Method of wastewater treatment combines micro-organisms and aquatic plant roots in filter bed. Treatment occurs as liquid flows up through system. Micro-organisms, attached themselves to rocky base material of filter, act in several steps to decompose organic matter in wastewater. Vascular aquatic plants (typically, reeds, rushes, cattails, or water hyacinths) absorb nitrogen, phosphorus, other nutrients, and heavy metals from water through finely divided roots.
Aquatic Plants Aid Sewage Filter
NASA Tech Briefs ; 8 , 3
1985-01-01
Miscellaneous
No indication
English
Retrofit sewage treatment plants
Tema Archive | 1977
Marine Sewage Treatment Plants
British Library Conference Proceedings | 2000
|Variable speed control in sewage plants
Engineering Index Backfile | 1938
|