The Experts below are selected from a list of 258 Experts worldwide ranked by ideXlab platform

Yves Comeau - One of the best experts on this subject based on the ideXlab platform.

  • Phosphorus removal and carbon dioxide capture in a pilot conventional septic system upgraded with a sidestream steel slag filter
    Water, 2020
    Co-Authors: Dominique Claveau-mallet, Hatim Seltani, Yves Comeau
    Abstract:

    The objective of this work was to demonstrate the removal of the phosphorus and carbon dioxide capture potential of a conventional septic system upgraded with a sidestream steel slag filter used in recirculation mode. A pilot scale sidestream experiment was conducted with two septic tank and drainfield systems, one with and one without a sidestream slag filter. The experimental system was fed with real domestic wastewater. Recirculation ratios of 25%, 50% and 75% were tested. Limestone Soils and non-calcareous Soils were used as drainfield media. The tested system achieved a satisfactory compromise between phosphorus removal and pH at the effluent of the septic tank, thus eliminating the need for a neutralization step. The phosphorus removal efficiency observed in the second compartment of the septic tank was 30% in the slag filter upgraded system, compared to −3% in the control system. The slag filter reached a phosphorus retention of 105 mg/kg. The drainfield of non-calcareous Soils achieved very high phosphorus removal in both control and upgraded systems. In the drainfield of Limestone soil, the slag filtration reduced the groundwater phosphorus contamination load by up to 75%. The removal of chemical oxygen demand of the drainfields was not affected by the pH rise induced by the slag filter. Phosphorus removal in the septic tank with a slag filter was attributed to either sorption on newly precipitated calcium carbonate, or the precipitation of phosphate minerals, or both. Recirculation ratio design criteria were proposed based on simulations. Simulations showed that the steel slag filter partly inhibited the biological production of carbon dioxide in the septic tank. The influent alkalinity strongly influenced the recirculation ratio needed to raise the pH in the septic tank. The recirculation mode allowed clogging mitigation compared to a mainstream configuration, because an important part of chemical precipitation occurred in the septic tank. The control septic tank produced carbon dioxide, whereas the slag filter-upgraded septic tank was a carbon dioxide sink.

  • Phosphorus Removal and Carbon Dioxide Capture in a Pilot Conventional Septic System Upgraded with a Sidestream Steel Slag Filter
    2019
    Co-Authors: Dominique Claveau-mallet, Hatim Seltani, Yves Comeau
    Abstract:

    The objective of this work was to evaluate the removal of phosphorus and carbon dioxide capture of a conventional septic system upgraded with a sidestream steel slag filter used in recirculation mode. A pilot scale sidestream experiment was conducted with two septic tank and drainfield systems, one with and one without a sidestream slag filter. The experimental system was fed with real domestic wastewater. Recirculation ratios of 25%, 50% and 75% were tested. Limestone Soils and silica Soils were used as drainfield media. The phosphorus removal efficiency observed in the second compartment of the septic tank was 30% in the slag filter upgraded system, compared to -3% in the control system. The drainfield of silica Soils achieved very high phosphorus removal in both control and upgraded systems. In the drainfield of Limestone soil, the slag filtration reduced the groundwater phosphorus contamination load by up to 75%. Phosphorus removal in the septic tank with a slag filter was attributed to either sorption on newly precipitated calcium carbonate or precipitation of vivianite, or both. Recirculation ratio design criteria were proposed based on simulations. Simulations showed that the steel slag filter partly inhibited biological production of carbon dioxide in the septic tank. The influent alkalinity strongly influenced the recirculation ratio needed to raise the pH in the septic tank. The control septic tank produced carbon dioxide, whereas the slag filter upgraded septic tank was a carbon dioxide sink.

Dominique Claveau-mallet - One of the best experts on this subject based on the ideXlab platform.

  • Phosphorus removal and carbon dioxide capture in a pilot conventional septic system upgraded with a sidestream steel slag filter
    Water, 2020
    Co-Authors: Dominique Claveau-mallet, Hatim Seltani, Yves Comeau
    Abstract:

