| 摘要 |
<p>A treatment system for liquid or liquid and solid effluent. The system is enclosed within a pipe, duct (10) or trench and comprises one or more sloping filter beds (12, 13, 14) with a population of effluent decomposing organisms such as earthworms and mothflies, and an overlying air space. The aqueous media effluent inlet (11) is located above the uppermost filter bed at an upper end and the solid waste input inlet (31), when included, is located downstream of the aqueous media inlet so that the aqueous media flows through and around the solid waste material. A filtrate outlet (28) is located downstream of the flow through the system and manual or conveyor means are provided for solids removal.</p> |
