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process wastewater sludge Applications

  • Wastewater treatment for the sludge treatment

    The most used techniques to reduce sludge water content include physical-chemical processes, such as flottation or the use of mechanical systems, such as press filters.

    By Aguambiente based in La Cistérniga, SPAIN.

  • Thickening and dewatering of sludges for water and wastewater industry

    Both economic and ecological demands make maximum dewatering of sludge a most crucial step in the process flow, especially for the pulp and paper industry with their large quantities of sludge to handle. A highest possible dry content of dewatered sludge minimizes weight and volume, hence achieving the following objectives: reduction of transport and disposal cost. high heating value for incineration without additional fuel. With the sludge dewatering systems including both AKSE S disc thickener and AKUPRESS BX screw press BELLMER KUFFERATH Machinery offers plant and equipment able to dewater structured sludges to maximum dry contents.

    By BELLMER KUFFERATH Machinery GmbH based in Düren, GERMANY.

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    Ozone Water Treatment for Activated Sludge Process Plants

    Ozone breaks up filaments and improves settling characteristics of the sludge... Filamentous sludge is a common problem at activated sludge plants. With ozonation of the return sludge flow it is possible to reduced the amount of filamentous bacteria in the sludge and significantly increased the settling properties of the sludge.This in turn means better performance of the activated sludge process. When a bioreactor is connected to the sludge line the removal of the damaging filamentous bacteria means higher quality sludge in the bioreactor, which leads to higher biogas production.

    By Primozone Production AB based in Löddeköpinge, SWEDEN.

  • Sludge dewatering and water recovery from sand and aggregate washing processes

    Bilfinger Water Technologies designs and builds complete water recovery and slurry dewatering systems for sand and aggregate washing plants. These high-performance systems minimize water usage and solid disposal problems.

    By Aqseptence Group GmbH based in Aarbergen, GERMANY.

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    Aeration and mixing technologies for activated sludge systems

    The activated sludge process uses a mass of organisms to aerobically treat wastewater and is used to remove biodegradable organics from both municipal and industrial wastewaters.

    By Aeration Industries International (AII) based in Chaska, MINNESOTA (USA).

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    Municipal wastewater solutions for thickening industry

    WesTech thickeners are an excellent choice prior to digestion. Although gravity thickening has long been successful, Dissolved Air Flotation (DAF) thickening has several process and sizing advantages, especially for BNR applications.

    By WesTech Engineering, Inc. based in Salt Lake City, UTAH (USA).

  • Wastewater treatment solutions for anaerobic sludge digestion sector

    Anaerobic digestion is a series of processes in which microorganisms break down biodegradable material in the absence of oxygen, used for industrial or domestic purposes to manage waste and/or to release energy. It is widely used as part of the process to treat wastewater, like Upflow Anaerobic Sludge Blanket (UASB) reactors. As part of an integrated waste management system, anaerobic digestion reduces the emission of landfill gas into the atmosphere. Anaerobic digestion is widely used as a renewable energy source because the process produces a methane and carbon dioxide rich biogas suitable for energy production, helping to replace fossil fuels. The nutrient-rich digestate which is also produced can be used as fertilizer. The digestion process begins with bacterial hydrolysis of the input materials in order to break down insoluble organic polymers such as carbohydrates and make them available for other bacteria. Acidogenic bacteria then convert the sugars and amino acids into carbon dioxide, hydrogen, ammonia, and organic acids. Acetogenic bacteria then convert these resulting organic acids into acetic acid, along with additional ammonia, hydrogen, and carbon dioxide. Finally, methanogens convert these products to methane and carbon dioxide.

    By QM Environmental International B.V. based in The Hague, NETHERLANDS.

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    Environmental dewatering solutions for industrial wastewater processing

    TenCate Geotube technology provides cost-effective and sure dewatering and containment in a wide variety of industries.  In Power and Utility, Pulp and Paper and other general industries that produce sludge, TenCate Geotube dewatering technology enables the recovery of valuable materials, provides structural stability, improves water quality, or just reduces storage footprint by sometimes 50 to 80%.  The dewatering containers can be custom-sized to the application, placed in available space between other structures, and removed once dewatering is complete. In some cases, conditioners or polymers are used to promote flocculation to increase dewatering rate, improve solids retention and filtrate quality.

