Firing people after the probation period against their will requires a good reason to do so, but on the first day of your employment, the employer wonÂ´t be sure if he really wants to hire you at all. So, during the probation periond, there is a shortcut to get rid of you.
Aerated lagoon. An aerated lagoon or aerated basin is a holding and/or treatment pond provided with artificial aeration to promote the biological oxidation of wastewaters. There are many other biological processes for treatment of wastewaters, for example activated sludge, trickling filters, rotating biological contactors and biofilters.
Sewage collection and disposal systems transport sewage through cities and other inhabited areas to sewage treatment plants to protect public health and prevent disease. Sewage is treated to control water pollution before discharge to surface waters. Community sewage can also be collected by an effluent sewer system, also known as a STEP system (Septic Tank Effluent Pumping). 2  At each home, a buried collection tank is used to separate solids from the liquid effluent.