polymer dosing technology Articles

  • Influence of nanoparticles on the polymer-conditioned dewatering of wastewater sludges

    The effect of using small-scale, high surface area, nanoparticles to supplement polymer-conditioned wastewater sludge dewatering was investigated. Aerobically digested sludge and waste activated sludge sourced from the Hunter Valley, NSW, Australia, were tested with titanium dioxide nanoparticles. The sludge samples were dosed with the nanoparticles in an attempt to adsorb a component of the ...


    By IWA Publishing

  • Whole Life Costs and pumping Technology – Peristaltics Increasingly Out on Top

    Untitled Document Whole life costs are playing an ever-more important role in pump selection by the water and wastewater industry. Interestingly, energy use is no longer the ...

  • Accuracy and Cost Savings from Automatic Optimization of Dewatering

    Improvements in sensor and automation technology in recent years have made it possible to design a system to control the key variable parameters in and around the dewatering process. By continuously analyzing feed conditions and output from the process, an automated optimization system can make necessary proactive adjustments to the internal settings of the dewatering equipment, the polymer ...

  • Evaluation of Compliance Strategies to Meet Stringent Effluent Copper Limits

    The objective of this evaluation was to determine the optimal means for the City of Puyallup, Washington to comply with stringent wastewater treatment plant effluent copper limits through bench and pilot testing of possible approaches. A source evaluation determined that corrosion of domestic and commercial plumbing was the primary source of copper in wastewater entering Puyallup’s Water ...

  • Comparison of centrifuge and belt press for compressible digested sludge after thermal hydrolysis

    ABSTRACT Historically it has been shown on many projects that centrifuges can outperform belt presses in dewatering digested sludge. However results from a number of projects where sludge has been treated before digestion with Cambi thermal hydrolysis process (THP) have shown good results for belt press dewatering – generally greater than 30% DS. The authors propose that the main mechanism in ...


    By Cambi AS

  • Mono nov tailors pumping solutions for allied colloids

    Based in Bradford, Allied Colloids’ Engineering Equipment division is responsible for providing customers withthe appropriate technology to ensure that the chemicals manufactured by its production division are utilised efficiently. A number of pumps were required to fulfil two main duties on the flocculant preparation and dosing rigs; a largerpump to transfer the mixed and aged flocculant at ...


    By NOV Mono - Mono Pumps Ltd

  • City of Orlando Wastewater Treatment Plant Belt Filter Press Struvite Scale Control & Enhanced Flocculation case study

    Five month evaluation of Hydropath technology’s ability to treat magnesium ammonium phosphate hexahydrate (Struvite, NH₄MgPO₄•6H₂O) scale and to enhance flocculation resulting in reduced polymer usage Location: City of Orlando Wastewater Treatment Plant. Address: 5100 LB McLeod Rd., Orlando, FL 32811 Application: Struvite accumulation in ...


    By HydroFLOW USA

  • Dewatering project in Almeirim (Portugal) - case study

    TenCate Geosynthetics has supplied TenCate Geotube® containers for a dewatering project in Almeirim (Portugal), which involves the removal and dewatering of organic sludge. This first project in Portugal is the result of cooperation between TenCate Geosynthetics, Ashland Hercules Water Technologies and Geosin, the local partner. TenCate Geosynthetics and Ashland Hercules Water Technologies ...

  • Application of Direct Filtration to MIEX® Treated River Murray Water

    Dissolved natural organic matter (NOM) has been shown to interfere with the coagulation process, particularly with alum (aluminium sulphate) which is the most widely used coagulant in potable water treatment. The additional coagulant demand of the NOM can often be a significant contribution to the overall coagulant dose required for effective turbidity control in conventional water treatment. The ...


    By IXOM Watercare

  • City of Stromsburg, Nebraska - Case Study

    In May 2011, AdEdge Water Technologies was selected among other vendors by Miller & Associates to supply a turnkey arsenic and manganese treatment system for the Village of Stromsburg, Nebraska. Arsenic levels in the water ranged from 0.0178 mg/L to 0.0276 mg/L and the manganese levels fluctuated between 0.05 mg/L and 0.12 mg/L, well above the EPA maximum contaminant levels of 0.010 mg/L ...

