phosphorus removal Articles

  • Manitou Drive Biosolids Drying Facility - Case Study

    About the Project The WWTP is a conventional activated sludge process with chemical phosphorus removal, anaerobic sludge digestion and sodium hypochlorite disinfection, and has a rated design capacity of 123 million litres/day (MLD). The treated effluent is discharged to the Grand ...


    By Biorem Technologies Inc.

  • Considerations for the design and operation of a membrane bioreactor

    This paper reviews recent advances in research focusing on the design and operation of a membrane bioreactor and including methodologies for determining the timing for hydraulic and sludge retention, sludge concentration optimisation, the removal of nitrogen and phosphorus, membrane fouling control, and the analysis of processing economics.Keywords: membrane bioreactors, activated sludge, ...


    By Inderscience Publishers

  • Manitou Drive Biosolids Drying Facility – Application Profile - Case Study

    About the Project The WWTP is a conventional activated sludge process with chemical phosphorus removal, anaerobic sludge digestion and sodium hypochlorite disinfection, and has a rated design capacity of 123 million litres/day (MLD). The treated effluent is discharged to the Grand ...


    By Biorem Technologies Inc.

  • Inhibitory effect of copper on enhanced biological phosphorus removal

    Copper inhibition of enhanced biological phosphorus removal (EBPR) was examined in batch experiments under anaerobic and aerobic conditions. Inhibition was represented by both acetate uptake and phosphorus release coefficients under anaerobic conditions, and by a phosphorus uptake coefficient under aerobic conditions. The results showed that copper inhibition of EBPR occurred mainly during ...


    By IWA Publishing

  • Enhanced phosphorus removal by microbial-collaborating sponge iron

    The collaborative and mutually reinforcing phosphorus removal in domestic wastewater in a sponge iron and microorganisms system was studied through a laboratory and a pilot scale experiment. The results showed that the total phosphorus concentration of the effluent of less than 0.5 mg/L could be achieved. The results also support that the biochemical reaction accelerated the iron ...


    By IWA Publishing

  • Porous structure and spatial characteristics of aerobic granules

    Cryosectioned granules were observed in microstructure, Extracellur Polymeric Substances (EPS) and metal distribution. Aerobic granules composed of pores and channels that were not plugged by EPS, with rather open structure. Microorganisms proliferated mainly on the surface of granule and on the wall of channels, carbohydrate EPS mainly distributed on the surface of granules, and protein EPS ...


    By Inderscience Publishers

  • Study on Fully Coupled Activated Sludge Model No. 1 (FCASM1) for wastewater treatment biological processes

    Nowadays many types of model based on the Activated Sludge Models (ASMs) have been developed. Most of them supposed that all the substrate removal processes are independent. Based on the mechanism of the interaction among microorganisms and considering the interaction among the processes of organisms oxidation, nitrifying, denitrifying and biological phosphorus removal, Fully Coupled Activated ...


    By Inderscience Publishers

  • Assessment of nitrogen and phosphorus removal in an intermittently aerated sequencing batch reactor (IASBR) and a sequencing batch reactor (SBR)

    Biological nitrogen and phosphorus removal was investigated in an intermittently aerated sequencing batch reactor (IASBR) and a sequencing batch reactor (SBR). The removal efficiencies of ammonium-nitrogen (NH4+-N) were 100% in both reactors in steady operation state. The total nitrogen (TN) removal efficiencies were 90.4% in the IASBR and 79.3% in the SBR, ...


    By IWA Publishing

  • Nutrient removal ability and resistance of five hydrophytes under low-temperature conditions

    Five indigenous hydrophytes were studied for removal of nitrogen and phosphorus at different nutrition levels by artificial imitation of the low-temperature weather conditions of the Taihu lake area. The rate of nitrogen and phosphorus uptake was dependent on the nutrient concentrations and a positive correlation between the prolines of hydrophytes and the latter were found. High percentages of ...


    By Inderscience Publishers

  • Application of reversed A2/O process on removing nitrogen and phosphorus from municipal wastewater in China

    The application of reversed A2/O process in practice in China is mainly discussed in this paper. As a new process on nitrogen and phosphorus removal, principle and technical features of reversed A2/O process are also summarized. The application in rebuilt wastewater treatment plant shows that reversed A2/O process not only has merits on high nitrogen and phosphorus removal efficiency, but also ...


