sludge dewatering press Articles

  • Oil Field Sludge Dewatering

    An oil field contract dewatering company was unable to dewater the oily/water/solids from several oil field storage tanks using conventional coagulants/flocculants. The swings in solids loading and oil content made it very difficult to control the correct dosage rate as conventional chemistry has a very tight tolerance to maintain a dewaterable floc. The result was an ongoing blinding problem for ...


    By Integrated Engineers Inc.

  • Volute Dewatering Press reduces the sludge disposal cost by 75%! (CANADA)

    PROBLEM Widely known  company Cargill Meat Solutions was looking for a solution for their sludge processing issues. Every day the thickened sludge had to be removed and the annual carrier cost was over $1,200,000. Furthermore, they needed to pay additional $20,000 for labor and handling ...


    By AMCON Inc.

  • Village of Maybrook, NY Sludge Dewatering System

    Project Summary: The Village of Maybrook WWTP process consists of primary clarification, trickling filters, and secondary clarification. Primary sludge and trickling filter humus is anaerobically digested. The belt filter press dewaters the sludge eliminating the need for sludge drying beds. The belt filter press discharge cake solids are consistently in the 25 to 30 percent range, which is ...


    By BDP Industries

  • Ultra-small VOLUTE Dewatering Press ES-051 (Ukraine (1))

    In the year of 2004 in Ukraine, there was no compact sludge dewatering equipment suitable for small-scale wastewater treatment facilities like septic tanks. As for septic tanks, it had been common that sludge was disposed by tanker truck and sent to sludge dewatering facilities for post treatment. For that reason, the annual sludge disposal cost was extremely high, which had been a major issue ...


    By AMCON Inc.

  • VOLUTE Dewatering Press reduces maintenance time sharply! (Japan)

    Komagata Foods Co., Ltd. <Problem> Komagata Foods Co., Ltd., manufacturing feed for fish cultivation, used to use a belt filter press, but they had always faced clogging problems because of the oily sludge. They also suffered from spillage over from the side of filter cloth, making operators to keep their eyes on the machine all day. <AMCON's offer for ...


    By AMCON Inc.

  • Overhaul frequency of a dewatering press decreased at a milk and dairy products plant

    Problem This plant used a belt press to dewater their waste activated sludge from their membrane bioreactor. However the equipment frequently caused clogs and the operator needed to replace the filter cloth once every 3 months. The labor and cost for the replacement of the filter cloth caused problems for the operator. Client's voice We used ...


    By AMCON Inc.

  • 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 sludege has been treated before digestion with Cambi thermal hydrolysis process (THP) hase shown good results for belt press dewatering - generally greater than 30% DS. The authors propose that the main mechanism in ...


    By Cambi AS

  • 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

  • A New, Real Technology for Solids Dewatering

    Over the past decade, there have been few significant improvements to the performance in sludge dewatering technologies. Most improvements, other than process optimizations from the polymer industry, have been minor adaptations to the various dewatering technologies such as adding additional pressure rollers or modifying the diameters of pressure rollers on a belt filter press. The adoption of ...

  • The Volute Dewatering Press Purchased Repeatedly, Plays a Very Important Role at a Tofu Factory.(Japan)

    Otokomae Tofu Inc. Otokomae Tofu Inc. develops, manufactures and sells Tofu (Soybean Curd), with impressive product names. They installed the second Volute Dewatering Press in their Kiyosato factory, following the first one installed in their Kyoto factory. We interviewed the responsible person to take care of the whole wastewater treatment plant to ask the reason why they have become our ...


    By AMCON Inc.

  • Pulp & Paper Sludge Dewatering - Stora Enso, Niagara Mill, Wisconsin - Case Study

    The Stora Enso, Niagara Mill, was established in 1889. Niagara Mill uses 7,500,000 gallons per day of water from the river to make pulp & paper. The removal of the solids is accomplished by treating it with alum, then a flocculent, allowing the solids to settle out in a 2,000,000 gallon setting tank system. This tank requires yearly cleaning to ensure quality water for the paper making ...

