There are three ways to check for wastewater: see physical characteristics. Biological and chemical inspection<br>Physical characteristics are viewed with the naked eye or easily measured such as turbidity, temperature, color, smell.<br>Biological characteristics are the measurement of microorganisms contained in water. <br>Chemical characteristics are pH, biochemical oxygen damage, BOD, ioD, nutrients and toxic substances and heavy metals.<br>Physical characteristics are probably the easiest to see. Preliminary inspection of wastewater is done by sniffing. View Colors Look at the turbidity.
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