    By TenCate Geosynthetics Netherlands bv based in AE in Nijverdal, NETHERLANDS.

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    Ozone Water Treatment for Filamentous sludge

    Filamentous sludge is a common problem at activated sludge plants. With ozonation of the return sludge flow it is possible to reduced the amount of filamentous bacteria in the sludge and significantly increased the settling properties of the sludge.This in turn means better performance of the activated sludge process. When a bioreactor is connected to the sludge line the removal of the damaging filamentous bacteria means higher quality sludge in the bioreactor, which leads to higher biogas production.

    By Primozone Production AB based in Löddeköpinge, SWEDEN.

  • Process Belt Meshes for Dewatering / Pressing with Belt Presses

    WEAVEinMotion process belts are effective and robust cores for belt presses which are particularly efficiently acting systems for dewatering sludges and fruit mashes. A decrease in transport, disposal and recycling costs is obtained thanks to the reduction in volume achieved.

    By GKD - Gebr. Kufferath AG based in Düren, GERMANY.

  • Waste water respirometry solutions for process optimisation

    Respiration rate of activated sludge has been recognised as a key controlling element in the modelling of process control, by the International Water Association Task Group. Actual respiration rate of the sludge in the aeration tanks, as well as the endogenous and maximum respiration rates are variables that indicate the rate of BOD removal and aeration requirements. The maximum respiration rate is also closely linked to the Critical Oxygen Concentration point, that is, the point at which diffusion over the bacterial cell walls ceases and therefore biodegradation is significantly compromised.

    By Strathkelvin Instruments Ltd. based in North Lanarkshire, UNITED KINGDOM.

  • Wastewater treatment solution for the industrial industries

    Schwing Bioset, Inc.`s technical expertise and innovative approach to the design of Fluidized Bed dryers, coolers, and conditioners has resulted in Schwing Bioset fast becoming a preferred partner of companies processing municipal solids and companies processing coal. The versatility of Schwing Bioset`s piston pumps allow them to be used in many industries to pump a wide range of materials such as oil sludges, dredging spoils, food wastes, and coal slurries. In fact, Schwing Bioset pumps are so versatile they can pump just about anything that can be fed into them.

    By Schwing Bioset, Inc. based in Somerset, WISCONSIN (USA).

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    Anerobic treatment of wastewater

    30 years of experience in the design, construction, and operation of waste-to-energy plants for a wide range of industrial and municipal clients. Our proprietary anaerobic treatment technologies process wastewater and sludge to produce biogas, which can b

    By Fluence Corporation based in White Plains, NEW YORK (USA).

  • Belt filter press

    Belt Filter Press is often applied in wastewater treatment plant sludge dewatering process and it is one of the most cost effective options regardless of the type of sludge feed into the systems. There are several combined processes added into one unit and it involves different applications such as chemical conditioning, gravity drainage and mechanical shearing and compression effect to remove water and dry up the sludge. Today, belt filter presses are widely used and it has become a standard for general wastewater sludge application and thus, learning how to optimize and use it to your advantage is very important.

    By Henan Jincheng Filter Equipment Co., Ltd based in Yuzhou city Henan province, CHINA.

  • Enhanced Biosolids and Bio Sludge Dewatering with Wilsa EWC

    IMPROVED BIOSOLIDS/ BIO SLUDGE DEWATERING WITH WILSA® CONDITIONING The WILSA ElectroWave™ effect can be used to condition polar fluids to alter their physical properties, improving several chemical and physical processes. - Reducing surface tension to improve the ability of water to repel solids - break physical / chemical emulsions - Increasing the contact angle of water - improve coalescing of solid particulate toaccelerate phase separation - Lowering the viscosity of water - reduce friction of flocculated solids dropping through less viscous water - Lower viscosity, reduced surface tension and increased contact angle of water - improve aeration of wastewater Installation of WILSA® ElectroWave Conditioner upstream of a belt press at a wastewater treatment plant resulted in polymer usage dropping by >50% while achieving much dryer solids.

