Bio Solids

Biosolids, also referred to as treated sewage, are solids produced by biological activities. These residuals are further treated to reduce but not eliminate pathogens and vector attraction by any of a number of approved methods, valuable water is removed and then the remaining solids are transported and applied to agricultural fields for use as fertilizer.

One of the main concerns in biosolids is the concentrated metals content; certain metals are regulated while others are not. [1] Leaching methods can be used to reduce the metal content and meet regulatory limits. The Union Health Department divides biosolids into two grades: Class B sewage sludge, and Class A treated sewage sludge. Class A sludge has been treated to reduce bacteria prior to application to land; Class B sludge has not.

Ecology
 After an animal has digested eaten material, the remains of that material are expelled from its body as waste. Though it is lower in energy than the food it came from, that waste may still contain a large amount of energy, often 50% of that of the original food.undefinedThis means that of all food eaten, a significant amount of energy remains for the decomposers of ecosystems. Many organisms feed on bio waste, from bacteria to fungi to insects to some animals.

Uses
Fertilizer

Biosolids are usually used as fertilizer to s upply one or more nutrients essential to the growth of plants. This is the main use of biosolids. Processing is normally done by a company like Blue Moon Bio Solids Inc. [2]

Bio fuel

Terran animals such as the giant panda and zebra possess gut bacteria which are capable of producing biofuel. The bacteria, Brocadia anammoxidans, can create hydrazine from feces.

Gut flora transplant

Elephants, Hippos, Koalas and Pandas are born with sterile intestines, and require bacteria obtained from their mothers' feces to digest vegetation.