Question: Human excreta is composed of: (MCAER 2015)
Options:
Solid waste only
Liquid waste only
Both solid and liquid waste
None of the above
🔑Key Points:
-Human excreta refers to waste products of the human digestive system, menstruation, and metabolisms, such as urine and faeces.
-Human excreta is a potential cause of infection.
-Improper excreta disposal poses a number of health risks.
-Human waste is classified as biowaste because it can transmit both viral and bacterial illnesses.
-If it gets into drinking water sources, it can pose a major health risk.
-Humans excrete 128 g of fresh faeces per person per day on average, with a pH of roughly 6.6.
-Fresh faeces include around 75% water, with the remaining solid portion containing 84-93% organic particles.
-These organic solids are made up of 25-54% bacterial biomass, 2-25% protein or nitrogenous matter, 25% carbohydrate or undigested plant materials, and 2-15% fat.