Abstract
We developed the model system of sewage purification with zeolite and plants, and discussed its performance. It is one of the called "Living Machines" type. This system utilizes the function that plants absorb nutrients, and zeolite attaches a cation and filtering suspended solid in wastewater. As a result, the removal speed of nutrients(T-N,T-P) (* the unit: mg/m2·day) in each system showed zeolite (508,307), gramineae(1796,196), galingale (785,41), canna (5605,812), and elephant ear (2627,353). The canna was the highest in the removal performance of T-N and T-P. The growth of canna was the most remarkable. The growth of gramineae and galingale was unstable. It was considered that the canna was very effective as the plants making the sewage purification system of this "Living Machines" type.