    The objective of this work was to demonstrate the removal of the phosphorus and carbon dioxide capture potential of a conventional septic system upgraded with a sidestream steel slag filter used in recirculation mode. A pilot scale sidestream experiment was conducted with two septic tank and drainfield systems, one with and one without a sidestream slag filter. The experimental system was fed with real domestic wastewater. Recirculation ratios of 25%, 50% and 75% were tested. Limestone Soils and non-calcareous Soils were used as drainfield media. The tested system achieved a satisfactory compromise between phosphorus removal and pH at the effluent of the septic tank, thus eliminating the need for a neutralization step. The phosphorus removal efficiency observed in the second compartment of the septic tank was 30% in the slag filter upgraded system, compared to −3% in the control system. The slag filter reached a phosphorus retention of 105 mg/kg. The drainfield of non-calcareous Soils achieved very high phosphorus removal in both control and upgraded systems. In the drainfield of Limestone soil, the slag filtration reduced the groundwater phosphorus contamination load by up to 75%. The removal of chemical oxygen demand of the drainfields was not affected by the pH rise induced by the slag filter. Phosphorus removal in the septic tank with a slag filter was attributed to either sorption on newly precipitated calcium carbonate, or the precipitation of phosphate minerals, or both. Recirculation ratio design criteria were proposed based on simulations. Simulations showed that the steel slag filter partly inhibited the biological production of carbon dioxide in the septic tank. The influent alkalinity strongly influenced the recirculation ratio needed to raise the pH in the septic tank. The recirculation mode allowed clogging mitigation compared to a mainstream configuration, because an important part of chemical precipitation occurred in the septic tank. The control septic tank produced carbon dioxide, whereas the slag filter-upgraded septic tank was a carbon dioxide sink.

  • Phosphorus Removal and Carbon Dioxide Capture in a Pilot Conventional Septic System Upgraded with a Sidestream Steel Slag Filter
    2019
    Co-Authors: Dominique Claveau-mallet, Hatim Seltani, Yves Comeau
    Abstract:

    The objective of this work was to evaluate the removal of phosphorus and carbon dioxide capture of a conventional septic system upgraded with a sidestream steel slag filter used in recirculation mode. A pilot scale sidestream experiment was conducted with two septic tank and drainfield systems, one with and one without a sidestream slag filter. The experimental system was fed with real domestic wastewater. Recirculation ratios of 25%, 50% and 75% were tested. Limestone Soils and silica Soils were used as drainfield media. The phosphorus removal efficiency observed in the second compartment of the septic tank was 30% in the slag filter upgraded system, compared to -3% in the control system. The drainfield of silica Soils achieved very high phosphorus removal in both control and upgraded systems. In the drainfield of Limestone soil, the slag filtration reduced the groundwater phosphorus contamination load by up to 75%. Phosphorus removal in the septic tank with a slag filter was attributed to either sorption on newly precipitated calcium carbonate or precipitation of vivianite, or both. Recirculation ratio design criteria were proposed based on simulations. Simulations showed that the steel slag filter partly inhibited biological production of carbon dioxide in the septic tank. The influent alkalinity strongly influenced the recirculation ratio needed to raise the pH in the septic tank. The control septic tank produced carbon dioxide, whereas the slag filter upgraded septic tank was a carbon dioxide sink.

Czesława Trąba - One of the best experts on this subject based on the ideXlab platform.

  • Zachwaszczenie roślin uprawnych na różnych glebach otuliny Roztoczańskiego Parku Narodowego. Część I. Zboża ozime i jare [Weed infestation of crops in different Soils in the protective zone of Roztocze National Park. Part I. Winter and spring cereals
    Acta Agrobotanica, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of crops in different Soils in the protective zone of RPN was conducted in the years 1991-1995. The characterization of weed infestation of winter and spring cereals was based on 306 phytosociological records. made with the use of Braun-Blanquet method. The degree of weed infestation in the fields in the protective zone of RPN depended on environment conditions. Both winter and spring cereals in majority of Soils were most infested by: Cenaturea cyanus, Apera spica-venti and Vicia hirsta . In the lightest podsolic Soils, made of loose sand and slightly loamy sand. winter and spring cereals were additionally infested by Equisetum arvense and two acidophylic species: Seleranthus annuus and Spergula arvensis . The crops in brown loess soil were infested by Matricaria maritima subsp. inodora . The most difficult weed species in brown soil formed from gaizes and Limestone soil were: Convolvulus arvensis, Papaver rhoeas and Galium aparine . Moreover winter cercals in Limestone soil showed high or medium infestation with Consolida regalis, Aethusa cynapium, Lathyrus tuberosus and low infestation with Apera spica-venti and Centaurea cyanus . Spring cereals were less infested than winter cereals. Apera spica-venti and Centaurea cyanus were less common with spring cereals than with winter cereals. Also, spring cereals showed high or medium infestation with Convolvulus arvensis . Spring cereals in some soil units were infested by Chenopodium album and Stellaria media . There was also higher infestation of spring cereals in Limestone Soils with Avena fatua, Veronica persica, Sinapis arvensis and Sonchus arvensis , compared to winter cereals in Limestone Soils.

