waste sludge handling Articles

  • Biosolids sampling and handling approaches for microbial analyses

     ABSTRACT The protection of human health and the environment while making the use of biosolids products more practical is a joint goal of utilities and regulatory agencies. Assuring the safety of biosolids is paramount to gaining wide public acceptance of this waste-to-beneficial use product. Making effective decisions about the safety of biosolids use relies on quality data. Satisfying ...

  • Sludge Blanket Theory: Digging deeper

    With over 50 years of design and manufacturing experience, we are rightly proud of our British-built environmentally friendly SludgeWatch 715 Sludge Blanket Detector. Our user-friendly design is highly portable, simple to use and along with its low cost has worldwide appeal. Things have changed somewhat since our first Sludge Blanket Detector was made back in 1974. No more messy man-handling of ...


    By Partech (Electronics) Ltd.

  • Redefining Solid Waste -- Again

    On March 26, 2007, EPA announced the issuance of a sweeping proposal to modify the RCRA definition of solid waste. The proposal seeks to streamline regulation of hazardous secondary materials, and revise the definition of solid waste to exclude certain secondary materials from RCRA regulation to promote the legitimate recycling of these materials. Proposal elements The proposal would ...


    By Bergeson & Campbell, P.C.

  • 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 ...

  • Evaluation of sludge handling using acidification and sequential aluminum coagulant recovery: case study of El-Sheikh Zayed WTP

    Huge amounts of water treatment sludge are wasted annually in Egypt. One common practice of sludge handling is to discharge into waterways or by disposal after drying into landfills. Currently, there is a critical need for sustainable solutions that provide environmental protection as well as benefits for water producers. Coagulant recovery is not new but is still a good solution for sludge ...


    By IWA Publishing

  • Processing technology for radioactive wastes

    For 20 years now, AVA has been delivering innovative mixers, dryers, and systems for environmental and processing technologies. The treatment of highly contaminated materials has always been one of our core competencies. For more than 10 years, AVA Technology has been applied for the processing of radioactive wastes. The application of AVA mixers and reactors may be divided into two main ...


    By AVA GmbH u. Co. KG

  • Data Requirements for Soil, Sediment, and Sludge

    Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...

  • Correlation of wood-based components and dewatering properties of waste activated sludge from pulp and paper industry

    Large amounts of wet sludge are produced annually in municipal and industrial wastewater treatment. Already in pulp and paper industry, more than ten million tons of primary sludge, waste activated sludge, and de-inking sludge is generated. Waste activated sludge contains large quantities of bound water, which is difficult to dewater. Low water content would be a matter of high calorific value in ...


    By IWA Publishing

  • Effect of ozonation on activated sludge from pulp and paper industry

    Aerobic biological treatment with activated sludge is the predominant process all over the world for treatment of pulp and paper industry wastewater. 50–70% of the biodegradable organic material is oxidized to CO2 and the rest is converted to bacterial biomass, typically termed as excess sludge or waste activated sludge (WAS). Handling and disposal of WAS in general and in particular from the ...


    By IWA Publishing

  • CH#830 - Bioaugmentation Improves Performance of Brewery Waste Treatment Plant

    Introduction This packaging plant finishes 'heavy' beer, a liquid concentrate, into the well-known canned and bottled products. The plant handles 50,000 barrels per week and generates over 350,000 gallons of wastewater per day. Wastes are treated at the plant's 0.5 MGD waste treatment facility which operates under a standard discharge NPDES permit. Waste beer is the main constituent of ...

  • Processing Wastewater Sludge Using Dewatering Containers

    The relative cost of dewatering equipment varies widely and is directly related to the processing rate. For smaller utilities that need to dewater sludge in batches, dewatering containers are an alternative that can be relatively inexpensive and simple when compared to other technologies on the market. The most common type of dewatering container is based on a roll-off box design, although any ...

  • Polling the Experts to Assess Biosolids Sampling and Handling Methods for USEPA-Approved Microbial Detection Techniques

    Protecting human health and the environment while making the use of biosolid products more practical is a joint goal of utilities and regulatory agencies. As waste disposal costs rise and demands for sustainable use of resources increase, greater reliance on by-product reutilization will be needed. Assuring the safety of biosolids is paramount to gaining wide public acceptance of this reuse ...

  • Waste water treatment costs reduced by 50% with rotary vacuum precoat filter - Case Study

    Problem: The solids separation system at Lindc's waste water treatment facility had high operating, maintenance and sludge disposal costs. High operating costs were caused by the large pumps and special treatment chemical required to operate the filter, and frequent cleaning, repair and replacement of filter elements resulted in high maintenance costs. Union Carbide ...


    By Komline-Sanderson

  • New solid waste definition proposed

    When the Boiler MACT rule was vacated in 2007, one key element in the court challenge was that many non-fossil fuel materials burned in industrial boilers should be classified as solid wastes and regulated accordingly. Along with the recently proposed Boiler MACT and rules for commercial/industrial/solid waste incinerators (CISWI), EPA proposed criteria to determine whether non-hazardous ...


    By Trinity Consultants

  • Nuclear Plant in southeastern United States case study

    Turning Liquid Waste into Solid Money Savings using QUIK-SOLID© Project Background: A nuclear plant located in southeastern United States had to dispose of approximately 7,000 gallons (26,488 L) of liquid sludge that resulted from aggressive preventive maintenance activities. The plant stored the watery sludge in B-25 boxes (90 ft each). The slightly ...


    By CETCO

  • Ex Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. However, ex situ treatment requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...

  • Neptune project deliverable D4.1

    Assessment of environmental sustainability and best practice The main objectives of NEPTUNE WP4 include: Complementation of state-of-the-art life cycle assessment (LCA) tcover specific biological effects (e.g. endocrine disruption) of micropollutants and pathogens. Applying the LCA methodology on a variety of wastewater and sludge technologies in order tassess the environmental ...


    By IWA Publishing

  • French biogas plant relies on Bredel hose pumps for hot abrasive slurry handling - Case Study

    One of the largest biogas plants in France has recently been commissioned, with three Bredel 65 hose pumps from Watson-Marlow Fluid Technology Group (WMFTG) at its core. The pumps are being used to transfer ...

  • Efb Juice/Ffb Juice/Pome Treatment Plant (Industrial Process Waste Water) – Malaysia

    Implementing state-of-art wastewater treatment methodologies for Palm oil Waste Waster in Malaysia and bring that to Discharge Standard Level. CLIENT’S OBJECTIVE Wastewater Treatment of 350 MT EFB Juice/Day having characteristics 6% Oil, 15 – 20% Fibers and 2 – 3% Solids Consistency and Energy Production in the form of methane rich Biogas. ...


    By WOG Group

  • Rotomite application, Decatur, Arkansas

    The Town of Decaur, Ark., is using a self-propelled dredging system as part of a new biosilids management program designed to reduce the cost of sludge disposal and increase solids detention time in-plant. While less than 1,000 people live inDecatur, the town's wastewater treatment plant handles flow equivalent to a population of 40,000. The primary contributor to these flows is a poultry ...


    By SRS Crisafulli, Inc.

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