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基本説明
Previously published as the journal Water Science and Technology, Volume 31, Number 7.
Full Description
The sewer is traditionally considered simply as a means of transporting waste flows and storm-water runoff to a sewage treatment plant or directly to receiving waters via overflow structures during wet weather periods. Except for the transport of sediment and formation of H2S, processes taking place in the sewer are normally neglected. In reality, wastewater in sewer systems is subject to important physical, chemical and biological changes and the sewer should be considered as an integral part of the urban wastewater system. Among the processes that have significant implications are: corrosion of sewers caused by H2S, odour problems from anaerobic transformation of organic matter, contamination of sewer atmosphere, solids deposits, pollution of receiving waters from combined sewer overflows, and operational problems for wastewater treatment plants, particularly those with denitrification and biological phosphorous removal. These selected proceedings record the results of pioneering research as presented at a highly successful and groundbreaking conference.
Contents
Integrated approaches - modelling - modelling of water quality processes and the interaction of sediments and pollutants in sewers, H. Gardsal et al; solutes and sediment transport - field measurement - origin, resuspension and settling characteristics of solids transported in combined sewage, S. Michelbach; sediment transport - modelling - principles and approaches for numerical modelling of sediment transport in sewers, O. Mark et al; air-water mass transfer - aromatic VOC emissions from a municipal sewer interceptor, R.L. Corsi et al; processes in wastewater and biofilm - influence of oxygen on biofilm growth and potential sulfate reduction in gravity sewer biofilm, N.H. Norsker et al, experimental procedures characterizing transformations of wastewater organic matter in the Emscher River, Germany, H. Lokkegaard Bjerre et al; prediction of sulfide formation - the control of septicity and odours in sewerage systems and at sewage treatment works operated by Anglian Water Services Limited, D.C.W. Sercombe; fate of specific pollutants - the fate of detergent surfactants in sewer systems, E. Matthijs et al.
