An on-site system designed to treat and dispose of domestic sewage. A typical septic system consists of a tank that receives waste from a residence or business and a system of tile lines or a pit for disposal of the liquid effluent (sludge) that remains after decomposition of the solids by bacteria in the tank. The remaining solids must be pumped out periodically.
A global DDoS attack has been intermittently affecting many websites globally. You may not have a problem accessing AIChE's sites, but in case you do, please contact Customer Service during normal business hours.