filter cake Articles

  • Bioenergy and Biofertilizer- Improvement of Biogas Production From Filter Cake

    Abstract In the present paper some results of a study carried out on the anaerobic digestion of Sugar Mill Filter Cake (SMFC), use of natural zeolite to intensify the biogas production, as well as the use of the digestion mud, in biofertilizer quality are presented. The method allows obtaining increments of biogas production in the range of 20-40 %. It was shown that application of the mud ...


  • Removal of water-based filter cake and stimulation of the formation in one-step using an environmentally friendly chelating agent

    Chelate solutions, GLDA (pH of 3.3 to 13) and HEDTA (pH of 4 and 7) were incompatible with ╬▒-amylase over a wide range of temperatures. GLDA (pH 3.3) and HEDTA (pH 4) can be used to remove the filter cake in one step. GLDA (20 wt% in a 200 g solution and pH of 3.3) and HEDTA (20 wt% in a 200 g solution and pH 4) had 100% removal efficiency of the filter cake. The retained permeability was 110% ...


    By Inderscience Publishers

  • 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 ...

  • Deposit membrane fouling: influence of specific cake layer resistance and tangential shear stresses

    Cake fouling is the leading cause of membrane permeability decrease when filtering mixed liquor suspension containing high suspended solid concentrations. A simple model is proposed to simulate the cake resistance evolution with time by considering a macro-scale fouling linked only to the accumulation of particles on the membrane surface. This accumulation appears as the difference between the ...


    By IWA Publishing

  • Filter aids

    Filter aids are used to assist filtration of colloids, extra fine particles, gel like, and highly compactible materials, which are difficult to be filtered due to low filtrate rate, unacceptable filtrate clarity, high cake moisture content, or serious filter medium clogging. They can be used as “precoat” on the surface of filter media or in conjunction with feeding suspension as ...

  • Simulation of sludge dewatering on belt filters

    A mathematical model for belt filters was developed to determine optimum load rate and belt speed during drainage of flocculated biological sludge. Numerical simulations were performed for belt filters with and without plows, and the model fit experimental data well. Experiments showed that highly compressible cakes were formed during drainage, which was important. Due to cake compression, the ...


    By IWA Publishing

  • What are filter aids?

    Filter Aids” is a group of inert materials that can be used in filtration pretreatment. There are two objectives related to the addition of filter aids. One is to form a layer of second medium which protects the basic medium of the system. This is commonly referred to as “precoat”. The second objective of filter aids is to improve the flow rate by decreasing cake compressibility ...

  • Solid / gas separation with fabric filters

    A myriad of filter media are utilized today for separation of particulate matter in industrial gas filtration applications. These media range from single use (deposable) to semi-permanent media and include fiber, fabric, ceramic, membrane, metal mesh, and sintered metal media. Semi-permanent media are usually cleanable, either on or off-line, and are primarily intended for long-term (up to ...

  • Aerosol filtration in nanofiber filter media

    Nanofiber filter media are used in air filter applications where a compact filtration system with very high overall and fractional efficiency and low initial pressure drop  is required.  Moreover, because the aerodynamic drag force on nanofibers is very low compared to the drag on the large dust particles collected on the nanofiber media, this media is ideal for application to ...

  • To prevent blinding in dust collection systems, consider filter type, filter size and selection of the filter media used

    All dust collection systems, regardless of size, share a common problem—dust blinding. Simply stated, blinding is defined as when dust particles plug the holes in a filter and stop the flow of air through the filter, resulting in the dust collector performing poorly. All types of collectors, whether stand-alone units, cyclones or full-scale baghouses, are subject to blinding. To better ...


    By American Fabric Filter Co

  • Improve performance by installing a larger filter bag

    YOU MIGHT NOT NEED a more powerful dust collector after all. That’s the word from woodworkers who’ve replaced the original equipment filterbags on their collectors with bags that are more efficient. You might ask, “What can be more efficient than the 1 micron bag that came with my collector?” The answer is a 1 micron bag that’s properly sized for your machine and ...


    By American Fabric Filter Co

  • Advantages and basic facts for the use of Lenzing PROFILEN based filter media

    Normal PTFE filter bags have a very good chemical resistance but on the other hand they do not have a high dust separation efficiency. Lenzing PROFILEN® is a compromise between a high efficiency and a high flow rate after cleaning of gases with all the positive aspects of normal PTFE bags. Basics To acquire a better feeling and understanding for the advantages of Lenzing PROFILEN® it is necessary ...

  • Virus removal efficiency of ceramic water filters: effects of bentonite turbidity

    Ceramic water filters (CWFs) are utilized in many developing countries as point-of-use (POU) water treatment devices, to reduce waterborne pathogens in potable water. Virus removal efficiencies of several CWFs are investigated under various influent conditions using MS2 (ATCC: 15597-B1) as a surrogate phage for human enteric viruses. The addition of bentonite turbidity (6–8 NTU) in the ...


    By IWA Publishing

  • Practical Applications of Static Low Density Media Filters for Use in the Treatment of Domestic Wastewater

    ABSTRACTIn the treatment of domestic wastewater, both biological and physical contaminant removal mechanisms must occur to facilitate compliance with NPDES permit discharge requirements. Static low density media (SLDM) filters can be used to perform both of these duties allowing for the consolidation of various unit operations into one component. Previous studies have shown that both organic and ...

  • Mono nov keeps lundbeck smiling

    The W Range pump has been installed at the primary stage of production, to transfer solid organic matter from thefiltration unit to the reactor. The filter cake is discharged into a stainless steel hopper, which is fitted with sprinklers to help re-slurry the solids. The pump then transfers the slurry back to the reactor vessel. The purpose of the system is to recover the organic acid used in the ...


    By NOV Mono - Mono Pumps Ltd

  • The Use of Particulate Emission Monitors to Support Arrestment Plant Operation and Upkeep

    The operation of filtration type arrestment plant can be optimised by the effective use of Particulate Emission Monitors (eg Filter Leak Monitors and Filter Performance Monitors). Particulate Emission Monitors are installed throughout the broad spectrum of industrial processes to satisfy regulations (IPPC, Part B Guidance Notes, WID and LCPD) for emission limit enforcement. In addition, where ...


    By PCME Ltd

  • Mine backfill

    Mine backfill is defined as the material used to fill the cavities (i.e., stopes) created by underground mining. Backfilling can be a means to dispose of sludge and/ or tailings which may contain hazardous materials and to reduce surface environmental impacts by storing tailings underground. Alternately, backfilling with nonhazardous materials can allow for mining productivity improvements. To ...


    By WesTech Engineering, Inc.

  • 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

  • A Membrane Pretreatment Technology

    Nearly all membrane systems, no matter what their raw water source, must utilize some form of pretreatment to remove unwanted organic and inorganic suspended solids. Bag and cartridge filters are efficient at removing suspended solids but must be replaced on a frequent and often costly basis. Some form of suspended solids removal system that cleans itself, maintains high flow rates and stays ...

  • Dynamic Mathematical Modeling of Membrane Fouling in Submerged Membrane Bioreactors

    ABSTRACTA mathematical model is developed that accounts for internal fouling of membranes due to soluble microbial products during subcritical flux operation, and for supercritical flux fouling due to cake formation and compression.. The model takes into account the filtration effect generated by the cake. A set of differential equations is derived and solved numerically to obtain a description ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you