screw press sludge dewatering Articles

  • Struvite Removal & Vivianite Removal Case Study- Heat Exchanger and Screw Press

    A regional wastewater treatment plant in Sonoma County was experiencing problems with struvite on their screw presses and vivianite on their heat exchangers.The plant maintenance staff was forced to shut down the dewatering process every three (3) weeks to clean because of struvite deposits on the screen of the screw press. They also noticed that they were having a difficult time maintaining ...


    By Struvite Removal

  • Economic assessment of sludge handling and environmental impact of sludge treatment in a reed bed system

    The effect on the environment of the establishment and operation of a sludge treatment reed bed system (STRB) is quite limited compared to mechanical sludge dewatering, with its accompanying use of energy and chemicals. The assessment presented here of the investment, operation and maintenance costs of a typical STRB, and of the related environmental impact, is based on the experiences gained ...


    By IWA Publishing

  • You can dewater your cake and pump it too! Conveyance options for OCSD Plant 1

    OCSD is currently upgrading Reclamation Plant 1 to co-thicken primary and waste activated solids using centrifuges. Digested solids will also be dewatered using centrifuges and the two processes will be housed in the same building. A small building footprint, stringent redundancy requirements, and a 200 foot distance between the dewatering and storage facilities requires innovative engineering ...

  • Meat processing factory - Case Study

    Installation in a narrow space Problem This factory had used multi disc type dewatering equipment for long time; however, they had been facing problems such as aging and lack of throughput of the equipment. Due to a limited space for the dewatering equipment, they were looking for compact dewatering equipment with larger capacity. AMCON's ...


    By AMCON Inc.

  • Newport WWTP Newport, WA

    In 2003 the city of Newport began a study of upgrading the city’s waste water treatment plant. Plant flows were increasing and the city wanted to process sewage from septage haulers handling recreational development in the area. Esvelt Environmental Engineering Company was selected to do the study and facility design. One of the first decisions made was rather than expand aeration basins, ...


    By BDP Industries

  • Geotube Container Keeps Pulp & Paper Mill Running - SCA Tissue Paper, Cherokee, Alabama - Case Study

    TenCate develops and produces materials that function to increase performance, reduce costs, and deliver measurable results by working with our customers to provide advanced solutions. THE CHALLENGE SCA Tissue's Cherokee Alabama, USA, waste water treatment system has minimal sludge storage, about six hours, with all sludge going directly to a dewatering table, followed by a ...

  • Wyeth case study

    Paddle Dryer turns waste into income for food processing plant. A northeast food processor turns its activated biological sludge waste from its manufacturing process into income by recycling the waste as an ingredient for organic fertilizer. When the state banned landfilling of the biological waste, a study was conducted that showed the waste contained enough nutrients to be ...


    By Komline-Sanderson

  • STP Plant Supplier in Chennai – sewage treatment Plant in Chennai Tamilnadu

    RRR ENVIRO SYSTEMS STP plant supplier in Chennai Tamilnadu .We are the Manufacturing and supply of all the types of STP Plant like ASP & FBBR Methods in 10 KLD STP,50 KLD STP, 100 KLD STP, 150 KLD STP, 200 KLD STP, 300 KLD STP, 400 KLD STP, 500 KLD STP, 600 KLD STP with the best rates available in the Indian Market. Process Of STP plant The sewage shall be passed through the screen chamber to ...


    By RRR ENVIRO SYSTEMS

  • Bioremediation of Effluent the Pulp and Paper Industry

    The treatment of industrial effluent from the paper manufacturing facilities in British Columbia is a major concern because the effluent is discharged into prime salmon habitat in the marine environment (Cross, 1994). High levels of biological oxygen demand (BOD) in the effluent reduce the dissolved oxygen (DO) available to species in the marine environment. In 1988, the Federal Department of ...


  • Vivianite Heat Exchanger removal trial case study

    On the vivianite-laden heat exchangers, the maintenance supervisor created a recirculation circuit and diluted JS 9325 to a fifty percent (50%) solution. They recirculated the diluted solution for 48 hours while raising the temperature of the solution to 110F. Upon opening the first heat exchanger, they observed a purple solution following by a half-inch (½”) sheet of vivianite ...


    By Struvite Removal

  • How a Simple Bench-Scale Test Greatly Improved the Primary Treatment Performance of Fine Mesh Sieves

    In Norway fine mesh sieves are frequently used for primary treatment or as the only treatment before wastewater is discharged to coastal waters. The reasons for this are the intensive product development of fine mesh sieves taking place in Norway, and the significantly reduced investment costs and space requirements compared to other primary treatment processes. Historically the design of these ...

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