Sludge Dewatering Articles

  • BAIONI supply complete dewatering centrifuge system for APS Ltd

    Situated near Slough, in Berkshire, Aggregate Processing Solutions (APS) is operating a washing plant where Baioni has recently supplied a centrifuge system to complement the whole existing plant. Baioni has boosted the capacity of its decanter centrifuges range to pave the way for further improvements in waste ...


    By Baioni Crushing Plants Spa

  • The Importance of Dewatering

    With spring comes two things: the onset of construction season for most of our country and rain- lots and lots of rain. The unpredictability of storms and the amount of rainfall is all a guessing game.  Jobsites flood, work stalls and projects get delayed. Rain makes it hard to keep dry and on-schedule. What’s the solution? Dewatering is a technique used to control ...


    By Pac-Van, Inc.

  • Packaged Polymer Injection Dewatering System - Case Studies

    Case Study Number 1 Industry: Oil & Gas, Mining and Civil Waste Management Application: Treatment of Waste Drilling Fluids for Recycling Location: Brisbane, Australia Configuration: 20’ Explosion Proof HMI Dewatering System with VFD Driven EE-1448HD Centrifuge. Objective: Wastewater Treatment Sludge Dewatering in Order to Facilitate Landfill ...


    By Elgin Separation Solutions

  • Promotion of partial nitritation-anammox process by improving granule proportion

    For enhancing the partial nitritation-anammox (PN/A) process, the effects of granule fraction on system performance were investigated in this study. Two sequencing batch reactors (SBRs) were inoculated with PN/A biomass with a floc mass fraction of 53%. In SBR1, when the nitrogen removal rate (NRR) was stable, flocculent sludge was gradually discharged from the reactor using a screen, and the ...


    By IWA Publishing

  • Phyto-dewatering of sewage sludge using Panicum repens L.

    Experiments in the field environment have been conducted to study the growth of Panicum repens L., an aquatic plant, in the sewage sludge matrix. The experiments were also carried out to investigate the ability of this plant to dewater sewage sludge to increase the capacity of conventional drying beds. In addition, the ability of Panicum repens L. to reduce the sludge ...


    By IWA Publishing

  • Ferrrate(VI) and freeze-thaw treatment for oxidation of hormones and inactivation of fecal coliforms in sludge

    This study examined the individual and combined effects of potassium ferrate(VI) additions and freeze-thaw conditioning for the treatment and dewatering of wastewater sludge in cold climates, with particular focus on the inactivation of fecal coliforms and oxidation of estrogens, androgens, and progestogens. The first phase of the study evaluated the effects of potassium ferrate(VI) ...


    By IWA Publishing

  • The intermediate thermal hydrolysis process: results from pilot testing and techno-economic assessment

    Thermal hydrolysis has proven to be an efficient pre-treatment process for sludge before anaerobic digestion (AD), by thermally enhancing organic matter hydrolysis. Recent research has shown that a new configuration with the existing technology can further enhance the efficiency of the system. The intermediate thermal hydrolysis process (ITHP) has been explored and tested in the Sludge and ...


    By IWA Publishing

  • DigestivorePAD™ Technology

    Ovivo has recently signed an exclusive licensing arrangement with DC Water to promote and distribute their patented post aerobic digestion technology.  Branded under the name DigestivorePAD™, the system provides owners with increased solids destruction, reduced nutrients in sidestreams and improved cake solids from their dewatering equipment.  The technology will build on ...

  • Operational strategy, economic and environmental performance of sludge treatment reed bed systems – based on 28 years of experience

    Sludge treatment reed bed (STRB) systems have been used for dewatering and mineralisation of sludge in Europe since 1988. STRB systems provide substantial environmental, economic, and operational benefits compared to mechanical sludge dewatering solutions such as belt presses and centrifuges. They require less energy, no chemicals, reduce the sludge volume and produce bio solids with dry solid ...


