Efeitos do manejo de Eichhornia crassipes sobre a qualidade da água em condições de mesocosmos

Tolerância da Pistia Stratiotes e Eichhornia Crassipes ao lixiviado gerado em aterro sanitário

“…Embora a temperatura seja determinante nos processos metabólicos, a presença de macrófitas reduz a temperatura devido ao sombreamento da superfície e menor absorção de raios solares pela água PITELLI 2005). Para as macrófitas estudadas ocorreram poucas variações nas temperaturas, possivelmente em função do sistema estar envolvido com papel alumínio para manter o conteúdo isento da intensidade luminosa (KURSCHEIDT, 2011;KURSCHEIDT et al, 2013).…”

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“…The values of electrical conductivity in the natural substrate treatment were marginally higher which may be related to the increase in organic matter due to the decomposition of parts of the macrophyte. Martins and Pitelli (2005) observed that increased electrical conductivity results from the release of nutrients during the process of decomposition of plants. Tavares (1994), who recorded variation of 23-71 μS/cm 2 in fish ponds, observed that EC values can be used as a reference to assess the availability of nutrients in nurseries.…”

Etanol from water hyacinth: A preliminary study of chemical pretreatment and enzymatic hydrolysis

“…Due to its efficiency in the use of aquatic nutrients and solar energy for biomass production, it is considered the worst invasive aquatic plant in the world, leading to serious social, economic, and environmental problems. Excessive growth can result in complete coverage of aquatic surfaces, degrading natural habitats in several ways, causing the proliferation of insects, larvae and mollusks that transmit diseases, affecting the development of animal species, reducing the water flow in canals, dams and rivers, as well as difficulty in navigation and fishing (Pompêo, 1999;Martins & Pitelli, 2005;Zhang et al, 2010;Holanda et al, 2015). Singh et al (1984) reported a daily average productivity of water hyacinth of 0.26 ton of dry biomass per hectare in all seasons, whose seeds can remain viable for 20 years or longer.…”