By Volodymyr Ivanov, Viktor Stabnikov
This e-book provides the 1st entire textual content on building biomaterials and bioprocesses. It information points of development biotechnology, a brand new interdisciplinary region related to purposes of environmental and business microbiology and biotechnology in geotechnical and civil engineering. It additionally seriously stories all present and strength development biotechnology processes.
It discusses a couple of issues together with the biotechnological construction of latest development fabrics equivalent to self-healing concrete, development biocomposites, development bioplastics, and biotechnological admixtures to cement. It additionally addresses construction-related strategies like biocementation, bioclogging, soil floor fixation and biosealing, microbial cements and grouts, the biocoating of development fabric surfaces, the microbiology and biosafety of the development surroundings, the prevention of biocorrosion in addition to biodeterioration and biofouling in civil engineering. Biomediated precipitation of calcium, magnesium, and iron compounds as carbonates, phosphates, sulphides, and silicate minerals in soil for its clogging and strengthening are thought of from geotechnical, chemical, and microbiological issues of view. It bargains an outline of the fundamental microbiology that would let civil engineers to accomplish the development biogeochemical techniques. layout rules and concerns for various box implementations are mentioned from a pragmatic standpoint. The publication can be utilized as a textbook for graduate and senior undergraduate scholars in biotechnology, civil engineering and environmental engineering in addition to a reference e-book for researchers and practitioners operating during this new interdisciplinary area.
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Additional resources for Construction Biotechnology: Biogeochemistry, Microbiology and Biotechnology of Construction Materials and Processes
These collections are a nonproﬁt bioresource centers that provides biological products, technical services, and educational programs to industry, government, and academic organizations around the world. Their functions are to acquire, authenticate, preserve, develop, and distribute biological materials, information, technology, intellectual property, and standards for the advancement, validation, and application of scientiﬁc knowledge. A strain is identiﬁed by its assigned number in a microbial collection and the name of the species.
If the 28 2 Basics of Biotechnology for Civil and Environmental Engineers pH is changed during cultivation due to accumulation of acid or alkaline, pH buffering substances are introduced into medium or titrants such as NaOH or HCl are added automatically to maintain optimum pH during cultivation. Common pH 2À buffers are a mixture of H2 POÀ 4 =HPO4 salts, Na2CO3/NaHCO3 salts, and CaCO3. If the aeration rate and the content of surfactants (proteins, polysaccharides, and salts of long-chain fatty acids) are high, the formation of foam in bioreactor can destroy cultivation of microorganisms, so the antifoaming substances have to be added to the medium at the beginning or during cultivation.
For example, to enhance urease activity of indigenous microorganisms before the biotreatment, urea can be added to soil (Burbank et al. 2011). However, if microorganisms, used in construction bioprocess, are indigenous it does not mean that they are safe for human, animals, and plants because nonselective conditions of the soil bioprocess, especially in the case of application of nutrients-rich medium, can enhance the proliferation of pathogens or opportunistic pathogens in soil. Additionally, it may take several weeks for ureolytic indigenous groundwater microorganisms to grow and become ureolytically active (Tobler et al.