  • Pumping Polyelectrolyte in waste water treatment

    The Challenge An industrial waste water treatment company required a cost effective solution to pumping polyelectrolyte. The plant engineers approached Verderflex distributor, Global Pumps Australia, for a solution to the following problems: Existing helical rotor pumps were expensive to run and maintain The replacement pump would have to be able to ...

  • Case study – bakery application

    Introduction Clean Water Technology, Inc. is the creator of the Gas Energy System (GEM), the most advanced primary treatment system on the market. The GEM System provides superior reduction of total suspended solids (TSS), biological and chemical oxygen demand (BOD/COD), fats, oils and grease (FOG) and turbidity. Challenge A renowned Bakery and Savory manufacturer in Southern ...


    By Clean Water Technology, Inc.

  • Case study - Algae control in cooling towers

    Company: Dubai festival city Description: LG Sonic industrial units for district cooling facility in Dubai Project objective: Reduce chemical dosage for water treatment and, at the same time, control factors that may cause problems, such as corrosion, scaling, and microbial activity Before treatment Scaling, ...


    By LG Sonic

  • Ulpha WTW - Actiflo for Crypto and Mn Removal

    United Utilities Maximum flow 22037 m3/day The Client United Utilities are the 2nd largest water company in England and Wales, responsible for an area in the north west of the UK including major cities such as Manchester and Liverpool. The Client's Needs Ulpha WTW is located near Millom in Cumbria in the Lake ...


  • RO Pretreatment Hydrocarbon Engineering - Optimisations of Osmosis

    Desalination by reverse osmosis (RO) is a fast growing technology, which is gaining more and more market share in the field of desalination applications. RO plants are able to produce extremely pure water with minimal impurities, even if they are charged with highly contaminated feed water. Based on the fact that the RO membranes themselves are able to separate the smallest ions out of the raw ...


    By Kurita

  • Toxicological and Environmental Safety Data - Case Study

    Introduction AGRAGEL is a cross-linked copolymer of acrylic acid and acrylamide partially neutralized as potassium/ ammonium salt. The polymer is in its dry form a granulate and forms a gel-like material upon addition of water or aqueous solutions. Due to the cross-linking it is insoluble in water. Uptake of water is facilitated mainly by the negative carboxylic groups of the polymer and ...

  • Hodder WTW - Actiflo for Cryptosporidium removal

    United Utilities 83-week Programme 112,000 m3/day Max Flow The Client United Utilities are the 2nd largest water company in England / Wales. They are responsible for an area in the north west of the UK, which includes major cities such as Manchester and Liverpool. The Client's Needs ...


  • Loch Turret water treatment works

    Actiflo® high rate sand ballasted clarification & multiflo lamella sludge thickening plant The Loch Turret upgrade was the largest drinking water project for Scottish Water in the latest investment period. The scheme was taken over in 2010 and is delivers approx 85 million litres of drinking water per day The Client Scottish Water is the UK's fourth largest ...


  • Performance of a conventional surface water plant using mixed-oxidants for microflocculation and final disinfection

    The City of Santa Fe, NM utilizes both surface water and well water to achieve a system-wide peak production of 22 million gallons per day (MGD). In March 1998, the city incorporated MIOX mixedoxidant disinfection technology for pre-treatment and final disinfection of the water treated in an 8 MGD surface water plant. Concurrently, a filter backwash recycling system was installed as well as ...


    By MIOX Corporation

  • Sutton Hall WTW - Actiflo for Crytpo and Mn removal

    United Utilities Maximum flow 127 000 m3/day The Client United Utilities are the 2nd largest water company in England and Wales, responsible for an area in the north west of the UK including major cities such as Manchester and Liverpool. The Client's Needs Sutton Hall is one of the largest treatment works ...


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