Schematically describe microbial growth curve.
[3 marks]State how to calculate quantity of water required for design of water supply scheme for a town.
[4 marks]Derive the equation for first stage BOD and calculate day BOD at 20oC if 3 day BOD at 30oC is 110 mg/Land Kat 20oC is 0.1 D
[7 marks]What is E-coli test? Explain the purpose of this test.
[3 marks]“Hand pump water is treated safe compared to pond water” Justify the statement
[4 marks]Compare temporary and permanent hardness and find out total hardness, carbonate hardness and non-carbonate hardness for water analysis-Ca=60 mg/L, Mg= 30 mg/L, Na=101 mg/L, K= 21 mg/Land HCO = 200 mg/L3
[7 marks]Enumerate different chemical characteristics of water and wastewater and explain cause of acidity and alkalinity in water?
[7 marks]Differentiate colloidal and suspended impurities present in water
[3 marks]What do you mean by pH? How can it be determined in lab
[4 marks]What is solid waste management? Discuss the solid waste management of your society.
[7 marks]Discuss the use of water seal in trap with the sketch.
[3 marks]Differentiate Indian and American type trap showing their sketches
[4 marks]What is self-purification of river? Calculate DO and COD of mix, when two industrial streams of DO of 0.5 mg/Land 0.1 mg/Land COD of 200 mg/Land 400 mg/Land flow of 30 cumecs and 50 cumecs respectively are disposed in river of flow 500 cumecs. Initial DO and COD of river was 6.0 mg/Land 30 mg/Lrespectively.
[7 marks]What is house drainage plan? Draw house drainage plan for your house in which you are residing.
[3 marks]Define (i) Soil pipe (ii) Refuse (iii) Garbage (iv) Waste pipe1
[4 marks]Describe one pipe and two pipe systems of plumbing with sketches and compare their merits and demerits.
[7 marks]State the role of SO and NO in acid rain formation. x x
[3 marks]Discuss the effects of CO and RSPM on human beings.
[4 marks]Compare the working principles of wet scrubber and cyclone for air pollution control with sketches.
[7 marks]List out the remedial measures to control noise pollution.
[3 marks]State the salient features of The environment (protection) act 1986
[4 marks]Describe briefly different disposal technologies used for solid waste disposal and compare composting with land filling.
[7 marks]Give the classification of solid waste.
[3 marks]Discuss compositions of atmosphere and atmospheric air
[4 marks]Describe briefly disposal techniques used for hazardous waste and hospital waste
[7 marks]