  • Zachwaszczenie roślin uprawnych na różnych glebach otuliny Roztoczańskiego Parku Narodowego. Część II. Uprawy okopowe [Weed infestation of field crops in different Soils in the protective zone of Roztocze National Park. Part II. Root crops]
    Acta Agrobotanica, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of root crops in different Soils in the protective zone of Roztocze National Park was conducted in the years 1991-1995. As many as 240 phytosociological records, made with the use of Braun-Blanquet method, were taken in potato and sugar beet fields. The number of weed species in sugar beet and potato in the area depended on the soil and type of root crop. In the same environment conditions. the iiuinber of weed species was higher in potato than in sugar beet. The most difficult weed species iii all types of soil were: Chenopodium album, Stellaria media and Convolvulus arvensis . Podsolic Soils were highly infested by two acidophylic species: Spergula arvensis and Raphanus raphanistum . Potato in loess soil and brown soil made of loamy sands were highly infested by Echinochloa crus-galli, Equisetum arvense and Galinsoga parviflora . Root crop plantations in brown Soils formed from gaizes of granulometric loam texture and Limestone Soils were infested by: Galium aparine, Sonchus arvensis, Sinapis arvensis and Veronica persica .

  • Weed infestation of field crops in different Soils in the protective zone of Roztocze National Park. Part II. Root crops
    Polish Botanical Society, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of root crops in different Soils in the protective zone of Roztocze National Park was conducted in the years 1991-1995. As many as 240 phytosociological records, made with the use of Braun-Blanquet method, were taken in potato and sugar beet fields. The number of weed species in sugar beet and potato in the area depended on the soil and type of root crop. In the same environment conditions. the iiuinber of weed species was higher in potato than in sugar beet. The most difficult weed species iii all types of soil were: Chenopodium album, Stellaria media and Convolvulus arvensis. Podsolic Soils were highly infested by two acidophylic species: Spergula arvensis and Raphanus raphanistum. Potato in loess soil and brown soil made of loamy sands were highly infested by Echinochloa crus-galli, Equisetum arvense and Galinsoga parviflora. Root crop plantations in brown Soils formed from gaizes of granulometric loam texture and Limestone Soils were infested by: Galium aparine, Sonchus arvensis, Sinapis arvensis and Veronica persica

  • Weed infestation of crops in different Soils in the protective zone of Roztocze National Park. Part I. Winter and spring cereals
    Polish Botanical Society, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of crops in different Soils in the protective zone of RPN was conducted in the years 1991-1995. The characterization of weed infestation of winter and spring cereals was based on 306 phytosociological records. made with the use of Braun-Blanquet method. The degree of weed infestation in the fields in the protective zone of RPN depended on environment conditions. Both winter and spring cereals in majority of Soils were most infested by: Cenaturea cyanus, Apera spica-venti and Vicia hirsta. In the lightest podsolic Soils, made of loose sand and slightly loamy sand. winter and spring cereals were additionally infested by Equisetum arvense and two acidophylic species: Seleranthus annuus and Spergula arvensis. The crops in brown loess soil were infested by Matricaria maritima subsp. inodora. The most difficult weed species in brown soil formed from gaizes and Limestone soil were: Convolvulus arvensis, Papaver rhoeas and Galium aparine. Moreover winter cercals in Limestone soil showed high or medium infestation with Consolida regalis, Aethusa cynapium, Lathyrus tuberosus and low infestation with Apera spica-venti and Centaurea cyanus. Spring cereals were less infested than winter cereals. Apera spica-venti and Centaurea cyanus were less common with spring cereals than with winter cereals. Also, spring cereals showed high or medium infestation with Convolvulus arvensis. Spring cereals in some soil units were infested by Chenopodium album and Stellaria media. There was also higher infestation of spring cereals in Limestone Soils with Avena fatua, Veronica persica, Sinapis arvensis and Sonchus arvensis, compared to winter cereals in Limestone Soils

Hatim Seltani - One of the best experts on this subject based on the ideXlab platform.

