Question

What forces and processes exist when natural absorbents like wood pellets are able to absorb bound water in sewage sludge

Answer 1

Answer:

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Answer 2

With the rapid development of water treatment industry, the amount of activated sludge produced by treating sewage increases [1]. Because activated sludge is characterized by high water content, loose structure, a large amount of organic matter, and poisonous and harmful substances (such as microorganism, heavy metal, and poisonous organism) [2], it has become an important environmental issue and needs to be treated through an effective pathway. At present, sludge utilization has become one of the important methods for sludge disposal [3–5]. For example, sludge-based activated carbon (SBAC) material which is prepared with treated activated sludge can be used to adsorb