| 摘要 |
<p>Wastewater, including sewage and septage, is treated is a series of tanks (1-20) exposed to electromagnetic energy. Some of the tanks (3, 8, 13, 18) contain biological cleansing elements (42, 44, 46) growing on a support (40) to purify the wastewater. The treated wastewater is then passed through an artificial marsh (22).</p> |
