phosphorus discharge Articles

  • A case study for upgrading existing carousel process to achieve low effluent phosphorus discharges

    In this study, Al–Qateef wastewater treatment plant was selected as a case representing the upgrade of carrousel technology with tertiary treatment. This technology is applied in many cities in the Eastern province, Kingdom of Saudi Arabia. The use of chemical treatment alternative for phosphorous removal was evaluated versus the newly implemented tertiary treatment unit. The study showed that ...


    By Inderscience Publishers

  • Characterization of phosphorus sources in rural watersheds

    Received for publication February 21, 2008. Correct identification of P sources in rural watersheds is critical for the development of cost-effective measures to combat agriculturally-driven eutrophication. The chemical composition of various storm runoff types (field surface runoff, field drain outfalls, roads, farmyards, and septic tanks) and the receiving streams in three micro (<10 km2) ...

  • Pulp and paper mill aerated lagoon phosphorus optimization

    The Domtar (formerly Weyerhaeuser) Kamloops, BC bleached Kraft pulp mill discharges treated process wastewater to the Thompson River. The River and downstream Kamloops Lake have historically been identified as nutrient sensitive, with phosphorus contributing to algal growth. The BC Ministry of the Environment required that the mill perform a phosphorus optimization study to minimize phosphorus ...

  • Preliminary analysis of phosphorus flow in Hue Citadel

    Characteristics of waste and wastewater management can affect material flows. Our research investigates the management of waste and wastewater in urban areas of developing countries and its effects on phosphorus flow based on a case study in Hue Citadel, Hue, Vietnam. One hundred households were interviewed to gain insight into domestic waste and wastewater management together with secondary ...


    By IWA Publishing

  • Chemical Phosphorus Removal from Onsite Generated Wastewater

    ABSTRACT Phosphorus originating from onsite generated wastewater is becoming recognized as a major cause of impairment to streams and lakes. Efficient, low maintenance technologies are needed to reduce discharge levels. Removing phosphorus using luxury uptake or precipitation followed by settling, as is common at municipal wastewater treatment plants, is not practical for onsite generated ...

  • Dairy Effluent Treatment - Total Phosphorus Monitoring

    Dairy Crest's Davidstow site operates a sophisticated effluent treatment plant to ensure that the local aquatic environment is protected. The treatment plant has been upgraded to keep pace with the expansion of the factory and a number of our monitoring instruments have been employed to make the operation of the plant as efficient as possible. During 2011, the Environment Agency approached Dairy ...


    By Partech (Electronics) Ltd.

  • Assessment of Nitrogen and Phosphorus Environmental Pressure at European Scale

    In surface water bodies, the increase in nutrient concentration above the natural background levels enhances the productivity, causing the phenomenon of eutrophication (Nixon, 1995). The euthrophication has been identified as a major cause of impaired water quality of rivers, lakes and estuaries (EEA, 2001; EEA, 1999; Carpenter et al. 1998; Meybeck, 1982). Agriculture is considered the main ...


  • Enhancement of phosphorus removal in a low temperature A2/O process by anaerobic phosphorus release of activated sludge

    An anaerobic phosphorus release tank was introduced to an anaerobic–anoxic–aerobic (A2/O) process treating domestic sewage to enhance the phosphorus removal at low temperature. Phosphorus release of the activated sludge from the second sedimentation tank was evaluated at 14 °C by batch cultures, and the nutrient removal in the modified low temperature A2/O process ...


    By IWA Publishing

  • Impact of carwash discharge on stormwater quality (Toulouse, France)

    The contribution of discharge from carwashes to pollutant levels in stormwater was evaluated. Five carwashes and two outlets in the city of Toulouse (France) were selected. Water samples were collected from December 2006 to December 2007. Concentrations and loadings of classical water quality parameters (conductivity, pH, turbidity, chemical oxygen demand, nitrogen, phosphorus, ammonium, nitrate, ...


    By IWA Publishing

  • Treatability and fate of various phosphorus fractions in different wastewater treatment processes

    The increasingly more stringent phosphorus (P) discharge limits, which are below the concentrations reliably achievable with currently available technologies, demand for better understanding of phosphorus removal mechanisms. This study investigated the compositional fractions of phosphorus (P) in various effluents as well as the efficacy of different levels of treatment processes for removing ...


