Treatment variability for wetland wastewater treatment design in cold climates

Abstract The purpose of this article is to highlight the growing need for small-scale, passive, natural systems that can serve our needs in water pollution control both in small communities and larger urban developments. Engineered wetlands represent one potential wastewater management option that exhibits promise in satisfying community requirements for contaminant and pathogen removal. However, the Canadian climate presents special challenges for constructed wetland treatment systems whose functional reliability is not nearly as well developed as currently available, more conventional, but less sustainable treatment options. The goal of this article is to present some of the key issues that require more fundamental understanding if engineered wetlands are to become a predictable, mainstream approach for decentralized wastewater treatment. Two critical factors limiting the advancement of treatment wetland technologies are a standardized approach to elucidate extant process mechanisms and a basis with which to make more meaningful comparisons within and between systems that naturally evolve and mature with time.

[1]  C. Polprasert,et al.  Kinetics of Fecal Coliform Removal in Constructed Wetlands , 1999 .

[2]  Sherwood C. Reed,et al.  Constructed wetland design-the first generation , 1992 .

[3]  M. Madigan,et al.  Brock Biology of Microorganisms , 1996 .

[4]  Chris C. Tanner,et al.  Effect of loading rate and planting on treatment of dairy farm wastewaters in constructed wetlands—I. Removal of oxygen demand, suspended solids and faecal coliforms , 1995 .

[5]  H. Brix.  Do macrophytes play a role in constructed treatment wetlands , 1997 .

[6]  S. Lyon,et al.  Survival of bacteria and viruses in municipal wastewaters applied to artificial wetlands , 1987 .

[7]  Gerald A. Moshiri,et al.  Constructed Wetlands for Water Quality Improvement , 1993 .

[8]  P. Nichols,et al.  Microbial consortia in wetland sediments : A biomarker analysis of the effects of hydrological regime, vegetation and season on benthic microbes , 1996 .

[9]  L. Baker,et al.  Nitrogen transformations in a wetland receiving lagoon effluent: sequential model and implications for water reuse. , 2001, Water research.

[10]  J. M. Tyson,et al.  Valuing environmental benefits from river quality improvements , 1995 .

[11]  M. Sobsey,et al.  Microbial indicator reductions in alternative treatment systems for swine wastewater , 1998 .

[12]  Hans Brix,et al.  SOIL OXYGENATION IN CONSTRUCTED REED BEDS: THE ROLE OF MACROPHYTE AND SOIL-ATMOSPHERE INTERFACE OXYGEN TRANSPORT , 1990 .

[13]  E. Luis,et al.  Role of Scirpus Lacustris in Bacterial and Nutrient Removal from Wastewater , 1999 .

[14]  Donald A. Hammer,et al.  Constructed Wetlands for Wastewater Treatment , 2020 .

[15]  George Tchobanoglous,et al.  Small and decentralized wastewater management systems , 1998 .

[16]  H. J. Bavor,et al.  Challenges for the development of advanced constructed wetlands technology , 1995 .

[17]  N. Mezrioui,et al.  bactéries d'intérêt sanitaire dans une eau usée épurée par lagunage » , 1992 .

[18]  Tore Krogstad,et al.  Potential use of constructed wetlands for wastewater treatment in northern environments , 1993 .

[19]  P. Cullen,et al.  Denitrification in a natural wetland receiving secondary treated effluent , 1988 .

[20]  Colin Hunter,et al.  Removal of enteric bacteria in a surface flow constructed wetland in Yorkshire, England , 2000 .

[21]  Robert H. Kadlec,et al.  Chemical, physical and biological cycles in treatment wetlands , 1999 .

[22]  K. Reddy,et al.  Biogeochemical indicators to evaluate pollutant removal efficiency in constructed wetlands , 1997 .

[23]  Hans Brix,et al.  Functions of Macrophytes in Constructed Wetlands , 1994 .

[24]  T. E. Cloete,et al.  Microbial community analysis : the key to the design of biological wastewater treatment systems , 1997 .

[25]  Hans Bertil Wittgren,et al.  Wastewater treatment wetlands in cold climates , 1997 .

[26]  Alan Warren,et al.  The role of ciliated protozoa in subsurface flow wetlands and their potential as bioindicators , 1999 .

[27]  Alan Warren,et al.  Removal of pathogens from wastewaters by the root zone method (RZM) , 1995 .

[28]  Sherwood C. Reed,et al.  Subsurface flow wetlands : a performance evaluation , 1995 .

[29]  W. Armstrong,et al.  MEASUREMENT AND MODELLING OF OXYGEN RELEASE FROM ROOTS OF PHRAGMITES AUSTRALIS , 1990 .

[30]  K. R. Reddy,et al.  Aquatic plants for water treatment and resource recovery : Proceedings of the Conference on Research and Applications of Aquatic Plants for Water Treatment and Resource Recovery, held July 20-24, 1986, in Orlando, Florida , 1987 .

[31]  Sherwood C. Reed,et al.  Natural Systems for Waste Management and Treatment , 1994 .

[32]  Yin Hong,et al.  Using reed beds for winter operation of wetland treatment system for wastewater , 1995 .

[33]  George Tchobanoglous,et al.  Wastewater Engineering Treatment Disposal Reuse , 1972 .

[34]  R. L. Knight,et al.  Designing Constructed Wetlands for Nitrogen Removal , 1994 .

[35]  Steven G. Buchberger,et al.  An approach toward rational design of constructed wetlands for wastewater treatment , 1995 .

[36]  A. Warren,et al.  Investigation of Escherichia coli removal in various designs of subsurface flow wetlands used for wastewater treatment , 2000 .

[37]  Peter J. Fisher,et al.  HYDRAULIC CHARACTERISTICS OF CONSTRUCTED WETLANDS AT RICHMOND, NSW, AUSTRALIA , 1990 .

[38]  P. F. Cooper,et al.  Constructed wetlands in water pollution control. , 1990 .

[39]  Krishna R. Reddy,et al.  Regulators of heterotrophic microbial potentials in wetland soils , 1999 .

[40]  A. G. Wollum,et al.  Microbial Populations and Decomposition Activity in Three Subsurface Flow Constructed Wetlands , 1991 .