sludge conveyor Articles

  • Common Treatment Technologies for Radionuclides in Soil, Sediment, and Sludge

    Unlike organic contaminants (and similar to metals), radionuclides cannot be destroyed or degraded; therefore, remediation technologies applicable to radionuclides involve separation, concentration/volume reduction, and/or immobilization. The most commonly used treatment technology for radionuclides in soil, sediment, and sludge is solidification/stabilization (S/S). This treatment technology is ...

  • Exposure to dust, endotoxin and airborne microorganisms in wastewater sludge thermal drying units

    The objective of this study was to assess workers' exposure to bioaerosols in sludge drying units. Simultaneous collection of inhalable dust and airborne biological agents was carried out using rotating cup samplers (CIP 10, Arelco). Sixteen stationary and 30 personal measurements were performed in three drying plants, during summer and winter. Microbial content of air was characterized by high ...


    By IWA Publishing

  • Sludge suspension from numerous differing steel industry residues

    econ have been active for many years as a supplier of mixing units for the metal and steel industry. One of our long term clients requested that econ quote a system to produce a highly viscous suspension from nu-merous differing residues. The aim was to use this suspension as a protective layer inside the transport ves-sels of the hot, molten slag. Thus, a number of differing technical ...


    By econ industries GmbH

  • Solidification / Immobilisation of sludge from physical-chemical WWT process

    In 2003 econ received an inquiry from a service company operating an industrial waste water treatment plant. At the end of the physical-chemical WWT process this client generated metal-hydroxide sludge from his chamber filter presses. Originally he discharged the sludge into skips and brought it to a hazardous waste landfill. At this landfill, a solidification process was used to stabilise ...


    By econ industries GmbH

  • Heat Pump Used to Drain Contaminated Sludge in a Steel Factory

    Summary In 1987, new regulations required that factories dispose of their contaminated water and waste themselves. Making galvanised steel wire, the Stelfil factory produces sludge contaminated with lead and zinc. Stelfil spent thousands of dollars to bury this waste and evaluated three systems to remove most of the water: a gas dryer, an induction heated screw conveyor and a heat pump system. ...


  • Faroe Maritime Technic provide total solution for treating Oily Sludge and contaminated Oily Water

    We at Faroe Maritime Technic provide total solution for treating Oily Sludge and contaminated Oily Water. Firstly our products - The Sludge Dewatering Separator and The Oil Conveyor are developed for the marine industry, but the same need is also on Power plants on shore. All Oily driven Power plants have these same need for treating Oily Sludge. A brief introduction of our products. ...


    By Faroe Maritime Technic

  • WWTP Quesna, Mubarak Industrial City

    During Phase I of the project, DEWACO delivered a complete sludge dewatering solution for comprising of: 3 nos. Belt Filter presses type NPD31L (3.1m belt width) and all other peripheral equipment including polymer preparation and post dilution, pups, conveyors, PLC etc. for dewatering and 4 sets of chain and flight type sludge and scum collectors ( dimensions: 36m L x 5,5m W x 2,35m ...


    By Dewaco Ltd

  • Newport WWTP Newport, WA

    In 2003 the city of Newport began a study of upgrading the city’s waste water treatment plant. Plant flows were increasing and the city wanted to process sewage from septage haulers handling recreational development in the area. Esvelt Environmental Engineering Company was selected to do the study and facility design. One of the first decisions made was rather than expand aeration basins, ...


    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

  • You can dewater your cake and pump it too! Conveyance options for OCSD Plant 1

    OCSD is currently upgrading Reclamation Plant 1 to co-thicken primary and waste activated solids using centrifuges. Digested solids will also be dewatered using centrifuges and the two processes will be housed in the same building. A small building footprint, stringent redundancy requirements, and a 200 foot distance between the dewatering and storage facilities requires innovative engineering ...

  • Accuracy and Cost Savings from Automatic Optimization of Dewatering

    Improvements in sensor and automation technology in recent years have made it possible to design a system to control the key variable parameters in and around the dewatering process. By continuously analyzing feed conditions and output from the process, an automated optimization system can make necessary proactive adjustments to the internal settings of the dewatering equipment, the polymer ...

  • 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

  • Woodstock WWTP Town of Woodstock, VA

    The Town of Woodstock was hauling liquid sludge to a regional plant which was having difficulty handling the high solids loading to their own plant. Woodstock needed of a temporary dewatering solution and decided to control their destiny by purchasing or renting dewatering equipment. With a growing town and an upcoming facility expansion, the plant had no building for equipment and decided that a ...


    By BDP Industries

  • A STIEFEL project UTO Uvrier case study

    The waste incineration plant UTO Uvrier is situated in the south western part of Switzerland. The Association which controls the plant was established in 1969 and treats waste from 44 municipalities with a combined population of 170,000 inhabitants. The principal task of UTO Uvrier is the thermal heat recovery from urban and industrial waste. Apart from this, UTO also treats other types of waste ...


    By Jakob Stiefel GmbH

  • Shell Green Mersey valley processing centre extension

    An extension to an existing sludge incineration and treatment plant The Client United Utilities (UU) are the 2nd largest water company in England /Wales. They are responsible for an area in the north west of the UK, which includes major cities such as Manchester and Liverpool. The Solution Background The Mersey Valley ...


  • Bioremediation of Effluent the Pulp and Paper Industry

    The treatment of industrial effluent from the paper manufacturing facilities in British Columbia is a major concern because the effluent is discharged into prime salmon habitat in the marine environment (Cross, 1994). High levels of biological oxygen demand (BOD) in the effluent reduce the dissolved oxygen (DO) available to species in the marine environment. In 1988, the Federal Department of ...


  • Wastewater-Solids Dewatering Odor Control - Case Study

    Background The Milan Wastewater Treatment Plant, located just south of Moline, Illinois, is a 1.7 MGD (6,434 m3/day) activated sludge facility with an average wastewater flow of 700,000 gpd to 800,000 gpd. This facility dewaters primary sludge using a belt filter press (Figure 1). The press operates an average of three times per month, 8 hours per day at a pump rate of 100 gpm. The ...


    By Carus Corporation

  • Solidification / Immobilisation of hazardous waste for subterranean storage

    The use of subterranean salt mines for the final storage of inorganic hazardous waste is state of the art in Germany, and in fact most other European countries. However, the technical requirements to prepare the waste in an appropriate way are quite challenging. Over ten years ago econ supplied a plant to a salt mine in eastern Germany. The plant uses econ’s unique batch-wise working mixing ...


    By econ industries GmbH

  • Comprehensive Odor Emissions Study Hall Street Wastewater Treatment Plant Concord, New Hampshire

    ABSTRACTThe operation of the Hall Street wastewater treatment plant (WWTP) in Concord, NH has caused the emission of objectionable odors from various liquid and solids treatment processes resulting in periodic odor complaints from its neighbors. The City of Concord retained Fay, Spofford & Thorndike (FST) to conduct a comprehensive odor emissions study at the Hall Street WWTP and to recommend ...

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