Eichhornia crassipes, water hyacinth is a lignocellulosic material which is considered as a good source of biomass. water hyacinth is compose of different fiber s: lignin, cellulose, and hemicelluloses.
INTRODUCTION Water lilies also known as water hyacinth are aquatic plants found in countries with tropical weather. It grows and multiples fast that it accumulates and hinder the flow of water and increase the accumulation of garbage in the sewage and other bodies of water, increasing pollution and flood probability. It also cause poor water circulation which destroys fish pens and kills fish due to the decay of aquatic plants.(Ani,2011) Water lilies have caused great problem in the lakes, rivers and other water ways in the country. The accumulation of water hyacinth not only increase the pollution in the water but also increased the flooding both in rural and urban communities in great effect.
The branching of problems brought about by water hyacinth introduced the idea of using it as an alternative source of energy to meet the ever growing demand in energy. The biogas production could be an option in developing countries, where it is often found, requiring investments and technological skills.
SIGNIFCANCE OF THE STUDY
SCOPE AND LIMITATION
REVIEW OF RELATED LITERATURE
WATER HYACINTH (Eichhornia crassipes)
Water hyacinth is an aquatic plant native of South America, particularly in the Amazon. It rapidly reproduce and grows both in stagnant and flowing water. Water hyacinth reproduce at temperature between 28 and 30C, at ph level from 4.0 to 8.0.( Lereo and Bressani)
Water hyacinth is a lignocellulosic plant. Tis fibrous component can be a base for the production of bioenergy. (Lereo and Brassini) BIOMASS Due to the increasing demand for biofuel, biomass has been a valuable commodity to produce an alternative source of bioenergy. Based on the study conducted by the IEA Statstics, about 13% of the total energy consumption of the world was copose of biomass.
Bio-ethanol has a higher octane number, broader flammability limits, higher flame speeds and higher heats of vaporisation than gasoline. These properties allow for a higher compression ratio, shorter burn time, and an engine which burns much leaner. These all suggest that ethanol should be better than gasoline in an internal combustion engine (Balat M. et al, 2007) . There are also disadvantages of bioethanol. These include its lower energy density than gasoline (Bioethanol has 66% the energy of gasoline), its corrosiveness, low flame luminosity, low vapor pressure (which makes cold starts difficult), miscibility with water, and toxicity to ecosystems (Balat M., et al, 2007)
Lareo, laonardo and bressani, Ricardo “Possible utilization of the water hyacinth in nutrition and industry” http://www.dpi.nsw.gov.au/agriculture/pests-weeds/weeds/profiles/water-hyacinth Wyman,Charles,E.. “ETHANOL FROM LIGNOCELLULOSIC BIOMASS:TECHNOLOGY, ECONOMICS, AND OPPORTUNITIES” Wyman,Charles,E.. “ETHANOL FROM LIGNOCELLULOSIC BIOMASS:TECHNOLOGY, ECONOMICS, AND...