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Investigation on influence of toxic substances on microbial methane production from cattle wastes


, : Investigation on influence of toxic substances on microbial methane production from cattle wastes. Zentralblatt fuer Mikrobiologie 147(5): 308-318

The process of microbial methane formation is determined by a lot of factors. The substrate influences the process intensity and stability by its normal components or by substances formed during its degradation (e.g. volatile fatty acids, NH3, H2S) or by its contamination with toxic substances derived from feed or cleaning systems (e.g. antibiotics, disinfectants, metal compounds). The effects of some harmful substances (copper ions, formaldehyde, disinfectant "Fesiamon", chloroforme, and ethanol) on biogas formation from cattle wastes were determined in discontinuous process and an algorithm for the identification of substrate contamination was developed by measuring of biogas formation in diluted probes.

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Wright David L.; Smith David V.; Abraham Jared D.; Hutton Raymond S.; Bond E. Kent; Cui Tie Jun; Aydiner Alaeddin A.; Chew Weng Cho, 2000: Imaging and modeling new VETEM data. In previously reported work (Wright and others, 2000) we found that the very early time electromagnetic (VETEM) prototype system produced data from which high resolution images of a buried former foundry site at the Denver Federal Center were made...

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