  • Phosphorus removal and carbon dioxide capture in a pilot conventional septic system upgraded with a sidestream steel slag filter
    Water, 2020
    Co-Authors: Dominique Claveau-mallet, Hatim Seltani, Yves Comeau
    Abstract:

    The objective of this work was to demonstrate the removal of the phosphorus and carbon dioxide capture potential of a conventional septic system upgraded with a sidestream steel slag filter used in recirculation mode. A pilot scale sidestream experiment was conducted with two septic tank and drainfield systems, one with and one without a sidestream slag filter. The experimental system was fed with real domestic wastewater. Recirculation ratios of 25%, 50% and 75% were tested. Limestone Soils and non-calcareous Soils were used as drainfield media. The tested system achieved a satisfactory compromise between phosphorus removal and pH at the effluent of the septic tank, thus eliminating the need for a neutralization step. The phosphorus removal efficiency observed in the second compartment of the septic tank was 30% in the slag filter upgraded system, compared to −3% in the control system. The slag filter reached a phosphorus retention of 105 mg/kg. The drainfield of non-calcareous Soils achieved very high phosphorus removal in both control and upgraded systems. In the drainfield of Limestone soil, the slag filtration reduced the groundwater phosphorus contamination load by up to 75%. The removal of chemical oxygen demand of the drainfields was not affected by the pH rise induced by the slag filter. Phosphorus removal in the septic tank with a slag filter was attributed to either sorption on newly precipitated calcium carbonate, or the precipitation of phosphate minerals, or both. Recirculation ratio design criteria were proposed based on simulations. Simulations showed that the steel slag filter partly inhibited the biological production of carbon dioxide in the septic tank. The influent alkalinity strongly influenced the recirculation ratio needed to raise the pH in the septic tank. The recirculation mode allowed clogging mitigation compared to a mainstream configuration, because an important part of chemical precipitation occurred in the septic tank. The control septic tank produced carbon dioxide, whereas the slag filter-upgraded septic tank was a carbon dioxide sink.

  • Phosphorus Removal and Carbon Dioxide Capture in a Pilot Conventional Septic System Upgraded with a Sidestream Steel Slag Filter
    2019
    Co-Authors: Dominique Claveau-mallet, Hatim Seltani, Yves Comeau
    Abstract:

    The objective of this work was to evaluate the removal of phosphorus and carbon dioxide capture of a conventional septic system upgraded with a sidestream steel slag filter used in recirculation mode. A pilot scale sidestream experiment was conducted with two septic tank and drainfield systems, one with and one without a sidestream slag filter. The experimental system was fed with real domestic wastewater. Recirculation ratios of 25%, 50% and 75% were tested. Limestone Soils and silica Soils were used as drainfield media. The phosphorus removal efficiency observed in the second compartment of the septic tank was 30% in the slag filter upgraded system, compared to -3% in the control system. The drainfield of silica Soils achieved very high phosphorus removal in both control and upgraded systems. In the drainfield of Limestone soil, the slag filtration reduced the groundwater phosphorus contamination load by up to 75%. Phosphorus removal in the septic tank with a slag filter was attributed to either sorption on newly precipitated calcium carbonate or precipitation of vivianite, or both. Recirculation ratio design criteria were proposed based on simulations. Simulations showed that the steel slag filter partly inhibited biological production of carbon dioxide in the septic tank. The influent alkalinity strongly influenced the recirculation ratio needed to raise the pH in the septic tank. The control septic tank produced carbon dioxide, whereas the slag filter upgraded septic tank was a carbon dioxide sink.

Marta Ziemińska-smyk - One of the best experts on this subject based on the ideXlab platform.

  • Zachwaszczenie roślin uprawnych na różnych glebach otuliny Roztoczańskiego Parku Narodowego. Część I. Zboża ozime i jare [Weed infestation of crops in different Soils in the protective zone of Roztocze National Park. Part I. Winter and spring cereals
    Acta Agrobotanica, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of crops in different Soils in the protective zone of RPN was conducted in the years 1991-1995. The characterization of weed infestation of winter and spring cereals was based on 306 phytosociological records. made with the use of Braun-Blanquet method. The degree of weed infestation in the fields in the protective zone of RPN depended on environment conditions. Both winter and spring cereals in majority of Soils were most infested by: Cenaturea cyanus, Apera spica-venti and Vicia hirsta . In the lightest podsolic Soils, made of loose sand and slightly loamy sand. winter and spring cereals were additionally infested by Equisetum arvense and two acidophylic species: Seleranthus annuus and Spergula arvensis . The crops in brown loess soil were infested by Matricaria maritima subsp. inodora . The most difficult weed species in brown soil formed from gaizes and Limestone soil were: Convolvulus arvensis, Papaver rhoeas and Galium aparine . Moreover winter cercals in Limestone soil showed high or medium infestation with Consolida regalis, Aethusa cynapium, Lathyrus tuberosus and low infestation with Apera spica-venti and Centaurea cyanus . Spring cereals were less infested than winter cereals. Apera spica-venti and Centaurea cyanus were less common with spring cereals than with winter cereals. Also, spring cereals showed high or medium infestation with Convolvulus arvensis . Spring cereals in some soil units were infested by Chenopodium album and Stellaria media . There was also higher infestation of spring cereals in Limestone Soils with Avena fatua, Veronica persica, Sinapis arvensis and Sonchus arvensis , compared to winter cereals in Limestone Soils.

