sludge discharge Articles

  • White Paper: Cyclical Aeration Control- Combining Aerobic & Anoxic Conditions in One Basin

    Increase Water Quality with Cyclical Aeration With increased effluent pollution restrictions on municipal wastewater treatment plants, cities are pressed to find ways to economically increase their effluent quality with little to no funding. Many new NPDES permits ...

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Development and testing of a low sludge discharge membrane bioreactor for greywater reclamation

    A low sludge discharge membrane bioreactor (LSDMBR) for greywater reclamation was developed and tested in this study. LSDMBR was designed by combining an aerobic activated sludge process with an immersed membrane filtration process. LSDMBR offers the following advantages over conventional activated sludge processes. Firstly, LSDMBR has a high biomass concentration attributed to membrane ...


  • Modeling and verification of selective sludge discharge as the controlling factor for aerobic granulation

    Mathematical simulation and laboratory experiments were conducted to investigate the controlling factor for aerobic sludge granulation. A model was used to describe the biomass dynamics during the granulation process. The simulation results indicate that the selective discharge of small and loose sludge flocs is the key controlling factor for granulation. In the experimental studies, tests were ...


    By IWA Publishing

  • A retrofitted activated-sludge plant with sequential nitritation and anammox obtains dischargeable effluent

    Abstract New Activated Sludge (NAS) represents a hybrid, floc-based nitrogen removal process, based on the control of solids retention times (SRT) and dissolved oxygen (DO) levels. The aim of this study was to examine the performance of a full-scale NAS plant, which treated anaerobically digested industrial wastewater. The batch-fed partial nitritation step oxidized nitrogen to nitrite ...


    By Colsen International b.v.

  • Sludge Treatment and Disposal Technologies

    Most wastewater treatment processes produce a by-product that purifies wastewater before it is released into local waterways. This by-product is named as sludge. Typically in solid, semi-solid or liquid state, it is in fact an amalgamation of all the liquid wastes that are discharged by domestic houses, commercial properties, industry, and/or agriculture after aerobic biological treatment. ...


    By IWA Publishing

  • Colloidal sludge - case study

    YEAR: 2003 COUNTRY: ITALY N° and MACHINERY MODEL EMPLOYED: 1  JETFILTER RH 1000.70 Diemme® Filtration The customer is a company that produces ceramic pastes, requiring the dewatering of ceramic barbotine, a colloidal material which is difficult to dewater. It already had a filter press that did not have the ...

  • Sludge Respirometry at Avecia, Grangemouth

    Untitled Document Avecia is now using the Strathkelvin Activated Sludge Respirometer in its effluent management programme, at its ...

  • Technical Focus: Sludge Blanket

    Regardless of treatment process, sludge blanket control is an important aspect of any wastewater treatment plant, and correct monitoring and treatment of sludge is paramount for efficiency and cost control. Manual monitoring of sludge blanket levels is an occasional and often rushed method of control and can lead to inaccuracies being compounded over time, potentially leading to overspill into ...


    By Partech (Electronics) Ltd.

  • Shining a light on sludge

    HACH LANGE's Solitax turbidity/ suspended solids sensor has been integrated into a tanker reception system to enable the measurement of solids concentration in wastewater movements to and from treatment plants and in trade waste applications for monitoring strengths of imported wastes. JR Pridham Services Ltd (JRP) developed the system to provide visibility of both quantitative and qualitative ...


  • Controlling Sludge in Lamella Clarifiers

    This month we are focusing on the control of sludge blanket build up in Lamella Clarifiers. Lamella Clarifiers, also known as Inclined Plate Separators (IPS) are in common use at Waste Water Treatment Sites as small footprint plant settlement units and are often employed in ...


    By Partech (Electronics) Ltd.

  • Combined mesophilic anaerobic and thermophilic aerobic digestion process for high-strength food wastewater to increase removal efficiency and reduce sludge discharge

    In this study, a process that combines the mesophilic anaerobic digestion (MAD) process with thermophilic aerobic digestion (TAD) for high-strength food wastewater (FWW) treatment was developed to examine the removal of organic matter and methane production. All effluent discharged from the MAD process was separated into solid and liquid portions. The liquid part was discarded and the sludge ...


    By IWA Publishing

  • Pollutants in Urban Wastewater and Sewage Sludge

    Untitled Document Executive Summary Water policy in the European Union is aiming to promote sustainable water use and a major ...

  • Recycling municipal sludge with portable dredges

    Policing the pit. With today's emphasis on resource recovery, even burdensome and seemingly worthless materials are becoming increasingly valuable. Take municipal sludge, for example. For sewage treatment facilities wrestling with the problem of sludge disposal, Liquid Waste Technology may have the answer. The New Richmond, Wisconsin, USA company manufactures dredges and lagoon pumping equipment ...

  • Dewatering of Industrial Sludge - Case Study

    At Ten Cate Protect, town of Nijverdal, The Netherlands, 2006 During the wastewater treatment process at Ten Cate Protect large quantities of sewage sludge are liberated. A couple of days per week this sludge is transported in tanker trucks to a waste disposal plant. On June 14th 2005 a Geotube MDS unit was put in operation at Ten Cate Protect to separate and condense the sludge of the aerobic ...

  • Turbidity Measurements in Drinking Water, Effluent Discharges and Coagulant Controlling

    This month at Partech Water Instruments we’re talking about our turbidity sensors—fantastic to use as an environmental indicator. So how can they be used? We’re here to tell you about turbidity sensors being utilised for drinking water, effluent discharges and coagulant controlling. Turbidity Sensors and Drinking Water Turbidity sensors ...


    By Partech (Electronics) Ltd.

  • MPT CASE STUDY: Accomplishing Zero Discharge at a Major Gravure Printing Facility

    The Opportunity The gravure printing industry comprises primarily of three business sectors; publications, packaging and product printing. The ...


  • Ammonia Stripping And Integrated Fixed-Film Activated Sludge

    The Keystone Sanitary Landfill (KSL) is located at the Keystone Industrial Park in Dunmore and Throop Boroughs, Pennsylvania. The 618 acre landfill site was originally permitted for 5,000 tons of trash per day, and recently received a permit to develop more cells to extend the operation for another 25 years at 5,000 tons per day. Landfill leachate, an inevitable by-product of landfilling, is ...


  • Water treatment plant sludge disposal into stabilization ponds

    Researchers have paid particular attention to the disposal of sludge produced in water treatment plants (WTPs) into wastewater treatment plants (WWTPs) for further processing, mainly because it is considered an attractive alternative for the treatment of waste generated in water production processes. This study evaluated the effects of flow equalization and disposal of sludge, from a ...


    By IWA Publishing

  • Potential biogas production from sludges and msw in Uruguay

    Sewage treatment Montevideo's sewage is disposed into the sea by means of an outfall. Nevertheless as there are a lot of cities that are not on seashore, and most of these cities are discharging their effluents into rivers without proper treatment, a more strict sewage treatment must be done in order to achieve the discharge standards. For the 1,780,000 inhabitants the current sewage coverage is ...


    By ORBIT e.V.

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