Alternative Renewable

Algae and Environmental Sustainability - download pdf or read online

By Bhaskar Singh, Kuldeep Bauddh, Faizal Bux

ISBN-10: 8132226399

ISBN-13: 9788132226390

ISBN-10: 8132226410

ISBN-13: 9788132226413

This ebook offers the dynamic position of algae in a sustainable atmosphere. significant points, particularly bioenergy and bioremediation, were elaborated in quite a few bankruptcy contributed via scientists and lecturers from diverse geographical components in the course of the global. Algal biofuels is an rising region of equivalent curiosity to researchers, industries, and coverage makers operating or concentrating on replacement (i.e. renewable) fuels. Algae were a space of curiosity because of their wide selection of functions. during the last five many years, eukaryotic algae were utilized in the aquaculture as feed for invertebrates, supplying 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 different fuels. The extraction of oil from algae has been largely 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 method of algae contains toxins remediation, carbon sequestration, biofuels creation, and supply of value-added items. even though, there are nonetheless a few stumbling blocks that have to be triumph over to make their use as capability feedstock for biofuels techno-economically possible. so one can hold the sustainability element of

algal biofuels, a number of facets need to be studied and seriously analyzed to evaluate the long term sustainability of algal derived biofuels.

This e-book discusses the function of algae as a promising destiny feedstock for biofuels. they're recognized to sequester carbon in a lot higher quantities than vegetation and as such the publication additionally describes their phycoremediation strength for traditional in addition to rising contaminants. It describes the position of anaerobic digestion in algal biorefineries; bioreactions and procedure parameters; biogas restoration and reuse. The function of algal biofilm dependent expertise in wastewater remedy and remodeling waste into bio-products is mentioned, and remediation of sewage water via algae is classed. The booklet additionally describes the creation of biohydrogen, bio-oil, biodiesel; and the main bottlenecks of their utilization. The rising characterization innovations of those biofuels (bio-oil and biodiesel) are defined, as are the decolorizing power of algae and the genetic engineering options which could increase the creation of lipids in algae. different elements of the publication contain the function of distant sensing expertise within the tracking of algae and a lifestyles cycle overview of algal biofuels.

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2002). g. anti-HIV) activities as well as biomodulatory effects like immunosuppressive and anti-inflammatory properties (Burja et al. 2001). Chlorella vulgaris has been used as an alternative medicine in the Far East. It is considered an important curing agent for many kinds of health disorders such as gastric ulcers, wounds, constipation, anaemia, hypertension, diabetes, infant malnutrition and neurosis (Yamaguchi 1997). A preventive action of Chlorella against atherosclerosis and hypercholesterolemia is attributed to glycolipids and phospholipids and antitumor actions assigned to glycoproteins, peptides and nucleotides (Yamaguchi 1997).

They have regenerative and metal recovery potentiality. • They generate lesser volume of chemical and/or biological sludge to be disposed off. • They have high efficiency in dilute effluents and have large surface area to volume ratio. • They have the potential to treat sites polluted with more than one type of pollutant. 4 Removal of Heavy Metals by Algae Microalgae are sensitive indicators of environmental changes, and their ubiquitous presence serves as the basis of most freshwater and marine ecosystems, widely being used in the assessment of risk and development of environmental regulations for metals (Levy et al.

2008). A decreased metal sorption by algae has been frequently observed at extremely acidic pH (<2) (Özer et al. 1994; Mehta and Gaur 2001a). , Ulva sp. and Gracilaria sp. were investigated for their biosorption performance in the removal of lead, copper, cadmium, zinc and nickel from dilute aqueous solutions. 5 for cadmium, zinc and nickel (Sheng et al. 2004). There is also a great variability in optimum pH for sorption of a particular metal ion by different algal species. For example, the optimum pH for sorption of Cu by cyanobacteria (Microcystis aeruginosa and Spirulina platensis) is far greater than that for Cu sorption by green algae (Cladophora prolifera, Chlorella vulgaris, C.

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Algae and Environmental Sustainability by Bhaskar Singh, Kuldeep Bauddh, Faizal Bux

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