Current Perspective on Irrigation and Drainage, 2017
While urbanization and increasing population has put much pressure on natural drainage channels a... more While urbanization and increasing population has put much pressure on natural drainage channels and resulted in increase in flooding, there is increased pressure on available water resources due to climate change, reduction in frequency of rainfall events and drought. The emergence of a sustainable drainage system (SuDS), also known as best deliver the three cardinal paradigms of sustainable drainage: quantity, quality and amenity and as such, they can offer an additional benefit for applications such as landscape irrigation. Most SuDS techniques have the potential for water storage with minimal or no modifications required. This chapter, while covering the capabilities of SuDS systems, explores SuDS devices such as pervious pavements equipped with excess storage capacity, cisterns and tanks harvesting roofwater, infiltration systems aimed at supporting the growth of urban plants and green roofs with the potential to store water in order to maintain water demanding planting scheme even during dry periods. It also covers systems where SuDS is the main driver to device installation and address issues and considerations surrounding applications of such systems in water harvesting for irrigation
ABSTRACT Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1... more ABSTRACT Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1FD, U.K. Tele: +44(0)1628 891589 Fax: +44(0)1628 472711 E-mail: [email protected] Home page: www.fwr.org
Recent legislation has promoted the use of Sustainable Drainage Systems (SUDS) in individual hous... more Recent legislation has promoted the use of Sustainable Drainage Systems (SUDS) in individual houses (Future Water, October 2008) and new build housing estates (Floods and Water Management Act). These pieces of legislation will integrate SUDS devices such as Porous Paving Systems (PPS) into housing estates where their management will fall to the individual householder. There are currently no guidelines for the application of herbicides to remove weeds growing on the PPS surface. Whilst it is well known that herbicides break down fairly readily in the environment, particularly when in contact with soil, it is not known how the application of herbicide will affect the ability of the PPS to break down hydrocarbons or trap particulate-associated pollutants. Research carried out at Coventry University (e.g. Coupe et al., 2003) showed that biofilms are central to this water quality role and that they are adversely affected by herbicide addition. This paper reports on small-scale laboratory...
Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1FD, U.K. ... more Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1FD, U.K. Tele: +44(0)1628 891589 Fax: +44(0)1628 472711 E-mail: [email protected] Home page: www.fwr.org
Most available water resources in the world are used for agricultural irrigation. Whilst this lev... more Most available water resources in the world are used for agricultural irrigation. Whilst this level of water use is expected to increase due to rising world population and land use, available water resources are expected to become limited due to climate change and uneven rainfall distribution. Recycled stormwater has the potential to be used as an alternative source of irrigation water and part of sustainable water management strategy. This paper reports on a study to investigate whether a sustainable urban drainage system (SUDS) technique, known as the pervious pavements system (PPS) has the capability to recycle water that meets irrigation water quality standard. Furthermore, the experiment provided information on the impact of hydrocarbon (which was applied to simulate oil dripping from parked vehicles onto PPS), leaching of nutrients from different layers of the PPS and effects of nutrients (applied to enhance bioremediation) on the stormwater recycling efficiency of the PPS. A ...