  • Zachwaszczenie roślin uprawnych na różnych glebach otuliny Roztoczańskiego Parku Narodowego. Część II. Uprawy okopowe [Weed infestation of field crops in different Soils in the protective zone of Roztocze National Park. Part II. Root crops]
    Acta Agrobotanica, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of root crops in different Soils in the protective zone of Roztocze National Park was conducted in the years 1991-1995. As many as 240 phytosociological records, made with the use of Braun-Blanquet method, were taken in potato and sugar beet fields. The number of weed species in sugar beet and potato in the area depended on the soil and type of root crop. In the same environment conditions. the iiuinber of weed species was higher in potato than in sugar beet. The most difficult weed species iii all types of soil were: Chenopodium album, Stellaria media and Convolvulus arvensis . Podsolic Soils were highly infested by two acidophylic species: Spergula arvensis and Raphanus raphanistum . Potato in loess soil and brown soil made of loamy sands were highly infested by Echinochloa crus-galli, Equisetum arvense and Galinsoga parviflora . Root crop plantations in brown Soils formed from gaizes of granulometric loam texture and Limestone Soils were infested by: Galium aparine, Sonchus arvensis, Sinapis arvensis and Veronica persica .

  • Weed infestation of field crops in different Soils in the protective zone of Roztocze National Park. Part II. Root crops
    Polish Botanical Society, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of root crops in different Soils in the protective zone of Roztocze National Park was conducted in the years 1991-1995. As many as 240 phytosociological records, made with the use of Braun-Blanquet method, were taken in potato and sugar beet fields. The number of weed species in sugar beet and potato in the area depended on the soil and type of root crop. In the same environment conditions. the iiuinber of weed species was higher in potato than in sugar beet. The most difficult weed species iii all types of soil were: Chenopodium album, Stellaria media and Convolvulus arvensis. Podsolic Soils were highly infested by two acidophylic species: Spergula arvensis and Raphanus raphanistum. Potato in loess soil and brown soil made of loamy sands were highly infested by Echinochloa crus-galli, Equisetum arvense and Galinsoga parviflora. Root crop plantations in brown Soils formed from gaizes of granulometric loam texture and Limestone Soils were infested by: Galium aparine, Sonchus arvensis, Sinapis arvensis and Veronica persica

  • Weed infestation of crops in different Soils in the protective zone of Roztocze National Park. Part I. Winter and spring cereals
    Polish Botanical Society, 2013
    Co-Authors: Marta Ziemińska-smyk, Czesława Trąba
    Abstract:

    The study on weed infestation of crops in different Soils in the protective zone of RPN was conducted in the years 1991-1995. The characterization of weed infestation of winter and spring cereals was based on 306 phytosociological records. made with the use of Braun-Blanquet method. The degree of weed infestation in the fields in the protective zone of RPN depended on environment conditions. Both winter and spring cereals in majority of Soils were most infested by: Cenaturea cyanus, Apera spica-venti and Vicia hirsta. In the lightest podsolic Soils, made of loose sand and slightly loamy sand. winter and spring cereals were additionally infested by Equisetum arvense and two acidophylic species: Seleranthus annuus and Spergula arvensis. The crops in brown loess soil were infested by Matricaria maritima subsp. inodora. The most difficult weed species in brown soil formed from gaizes and Limestone soil were: Convolvulus arvensis, Papaver rhoeas and Galium aparine. Moreover winter cercals in Limestone soil showed high or medium infestation with Consolida regalis, Aethusa cynapium, Lathyrus tuberosus and low infestation with Apera spica-venti and Centaurea cyanus. Spring cereals were less infested than winter cereals. Apera spica-venti and Centaurea cyanus were less common with spring cereals than with winter cereals. Also, spring cereals showed high or medium infestation with Convolvulus arvensis. Spring cereals in some soil units were infested by Chenopodium album and Stellaria media. There was also higher infestation of spring cereals in Limestone Soils with Avena fatua, Veronica persica, Sinapis arvensis and Sonchus arvensis, compared to winter cereals in Limestone Soils