sludge cake Articles

  • Increased plant efficiency, City of Checotah, Oklahoma

    The City of Checotah, Oklahoma was experiencing excessive solids, foam and grease in their 0.5 MGD extended aeration activated sludge treatment facility. With a daily average flow of 0.25 million gallons per day, the plant had tremendous amounts of foam and grease in the aeration basin with the sidewalls caked with sludge. The centerwells of the clarifier were filled with foam and grease. The ...


    By Byo-Gon, Inc.

  • Paint

    Problem: A paint manufacturer, that produces both oil and water based paints, needed help to solve their liquid sludge problem. At that time the wastewater was batch treated and consisted of a chemical addition process followed by settling. This was to be changed in the near future to a continuous type treatment system. The settled sludge consistency varied form 5% to 10%. The ...


    By HydroCal Inc.

  • A combined reed bed/freezing bed technology for septage treatment and reuse in cold climate regions

    A combined reed bed-freezing bed (RB-FB) technology was effective at treating septage under Canadian climatic conditions over a 5-year period with average loading rates of 82–104 kg TS/m2/y. Varying hydraulic and solid loading rates as well as the increasing sludge cake with time had little to no effect on treatment efficiency, with almost complete removal of organic matter, solids, heavy ...


    By IWA Publishing

  • "The maintenance works now became much easier." (US)

    This sewage treatment plant had always faced problems with the belt press which had been installed. The end-user had not only had problems with high cost for water consumption but also had maintenance issues arising out of frequently caused clogging problems. Moreover, since this plant mixes sludge cake with wood chips for composting, there had also been an issue concerning the dryness of sludge ...


    By AMCON Inc.

  • Effect of daylight on regrowth of bacteria in anaerobically digested sludge

    This study investigated the regrowth of total coliform, Salmonella, and Clostridium perfringens in anaerobically digested sludge after centrifuge dewatering in the presence and absence of daylight. Sludge cake and centrate samples were collected from a treatment plant, and half of the samples was stored in daylight and the other half was stored in dark for three weeks. The ...


    By IWA Publishing

  • Synthesis and characterisation of new cationic polyelectrolytes by inverse emulsion polymerisation and their application in activated sludge dewatering

    Water soluble hydrophobically associated polyelectrolytes were copolymerised with dimethyl- [2-(2-methyl-acryloyloxy)-ethyl]-alkyl ammonium bromide (alkyl: propyl, hexyl, dodecyl) (DEACn) and acrylamide (AM) in inverse emulsion. Cationic hydrophobically modified polyacrylamides having different molecule weight and cationic degree were obtained by varying the total monomer concentration and ...


    By Inderscience Publishers

  • A novel alum-sludge based Constructed Wetland system to reduce pollution effects of agricultural run-off: first results

    This paper is a research brief highlighting the development of a novel alum-sludge based Constructed Wetland (CW) system aimed at reducing the pollution effects of agricultural run-offs. Alum sludge is a by-product of drinking water treatment plants where aluminium sulphate is used as coagulant. The alum sludge cakes were used as the main support matrix in the constructed wetland system, having ...


    By Inderscience Publishers

  • Effects of Anaerobic Digester Sludge Age on Odors from Dewatered Biosolids

    Dewatered sludge cakes from bench scale anaerobic digesters operated at mesophilic temperatures and solids retention times (SRT) ranging from 10 days to 40 days were evaluated for their sulfur odor generation potential. Extracellular Polymeric Substances (EPS) extraction for digested sludge samples was also carried out. Static headspace sulfur gas analysis was successfully used to compare ...

  • Salmon Processor 2

    This facility generates 5,000 gallons of 4-6% solids sludge from their DAF using Floccin 1105. In addition, there are 24 bins per day (about 1 cubic yard each or 250 gallons) of nonedibles defined as off spec materials, cooking oil, batter, hot dogs, and chicken parts. Currently, 13 loads are transported for disposal to offsite disposal facilities that have hauling as well as tipping fees. In an ...


    By Integrated Engineers Inc.

  • One of Europe’s largest wastewater plants handles 2 million challenges a day. What are yours? - Case Study

    In Ambarli, Turkey, more than two million people depend on the capabilities of just one wastewater treatment plant. But as strict new environmental regulations came into effect, the city’s outdated facilities became unsustainable. To meet new demands, the new facility would need to treat 400,000 cubic meters of sewage per day within a very compact building. Technologies, costs, ...

