Download Agro-Environmental Sustainability: Volume 2: Managing by Jay Shankar Singh, Gamini Seneviratne PDF

By Jay Shankar Singh, Gamini Seneviratne

This two-volume paintings is a testomony to the expanding curiosity within the position of microbes in sustainable agriculture and meals protection. Advances in microbial applied sciences are explored in chapters facing issues comparable to plant-microbe interactions, rhizoremediation and cyanoremediation, and bio-immobilization. quantity II is a set of study findings that invitations readers to envision the applying of microbes in pollutants relief, decontamination of agro- and aquatic ecosystems, and remediation of varied poisonous compounds. hugely readable entries try to shut the information hole among soil microbial institutions and sustainable agriculture.

conventional agricultural administration options have relied seriously on software of chemical fertilizers and insecticides; and up to date land use swap practices have ended in over exploitation of average assets. innovations defined right here simplify a classy photograph of ways microbial groups can increase the standard of atmosphere and put off meals shortage within the coming generations. This paintings is an important contribution to investigate during this more and more vital self-discipline of soil sciences, and may entice researchers in microbiology, agriculture, environmental sciences, and soil and crop sciences.

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Fugitive methane, emitted from coal mines around the world, represents approximately 8 % of the world’s anthropogenic methane emissions (Su et al. 2005). The concentration of methane varies for different mining sites and varies locally according to coal quality and coal depth. Methane is emitted as it desorbs from coal during mining, crushing or inefficient combustion, or is actively diluted and pumped out of coal mines to prevent it reaching an explosive concentration. As with landfills, it is important to monitor, regulate and treat methane emissions from coal mines on-site.

2013; Liu et al. 2014). It simultaneously ameliorates two environmental issues: methane emissions and soluble nitrogen content in wastewaters. Methane-dependent denitrification appears to be an economical and environment-friendly technology to enable denitrification of nitrogen-contaminated wastewaters (including landfill leachate) by mixed microbial cultures using a cheap, sustainable carbon source (Long et al. 2013; Sun et al. 2013). 1 Aerobic Methane Oxidation Coupled to Denitrification As early as the 1970s, it was hypothesised that the responsible agent in the mixed methanotrophic culture was a denitrifying methanol-consuming bacteria that used a methanotroph by-product to perform the initial reduction of nitrate to nitrite.

1992), dichloroethene (Janssen et al. 1988) and even vinyl chloride (Nelson and Jewell 1993). 2 Methanotrophs: Methane Mitigation, Denitrification and Bioremediation 33 The oxidation of these substrates is termed co-metabolism. The broad range of the MMO enzymes allows for the catalysis, but unlike methanol, the oxidised ­products are essentially of no use to the cells energetically, as these compounds do not regenerate reducing equivalents that the MMO requires to remain functional for methane catalysis.

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