sludge dehydrator Articles

  • Sludge dewatering in Circular Economy

    The change of mentality to a circular economy has revealed the importance of reusing and energy recovery from sludge as secondary raw material Circular economy and re-use of waste materials ...


    By Toro Equipment S.L.

  • The effects of anaerobic fermentation on dehydrated sludge

    Dehydrated sludge with two concentrations of total suspended solids (high: 50 g/L TSS; low: 20 g/L TSS) were studied for 20 d to investigate the effects of anaerobic fermentation on sludge properties. The results showed that the soluble chemical oxygen demand (SCOD) of high-concentration sludge was 16.53 g/L, much higher than that from the low one. The SCOD/total nitrogen ratio of ...


    By IWA Publishing

  • Investigation of a direct melting dehydrated sewage sludge pilot plant

    A direct melting dehydrated sewage sludge furnace was tested to obtain the basic operating parameters. Observation of particles (fly ash and deposited particulates) inside the pilot plant was performed to determine the particle properties. The results showed that dehydrated sewage sludge could be directly melted at a temperature of 1400?C with stable combustion. With regard to the fly ash, the ...


    By Inderscience Publishers

  • Study on sewage sludge gasification

    Aimed at creating new technology to reduct greenhouse gas emission, the Tokyo Bureau of Sewerage has developed a system generating electricity with a gas engine using biogas generated by pyrolytic gasification of sewage sludge in a fluidized-bed gasifier. A 15t/d demonstration facility was built based on a dehydrated sludge and demonstration tests were run for 3400 hours from 2005. As a result of ...

  • Sustainable sludge handling for the 21st Century

    Purification of municipal and industrial waste waters leads to the generation of a residue-called “excess sludge”. This material when mechanically dewatered is typically 75-90% water. The balance of the dewatered sludge consists of organic compounds (solid waste, biomass) and inert materials (sand, salts, and metals). These sludges have been to date dehydrated to reduce the aqueous fraction using ...


    By SCFI Group Limited

  • Carbonization of johkasou sludge using batch-type equipment

    The carbonization of dehydrated johkasou sludge was examined using batch-type equipment. Based on the temperature changes in the carbonization room and the gas combustion room, the carbonization process was divided into three phases: phase I, drying the sludge, phase II, thermal decomposition of the dried sludge, phase III, after phase II. The times required for phases I and II were strongly ...


    By Springer

  • Removal of inorganics from sludge and digestate: the BiAR process

    This conference contribution will present a novel technology for renewable ash-free fuel production from low-value ash-containing feedstocks such as sludge digestate, wood bark or rice husks that cannot be utilized directly as a heating fuel, because of the high (low melting point) ash content. Biomass Ash Removal (BiAR) process introduces the low-temperature solvolysis in cheap solvents to ...


    By IWA Publishing

  • Transportation of digested sludges over extreme distances

    Sludge is a residual product of sewage treatment that, as a rule, is digested and concentrated. In larger processing plants, it is dehydrated, partially dried and subsequently utilised in other processes. This usually takes the form of incineration and subsequent use as an additive to building materials by the cement industry. In the sewage treatment plant (STP) of the local authorities ...


    By ALLWEILER GmbH

  • Contaminated soils and sludge treatment plant - Case Study

    Client: Ecosistem Group, Lamezia Terme (CZ) – Italy Challenge: to transform waste into product! The Client possesses a large plant for the treatment of products contaminated with hazardous substances and materials, recycling of recovered materials and disposal of non-recyclable waste, which is considered highly ...


    By Baioni Crushing Plants Spa

  • Image analysis of sludge aggregates obtained at preliminary treatment of sewage

    The results of wastewater treatment by Al and Fe salts and by electrocoagulation with aluminum electrodes are discussed and interpreted. Those processes used alone or combined with biological treatment, were analyzed for 50 and 90% removal of phosphates. Scanning electron microscopy (SEM) of the resulting sludge from three coagulation processes defined the perimeter P and area ...


    By IWA Publishing

  • Solar drying of sewage sludge - An old method with modern technology using Wendewolf®

    Any Sewage Water Work throughout the world will produce sludge, a form of biomass growing in the basins. This biomass has to be evacuated and is, generally speaking difficult to handle! When liquid it has a dry matter of 3 to 4 %, or only 30 to 40 kg per ton of sludge, when mechanically dehydrated to 20 - 25 % most of it is still water, as an average  750 to 800 kg per ton of filter cake. ...


    By IST-Anlagenbau GmbH

  • 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

  • Study on Behavior of Sludge-derived Combustible Gases and its Safety Control on Utilizing Bio-solids

    ABSTRACTA questionnaire inquiry on prior accidents was conducted among local government operating sludge drying and incinerating facilities and cooperating research companies that are constructing such facilities. The 88 accidents reported by the respondents were investigated and the causal mechanisms associated with each typical accident pattern (by type and ...

  • Watch the Toro Equipment Stand at IFAT Munich

    So Toro Equipment presented its developments in their products in the last edition of IFAT 2014. World’s leading trade fair for water, sewage, waste and raw materials management. Toro Equipment designs and manufacturers in Spain all the equipment for the waste water treatment in our product ranges. Defender pretreatment ...


    By Toro Equipment S.L.

  • Radionuclides in wastewater treatment plants: monitoring of Sicilian plants

    Three Sicilian wastewater treatment plants were monitored to assess the occurrence and the behaviour of radionuclides. Two sampling campaigns (screening and long-term) were carried out during which liquid and solid samples have been analysed. It was found that 131I mostly occurred in the samples analysed during the screening campaign (43% of the analysed samples contained 131I). ...


    By IWA Publishing

  • Pyrobustor for the thermal treatment of biosolids

    ARA Pustertal AG operates the Tobler wastewater treatment plant in South Tyrol, Italy. The Tobler ARA facility is the fi rst and only water treatment plant in Central Europe that is housed in an underground cavern. The impressive cavern plant, whose tunnels are twice as large as that of a highway tunnel, began operation in July, 1996. The inclusion of a sludge drying plant and a thermal sludge ...


    By Eisenmann

  • 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

  • Wastewater from metal finishing industry set for more regulation from the Environmental Protection Agency

    The U.S. Environmental Protection Agency (EPA) recently released its preliminary 2014 Effluent (liquid waste or sewage discharged into a river or sea) Guidelines Program, which outlined more regulations for wastewater from those within the metal finishing industry. A filter press has been a long-trusted solution for treating metal waste, even for those applications that are difficult to dewater. ...


    By M.W. Watermark LLC

  • Dryness in filter press Draco cakes

    The design of the Draco filter presses by Toro Equipment makes it possible to obtain very dry cakes with less operator attention needed for cake unloading compared to other procedures. Nevertheless, for optimum performance in the pressing process and to ...


    By Toro Equipment S.L.

  • Advanced Dewatering & Drying System – A Performance Model

    Since the beginning of 2006, an advanced dewatering and drying system has been operating in the United Kingdom. The facility is producing greater than 40 dry metric tonnes per day of enhanced biosolids in accordance with European Union regulations. The facility is producing biosolids with pathogen levels near minimum detectable levels. This is being achieved with an energy usage less than the ...

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