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... The attenuation of bulk organics and trace organic contaminants (TOrCs) during an aquifer recharge recovery (ARR) coupled ozone (O3) treatment hybrid was evaluated in soil-batch and bench-scale ozonation simulations for wastewater reclamation and reuse. In this work, the role of biodegradation in th ...
... The attenuation of bulk organics and trace organic contaminants (TOrCs) during an aquifer recharge recovery (ARR) coupled ozone (O3) treatment hybrid was evaluated in soil-batch and bench-scale ozonation simulations for wastewater reclamation and reuse. In this work, the role of biodegradation in th ...
Ecosystems and Human Interference
... Atmospheric nitrogen is fixed by bacteria in order to make it available to plants. – Nodules on legume roots. Nitrification - Production of nitrates. Denitrification - Conversion of nitrate to nitrous oxide and nitrogen gas. – Balances nitrogen fixation. ...
... Atmospheric nitrogen is fixed by bacteria in order to make it available to plants. – Nodules on legume roots. Nitrification - Production of nitrates. Denitrification - Conversion of nitrate to nitrous oxide and nitrogen gas. – Balances nitrogen fixation. ...
MICROBES IN HUMAN WELFARE.pmd
... grit (soil and small pebbles) are removed by sedimentation. All solids that settle form the primary sludge, and the supernatant forms the effluent. The effluent from the primary Figure 10.6 Secondary treatment settling tank is taken for secondary treatment. Secondary treatment or Biological treatmen ...
... grit (soil and small pebbles) are removed by sedimentation. All solids that settle form the primary sludge, and the supernatant forms the effluent. The effluent from the primary Figure 10.6 Secondary treatment settling tank is taken for secondary treatment. Secondary treatment or Biological treatmen ...
Myall Lakes Ramsar site ecological character description
... to be dominated by charophytes and the perennial seagrass Ruppia (Sainty and Jacobs 1981, 2003). The macrophyte beds form an important resource for macroinvertebrate, avian and fish fauna in the lakes. The annual macrophytes which dominate the Myall lakes vegetation are also thought to be the major ...
... to be dominated by charophytes and the perennial seagrass Ruppia (Sainty and Jacobs 1981, 2003). The macrophyte beds form an important resource for macroinvertebrate, avian and fish fauna in the lakes. The annual macrophytes which dominate the Myall lakes vegetation are also thought to be the major ...
Granulation - a unique example of biofilm formation
... Anaerobic digestion of sulphatecontaining wastewaters • Industrial wastewaters can, in general, be effectively treated using anaerobic digestion produces large quantities of methane which can be burned to generate electricity or for heating use of combined heat and power plants allows for genera ...
... Anaerobic digestion of sulphatecontaining wastewaters • Industrial wastewaters can, in general, be effectively treated using anaerobic digestion produces large quantities of methane which can be burned to generate electricity or for heating use of combined heat and power plants allows for genera ...
A novel process of dye wastewater treatment by linking advanced
... slightly decreased in COD removal efficiency when the H2O2 dosage was more than 2.5 mL/L. Similar trends of inhibition of organic substances degradation by excessively high H2O2 concentration in solution were also observed in the report (Namkung et al. 2005) that COD removal efficiency decreased to ...
... slightly decreased in COD removal efficiency when the H2O2 dosage was more than 2.5 mL/L. Similar trends of inhibition of organic substances degradation by excessively high H2O2 concentration in solution were also observed in the report (Namkung et al. 2005) that COD removal efficiency decreased to ...
Resource partitioning for soil phosphorus: a hypothesis
... et al. 2007). Although podocarps possess a variety of features that allow them to compete effectively under nutrient-poor conditions (Richardson et al. 2005a), an additional factor may therefore be that they are efficient at acquiring phosphorus from refractory soil organic phosphorus compounds. The ...
... et al. 2007). Although podocarps possess a variety of features that allow them to compete effectively under nutrient-poor conditions (Richardson et al. 2005a), an additional factor may therefore be that they are efficient at acquiring phosphorus from refractory soil organic phosphorus compounds. The ...
Nitrogen balance and fate in a heavily impacted
... nitrogen lateral and vertical migration and made the surface and groundwater more prone to nitrogen contamination (Balestrini et al., 2011). This risk is augmented by the use of large water volumes for irrigation and by traditional practices based on soil flooding over permeable areas, that enhance ...
... nitrogen lateral and vertical migration and made the surface and groundwater more prone to nitrogen contamination (Balestrini et al., 2011). This risk is augmented by the use of large water volumes for irrigation and by traditional practices based on soil flooding over permeable areas, that enhance ...
