By Bhaskar Singh, Kuldeep Bauddh, Faizal Bux
This e-book provides the dynamic position of algae in a sustainable setting. significant features, specifically bioenergy and bioremediation, were elaborated in a variety of bankruptcy contributed by means of scientists and lecturers from diversified geographical parts during the global. Algal biofuels is an rising region of equivalent curiosity to researchers, industries, and coverage makers operating or targeting substitute (i.e. renewable) fuels. Algae were a space of curiosity as a result of their wide selection of functions. over the past five many years, eukaryotic algae were utilized in the aquaculture as feed for invertebrates, delivering a wealthy resource of antioxidants, nutritional fiber, minerals and protein. extra lately, there was a spotlight at the use of algal biomass within the improvement of other fuels. The extraction of oil from algae has been broadly explored as a way more potential feedstock than plant-based oils in large-scale gasoline creation. utilizing algae as feedstock has the benefits that it doesn’t require arable land and that wastewater can be utilized as a resource of food of their tradition. The multifunctional procedure of algae contains pollutants remediation, carbon sequestration, biofuels creation, and supply of value-added items. notwithstanding, there are nonetheless a few stumbling blocks that must be conquer to make their use as power feedstock for biofuels techno-economically possible. which will retain the sustainability element of
algal biofuels, numerous points must be studied and significantly analyzed to evaluate the long term sustainability of algal derived biofuels.
This ebook discusses the function of algae as a promising destiny feedstock for biofuels. they're identified to sequester carbon in a lot higher quantities than vegetation and as such the publication additionally describes their phycoremediation power for traditional in addition to rising contaminants. It describes the function of anaerobic digestion in algal biorefineries; bioreactions and method parameters; biogas restoration and reuse. The position of algal biofilm established know-how in wastewater therapy and remodeling waste into bio-products is mentioned, and remediation of sewage water via algae is classified. The publication additionally describes the construction of biohydrogen, bio-oil, biodiesel; and the main bottlenecks of their utilization. The rising characterization ideas of those biofuels (bio-oil and biodiesel) are defined, as are the decolorizing capability of algae and the genetic engineering strategies that may increase the creation of lipids in algae. different features of the e-book contain the function of distant sensing know-how within the tracking of algae and a lifestyles cycle overview of algal biofuels.
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Extra resources for Algae and Environmental Sustainability
Halotolerant marine algal species Dunaliella is also a rich source of β-carotenoid (Gudin and Chaumont 1991). Green alga Chlorella vulgaris is used as a food supplement in many countries including China, Japan, Europe and the USA (Yamaguchi 1997). 2 Fine Chemicals A variety of fine chemicals such as pigments, vitamins and enzymes with various applications can be obtained commercially from different algal strains. Some marine algae are a potential source for commercial production of vitamins such as vitamin B complex and vitamin E (Borowitzka 1988).
Algae are taxonomically divided based on their pigments, storage compounds and the main compounds present in their cell wall. The major classes are Chlorophyta (green algae), Rhodophyta (red algae), Phaeophyta (brown algae), Euglenophyta, Pyrrophyta, Chrysophyta and Cyanophyta (blue-green algae). Advantages of Using Algae • The blue-green alga (cyanobacteria) uses light energy source and CO2 for its growth and survival. This way it helps in carbon sequestration and mitigation of global warming.
Whereas most of the studies reported the inhibitory effect of light metal ions on sorption of heavy metals by biosorbent, a few of them showed no effect (Pawlik and Skowronski 1994; Adhiya et al. 2002; Axtell et al. 2003; Jalali-Rad et al. 2004). 2 Mechanism of Heavy Metal Removal The mechanism of metal biosorption is a complicated process. The status of biomass (living or nonliving), types of biomaterials, properties of metal solution chemistry and environmental conditions such as pH influence the mechanism of metal biosorption.