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What general procedures are used to reduce microbial numbers
(microbial load) in water supplies?
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- vSludge that has been completely combined with water is recycled activated sludge.What are the system's operational issues?a) Define 'Disinfection' and 'Sterilization' OR differentiate between them. b) Enlist the different methods of 'Disinfection' which method would you recommend for 'Municipal Water Supply' and WHY? Depending on the availability of 'Source of Water which 'Source' is more important than the other for disinfection and WHY? Give reason. c) of them is stronger than the other and by what percentage? Define or differentiate between “Free Available Chlorine" and “Combined Available Chlorine". Write their Chemical Formulae and mention which one d) Define “Break Point Chlorination". With the help of a neat Figure' show the "Break Point" and also show "Combined Available Chlorine", "Free Available Chlorine" and "Total Available Chlorine". Mention the “Dosage" in order to obtain a “Free Available Chlorine Residual" of about 0.5 mg/l or above. e) Define the term “Chlorine Demand" of water. What are the "Factors" OR enlist the "Factors" that show the "Effectiveness of Chlorine".What sources of microbial contamination are in nutrient agar exposed in air,water,soil and plant leaves? What are the steps to removing or contaminating these sources?
- Microorganisms are used in the nitrogen removal process. Discuss why it isn't part of the secondary treatment, often known as biological water treatment.Discuss the different methods of water analysis to determine pollution.What are the common tests that are used to identify water quality? Briefly describe them
- What is the purpose of degerming? Does it completely eliminate microbes? What are some factors that alter the effectiveness of a disinfectant?A water quality control board reports that water is unsafe for drinking if the proportion of nitrate concentration exceeds 21% ppm. Water specimens are taken from a well. ?o: ??:What is the hurdle technology used to destry the microbial load in squash soup?
- What are the hazards on water in meat processing plants?What is biochemical oxygen demand (BOD) test? At what stage of Sewage treatment this test is performed? BOD level of three samples of water labelled as A, B and C are 30 mg/L, 10mg/L and 500 mg/L respectively. Which sample of water is most polluted?Make a unique answer: Describe the methods for identifying and quantifying microbial contaminants in water supplies.