Question:I am new to pumping and am fascinated by the biological processes involved in an individual sewage treatment system. I have numerous questions, but will only submit one topic: I want to know what sludge really is. One online encyclopedia says sludge is sewage solids that quickly sink through the floating scum. Another source says sludge is the waste product of the enzymes as they do their job of decomposing waste material.Further, does sludge consist of many fine particles if allowed to dry and be inspected? Is this material the cause of drainfield glazing?AnswerThere are many different kinds of sludge
