belt sludge drying Articles

  • Simulation of sludge dewatering on belt filters

    A mathematical model for belt filters was developed to determine optimum load rate and belt speed during drainage of flocculated biological sludge. Numerical simulations were performed for belt filters with and without plows, and the model fit experimental data well. Experiments showed that highly compressible cakes were formed during drainage, which was important. Due to cake compression, the ...


    By IWA Publishing

  • 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

  • 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 ...

  • Heavy metal & hydrocarbon contaminated sludge

    Solidification of Heavy Metal & Hydrocarbon Contaminated Sewage Sludge Client: North Lanarkshire Council Project Managers: Jacobs Challenge: The former sewage treatment works were decommissioned in the 1970’s. It is thought that during the closure process, demolition material originating from the ...


    By Soilutions Ltd

  • 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

  • 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

  • Souderton looks at viability of investment in sludge dryer

    Despite the day's snowy weather, the Souderton Borough Council met for a brief session March 2 and discussed the newest option for the borough's sludge removal. The borough has been looking for a device to dewater the sludge produced by the in-town treatment facility for nearly two years. Removing the water would allow the borough to apply the sludge to land, which would save on hauling costs. ...


    By Therma-Flite Inc.

  • Incineration Industry: Scrubber on Sludge Incinerator Reduces Atmospheric Emissions Case Study

    Aberdeen Sewage Treatment Plant in Aberdeen, Washington started up their new Electric Infrared Incinerator in May, 1981. The sewage sludge incinerator, product of Shirco, Inc., needed a pollution control device in order to meet state, local and federal requirements for atmospheric emissions, according to the emissions test on the unit performed January, 1982. Chosen was a Model 24×24- ...


    By CR Clean Air Group, LLC

  • Bio-augmentation process reduces odors and organic sludge build-Up

    Efficiently operating a wastewater treatment plant within budget and permit limits gets more challenging by the day! Plant administrators are constantly facing the battle of costly sludge disposal, noxious odor control and rising electricity expense. The City of Meridian, Mississippi also fell into this category until it made the decision in 2005 to utilize a product marketed by Reliant Water ...


    By Reliant Water Technologies

  • 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

  • Paint

    Problem: A paint manufacturer, that produces both oil and water based paints, needed help to solve their liquid sludge problem. At that time the wastewater was batch treated and consisted of a chemical addition process followed by settling. This was to be changed in the near future to a continuous type treatment system. The settled sludge consistency varied form 5% to 10%. The ...


    By HydroCal Inc.

  • COMPARISON OF PROCESS FLOWS: FLUID BED COMBUSTOR AND GLASSPACK® (metric version)

    PURPOSEThe purpose of this document is to present the assumptions and calculations used to prepare Minergy Drawing 100-0204-PP00 (attached). The volumetric flows for both a fluid bed combustor (FBC) and Minergy’s patented GlassPack® closed loop oxygen enhanced combustion process are compared on this drawing. In this drawing, process flows are illustrated by scaling the width of the flow arrows ...


    By Minergy Corporation Limited

  • COMPARISON OF PROCESS FLOWS: FLUID BED COMBUSTOR AND GLASSPACK®

    PURPOSEThe purpose of this document is to present the assumptions and calculations used to prepare Minergy Drawing 100-0204-PP00 (attached). The volumetric flows for both a fluid bed combustor (FBC) and Minergy’s patented GlassPack® closed loop oxygen enhanced combustion process are compared on this drawing. In this drawing, process flows are illustrated by scaling the width of the flow arrows ...


    By Minergy Corporation Limited

  • Waste Water Treatment Plant City of Oakley, UT

    The City of Oakley was very happy with their new MBR facility except for the filter bag sludge dewatering system that was very labor intensive and usually didn’t produce an adequately dewatered sludge. Scott Rogers of Aqua Engineering and Bob Johnson, the Operations Mgr., chose to replace the bag system with a 0.9 meter model DDP belt press system from BDP Industries. The DDP belt press ...


    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

  • Springfield MA case study

    At Their Disposal Komline-Sanderson minimizes solid waste disposal costs in Springfield, Mass The City of Springfield, Mass., currently uses a contract composting facility, which is located at the 65 MGD Bondi Island Wastewater Treatment Plant to dispose of their solid waste. The composting facility requires a feed of 40–45% solid materials to ...


    By Komline-Sanderson

  • Paragould AR case study

    Maximum Capacity Expected Increased population in Paragould, Ark., forces city to expand wastewater treatment plant to better manage sludge disposal Does this sound familiar? Your lagoon is filling with both primary and secondary sludge, and will be at capacity within the next two years. Paragould, Ark., a growing city of 22,500 located in northeast Arkansas, had just that problem. ...


    By Komline-Sanderson

  • Ashford STC Expansion, United Kingdom

    Southern Water 10.5 tons dry solid per year (TDS/yr) The Client Southern Water provides water supply and sewerage services in the counties of Kent, East and West Sussex, Hampshire and the Isle of Wight, and small parts of Wiltshire, Berkshire and Surrey. The Client's Needs The purpose of the works was to ...


  • Class a biosolids production at eastern municipal water district using heat pasteurization

    Since 1998, the Eastern Municipal Water District (District) has developed and successfully operated a heat pasteurization facility to treat extended aeration waste activated sludge (WAS) from the Perris Valley Regional Water Reclamation Facility (PVRWRF). The treatment train uses hot water to sludge spiral heat exchangers and a patented continuous-feed, complete mix pasteurization vessel (heated ...


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