  • Novel anaerobic digestion process with sludge ozonation for economically feasible power production from biogas

    A novel process scheme was developed to achieve economically feasible energy recovery from anaerobic digestion. The new process scheme employs a hybrid configuration of mesophilic and thermophilic anaerobic digestion with sludge ozonation: the ozonated sludge is first degraded in a thermophilic digester and then further degraded in a mesophilic digester. In small-scale pilot experiments of the ...


    By IWA Publishing

  • Impact of sludge retention time on sludge characteristics and microbial community in MBR

    In this study, the impact of sludge retention time (SRT) on sludge characteristics and microbial community and the effect on membrane fouling in membrane bioreactor (MBR) was investigated. The results show that MBR with longer SRT has less fouling propensity, in agreement with other studies, despite the fact that the MBR with longer SRT contained higher MLSS and smaller particle size. However, ...


    By IWA Publishing

  • Environmental sludge treatment

    During the process of wastewater treatment, sludge generation is an important and at times crucial issue to be addressed as inadequate sludge handling system can pose serious environmental implications. Liquid sludge can be easily thickened and reduced to a solid cake via sludge thickening / dewatering. This reduces the volume of liquid sludge significantly, usually resulting in a quite ...


    By Doyen Machinery CO., Ltd

  • Škvorec WWTP in Czech Republic - Case Study

    Client's voice Since we had installed VOLUTE Dewatering Press in our waste water treatment plant I realized how much time we were wasting using dewatering bags. VOLUTE doesn´t need my presence and works fully automatically. I don´t sometimes even know that there is a dewatering unit in operation. Dewatering Data Sludge Type: Waste ...


    By AMCON Inc.

  • Screw Press Solusi Limbah Textile

    Industri Textile merupakan industri yang sangat strategis di Indonesia Saat ini, Kebutuhan pasar yang semakin meningkat menjadikan sebagian besar masyarakatmenggeluti usaha ini, Para Pengusaha di industri textile semakin memperbaharui teknologi mereka dalam produksi textile. Selain itu salah satu hal yang memungkinkan menjadi sebuah masalah dalam produksi textile adalah pengolahan limbah textile ...


    By Grinviro Biotekno Indonesia

  • Huber screenings and Sludge treatment equipment in Northern Ireland - Case study

    Almost a year ago we started up our screenings and sludge treatment equipment that we had supplied to Northern Ireland. Our equipment is installed in the newly constructed North Coast wastewater treatment plant of Northern Ireland Water at Craigtownmore. Our contract included supply, installation and start-up of our systems for screenings handling, for mechanical sludge thickening and sludge ...


    By Hydroflux Pty Ltd

  • Characteristics of different fractions of microbial flocs and their role in membrane fouling

    Characteristics of different fractions (small flocs vs. large flocs) of sludge flocs from a submerged anaerobic membrane bioreactor treating thermomechanical pulping (TMP) whitewater were determined using various analytic techniques, including extraction and chemical analysis of extracellular polymeric substances (EPS), particle size analyzer, and polymer chain reaction (PCR)-denaturing gradient ...


    By IWA Publishing

  • Cambi – the digester `turbo charger`

    ABSTRACT A new patented process design has re-invented thermal hydrolysis in sludge treatment. The first plant from Cambi for hydrolysis of sewage sludge was built in 1995 at the HIAS WwTP, Hamar, Norway for a design capacity of 3500 Mg DS/year. The sludge is directly heated by injection of live steam. During internal recycling of steam a low energy consumption is secured. Predewatering raw ...


    By Cambi Group AS

  • The effect of iron and aluminium for phosphorus removal on anaerobic digestion and organic sulfur generation

    The addition of iron or aluminium into activated sludge basins for phosphorus removal is likely to impact both the efficiency of the anaerobic digestion process and the generation of odor-causing compounds following digestion and dewatering. In this study, the impact of iron and aluminium addition on digestion and odor-causing compounds was investigated by using batch digestion of combined ...


    By IWA Publishing

  • An analysis of the environmental management elements related to the improvements of the drying kinetics of waste activated sludge by Fenton peroxidation

    Advanced sludge treatment processes (AST) reduce the amount of sludge produced and improve the dewaterability, thus probably also affecting the heat transfer properties and the drying characteristics of the sludge. This paper studies the influence of the Fenton peroxidation on the thermal conductivity of the sludge. Results demonstrate that the Fenton's peroxidation improves the sludge cake ...


    By Inderscience Publishers

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