We are having proplem with the persperation smell in
ETT/ECHO room in our cardiac hospital.The 2 Ton of AC is
not conditioning the environment. We have to use exhaust
fan to through out of the room bad air. Could anyone
suggest how to coup with this effectively using chemical
engineering. Any permanent solution to neutralise the bad
smell.The Air freshners are not doing enough instead making
a bad odour.
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MICROBIOLOGICAL ENGINEERING - QUESTION 28.1 : In the calculation of the growth of bacteria, colony forming unit (CFU) in serial dilution is used. In a laboratory, viable count assay is used to estimate CFU. Formula applied is CFU / mL = (number of colonies x dilution) / (amount plated, in unit mL). Acceptable plate count is either between 20 and 200 or between 30 and 300 according to 2 different references. A wastewater sample of 200 ml is added to and mixed with 1.8 L of sterile water. Another 200 ml of the mixture is added to and mixed with 1.8 L of sterile water. (a) Calculate the dilution of first mixture and the dilution of the second mixture. (b) 100 microlitres of wastewater samples from the first mixture and the second mixture are placed separately on 2 different alga plates. The first plate has 250 colonies and the second plate has 23 colonies. Calculate the average CFU / mL.
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