    By IWA Publishing

  • AquaLab Analyzer provides real-time phosphorus measurement in Everglades

    When it comes to ecosystem sustainability, Florida is no backwater. The South Florida Water Management District, which includes the unique Everglades habitat, had a major challenge. The EPA and various governmental authorities have defined limits for many water quality parameters to support a water body’s designated use. Any physical, chemical or biological condition that threatens the designated ...

  • Relationships between benthic sediments and water column Phosphorus in Illinois streams

    Received for publication February 19, 2008. Sediments can be important in regulating stream water P concentrations, and this has implications for establishing nutrient standards that have not been fully investigated. We evaluated abiotic and biotic processes to better understand the role of sediments in determining stream water dissolved P concentrations. Sediment and stream water samples were ...

  • Simultaneous precipitation of phosphorus in a kraft pulp mill wastewater treatment plant

    Simultaneous precipitation (SP) using iron sulfates in the secondary treatment of elemental chlorine-free (ECF) kraft pulp mill wastewater was studied. In short-term pilot plant studies phosphorus reduction was improved from 58% up to 81% by adding 10 mgFe/L ferrous sulfate in the activated sludge (AS) process. The phosphorus reduction in full-scale experiment was about 80% ...


    By IWA Publishing

  • Improving biological phosphorus removal in membrane bioreactors – a pilot study

    With increasing water reuse applications and possible stringent regulations of phosphorus content in secondary and tertiary effluent discharge in Florida, USA, alternative technologies beyond conventional treatment processes require implementation to achieve low phosphorus (P) and nitrogen (N) concentrations. A pilot scale membrane bioreactor (MBR) system, operated in Florida, adopted the ...


    By IWA Publishing

  • Experiences with pre-precipitation of phosphorus in a vertical flow constructed wetland in Austria

    Using constructed wetlands (CWs) with vertical flow and intermittent loading, high organic matter and ammonium removal can be achieved. In the case of additional requirements for phosphorus removal, which in Austria often occurs if the treated wastewater is discharged into small sensitive receiving waters, additional measures have to be taken. The objective of this work was to investigate the ...


    By IWA Publishing

  • Towards a complete recycling of phosphorus in wastewater treatment – options in Germany

    Global reserves of mineral phosphorus are finite and the recycling of phosphorus from wastewater, a significant sink for phosphorus, can contribute to a more sustainable use. In Germany, Switzerland, and the Netherlands, an increasing percentage of municipal sewage sludge is incinerated and the contained phosphorus is lost. This paper reviews current technologies and shows that a complete ...


    By IWA Publishing

  • Leaching behavior of total organic carbon, nitrogen, and phosphorus from banana peel

    The leaching behavior of organic carbon and nutrient compounds from banana peel (BP) was investigated in batch assays with respect to particle size, contact time, pH value, and temperature. The granularity, contact time, pH, and temperature caused no significant effects on the leaching of total phosphorus (TP) from the BP. The maximum leached total nitrogen (TN) content was found at pH 5.0 and ...


    By IWA Publishing

  • Phosphorus Speciation Provides Direction to Produce 10 μg/L

    ABSTRACT Increasing demand to achieve very low effluent total phosphorus due to more stringent discharge limits have raised questions on the limits of available technologies and presented challenges of how to further the removal of phosphorus to extremely low levels (e.g 10 μg/L). This study investigated the phosphorus speciation in effluents from various available technologies, ...

  • Nitrogen and Phosphorus-Rich Sidestreams: Managing the Nutrient Merry-Go-Round

    ABSTRACTMany wastewater treatment plants (WWTPs) in the Midwest are facing nutrient removal for the first time, while plants in other parts of the US and the world are struggling with permits that become more stringent with each cycle. Depending on the permit, in-plant sidestreams generated during biosolids processing can greatly affect plant operations and performance, particularly when these ...

  • Cost benefit analysis of measures to reduce industrial effluent discharges

    In an environmentally harmonized society the most cost effective measures to reduce the total effluent discharges should be taken into account. Generalised discharge values are presented for organic material and nutrients in this paper. Depending on conditions in the receiving water any of these parameters can be the determining factor for the eutrophication and oxygen demand. These parameters ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you