at least 2 types of materials that they would exchange among themselves.

The table summarizes the results of the environmental assessment of 3 alternative house designs.
(a) Which material do you consider the most environmentally friendly?
(b) If you only consider the impact on solid waste generation, would your answer is given in part
(c) Be the same? Explain your answer.

 

  1. ) How would you design environmental features in the new building to meet the building construction authority(BCA) Green mark? Select 4 important features and explain your answer.
  2. Singapore’s per capita domestic water consumption was reduced from 165 litres per day in 2003 to the current consumption of 151 litres. In the sustainable Singapore Blueprint 2045, the target is to lower it to 147 litres per day by 2020 and 140 litres by 2030. How do you propose to achieve this ambitious target by 2030?
  3. Industrial Ecology(IE) and sustainable engineering(SE) principle are relatively advanced in developed economies, such as the USA and Eurpoe. What are the challenges of implementing(IE) and SE principles in developing countries in Asia?
  4. In the LCA case study of the colour computer monitor, explain each of the following terms and indicate why it’s important (a). Hotspots and (b). Foreground and background data
  5. There is a lot of controversy regarding whether cloth or disposable diaper is more environmentally friendly. Evaluating the “Best diaper ultimately depends on the community situation” according to the Institute of Lite Science Environmental Assessment. What does the institute meant by this statement?