What is sludge ❔How its treated ❔
Answers
Explanation:
Sludge is a semi-solid slurry and can be produced as sewage sludge from wastewater treatment processes or as a settled suspension obtained from conventional drinking water treatment and numerous other industrial processes. The term is also sometimes used as a generic term for solids separated from suspension in a liquid.
Meningococcal disease can be treated with antibiotics, but treatment must begin early to be effective. Even if treatment is started as soon as possible, it might not prevent death or serious long-term complications such as hearing loss, brain damage, kidney disease or limb amputations. Unfortunately, it is not easy for healthcare professionals to identify and diagnose the infection in its early stages.
When someone is diagnosed with meningococcal disease, close contacts of that person are given antibiotics as a preventive measure. Close contacts usually include people living in the same household.
Explanation:
Sludge is human waste (like faeces) in waste water left during sewage treatment. Since it is organic waste, it is used to produce biogas and manure. Sludge is collected by a scrapper. It is transferred to a separate tank where it is decomposed by the anaerobic bacteria. The biogas produced in the process can be used as fuel. After the aerator tank, microbes and human waste settle down and form activated sludge. The activated sludge is about 97% water. The water is removed by sand drying beds or machines. Dried sludge is used as manure, returning organic matter and nutrients to the soil.