A home sewage treatment plant , also called a HSTP, is a device which treats both greywater and blackwater in the one place. In principle, a HSTP is loosely based around a community sewage treatment system, however is suited to one home, as opposed to an entire street or area.
There are various kinds of HSTPs, however the usual parts include :
HSTPs use natural bacteria to breakdown sewage in a HSTP.
Solids and liquids are separated by transferring both the blackwater and greywater between varying chambers, which also allows anaerobic bacteria - bacteria that don’t need oxygen to survive - to be added, as well as the aeration of the liquids. After this process is complete, the resulting water can be used for irrigation of your garden safely and securely.
… the (HSTP) system is designed to hold the polluted or degraded water in specially designed compartments where various types of bacteria can flourish and in doing so, “treat” the water, naturally, without dangerous chemicals or additives. - Taylex