Sanitation systems have a range of component technologies for each functional element of the sanitation process. It can be generally described as a stepwise process that begins with the user interface, collection, storage/containment, conveyance, treatment and ends with disposal/reuse. Different system types serve different needs and scenarios/ground conditions and as a consequence, these elements may become modified, combined, or omitted. Generally, they all address collection, and containment in some form, most involve conveyance and some level of treatment and disposal, and some also include reuse.