Browsing by Subject "Sewage treatment systems"
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Item Performance of a Textile Filter, Polishing Sand Filter and Shallow Trench System for the Treatment of Domestic Wastewater at the Northeast Regional Correction Center(University of Minnesota Duluth, 2001-11) McCarthy, Barbara J; Monson Geerts, Stephen D; Axler, Richard P; Henneck, JeraldAn estimated half million households in Minnesota are not connected to public sewer systems. Along with the growing use and expansion of lakeshore cabins and resorts, many have the potential to degrade surface and groundwater resources as they depend primarily on individual sewage treatment systems (ISTSs) for the treatment and dispersal of domestic wastewater. Unfortunately, many are in noncompliance with state standards or are hydraulically failing to the surface. Effective treatment options are needed for the thousands of locations with restrictive soil and site conditions. Many of these sites occur along lakes and streams, creating a potential health hazard to swimmers and others using surface water for drinking water and recreation, leading to increased algal blooms, aesthetic nuisances and degraded fish habitat. Packed bed textile filters, coupled with a site-specific soil dispersal system, were one of several options evaluated in Minnesota. Other systems tested in northeast Minnesota have included sand filters (single pass and recirculating), peat filters (in-ground and module), subsurface flow constructed wetlands, aerobic treatment unit, standard trenches, gravel filter and drip distribution (McCarthy et al., 1997, 1998, 1999, 2001; Anderson and Gustafson, 1998; Henneck et al., 1999, 2001; Axler et al., 1999, 2000; Monson Geerts et al., 2000, 2001; Pundsack et al., 2001; Christopherson et al., 2001). This paper provides an overview of the operation and performance of a recirculating packed bed textile filter, polishing sand filter and shallow gravelless trenches at the northern Minnesota research facility.Item Performance of a Textile Filter, Polishing Sand Filter and Shallow Trench System for the Treatment of Domestic Wastewater at the Northeast Regional Correction Center(University of Minnesota Duluth, 2001-11) McCarthy, Barbara J; Monson Geerts, Stephen D; Axler, Richard P; Henneck, JeraldAn estimated half million households in Minnesota are not connected to public sewer systems. Along with the growing use and expansion of lakeshore cabins and resorts, many have the potential to degrade surface and groundwater resources as they depend primarily on individual sewage treatment systems (ISTSs) for the treatment and dispersal of domestic wastewater. Unfortunately, many are in noncompliance with state standards or are hydraulically failing to the surface. Effective treatment options are needed for the thousands of locations with restrictive soil and site conditions. Many of these sites occur along lakes and streams, creating a potential health hazard to swimmers and others using surface water for drinking water and recreation, leading to increased algal blooms, aesthetic nuisances and degraded fish habitat. Packed bed textile filters, coupled with a site-specific soil dispersal system, were one of several options evaluated in Minnesota. Other systems tested in northeast Minnesota have included sand filters (single pass and recirculating), peat filters (in-ground and module), subsurface flow constructed wetlands, aerobic treatment unit, standard trenches, gravel filter and drip distribution (McCarthy et al., 1997, 1998, 1999, 2001; Anderson and Gustafson, 1998; Henneck et al., 1999, 2001; Axler et al., 1999, 2000; Monson Geerts et al., 2000, 2001; Pundsack et al., 2001; Christopherson et al., 2001). This paper provides an overview of the operation and performance of a recirculating packed bed textile filter, polishing sand filter and shallow gravelless trenches at the northern Minnesota research facility.Item Performance of an Aerobic Treatment Unit and Drip Dispersal System for the Treatment of Domestic Wastewater at the Northeast Regional Correction Center(University of Minnesota Duluth, 2001-11) McCarthy, Barbara J; Monson Geerts, Stephen D; Axler, Richard P; Henneck, JeraldAn estimated half million homes in Minnesota are not connected to public sewer systems. Along with the growing use of lakeshore cabins and the conversion of cabins into year-round homes, many have the potential to degrade surface and groundwater resources as they depend primarily on individual sewage treatment systems (ISTSs) for the treatment and dispersal of domestic wastewater. Unfortunately, many are in noncompliance with state standards or are hydraulically failing to the surface. Effective treatment options are needed for the thousands oflocations with restrictive soil and site conditions. Many of these sites occur along lakes and streams, creating a potential health hazard to swimmers and others using surface water for drinking water and recreation, leading to increased algal blooms, aesthetic nuisances and degraded fish habitat. The suspended-growth wastewater treatment process is commonly used by municipal wastewater treatment facilities. This biological treatment process is also available at smaller scales for both individual and multiple home use, and are commonly referred to as aerobic treatment units or ATU's. Since the mid-1990's, systems using both the suspended-growth and fixed-film treatment processes were evaluated for single-family home use in northern Minnesota (McCarthy et al., 1997, 1998, 1999; 2001; Henneck et al., 1999, 2001; Axler et al., 1999, 2000; Monson Geerts et al., 2000, 2001; Pundsack et al., 2001). This paper provides an overview of the operation and performance of one brand of aerobic treatment unit and a drip dispersal system tested at the northern Minnesota research facility.Item Performance of an Aerobic Treatment Unit and Drip Dispersal System for the Treatment of Domestic Wastewater at the Northeast Regional Correction Center(University of Minnesota Duluth, 2001-11) McCarthy, Barbara J; Monson Geerts, Stephen D; Axler, Richard P; Henneck, JeraldAn estimated half million homes in Minnesota are not connected to public sewer systems. Along with the growing use oflakeshore cabins and the conversion of cabins into year-round homes, many have the potential to degrade surface and groundwater resources as they depend primarily on individual sewage treatment systems (ISTSs) for the treatment and dispersal of domestic wastewater. Unfortunately, many are in noncompliance with state standards or are hydraulically failing to the surface. Effective treatment options are needed for the thousands oflocations with restrictive soil and site conditions. Many of these sites occur along lakes and streams, creating a potential health hazard to swimmers and others using surface water for drinking water and recreation, leading to increased algal blooms, aesthetic nuisances and degraded fish habitat. The suspended-growth wastewater treatment process is commonly used by municipal wastewater treatment facilities. This biological treatment process is also available at smaller scales for both individual and multiple home use, and are commonly referred to as aerobic treatment units or ATU's. Since the mid-1990's, systems using both the suspended-growth and fixed-film treatment processes were evaluated for single-family home use in northern Minnesota (McCarthy et al., 1997, 1998, 1999; 2001; Henneck et al., 1999, 2001; Axler et al., 1999, 2000; Monson Geerts et al., 2000, 2001; Pundsack et al., 2001). This paper provides an overview of the operation and performance of one brand of aerobic treatment unit and a drip dispersal system tested at the northern Minnesota research facility.