sludge dehydrator Articles

  • 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

  • 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

  • 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

  • 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

  • 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 ...

  • 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

  • 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

  • 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

  • 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

  • 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 ...

  • Organic Fertilizer Production Plant-Design and Process

    ORGANIC FERTILIZER PRODUCTION PLANT DESIGN AND PROCESS 1.Receiving Dehydrated Cake (sewage sludge) Dehydrated cake discharged from the sewage plants and business establishments is transported by dump truck to the material tank and stored. 2. ...


    By Amisy Farming Machinery

  • Verderflex Peristaltic Industrial Pumps excel in diverse applications

    Verderflex Industrial peristaltic pumps are extremely robust pumps, ideal for heavy duty operations on intermittent or continuous duty cycles. They are a simple to use, easy to control, versatile and reliable way to pump liquids. Verderflex Industrial pumps can be used in a broad range of applications: Anaerobic Digestion Sludge Transfer Verderflex pumps were specified due ...

  • Maximum Efficiency for...Saving Water

    In an attempt to protect our ecological surroundings and minimize the negative effects of industrial processes, it is necessary to purify and recover the waters used during washing operations of sand washing, quarrying and recycling operations. The first step is to recover 100% of the waters used and to eliminate the concentration of sludge, thus Baioni's solutions aim at offering a full sludge ...


    By Baioni Crushing Plants Spa

  • Hazardous waste and not, Baioni-Dicatech system

    The identification, characterization and restoration of contaminated areas now represent a big environmental issue, both at European and national level. In the major industrialized countries the issue of contaminated land has come out in all its gravity in the late seventies when, against a widespread awakening of environmental consciousness, important pollutions events emerged. Consequently, in ...


    By Baioni Crushing Plants Spa

  • Why clean transformer oil?

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