please need ans of this questions of environmental engineering.
Question # 3 a) Define 'Pure and Potable water'. Which one of them will you recommend for drinking? Why we 'treat water'? What should be the 'Type and Degree' of treatment for 'different uses of water"? Discuss and compare them. [2.5] Answer: b) Write down the names of the 'facilities' in sequential order for a 'Conventional Water Treatment Plant' for a 'Surface Source of Water'. What type of 'impurities' will be removed by these 'facilities'? What are the different types of 'impurities' in a 'Ground Source of Water'? Discuss in detail their 'effects' on 'Public Use and Industrial Use'. [2.5] Answer: c) Define 'Filtration'. What are different types of 'filters' and which of them will you recommend for 'public use' in 'Cities and villages'? What is the basic difference that differentiate between them? Which 'filter' is more efficient for the removal of 'Coliform Bacteria"? What 'percentage' of 'Coliform Bacteria' will be removed by each of them? Also differentiate between 'Pathogenic and Non-Pathogenic Bacteria'. What types of 'disinfectants' will you recommend for the killing of 'Pathogenic Bacteria'. Discuss compare and justify. (2.5] Answer: d) Can you write the different 'Coagulants' used for 'Coagulation and Flocculation'? What is the relationship between 'gpg and mg/I'? Why 'Alkalinity' is needed in 'Coagulation process'? How can you find the 'Optimal Dose' and the 'Best Coagulant' for 'Coagulation Process'? Discuss, compare and justify each part. [2.5] Answer:
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