... phosphorus, nitrogen, and humic substances. Sewage sludge contains essential plant nutrients, primarily nitrogen and phosphorus. Depending on treatment method; sludge also contains approximately 30% organic matter. The organic matter in sludge is a key component to its success as an organic amendmen ...
Greywater Reuse: A Valuable Water Resource
... come into contact with wastewater from toilets and urinals (WHO 2006). Within the United States, wastewater from kitchen sinks is excluded and in some cases, prohibited by municipal regulation, from grewyater collection systems. Greywater comprises a large majority of a typical household’s overall w ...
... come into contact with wastewater from toilets and urinals (WHO 2006). Within the United States, wastewater from kitchen sinks is excluded and in some cases, prohibited by municipal regulation, from grewyater collection systems. Greywater comprises a large majority of a typical household’s overall w ...
Healthy Aquatic Ecosystems
... assessments at the regional or major-basin scale may not be readily available. There is a significant opportunity to collect data pertinent to large scale assessment while also fulfilling more routine site-level assessment requirements. Additional information will also be needed to properly assess t ...
... assessments at the regional or major-basin scale may not be readily available. There is a significant opportunity to collect data pertinent to large scale assessment while also fulfilling more routine site-level assessment requirements. Additional information will also be needed to properly assess t ...
doc - Nature`s Way Resources
... the soils ability to absorb water and air 3) fast release chemicals needlessly stress the grass making it more susceptible to insects, disease and injury. 4) slow-release fertilizers are coated with other materials that can further pollute the soil and environment 5) thatch greatly increase with the ...
... the soils ability to absorb water and air 3) fast release chemicals needlessly stress the grass making it more susceptible to insects, disease and injury. 4) slow-release fertilizers are coated with other materials that can further pollute the soil and environment 5) thatch greatly increase with the ...
phosphate equilibrium between stream sediments and water
... ABSTRACT. Sediments often play an important role in the temporary storage and release of phosphorus (P) in streams, especially streams receiving municipal wastewater treatment plant (WWTP) effluent. The objective of this study was to evaluate sediment−aqueous phase P equilibrium in four Ozark stream ...
... ABSTRACT. Sediments often play an important role in the temporary storage and release of phosphorus (P) in streams, especially streams receiving municipal wastewater treatment plant (WWTP) effluent. The objective of this study was to evaluate sediment−aqueous phase P equilibrium in four Ozark stream ...
Examples of Biocontrol Agents - E
... turnover of a reservoir depends on both the intensity of cycling and reservoir size. Biogeochemical cycling describes the movement and conversion of materials by biochemical activities throughout the atmosphere, hydrosphere and lithosphere. This cycling occurs on a global scale, profoundly affecting ...
... turnover of a reservoir depends on both the intensity of cycling and reservoir size. Biogeochemical cycling describes the movement and conversion of materials by biochemical activities throughout the atmosphere, hydrosphere and lithosphere. This cycling occurs on a global scale, profoundly affecting ...
Bulking and Foaming Filamentous in Modified Bardenpho Process
... and foaming are among the most important problems preventing effective solid-liquid separation. Although these problems have been known for more than half a century, no final or comprehensive solutions are available [3]. Filamentous bulking sludge, a term used to describe the excessive growth of fil ...
... and foaming are among the most important problems preventing effective solid-liquid separation. Although these problems have been known for more than half a century, no final or comprehensive solutions are available [3]. Filamentous bulking sludge, a term used to describe the excessive growth of fil ...
Measuring nitrous oxide emissions from biological
... locations (end of Zone 1 and beginning of Zone 2) at the same time. Both locations had the same diffuser density and received air from the same air header without throttling between the header and diffusers. Both hoods exhibited very similar concentrations and dynamics; however, the first hood, at t ...
... locations (end of Zone 1 and beginning of Zone 2) at the same time. Both locations had the same diffuser density and received air from the same air header without throttling between the header and diffusers. Both hoods exhibited very similar concentrations and dynamics; however, the first hood, at t ...
LCC/2014/0096 Preston New Road, Little Plumpton, Fylde Appendix
... Naturally occurring radioactive material (NORM) is present in many geological formations including oil and gas bearing strata such as shale formations. The flowback fluid that returns to the surface following hydraulic fracturing as well as the sediments and scales in gas or water process vessels, i ...
