sludge dewatering Articles

  • A review on sludge dewatering indices

    Dewatering of sludge from sewage treatment plants is proving to be a significant challenge due to the large amounts of residual sludges generated annually. In recent years, research and development have focused on improving the dewatering process in order to reduce subsequent costs of sludge management and transport. To achieve this goal, it is necessary to establish reliable indices that ...


    By IWA Publishing

  • Sludge treatment reed bed facilities – organic load and operation problems

    The dewatering of the sludge with loss on ignition between 50 and 65% will have a maximal drainage on the order of 0.008–0.020 L/s/m2. Dewatering of the sludge with loss of ignition higher than 65% of dry solids will have a maximal drainage on the order of only 0.001–0.004 L/s/m2, approximately five to 10 times lower. It can be seen that there is a tendency for the achievable dewatering result to ...


    By IWA Publishing

  • Sewage treatment plant case study

    Contributing to snowy regions in which the transportation of sludge is difficult In municipal wastewater treatment plant in snowy regions, snow-bound in winter, taking dewatered cake out regularly is sometimes difficult. Two problems were also presented in this municipal wastewater treatment plant, i.e., the difficulty of taking sludge out using carriers in winter, which had been ...


    By AMCON Inc.

  • Glass Recycling Factory - Case Study

    Adjusting the specification according to the dewatering target. This factory recycles glass and processes them into small pieces which can be used for making glass bottles. Nevertheless, the pieces of glass need to be washed before having been shipped to another factory where the final product will be made and this cleaning water needs to be treated somehow. They had been using a belt ...


    By AMCON Inc.

  • Dewatering sludge originating in water treatment works in reed bed systems

    The dewatering process of the liquid water works sludge was examined in a trial with a series of six trial beds, each 20 m2. These were monitored from April 2008 to June 2010. It is possible to get the vegetation to grow in ferric sludge (∼300,000 mg Fe/kg dry solid, pH 7,7). It has not been necessary to use fertilizer. The influence of the loading programs (15–50 kg dry solid/m2/year) was tested ...


    By IWA Publishing

  • Suitable for piggery wastewater treatment! (Japan)

    Ishikawa Stockbreeding, Inc. had faced problems with labor and maintenance works accompanied with the handling of excess sludge, generated from their piggery wastewater treatment plant. However, the installation of Volute Dewatering Press solved all these problems and this resulted in a big fall in labor and maintenance works for excess sludge treatment. Problem Ishikawa ...


    By AMCON Inc.

  • Ishikawa Stockbreeding, Inc. case study

    Suitable for piggery wastewater treatment! Ishikawa Stockbreeding, Inc. had faced problems with labor and maintenance works accompanied with the handling of excess sludge, generated from their piggery wastewater treatment plant. Before installing Volute Dewatering Press, the excess sludge had been treated by all of the workers in the firm through a series of process; pumping the ...


    By AMCON Inc.

  • Full scale optimisation of sludge dewatering and phosphate removal at Harnaschpolder wwtp (The Hague, NL)

    At Harnaschpolder wwtp phosphate removal from wastewater and sludge dewatering is optimised by dosing magnesium hydroxide to digested sludge. To optimise sludge dewatering and phosphate removal, a full-scale test has been executed since August 2015 using temporary equipment. In this test magnesium hydroxide is added to the digested sludge buffer. Significant positive results are achieved. An ...


    By IWA Publishing

  • The arrangement that makes The New revolutionary Sludge Dewatering Separator

    WHAT MAKES The New revolutionary Sludge Dewatering Separator so outstanding ? Hello  Last week, has been the busiest in our history - The interest in our products has been overwhelming, especially from you here at “Environmental Expert”. We have received many inquiries regarding - What is so ...


    By Faroe Maritime Technic (FMT)

  • Municipal sewage application (Nagano Prefecture) case study

    Squeeze sludge fresh out of the reactor. Don't wait until it stinks! In the wastewater treatment plant of a town in Nagano, the long-used belt press was in a time to be overhauled. The person in charge had racked his brain over the problem of huge cost required to overhaul this equipment at regular intervals. He had been seeking a solution to this problem. In addition, he had to cope ...


