Waste Water Management

Waste water management Worksheet-4

Fill in the blanks:

1. The material that settles at the bottom is referred to as sludge and the material that rises to the top as ____.
2. Solid waste that settles at the bottom in the primary treatment of wastewater is called the ____.
3. A process used for treating sludge, in which the sludge is burnt into ashes is called ____.

True False: