By Christian Kennes, María C. Veiga (auth.), C. Kennes, M. C. Veiga (eds.)
Air pollutants, an important trouble on the finish of the twentieth century, nonetheless continues to be an important challenge to be solved this present day. often, commercial waste gases have basically been handled via actual or chemical tools. the quest for brand new, effective, and reasonable substitute applied sciences has ended in the improvement and, extra lately, the development of gasoline section bioreactors.
This booklet is the 1st unmarried textual content to supply a whole, finished photograph of all significant organic reactors compatible for fixing pollution difficulties. The textual content describes the most beneficial properties and covers the key points, from microbiological to engineering, in addition to monetary facets, of the differing kinds of bioreactors. The publication additionally provides an in-depth overview of the topic, from primary bench-scale examine to commercial box purposes with regards to the operation of full-scale platforms effectively treating polluted air in Europe and the us. fabric devoted to extra traditional non-biological applied sciences has additionally been incorporated, to supply an entire review of the various substitute therapy tactics.
Audience: the several chapters were written via foreign specialists, because of a fruitful collaboration among ecu and American scientists and engineers. The ensuing textual content is a top quality, worthwhile reference device for a number of readers, together with graduate and postgraduate scholars, researchers, professors, engineers, and people pros who're attracted to environmental engineering and, extra in particular, in leading edge pollution keep an eye on technologies.
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Extra resources for Bioreactors for Waste Gas Treatment
This is also the reason why biotrickling filters are sometimes called fixed film bioscrubbers by a few authors. The aqueous trickling phase is also advantageously used in biotrickling filters for removing inhibitory or toxic intermediate metabolites or end products. Bioreactors filled with inert or synthetic carriers to which a nutrient solution is added, though not by means of a continuous trickling phase, should be considered as conventional biofilters. , once a week or sometimes even less frequently.
If the re actor is not packed, or, in other words, if it does not contain any carrier material, the active reactor volume would correspond to the actual reactor volume available to the substrate or to the bulk air flow. However, in packed reactors such as conventional or trickling biofilters, air can only occupy the void volume which depends on, among others, the porosity ofthe carrier. 2) where e is the ratio between the void volume available to air and the total reactor or carrier volume. Since it is not easy to accurately estimate the value of e, the EBRT is the parameter most often used in biofiltration and most frequently reported in the literature.
33) E The height of the mass transfer zone is related to the shape of the adsorption isotherm. 35) where v is the velocity of the MTZ flowing down the column. Such velocity is usually quite lower than the linear gas velocity of air fed to the system. 3 INCINERATION Incineration is a combustion process in which most often, though not exclusively, under optimal conditions hydrocarbons are converted to carbon dioxide and water. It is a process in which volatile organic compounds are combined with oxygen, with C Kennes et al.