... Naturally occurring radioactive material (NORM) is present in many geological formations including oil and gas bearing strata such as shale formations. The flowback fluid that returns to the surface following hydraulic fracturing as well as the sediments and scales in gas or water process vessels, i ...
potenital impacts of on-site sewage disposal on groundwater
... and Futter, 2002; McGlinchey et al., 2002). However, some effects are not observable. Catchment assessments can show significant contamination of groundwater by bacteria (Morrissey, 2004, Bagdol, 2004) or nutrients (Middle, 1996) from on-site systems. In general, little is known about the scope of O ...
... and Futter, 2002; McGlinchey et al., 2002). However, some effects are not observable. Catchment assessments can show significant contamination of groundwater by bacteria (Morrissey, 2004, Bagdol, 2004) or nutrients (Middle, 1996) from on-site systems. In general, little is known about the scope of O ...
1. impacts of development on runoff
... dramatic changes in the way water moves through the environment. The removal of vegetation from the site has a significant impact on both the interception of precipitation and evapotranspiration, which results in more precipitation reaching the ground surface, and therefore an increase in the amount ...
... dramatic changes in the way water moves through the environment. The removal of vegetation from the site has a significant impact on both the interception of precipitation and evapotranspiration, which results in more precipitation reaching the ground surface, and therefore an increase in the amount ...
Poster Reuse of valuable components in manure
... • Recovery of Phosphorus (P) minerals which can be used as secondary resource for industries. • Recovery of Nitrogen (N) as ammonium sulphate or ammonium nitrate which are considered as acknowledged fertilizers. • Organic matter with a reduced N en P content which can be applied in the nearby region ...
... • Recovery of Phosphorus (P) minerals which can be used as secondary resource for industries. • Recovery of Nitrogen (N) as ammonium sulphate or ammonium nitrate which are considered as acknowledged fertilizers. • Organic matter with a reduced N en P content which can be applied in the nearby region ...
An innovative process that converts PVC waste into raw
... Recycling of PVC waste is a focus area in European environmental policy. PVC waste may hence be regarded as a potential resource instead of useless waste. Since 1998, the Danish company RGS 90 has made a great effort to develop a sustainable method for chemical recycling of PVC waste. RGS 90 has obt ...
... Recycling of PVC waste is a focus area in European environmental policy. PVC waste may hence be regarded as a potential resource instead of useless waste. Since 1998, the Danish company RGS 90 has made a great effort to develop a sustainable method for chemical recycling of PVC waste. RGS 90 has obt ...
4 - Virginia Water Resources Research Center
... ponds rely on gravitational settling as their primary pollutant removal mechanism. Consequently, they generally provide fair-to-good removal for particulate pollutants, but low or negligible removal for soluble pollutants, such as nitrate and soluble phosphorus. The use of ED alone generally results ...
... ponds rely on gravitational settling as their primary pollutant removal mechanism. Consequently, they generally provide fair-to-good removal for particulate pollutants, but low or negligible removal for soluble pollutants, such as nitrate and soluble phosphorus. The use of ED alone generally results ...
A New Technology for the Treatment of Mercury Contaminated
... flocculation of ferric sludge which contains lignin derivatives and the adsorbed mercury contaminants. The required amount of lignin derivatives, ferric chloride and hydrated lime are dependent on the properties of wastewater, such as, the level of metal contamination, hardness, pH, conductivity, et ...
... flocculation of ferric sludge which contains lignin derivatives and the adsorbed mercury contaminants. The required amount of lignin derivatives, ferric chloride and hydrated lime are dependent on the properties of wastewater, such as, the level of metal contamination, hardness, pH, conductivity, et ...
Ecosystems at Risk
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
Ecosystems at Risk
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
Constructed wetland
A constructed wetland (CW) is an artificial wetland created for the purpose of treating anthropogenic discharge such as municipal or industrial wastewater, stormwater runoff. It may also be created for land reclamation after mining, refineries, or other ecological disturbances such as required mitigation for natural areas lost to a development.Constructed wetlands are engineered systems that use natural functions of vegetation, soil, and organisms to treat different water streams. Depending on the type of wastewater that has to be treated the system has to be adjusted accordingly which means that pre- or post-treatments might be necessary.Constructed wetlands can be designed to emulate the features of natural wetlands, such as acting as a biofilter or removing sediments and pollutants such as heavy metals from the water. Some constructed wetlands may also serve as a habitat for native and migratory wildlife, although that is usually not their main purpose.The two main types of constructed wetlands are subsurface flow and surface flow wetlands. The planted vegetation plays a role in contaminant removal but the filter bed, consisting usually of a combination of sand and gravel, has an equally important role to play.