    By AMCON Inc.

  • Correlation of wood-based components and dewatering properties of waste activated sludge from pulp and paper industry

    Large amounts of wet sludge are produced annually in municipal and industrial wastewater treatment. Already in pulp and paper industry, more than ten million tons of primary sludge, waste activated sludge, and de-inking sludge is generated. Waste activated sludge contains large quantities of bound water, which is difficult to dewater. Low water content would be a matter of high calorific value in ...


    By IWA Publishing

  • 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

  • Yamauchi Company case study

    Dramatic Change in Efficiency Brought by The Installation of The Volute Dewatering Press Since sludge dewatering equipment had not been installed in their wastewater treatment plant, sludge had been treated with a sand filter and took them 1 to 2 weeks to dry. Furthermore, the dried sludge had been picked up and placed in a tub by 30 employees, and it took them an hour to complete ...


    By AMCON Inc.

  • Municipal Wastewater Treatment Plant - Moss Creek Plantation, Bluffton, SC (Wastewater Treatment) - Case Study

    THE CHALLENGE Moss Creek Plantation is a picture-perfect golf course community of 980 residences in the low country of South Carolina. The Moss Creek Owners Association (MCA) owns and operates Water Oak Utility, which treats about 450,000 gallons per day. The utility also contracts with Beaufort-Jasper County to treat some of their waste stream. James Buckner, Utility Operations Manager, ...

  • Major meat-process plant in Canada case study

    In the meat-process plant in Canada managed by a world's leading meat-process plant, huge amount of sludge disposal cost had been a longstanding problem. In production process, approximately 96m3 sludge had been generated a day, and the sludge had been disposed by a waste disposal firm. This sludge disposal cost had reached as much as 93.6 million yen a year. The existing belt press had produced ...


    By AMCON Inc.

  • Dewatering with Geotextile Bags - South Gippsland, Australia (Water Treatment) - Case Study

    A simple, cost effective new method of dewatering sludge is now available in Australia, writes Bill Kelly from CRS Industrial Water Treatment. The use of geotextilcs for containment and dewatering came about as a result of a major flood event in Holland in the 1950s. It prompted Dutch marine engineers to seek new methods and materials to build structures for coastal defences. The ...

  • Squeeze sludge fresh out of the reactor. Don`t wait until it stinks! (Japan)

    Municipal sewage application [Oxidation Ditch] 【Problem】 In the wastewater treatment plant of a town in Nagano, the long-used belt press was in a time to be overhauled. The person in charge had racked his brain over the problem of huge cost required to overhaul this equipment at regular intervals. He had been seeking a solution to this problem. In addition, he ...


    By AMCON Inc.

  • Geotube Dewatering Technology For Lagoon Cleanout At Poultry Processing Plant - Case Study

    THE CHALLENGE: In 2006, one of Mexico's largest poultry processing plants was experiencing high levels of BOD discharge into the local river because their two sludge lagoons were full sludge with a high percentage of solids. The plant was expanding operations and had no place to store the additional sludge that would be generated or any onsite means of removal and dewatering. The problem ...

  • Juice producer in France - Case Study

    Our biggest models can dewater huge amount of sludge during summer months. After a successful pilot test has been carried out, AMCON successfully installed one of our biggest models, ES-351 in the Juice factory in France. Although they had been using a belt press until then, they were not satisfied with its performance and they were always looking for an alternative solution for their sludge ...


    By AMCON Inc.

  • Full-scale performance of selected starch-based biodegradable polymers in sludge dewatering and recommendation for applications

    Agricultural reuse of dewatered sludge is a valid route for sludge valorization for small and mid-size wastewater treatment plants (WWTPs) due to the direct utilization of nutrients. A more stringent of German fertilizer ordinance requires the degradation of 20% of the synthetic additives like polymeric substance within two years, which came into force on 1 January 2017. This study assessed ...


    By IWA Publishing

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