Pervious Pavement Systems are Sustainable Drainage devices that meet the three-fold SUDS function... more Pervious Pavement Systems are Sustainable Drainage devices that meet the three-fold SUDS functions of stormwater quantity reduction, quality improvement and amenity benefits. This paper reports on a study to determine the impact of different concentrations of glyphosate-containing herbicides on non-target microorganisms and on the pollutant retention performance of PPS. The experiment was conducted using 0.0484 m(2) test rigs based on a four-layered design. Previous studies have shown that PPS can trap up to 98.7% of applied hydrocarbons, but results of this study show that application of glyphosate-containing herbicides affected this capability as 15%, 9% and 5% of added hydrocarbons were released by high (7200 mg L(-1)), medium (720 mg L(-1)) and low (72 mg L(-1)) glyphosate-containing herbicides concentrations respectively. The concentrations of nutrients released also indicate a potential for eutrophication if these effluents were to infiltrate into aquifers or be released into surface waters. The effect of glyphosate-containing herbicides application on the bacterial and fungal communities was slightly different; fungi exhibited a "top-down" trend as doses of 7200 mg L(-1) glyphosate-containing herbicides yielded the highest fungal growth whilst those with a concentration of 720 mg L(-1) glyphosate-containing herbicides applied yielded the highest bacterial growth. In the case of protists, doses of glyphosate-containing herbicides above 72 mg L(-1) were fatal, but they survived at the lower concentration, especially the ciliates Colpoda cucullus and Colpoda steinii thus indicating potential for their use as biomarkers of herbicide-polluted environments. Data also showed that at the lowest concentration of glyphosate-containing herbicides (72 mg L(-1)), biodegradation processes may not be affected as all trophic levels required for optimum biodegradation of contaminants were present.
World Environmental and Water Resources Congress 2017 , May 25, 2017
This paper reports on ongoing research into the potential use of a macro-pervious pavement system... more This paper reports on ongoing research into the potential use of a macro-pervious pavement system in central Scotland as a source of local irrigation water for use in the summer months. Chemical analysis revealed that, after the first application of de-icing salt in winter, the water has a sodium content which is too high for harvesting for irrigation use and that it remains so until the salt is flushed out by spring rains. However water collected in May was used in a growth trial and plants irrigated with this water showed no significant difference in growth compared to control plants irrigated with de-ionised water. With a view to facilitating maintenance of the system, a preliminary growth trial was used to investigate the effects of disposing of the liquid sludge from the system’s separator channels on adjacent planted areas. The results showed that there seems to be no deleterious effects on the plants used but further work would be required if long term effects are to be ruled out. - See more at: http://ascelibrary.org/doi/abs/10.1061/9780784480632.003#sthash.ZmK9X2eT.dpuf
Current Perspective on Irrigation and Drainage, 2017
While urbanization and increasing population has put much pressure on natural drainage channels a... more While urbanization and increasing population has put much pressure on natural drainage channels and resulted in increase in flooding, there is increased pressure on available water resources due to climate change, reduction in frequency of rainfall events and drought. The emergence of a sustainable drainage system (SuDS), also known as best deliver the three cardinal paradigms of sustainable drainage: quantity, quality and amenity and as such, they can offer an additional benefit for applications such as landscape irrigation. Most SuDS techniques have the potential for water storage with minimal or no modifications required. This chapter, while covering the capabilities of SuDS systems, explores SuDS devices such as pervious pavements equipped with excess storage capacity, cisterns and tanks harvesting roofwater, infiltration systems aimed at supporting the growth of urban plants and green roofs with the potential to store water in order to maintain water demanding planting scheme even during dry periods. It also covers systems where SuDS is the main driver to device installation and address issues and considerations surrounding applications of such systems in water harvesting for irrigation
ABSTRACT Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1... more ABSTRACT Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1FD, U.K. Tele: +44(0)1628 891589 Fax: +44(0)1628 472711 E-mail: [email protected] Home page: www.fwr.org
Recent legislation has promoted the use of Sustainable Drainage Systems (SUDS) in individual hous... more Recent legislation has promoted the use of Sustainable Drainage Systems (SUDS) in individual houses (Future Water, October 2008) and new build housing estates (Floods and Water Management Act). These pieces of legislation will integrate SUDS devices such as Porous Paving Systems (PPS) into housing estates where their management will fall to the individual householder. There are currently no guidelines for the application of herbicides to remove weeds growing on the PPS surface. Whilst it is well known that herbicides break down fairly readily in the environment, particularly when in contact with soil, it is not known how the application of herbicide will affect the ability of the PPS to break down hydrocarbons or trap particulate-associated pollutants. Research carried out at Coventry University (e.g. Coupe et al., 2003) showed that biofilms are central to this water quality role and that they are adversely affected by herbicide addition. This paper reports on small-scale laboratory...
Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1FD, U.K. ... more Foundation for Water Research Allen House, The Listons, Liston Road, Marlow, Bucks SL7 1FD, U.K. Tele: +44(0)1628 891589 Fax: +44(0)1628 472711 E-mail: [email protected] Home page: www.fwr.org
Most available water resources in the world are used for agricultural irrigation. Whilst this lev... more Most available water resources in the world are used for agricultural irrigation. Whilst this level of water use is expected to increase due to rising world population and land use, available water resources are expected to become limited due to climate change and uneven rainfall distribution. Recycled stormwater has the potential to be used as an alternative source of irrigation water and part of sustainable water management strategy. This paper reports on a study to investigate whether a sustainable urban drainage system (SUDS) technique, known as the pervious pavements system (PPS) has the capability to recycle water that meets irrigation water quality standard. Furthermore, the experiment provided information on the impact of hydrocarbon (which was applied to simulate oil dripping from parked vehicles onto PPS), leaching of nutrients from different layers of the PPS and effects of nutrients (applied to enhance bioremediation) on the stormwater recycling efficiency of the PPS. A ...
Pervious Pavement Systems are Sustainable Drainage devices that meet the three-fold SUDS function... more Pervious Pavement Systems are Sustainable Drainage devices that meet the three-fold SUDS functions of stormwater quantity reduction, quality improvement and amenity benefits. This paper reports on a study to determine the impact of different concentrations of glyphosate-containing herbicides on non-target microorganisms and on the pollutant retention performance of PPS. The experiment was conducted using 0.0484 m(2) test rigs based on a four-layered design. Previous studies have shown that PPS can trap up to 98.7% of applied hydrocarbons, but results of this study show that application of glyphosate-containing herbicides affected this capability as 15%, 9% and 5% of added hydrocarbons were released by high (7200 mg L(-1)), medium (720 mg L(-1)) and low (72 mg L(-1)) glyphosate-containing herbicides concentrations respectively. The concentrations of nutrients released also indicate a potential for eutrophication if these effluents were to infiltrate into aquifers or be released into surface waters. The effect of glyphosate-containing herbicides application on the bacterial and fungal communities was slightly different; fungi exhibited a "top-down" trend as doses of 7200 mg L(-1) glyphosate-containing herbicides yielded the highest fungal growth whilst those with a concentration of 720 mg L(-1) glyphosate-containing herbicides applied yielded the highest bacterial growth. In the case of protists, doses of glyphosate-containing herbicides above 72 mg L(-1) were fatal, but they survived at the lower concentration, especially the ciliates Colpoda cucullus and Colpoda steinii thus indicating potential for their use as biomarkers of herbicide-polluted environments. Data also showed that at the lowest concentration of glyphosate-containing herbicides (72 mg L(-1)), biodegradation processes may not be affected as all trophic levels required for optimum biodegradation of contaminants were present.
World Environmental and Water Resources Congress 2017 , May 25, 2017
This paper reports on ongoing research into the potential use of a macro-pervious pavement system... more This paper reports on ongoing research into the potential use of a macro-pervious pavement system in central Scotland as a source of local irrigation water for use in the summer months. Chemical analysis revealed that, after the first application of de-icing salt in winter, the water has a sodium content which is too high for harvesting for irrigation use and that it remains so until the salt is flushed out by spring rains. However water collected in May was used in a growth trial and plants irrigated with this water showed no significant difference in growth compared to control plants irrigated with de-ionised water. With a view to facilitating maintenance of the system, a preliminary growth trial was used to investigate the effects of disposing of the liquid sludge from the system’s separator channels on adjacent planted areas. The results showed that there seems to be no deleterious effects on the plants used but further work would be required if long term effects are to be ruled out. - See more at: http://ascelibrary.org/doi/abs/10.1061/9780784480632.003#sthash.ZmK9X2eT.dpuf
Uploads
Papers