Wastewater treatment technologies
Source: Reed, et al., Natural Systems for Waste Management and Treatment, New York, McGrawHill, 1988. Aquaculture systems are distinguished by the type of plants grown in the wastewater holding basins. These plants are commonly water hyacinth (Eichhornia crassipes) or duckweed (Lemna spp.). These systems are basically shallow ponds covered with floating plants that detain wastewater .