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Showing posts from August, 2021

STP & ETP

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  STP     Sewage treatment platn (residential & commercial) ETP     Effluent treatment plant (industry) COD     Chemical oxygen demand (soluble & insoluble organic compound) (2hr to 3hr) (mg/l) BOD     Biochemical oxygen demand (organic compound) (3days to 5days) (mg/l) KEY POINTS: Outlet of STP 50mg/l Biproduct of anaerobic digestion is H2S & NH3 To reduce stink smell use ozone 
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MICROWAVE OVEN

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 MICROWAVE OVEN The major component present in the microwave oven are: Transformer 200/2000V HV Capacitor HV Diode Magnetron Fuse
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MOSQUITO BAT

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MOSQUITO BAT The major component present in the mosquito bat are: Capacitor Resistor Diode Rechargable Battery 4V Key Switch LED Transistor Transformer 4/200V  
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