screw press Articles

  • Struvite screw presses removal trial case study

    Based on the lab supervisor’s recommendation, the plant ordered two 55 gallon drums of JS 9325 for a plant trial on the screw press. They set up a spray system to meter JS 9325 on the outer surface of the screw press. During the first five (5) days of the struvite removal trial, plant operations noticed that the openings on the screens were getting cleaner. They reduced the cleaning cycle ...


    By Struvite Removal

  • 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

  • Pulp & Paper Industry: PTA Repair and Rebuild of Screw Press

    Eutectic Canada recently completed the manual PTA finishing of a stainless steel feed screw for a large OEM supplier of these parts. The screw is used to compress the pulp and separate liquids from solids by expelling the liquids through a screen that surrounds the compression screw. Due to the high pressure, the friction wore the carrying face and the body of the screw. The customer ...


    By Castolin Eutectic

  • Struvite and Vivianite Screw Presses and Heat Exchanger Removal case study

    A regional wastewater treatment plant in Sonoma County was experiencing problems with struvite on their screw presses and vivianite on their heat exchangers. The design plant flow rate is 7.9 mg/day. They were using 7 mg/L to 10 mg/L (dry basis) of ferric chloride to control hydrogen sulfide and improve solids removal in the primary clarifier. The plant maintenance staff was forced to shut down ...


    By Struvite Removal

  • Domestic Development of Dry Powder Ball Pressing Machine

    Dry powder ball pressing machine is a kind of mix powder material powder or granular material is compressed into the ball equipment, widely used in metallurgy, coking, mining, coal, electric power and other industries, can be of aluminum and alumina powder, ferric oxide powder, coke crumbs, limestone powder, crystal and other granular materials are pressed into the ball. After pressed pellets can ...

  • Co-digestion of press liquids of source-sorted municipal organic waste in anaerobic sludge treatment of municipal wastewater treatment plants

    This paper describes a semi-continuous laboratory-scale investigation of a potential co-substrate for mesophilic anaerobic sludge digestion in a municipal wastewater treatment plant. A feed liquid produced from source-sorted municipal organic waste by pretreatment with a screw press was subjected to the investigation. Quantities produced in press trials as well as the composition of the feed ...


    By IWA Publishing

  • Roll-press briquetting helps Iowa lime producer retain previously wasted fines as valuable product case study

    Adding a new 550 tpd rotary kiln more than doubled lime production capacity at Linwood Mining and Minerals Corporation's Buffalo Plant, located near Davenport, IA...but it also raised the problem of what to do with a greatly increased output of fines. Realizing that landfilling its plant property with waste fines at rates of up to 100 tpd would not be a good long-term solution, the company not ...


    By K.R. Komarek Inc

  • Challenge: reduce costs and eliminate odour. Can it be done?

    Arlat ‘SDP’ Spiral De-watering Press is up for the job.Trucking costs can be decreased and odour eliminated by using an ARLAT ‘SDP’ Spiral De-watering Press in your treatment plant. Arlat’s Spiral De-watering Press operates by obtaining screenings from a screen’s or screw conveyor’s discharge chute that is located directly above the inlet chute on the press. The Arlat press then takes the ...

  • Wastewater Treatment Plant Town of Guilderland, NY

    The Town of Guilderland has been dependably served by a 1.5 meter BDP belt press since its installation in 1983. In 2004, the Town decided that an upgrade was necessary, and chose BDP due to their service and equipment reliability. The Town of Guilderland installed a 2.0 meter 3DPTM, and immediately experienced dryer cakes with higher throughput resulting in lower disposal costs. The 3DPTM was ...


    By BDP Industries

  • Wastewater Treatment Plant Village of Rouses Point, NY

    The Village of Rouses Point has been a BDP customer since 1990 when they purchased a 1.0m BDP Model ‘E’. During the latest expansion of their facility, the plant evaluated various options for increasing the hydraulic throughput of their dewatering system. BDP was the press of choice due to the 3DPTM belt filter press superior performance, simplified room layout and first class ...


    By BDP Industries

  • 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

  • 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

  • VSEP treats thermomechanical pumping effluent with no pre-treatment required at a major MDF plant

    New Logic International installed its Vibratory Shear Enhanced Processing (VSEP) system in August, 1998 at a major international Medium Density Fiber (MDF) Board manufacturing facility. The VSEP is used for treatment of thermomechanical pulping effluent at this facility with no pretreatment required. The VSEP system uses a nanofiltration membrane module and is able to treat pressate from the ...


    By New Logic Research, Inc.

  • Large volumes compressed into small volumes saves costs case study

    Vöhringer GmbH with its 120 staff and ultramodern machine park in Trochtelfingen each day processes up to 40,000 m2 of sheeting. This is mainly used for manufacturing specialist furniture parts up to complete furniture sets – especially for caravans and mobile homes but also for exhibition stand construction, for doors and the furniture industry. Chippings and dust accumulating during ...


    By WEIMA

  • Waste Water Treatment Plant Thunder Valley Casino, CA

    The Waste Water Treatment Plant at the Thunder Valley Casino was in need of a cost effective way to clean out their settling ponds and then process the solids from their new Membrane Bio Reactor (MBR). However, they did not have the space yet for a permanent installation. The ponds needed to be emptied before a building could be constructed for the dewatering equipment. BDP was able to meet the ...


    By BDP Industries

  • 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.

  • 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 ...

  • Separation tank / Floating tank for separation of different kinds of plastic

    The NEUE HERBOLD – Separation Tank Type TB is used for separation of  plastics with various densities, primarily for film flakes, granulate from  PET bottles and other rigid types of plastics. Depending on the application, floating particles like film falkes or sinking particles like PET bottle flakes are separated from other high density plastics. The standard separation tanks ...

  • Briquettes Are the New Renewable Energy

    You can walk towards a sustainable and clean environment by promoting usage of Briquettes which can be made by various kinds of Briquetting machines. There are different types of machines, and a large number of manufacturers supply them with versatile range and performance. It is a very effective initiative to keep the glory of the environment by making it pollution free and encourage the use of ...


    By Jay Khodiyar Machine Tools

  • 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

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