sludge dryer heating Articles

  • Biological Dryers Improve Performance/Economics of Biomass Projects

    Greater use of biomass for power generation is often constrained by the high moisture content of these fuels. As water contert increases, heating value drops, hampering the economics of the biomass utilization. Dryers can be used, but most traditional dryer desigrs reqjlrea large amount of energy to dry the biomass and are expensive to maintain and operate. As a result, much of the organic waste ...


    By Wright Tech Systems Inc.

  • Biosolids Dryer Emission Control - Case Study

    Colt has completed multiple Biosolids dryer projects, achieving unmatched performance and reliability. In order to handle this very demanding application, Colt engineers started with a clean sheet of paper, and designed the RTO with features that address the problems plaguing the dryer industry. Colt's Dallas based Air Quality Control Group received an order for a 3 chamber MAXIM™ RTO ...


    By Colt Technologies, Inc.

  • Remediation of refinery waste, oil sludge from lagoons and contaminated soils - case study

    The first VacuDry plant installed at a refinery is designed to treat waste which has accumulated over the last decades, as well as waste that will be generated inside the refinery in the future. The semi-mobile system has a capacity of 1.5 to 2 tons per hour. The plant is designed for maximum flexibility and can treat different types of refinery wastes ranging from dry soil to wet centrifuge ...

  • VacuDry Indirect heated vacuum thermal Desorption by econ industries - case study

    With the VacuDry8 technology the energy-efficient treatment of hazardous and industrial waste as well as contaminated soil, oil sludge and secondary raw material is realized. Controlled vacuum and heat are used to separate minerals from oil, solvents, mercury and other hazardous substances.    At the core of the econ VacuDry8 process is a specially designed dryer chamber which ...

  • 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

  • Centralised treatment of oil sludge and other industrial waste

    Centralised treatment of various sources of industrial waste has been established in many European countries over the last decade. Many facilities are still equipped with non state of the art technology and therefore cannot fulfil the broad field of applications with regard to industrial waste remediation. econ's international client decided to be one step ahead and erected a new econ industries ...

  • An analysis of the environmental management elements related to the improvements of the drying kinetics of waste activated sludge by Fenton peroxidation

    Advanced sludge treatment processes (AST) reduce the amount of sludge produced and improve the dewaterability, thus probably also affecting the heat transfer properties and the drying characteristics of the sludge. This paper studies the influence of the Fenton peroxidation on the thermal conductivity of the sludge. Results demonstrate that the Fenton's peroxidation improves the sludge cake ...


    By Inderscience Publishers

  • Turning biological waste treatment plant sludge into a fuel source

    North Carolina, as part of its landfill regulations, banned all waste treatment plant sludges from general landfills in March, 1989. Cranston Print Works Company was producing approximately 20 tons per day of 18% solid non-hazardous sludge in its extended aeration activated sludge waste treatment plant. Sludge disposal costs were $10,000 per week after the ban took effect. This paper traces the ...


    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 ...


    By Komline-Sanderson

  • Centralised treatment of oil sludge and other industrial waste - case study

    Centralised treatment of various sources of industrial waste has been established in many European countries over the last decade. Many facilities are still equipped with non state of the art technology and therefore cannot fulfil the broad field of applications with regard to industrial waste remediation, econ's international client decided to be one step ahead and erected a new econ industries ...

  • Waste Water Treatment Facility in Italy Greatly Reduces Volume with Pyrobustor®

    The ARA Pustertal wastewater treatment facility treats residential waste water from an association of 14 municipalities with a collection area of 444 square miles, corresponding to a population of approximately 400,000.  A thermal dryer reduced the volume and weight of approximately 16,000 tons/year of sewage sludge containing 20-25% dry matter. The sludge volume was reduced about ...


    By Eisenmann

  • How can you eliminate 28,000 tons of CO2 emissions? - Case Study

    Schwenk, Allmendingen (Germany) Did you know: The world’s largest rotary drum dryer for sludge handling helps one of Europe’s leading cement manufacturers to produce dried municipal sludge from kiln exhaust heat as a sustainable fuel source while significantly reducing the plant’s raw fuel consumption and CO2 emissions. ...

  • Development of a tool for improving the management of gaseous emissions in UASB-based sewage treatment plants

    This study aimed at developing a simple tool for improving the management of gaseous emissions in UASB-based sewage treatment plants (STPs), considering different scenarios for the management of sludge, biogas and gaseous emissions (especially sulfide and methane). For small STPs (<10,000 inhab.), simple alternatives for the use of biogas were considered (e.g. for excess sludge ...


    By IWA Publishing

  • Springfield - 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

  • Gatineau Sewage Treatment Plant, Gatineau, Quebec, Canada

    Project No. 1 Industrial Boiler Application A FLU-ACE waste heat recovery system installed to process all flue gases from three boilers. The system recovers up to 3.5 mmBTU/h of waste heat which is re-used for heating the digester sludge. The main fuel for the boilers is recycled methane based sewage gas generated from the plant’s anaerobic digesters. 'The installation ...

  • Processing technology for radioactive wastes

    For 20 years now, AVA has been delivering innovative mixers, dryers, and systems for environmental and processing technologies. The treatment of highly contaminated materials has always been one of our core competencies. For more than 10 years, AVA Technology has been applied for the processing of radioactive wastes. The application of AVA mixers and reactors may be divided into two main ...


    By AVA GmbH u. Co. KG

  • Oil and metal recovery from mill scale and grinding swarf for the metal industry - case study

    A combination of rising prices for resources and the improvement in technology make treatment of mill scale and grinding swarf an extremely environmentally friendly and economical solution. The first VacuDry® plant for the recovery of oil solvents and metals from sludges began operating in autumn 2012. Our client is a medium-sized company operating in the field of waste recycling and ...

  • Vaccu.Lan for Green

    You're building a 'green' science building, and some of your laboratories require vacuum support. How do you provide vacuum for those labs? You can't use an oil-sealed rotary vane vacuum pumps in the labs. The oil mist would contaminate the laboratory air, and the noise pollution makes the working environment unpleasant. The pump oil would quickly be contaminated by biological and chemical ...

  • Remediation of hydrocarbon contaminants from oil lagoons and refinery waste - case study

    In 2007 econ delivered an indirectly heated thermal desorption plant to a client in Kuwait. The plant is de-signed to treat various types of waste with hydrocarbon contaminant content. In particular refinery waste, oil lagoons and down hole drilling waste. The aim is to recover the waste hydrocarbons from the soil/sand and remediate the lagoons of their contaminants.  Due to the natural ...

  • Mercury recovery from industrial waste - Case study

    Mercury recovery from industrial waste and toxic residues of natural gas drilling econ industries' client in the east of Germany is one of the few specialised companies in Europe for the treatment of mercury contaminated waste. Typical input material for this type of treatment is sludge from the natural gas industry or other residues from chemical processes, i.e. contaminated filter cake ...

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