Affiliation:
1. Farmiloe Fisher Environment Ltd Cornwall UK
Abstract
AbstractIn the United Kingdom, trickling filters remain the most widespread secondary biological treatment process for municipal sewage treatment in terms of number of installations. Ongoing improvement in environmental quality of surface waters requires many of these sites to meet stringent effluent standards. Since publication of the original model for nitrification on mineral media trickling filters by Pearce and Williams in 1999 and the model for nitrification on plastic media filters by Pearce and Edwards in 2010, they have attracted widespread use. Since publication, the models have undergone some refinement and benefitted from an increased application range. Furthermore, recent publications by Pearce and Yang have delivered widely based models for predicting average and seasonal humus tank effluent suspended solids and variability at a resolution of daily 95th percentile performance. This paper presents recent developments of the nitrification models and consolidates the suite of models now available for trickling filter design, evaluation and operation.
Subject
Management, Monitoring, Policy and Law,Pollution,Water Science and Technology,Environmental Engineering
Reference11 articles.
1. Brown J.C. Little L.W. Francisco D.E.&Lamb J.C.(1973)Methods for the improvement of trickling filter plant performance—part one mechanical ad biological optima. US EPA Technical Publication August 1973.
2. Design of a nitrifying tertiary trickling filter based on theoretical concepts
3. Diffusions role in regulating rate and masking temperature effects in fixed film nitrification;Okey R.;Journal Water Pollution Control Federation,1989
4. Pearce P.(2020)Heat losses on stone and plastic media trickling filters. Observations and modelling from field measurements. Presented at the 2020 European Wastewater Management Conference Birmingham UK.
5. A design model for nitrification on structured cross flow plastic media trickling filters