    By IWA Publishing

  • Comparison of nutrient-removing microbial communities in activated sludge from full-scale MBRs and conventional plants

    The composition of nutrient-removing microbial communities in five full-scale membrane bioreactors (MBRs) was investigated using fluorescence in situ hybridization and 16S rRNA pyrosequencing and compared to similar analyses of conventional activated sludge (CAS) communities. The communities were highly similar but some genera that are always present in enhanced biological phosphorus removal ...


    By IWA Publishing

  • Remediation of polluted river water by biological contact oxidation process using two types of carriers

    Biological contact oxidation technology was used to remediate the polluted river water in Hanyang, China. The purification effect of the polluted river water in three simulated rivers was investigated using two different carriers, i.e., AquaMats made in USA and semi flexible supports made in China. The results showed that when the hydraulic loading rate increased, purification effect in terms of ...


    By Inderscience Publishers

  • Enhancing biological phosphorus removal with glycerol

    An enhanced biological phosphorus removal process (EBPR) was successfully operated in presence of acetate. When glycerol was substituted for acetate in the feed the EBPR process failed. Subsequently waste activated sludge (WAS) from the reactor was removed to an off-line fermenter. The same amount of glycerol was added to the WAS fermenter which led to significant volatile fatty acids (VFA) ...


    By IWA Publishing

  • Enhanced Biological Phosphorus Removal within Membrane Bioreactors

    Several Membrane Bioreactor (MBR) facilities have been constructed with the intent of providing Enhanced Biological Phosphorus Removal (EBPR), and several additional such plants are being designed and constructed. Full-scale plant information is now available for process designers to better understand the unique design and operating issues associated with the incorporation of EBPR designs in ...

  • Study of oyster shell as a potential substrate for constructed wetlands

    We tested the suitability of oyster shell (OS) as a substrate for phosphorus removal in constructed wetlands (CWs) treating swine wastewater. OS is proven to have a significant phosphorus adsorption capacity; significant phosphorus removal was achieved in vertical subsurface flow constructed wetlands (VSSFs) that were filled with OS and used to treat swine wastewater. In the VSSF system, OS ...


    By IWA Publishing

  • Significance of Phosphorus in Anaerobic Digestion Residuals Recovery

    Gas production and energy potential typically dominate the spotlight in the anaerobic digestion (AD) technology world, while benefits of residues and nutrient management from AD are overshadowed. However, utilizing AD residues and considering the value of properly managing nutrients, such as phosphorus, may make-or-break projects considered uneconomical based on energy production value alone. ...


    By BIOFerm™ Energy Systems

  • Linking sanitation and wastewater treatment (WST)

    In both developed and developing countries, centralised and on-site wastewater treatment systems have been developed for a long time. The main function of the wastewater treatment plants (WWTPs) should be removal of pollutants including organic carbon, nitrogen and phosphorus. Technologies applied to WWTPs are mostly with biological functions such as activated sludge, stabilization reservoir, ...


    By IWA Publishing

  • Steady State Model for Biological P Removal

    This steady-state model for biological P removal comes from Biological Phosphorus Removal: Manual for design and operation, published by IWA Publishing (2002). The steady-state bio-P model is represented in an Excel spreadsheet, ...


    By IWA Publishing

  • Study of oyster shell as a potential substrate for constructed wetlands

    We tested the suitability of oyster shell (OS) as a substrate for phosphorus removal in constructed wetlands (CWs) treating swine wastewater. OS is proven to have a significant phosphorus adsorption capacity; significant phosphorus removal was achieved in vertical subsurface flow constructed wetlands (VSSFs) that were filled with OS and used to treat swine wastewater. In the VSSF system, OS ...


    By IWA Publishing

  • Nutrient Control Design Manual

    The purpose of this EPA design manual is to provide updated, state‐of‐the‐technology design guidance on nitrogen and phosphorus control at municipal Wastewater Treatment Plants (WWTPs). Similar to previous EPA manuals, this manual contains extensive information on the principles of biological nutrient removal and chemical phosphorus removal to serve as the basis for design. A ...


    By IWA Publishing

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