Digestion
Many sludges are treated using a variety of digestion techniques, the purpose of which is to reduce the amount of organic matter and the number of disease-causing microorganisms present in the solids. The most common treatment options include anaerobic digestion, aerobic digestion, and composting.
Read more about this topic: Sewage Sludge Treatment
Famous quotes containing the word digestion:
“Memory is like a purse,—if it be over-full that it cannot shut, all will drop out of it. Take heed of a gluttonous curiosity to feed on many things, lest the greediness of the appetite of thy memory spoil the digestion thereof.”
—Thomas Fuller (1608–1661)
“He hopes it is no other
But for your health and your digestion sake,
An after-dinner’s breath.”
—William Shakespeare (1564–1616)
“My dear, if Mr. Carlyle’s digestion had been stronger, there is no saying what he might have been!”
—Jane Welsh Carlyle (1801–1866)