What makes up the greatest part of sanitary sewage?

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Multiple Choice

What makes up the greatest part of sanitary sewage?

Explanation:
Sanitary sewage is primarily water. The flow you’re dealing with is essentially wastewater carrying dissolved substances and some solids, but the volume is dominated by water—typically around 99% of the flow. The remaining portion comes from solids (organic matter, grit, fats), plus bacteria and odors, but these are much smaller in amount than the water itself. This is why treatment goals center on handling the water phase and then removing the solids to cut down pollutants.

Sanitary sewage is primarily water. The flow you’re dealing with is essentially wastewater carrying dissolved substances and some solids, but the volume is dominated by water—typically around 99% of the flow. The remaining portion comes from solids (organic matter, grit, fats), plus bacteria and odors, but these are much smaller in amount than the water itself. This is why treatment goals center on handling the water phase and then removing the solids to cut down pollutants.

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