Characterization and Environmental Risk Assessment Associated with a Sewage Lagoon Managed by the Canadian Armed Force

J.J-L. Armstrong, E.M. Skordaki, N. Vlachopoulos

In the proceedings of: GeoSt. John's 2019: 72nd Canadian Geotechnical Conference

Session: Geoenvironmental

ABSTRACT: The use of lagoons is one of the most cost-effective wastewater treatment (WWT) options for rural communities in Canada. This type of wastewater treatment is also used at several military bases of the Canadian Armed Forces. Lagoons are low-maintenance systems that use natural and energy-efficient processes. This paper presents an investigation of a two-stage facultative lagoon system at a military base in Central Canada, originally constructed in 1988. The methodology employed includes a source to effluent approach to examine the lagoon system with the intent of assessing the effectiveness of the treatment and the potential of contaminants influencing the source water and migrating off-site. In this regard, numerical modelling, a field study, and stakeholder consultations were conducted and are summarized in this paper. The proposed solutions outlined in this paper aims to improve the lagoon™s treatment performance and reliability whilst producing an economical effluent of quality that meets or surpasses the regulatory framework.

RÉSUMÉ: L™utilisation de lagunes est parmi les méthodes les moins dispendieuses pour le traitement des eaux usées pour les communautés rurales au Canada. Ce type de traitement des eaux usées est aussi employé à plusieurs bases militaires des Forces armées canadiennes. Les lagunes utilisent des processus naturel, écoénergétique et ainsi nécessite peux d™entretien. Cet article présente une investigation d™un system de lagune à deux étang facultatif utilisé a une base militaire situé dans la région central du Canada, originalement construis en 1988. La méthodologie employer inclue une approche de source à effluent pour l™étude du system avec l™intention d™évaluer efficacité du traitement ainsi que le risque d™infiltration de contaminant dans l™eau de source et leur mobilisation or-site. À cet effet, de la modélisation numérique, une étude sur le terrain et des consultations avec les parties d™itérais a été réalisé et est résumé dans cet article. Les propositions souligné vise a amélioré la performance et la fiabilité de la lagune ainsi que produire un effluent économique surpassant les exigences réglementaire.

Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.

Cite this article:
J.J-L. Armstrong; E.M. Skordaki; N. Vlachopoulos (2019) Characterization and Environmental Risk Assessment Associated with a Sewage Lagoon Managed by the Canadian Armed Force in GEO2019. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Geo2019Paper304,author = J.J-L. Armstrong; E.M. Skordaki; N. Vlachopoulos,title = Characterization and Environmental Risk Assessment Associated with a Sewage Lagoon Managed by the Canadian Armed Force,year = 2019}