    By IWA Publishing

  • Effect of pH on the flocculation behaviors of kaolin using a pH-sensitive copolymer

    pH-sensitive copolymers have been widely introduced to achieve rapid dewatering and consolidation of solids in mining and oil sands processing wastes. But no more attention has been given to the flocculation efficiency of solid suspensions as a function of pH using pH-sensitive copolymer. In this study, a pH-sensitive copolymer was synthesized and employed to investigate the flocculation ...


    By IWA Publishing

  • Energy recovery from thermal treatment of dewatered sludge in wastewater treatment plants

    Sewage sludge is a by-product generated from municipal wastewater treatment (WWT) processes. This study examines the conversion of sludge via energy recovery from gasification/combustion for thermal treatment of dewatered sludge. The present analysis is based on a chemical equilibrium model of thermal conversion of previously dewatered sludge with moisture content of 60–80%. Prior to ...


    By IWA Publishing

  • 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.

  • Sorption of paracetamol onto biomaterials

    Pharmaceutical residues released into the environment are posing more and more public health problems. It is worthwhile to study the retention of pharmaceuticals residues by adsorption on solid supports. Batch sorption experiments are intended to identify the adsorption isotherms of the pharmaceutically active ingredient on the biomaterials. The results obtained in this study have shown that ...


    By IWA Publishing

  • 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

  • Energy potential and alternative usages of biogas and sludge from UASB reactors: case study of the Laboreaux wastewater treatment plant

    This work assessed the energy potential and alternative usages of biogas and sludge generated in upflow anaerobic sludge blanket reactors at the Laboreaux sewage treatment plant (STP), Brazil. Two scenarios were considered: (i) priority use of biogas for the thermal drying of dehydrated sludge and the use of the excess biogas for electricity generation in an ICE (internal combustion engine); ...


    By IWA Publishing

  • Rotomite 6000 dredge system - centennial coal-case study

    Centennial Coal's Mannering Colliery mine averages over 1M tons of coal per year when operating at full capacity. The mine's run-off ponds' sludge issues prompted Centennial to contact Dredging Solutions, SRS Crisafulli's Dealer in Australasia, and an experienced dredging contractor.  Dredging solutions deployed the Crisafulli Rotomite 6000 auger suction dredge system because of the ...


    By SRS Crisafulli, Inc.

  • Harlem, MT USA WWTP Uses FLUMP - 2013-case study

    Excessive lagoon sludge accumulation contributes to the poor performance of any treatment system.  Removing sludge from lagoon cells improves treatment and addresses violations in the Department of Environmental Quality enforcement action. The City of Harlem, Montana has a three cell partially mixed aerated lagoon system constructed in 1985.  The lagoon system discharges to the Milk ...


    By SRS Crisafulli, Inc.

  • Research on the stability of heavy metals (Cu, Zn) in excess sludge with the pretreatment of thermal hydrolysis

    Thermal hydrolysis (TH) has been used to improve anaerobic digestion performance as well as the stability of heavy metals in sludge. Because the toxicity of heavy metals is closely related to both the concentration and the chemical speciation, more exhaustive studies on speciation distribution are urgently needed. This research aimed to investigate the effects of TH treatment (especially the ...


    By IWA Publishing

  • Improved dewatering of CEPT sludge by biogenic flocculant from Acidithiobacillus ferrooxidans

    Bioleaching using an iron-oxidizing bacterium, Acidithiobacillus ferrooxidans, and its biogenic flocculants was evaluated to improve the dewaterability of chemically enhanced primary treatment (CEPT) sewage sludge. CEPT sludge in flasks was inoculated with A. ferrooxidans culture, medium-free cells and the cell-free culture filtrate with and without the energy substance ...


    By IWA Publishing

  • Effects of thermal hydrolysis temperature on physical characteristics of municipal sludge

    Effects of thermal hydrolysis temperature on the physical properties of municipal sludge was further studied by a series of experiments. There was a decrease in bound water content with an increase in hydrolysis temperature, while there was an increase in pH at temperatures below 120 °C, and a decrease at temperatures exceeding 120 °C. An analysis of settleability, centrifugation and vacuum ...


    By IWA Publishing

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