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Overview Of Eichhornia Crassipes

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Eichhornia crassipes (Water hyacinth), is considered as one of the world’s most invasive aquatic weeds because of its abundant availability, remarkable adaptive ability, and massive growth rate (Hu et al., 2015). It is very difficult to eradicate water hyacinth by physical, chemical, and biological means, though a substantial amount is being spent on their control annually throughout the world. Water hyacinth is regarded as an attractive raw material for biofuel production like bioethanol and biohydrogen, (Masto et al., 2013; Buller et al., 2015; Jiu et al., 2015; Zhang et al., 2015). Its profilic growth rate, 60–100 ton/ha/year, is also beneficial for its commercial cultivation (Mishima et al., 2008). A study by Huang et al. (2015) has …show more content…

Another study reported the fermentation of its hydrolysate yielded a maximum ethanol concentration of 10.44 g/l using Pichia stipitis, followed by 8.24 and 6.76 g/l for Candida shehatae and Saccharomyces cerevisiae (Das et al., 2015). Malveaux (1995) reported that at biomass production rate of 0.26 metric tons of dry biomass/ hectare/day under proven growing conditions in Louisiana yielded 9.62 metric tons of dry biomass per day thus producing 2020.2 kg of sugar for an experimental yield of 1131.3 liters of ethanol per day. Additionally, water hyacinth grows at a very rapid rate and contains very high nitrogen content. Therefore it can be a potential feedstock for biogas production. Increased biogas yield has been reported with the mixture of cowdung and water hyacinth slurry than when used alone (El-Shinnawi et al., 1989). A study by Mathew et al. (2014) has reported the biogas yield of 552 l/kg volatile solids (VS) from water hyacinth. Cheng et al. (2011) has claimed the production of 29 mmol CH4/l/d and 38.2 mmol H2/l/day from anaerobic fermentation water hyacinth. Cheng et al. (2006) reported the highest biohydrogen production of 122.3ml/g from water hyacinth by dark fermentation. 5.2. Duckweed Another aquatic weed, Lemna sp. (Duckweed) is also considered as a potential bioenergy feedstock. Duckweed is considered as one of the world’s most abundant and smallest plants. Duckweeds are monocotyledons and have

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