  • Combined experiences of thermal hydrolysis and anaerobic digestion – latest thinking on thermal hydrolysis of secondary sludge only for optimum dewatering and digestion.

    ABSTRACT The basic principles of batch thermal hydrolysis process (THP) are well known as a pre-treatment to anaerobic digestion (AD) . Early work done in the 70s in the USA and the 80s in Japan demonstrated the optimum time and temperature for thermal hydrolysis being 340 F for 30minutes. These principles have been put into full practice in 20 plants around the world at plants ranging from 5 ...


    By Cambi AS

  • Colloidal sludge - case study

    YEAR: 2003 COUNTRY: ITALY N° and MACHINERY MODEL EMPLOYED: 1  JETFILTER RH 1000.70 Diemme® Filtration The customer is a company that produces ceramic pastes, requiring the dewatering of ceramic barbotine, a colloidal material which is difficult to dewater. It already had a filter press that did not have the ...

  • Environmental sludge treatment

    During the process of wastewater treatment, sludge generation is an important and at times crucial issue to be addressed as inadequate sludge handling system can pose serious environmental implications. Liquid sludge can be easily thickened and reduced to a solid cake via sludge thickening / dewatering. This reduces the volume of liquid sludge significantly, usually resulting in a quite ...

  • Direct Dewatering from Oxidation Ditch (Africa)

    Development of proper sanitation or wastewater treatment has been a critical issue in Africa for prevention of almost any types of infectious diseases. Generally, anywhere in the world, the keys for the successful wastewater treatment system is choosing the appropriate solids removal and dewatering technology and achieving the acceptable quality of water for discharge. However, the high ...


    By AMCON Inc.

  • Wastewater-Solids Dewatering Odor Control - Case Study

    Background The Milan Wastewater Treatment Plant, located just south of Moline, Illinois, is a 1.7 MGD (6,434 m3/day) activated sludge facility with an average wastewater flow of 700,000 gpd to 800,000 gpd. This facility dewaters primary sludge using a belt filter press (Figure 1). The press operates an average of three times per month, 8 hours per day at a pump rate of 100 gpm. The ...


    By Carus Corporation

  • Dredged sludge filtration - case study

    YEAR: 2009 COUNTRY: BELGIUM N° and MACHINERY MODEL EMPLOYED: 12  GHT 2000.P19 MEM Diemme® Filtration In Antwerp Harbour, lots of sediment accumulates, equal to 600,000 tons of dry material, which caused a gradual decrease in depth with the consequent reduction in navigability. Since a few years ago, the ...

  • Cost Comparison for Sludge Disposal (Japan)

    Problem A company, manufacturing arrowroot flour and Japanese sweets in Kagoshima Prefecture, has a plenty of sludge which costs highly to be disposed. Upon the intention to reduce the cost for sludge disposal by gaining higher cake solids content, the operator was looking for a suitable dewatering equipment to replace their multi disc equipment. Client’s ...


    By AMCON Inc.

  • Environmental assessment of different dewatering and drying methods on the basis of life cycle assessment

    Sewage sludge is an inevitable product of wastewater treatment in municipal wastewater plants and its amount has increased dramatically due to the growing number of sewage systems users. This sludge needs to be adequately treated in order to decrease its hazardous properties and any negative influence on the environment. In this paper, gate to gate analysis, on the basis of life cycle assessment ...


    By IWA Publishing

  • Geotube Dewatering Technology Helps Arizona Chemical Dewatering Technology Helps Arizona Chemical Solve “Tight Space” Challenge - Case Study

    Arizona Chemical Company, a Division of International Paper, converts terpenes, generated by cooking wood pulp for making paper, into resins used to make adhesrves. The plant's process waste of inorganic compounds (magnesium hydroxide, crude tall oil and fatty acids) is sent to an equalization basin (EQ) for storage and settling. The supematantis discharged into Panama City's wastewater treatment ...

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