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:
“Now good digestion wait on appetite,
And health on both!”
—William Shakespeare (1564–1616)
“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)
“The supposition that it was possible for any woman to be so mean-spirited as not at least to wish to tear out her rival’s eyes was too hard for the digestion of the Cry.”
—Sarah Fielding (1710–1768)