\"Tertiary treatment\" is a term that refers to which of the following? a) FSC C
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Question
"Tertiary treatment" is a term that refers to which of the following? a) FSC Certified Wood. b) Water Efficient Landscaping. c) Waste water. d) Construction Indoor Air Quality Management. e) Low Emitting Materials. A reduction in overall water quality due to an increase in the concentration of chemical nutrients would be an example of which of the following? a) Xeriscaping. b) Eutrophication. c) Denitrofication. d) Osmosis. e) Hypoalimentation. Which of the following account for the most energy usage in buildings according to the USGBC? a) Space heating. b) Cooling. c) Domestic hot water. d) Lighting e) Plug-in electronics such as computers, copiers and fax machines. Which of the following constitutes pre-consumer recycled content? a) A tile facility that reuses shards of tile broken during the manufacturing process to make new tile. b) A steel manufacturing facility that uses recycled steel melted down from old cars. c) A steel manufacturing facility that recycles rebar from old construction projects to make steel beams. d) A curtain manufacturer that purchases scrap trimmings from a carpet manufacturing facility. e) All of the above Which pieces of information are required to complete FSC Certified Wood? a) The volume of wood used on the project and the exact location where the wood was harvested. b) The appropriate Chain of Custody (COC) Certification number. c) The name of the product manufacturer. d) The cost of each wood product. e) A list of paints and/or coatings used on each FSC Certified product.Explanation / Answer
11) Teritiary Treatment: It is the term which refers to the treatment of waste water. Suspended and Dissolved solids present in water are removed to some extent by primary and secondary treatment. Further solids which still remain after the primary and secondary treatment are removed during teritiary treatment usually by conventional treatment.
The contaminants which are eliminated during teritiary treatment are
1) Suspended solids
2) Nutrients
3) Toxic compounds
4) Dissolved organics and inorganics
5) Pathogens
12) Eutrophication: Eutrophication occurs due to presence of excessive nutrients in water which may leads to growth of plants and algee which reduces the oxygen content in water.
Basic nutrients present in domestic waste water are
1) Nitrogen (ammonia, nitrite, nitrate)
2) Phosphorus (soluble and insoluble)
3) Sulfate
4) Other compounds of nitrogen & phosphorus
Presence of nutrients in waste water is minimised during tertiary treatment before it is released to rivers.
13) Cooling and lighting account for most energy usage according to USGBC. Lighting is the largest single use of electricity in commercial buildings while most of the commercial buildings are equipped with cooling and heating systems which require more energy.
14) A preconsumer recycled content material is a material which can be recycled into various forms of same type or used as it is.All the above materials steel ,tiles and scraps of curtains comes under pre-consumer recycled content.
15) The following pieces of information are required to complete FSC certified wood:
1)The volume of wood used on the project and the exact location where the wood was harvested.
2) The appropriate Chain of Custody (COC) certification number.
3) The name of the product manufacturer.
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