____________ substances present in sewage are removed in grit chamber during sewage treatment?

Related Mcqs:

There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?

A. Mercury B. Arsenic C. Aluminium D. Lead...

Pick out the correct statement ?

A. Deforestation helps in controlling the green house effect B. Global warming is detrimental for increase in food productivity and may cause flood and cyclone C. Lightening discharges are natural source of production of SO2 & H2S pollutant D. Sulphur dioxide causes death by asphyxiation...

World environment day is observed every year on the 5th of___________________?

A. June B. December C. July D. September...

Which of the following is not a source of ozone emission in the atmosphere?

A. Refrigerators B. Xerox machines C. Dermatological photo-therapy equipments D. High voltage electrical equipments...

Foaming and priming in boiler operation can be reduced by reduction in ______________ in feed water?

A. Turbidity B. Color (Hazen) C. Total solids D. All A., B. & C....