Alfred Stowell Jones,
Natural & Artificial Sewage Treatment
“ The work in the septic tank is chiefly done by obligatory anaerobes. [Pg 83] (c) Explanation of Process.—Although the processes taking place in septic tanks are at present but imperfectly understood, they may be said to be in the main due to anaerobic micro-organisms, i.e. due to such micro-organisms which carry on their life’s work in the absence of oxygen. They split up or peptonise the organic compounds in the absence of air, and the group of changes brought about by them has been termed “anaerobic fermentation” or “putrefaction.” ”
