Tag Archives | Environmental Microbiology

Heavy Metal Tolerance in Microbes | Microbiology

Algae, bacteria, actinomycetes, fungi, higher plants, cyanobacteria., are the major microorganisms reported to tolerate heavy metals which universally occur in diverse ecosystems with meaning frequency. 1. Algae: The species of Chlorella, Anabaena inaequalis, Westiellopsis prolifica, Stigeo clonium tenue, Synechococcus species, Selenastrum capricornutum etc. tolerate heavy metals. 2. Bacteria: Bacteria resistant to heavy metals were frequently isolated from environmental sources such [...]

By |2016-12-12T07:36:01+00:00December 12, 2016|Bacteria|Comments Off on Heavy Metal Tolerance in Microbes | Microbiology
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Levels of Sewage Treatment | Microbiology

Basically, there are two levels of sewage treatment on the basis of amount of sewage generated by humans: small scale treatment and large scale treatment. Small scale treatment of sewage is done in small homes and rural areas, whereas large scale treatment is done in towns and cities by municipal bodies. 1. Small Scale Sewage Treatment: There are several methods [...]

By |2016-12-12T07:36:01+00:00December 12, 2016|Environmental Microbiology|Comments Off on Levels of Sewage Treatment | Microbiology
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3 Stages of Anaerobic Digestion | Microbiology

Anaerobic digestion is accomplished in three stages, solubilisation, acidogenesis and methanogenesis. Stage # 1. Solubilisation: It is the initial stage when feed stock is solubilized by water and enzyme. The feed stock is dissolved in water to make slurry. The complex polymers are hydrolysed into organic acids alcohols by hydrolytic fermentative methanogenic bacteria which are mostly anaerobes (Fig. 33.3A). Stage [...]

By |2016-12-12T07:36:01+00:00December 12, 2016|Anaerobic Digestion|Comments Off on 3 Stages of Anaerobic Digestion | Microbiology
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