Ecology, hydrology, and advanced wastewater treatment potential of an artificial wetland in North-central, Florida

Abstract

Two artifici~l marsh/pond systems with a combined area of 21 ha were studied during a one-year period.Since their construction in 1978, volunteer plant colonization has resulted in a shifting mosaic of cattails (Typha spp.), water pennywort (Hydrocotlye umbellata), frog's-bit (Limnobium spongia), duckweed (Lemna spp.}, and other less abundant species.At least 45 bird species were observed to use the wetlands during this study with very dense populations no£ed for several wetland-dependent species.Alligators, fish, turtles, and snakes were abundant in the ponds.The ponds operate a5 flow-through systems, receiving an average treated wastewater application of 4.8 cm per week. Mass balances indicated significant percent removals for biochemical oxygen demand [82 %), total suspended solids (80 %), and total nitrogen (93 %).Removal of total phosphorus was lower, averaging 31% over the one year study.

Ecotoxicology and wetland ecosystems: Current understanding and future needs

“…The major entry route of these materials is runoff from point and nonpoint sources, followed by fluvial transport to the wetland. Other routes include deposition of atmospheric particulates, aerosols, and oxidants [47,48]; direct disposal of contaminated dredge materials; and direct introduction of wastes from transportation activities, pipelines, and landfills [49,50].…”

Distribución en Chile y colonización del río Cayumapu (Valdivia) por el macrófito acuático invasor Limnobium laevigatum

“…Esta especie ocupa biotopos dulciacuícolas, lénticos (Ramírez & Álvarez 2017, Ramírez & San Martín 2006a, preferentemente con alta eutrofización (Knight et al 1985). Cuando esta última aumenta, la planta se hace muy competitiva y desplaza la flora acuática nativa (Urrutia et al 2017b).…”

Análise do potencial de uso das macrófitas aquáticas do sistema de áreas alagadas construídas da ETE da Comunidade de Serviços Emaús (Ubatuba, SP) como adubo orgânico

“…fitotelmos, fontes termais, cachoeiras, lagos, lagoas, represas, brejos, rios, riachos, corredeiras, ambientes salobros (estuários, lagunas e lagos de regiões áridas) e salinos (baías, recifes de corais, praias arenosas e rochosas) (ESTEVES, 1988 , 1986). Knight et al (1985) relataram que a taxa de remoção de N na maioria dos sistemas de wetlands construídas varia entre 46 e 72%. Em sistemas que recebem altas cargas de N, observou-se significativa redução na taxa de remoção.…”