These differences as well as some similarities are summarized in the following table. In the table domestic sewage treatment has been divided into centralized and decentralized treatment, while industrial wastewater treatment has been divided in large industries and small industries. No applications due to too cold temperature.
Anaerobic treatment is a well proven and accepted technology.
Connection to the sewer and central treatment is more common. Application in developing countries Use of septic tanks widespread. Still few applications, but there are high potentials and there is an exponential growth in numbers. Only a few applications, despite a lot of research and pilot testing. No applications, but feasibility and viability studies are already being made.