Natural Treatment And Onsite Processes

The term "Natural Treatment" includes many types of physical and biological treatment technologies, with the common feature of relying almost entirely on natural processes or components for the treatment function, whether the system is soil-based or aquatic. Onsite systems tend to be fairly simple and make use of soil or aquatic systems, but some of the components can be quite technologically advanced. Therefore, there are overlapping aspects of the various topics covered in this review, and distinct separation is not possible. Many of these types of natural systems, including aquatic and soilbased ones used in onsite treatment, are presented in detail in the new edition of WEF MOP No. FD-16 (2001).