HUMAN NUTRITION

Detailed explanation-1: -When blackwater gets into the septic tank, the solid particles from the feces and the tissue drop to the bottom of the tank where bacteria begin to consume them. In a conventional septic tank, the bacteria do not need oxygen and as they eventually convert the solid waste into gas and liquid.

Detailed explanation-2: -Inside the tank bacteria from the wastewater breaks down the solid waste. These bacteria decompose the solid waste rapidly allowing the liquids to separate and drain away more easily.