    By Hudson Industries based in Vienna, OHIO (USA).

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    Real-time Control System for Wastewater Treatment Plants

    Wastewater treatment plants (WWTP) are subject to large variation in flow and load, not to speak of uncertainties on the composition of the incoming wastewater. On top of that, the activated sludge treatment process, as used by the vast majority of treatment plants, is difficult to control due to the complex behaviour of the biological process. Nevertheless WWTPs are run 24/7, with operators and management challenged to meet ever tightening environmental regulations.

    In order to meet the operational demands of modern-day plants, a new control system was developed. Proprietary control algorithms were introduced based on a large set of data from nutrient measurements in various WWTPs. The customer`s benefits are twofold: (1) achieving optimum effuent quality and, at th same time, (2) lowering energy needs and dosing of commidity chemicals.

    By AppliTek NV based in Nazareth, BELGIUM.

  • Wastewater Treatment for the Bioenergy Industry

    The waste (water) streams from the production of (bio) ethanol or ethanol spirits are generally very suitable for anaerobic treatment, due to their organic compounds. 

    The effluent streams produced by the different production processes are influences by a great number of parameters such as, process design, milling process, type of raw material, etc. This requires special attention in the design of the treatment plant for this type of industry. 

    Typical streams from these industries that can be treated are, whole stillage, thin stillage, spent wash, vinasse and condensate from evaporator. The Upflow Anaerobic Sludge Blanket (UASB) process and the External Circulation Sludge Bed (ECSB) process from HydroThane are worldwide proven processes for the treatment of this type of waste water.

    By HydroThane STP BV based in KC `s Hertogenbosch, NETHERLANDS.

  • Solutions for the small tank cleaning and degassing

    BioSolve Pinkwater is a proven tool used in the process of removing and repairing fuel storage tanks of all sizes.  Pinkwater is best known for its unmatched performance suppressing volatile organic vapors that are present when working with fuel tanks (both AST and UST). The product can also be used to assist in loosening and removing tank bottom sludge.  Major US and foreign oil companies as well as small tank removal teams find working with Pinkwater to be safe, simple, effective and worker friendly as compared to alternative approaches to tank cleaning and degassing.

    By The BioSolve Company based in Lexington, MASSACHUSETTS (USA).

  • Precision moisture analysis instruments for fast, accurate solids analysis for wastewater

    Computrac moisture, solids and ash analyzers are able to quickly and easily determine solids content of cakes, slurries and sludge samples for the wastewater, hazardous waste and landfill industries. Identifying the optimal solids content of these byproducts of the treatment process can provide significant cost savings on chemical additives, haulage and incineration. Computrac analyzers are easy to use and their rugged and reliable design means that you’ll get accurate results whether they’re in the plant or in the lab. They can also be used to determine whether or not total solids content in landfills is consistent with state and local regulations.

    By Arizona Instrument LLC based in Chandler, ARIZONA (USA).

  • Aquatech Enhanced Oil Recovery (EOR)

    In a Steamflood Enhanced Oil Recovery (EOR) process, steam is injected in the well, lowering the viscosity of heavy oil suitable for extraction through the production wells. The fluid from the wells is a mixture of oil, water and gas and goes through a separation system to separate the three. The separated produced water is heavily contaminated with dissolved solids and hydrocarbons. Aquatech’s Steamflood Enhanced Oil Recovery (EOR) Technology offers the integrated solutions for the treatment EOR produced water for boilers, generating a purified product that can be reused for the production and injection of steam. Our turnkey approach to treatment includes coordinating the logistics of wastewater removal off-site and any sludge disposal.

    By Aquatech International Corporation based in Canonsburg, PENNSYLVANIA (USA).

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