Recent questions tagged sewerage-treatment

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The bacteria mainly responsible for crown corrosion in a sewer is $\_\_\_\_\_\_\_\_\_$Methanogenic bacteriaDenitrifying bacteriaSulphur reducing bacteriaPseudomonas bacte...
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Crown corrosion in a reinforced concrete sewer is caused by:$H_2S$$CO_2$$CH_4$$NH_3$
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$\begin{array}{lcl} \textbf{Assertion [a]} &: & \text{At a manhole, the crown of the outgoing sewer should not be higher} \\ & & \text{than the crown of the incoming sewe...
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