dewatering chemical Articles

  • Dewatering bin carryover study

    Bottom ash dewatering bins (hydro-bins) at coal fuel utility plants allow ash material to carry over to ash settling ponds, or in the case of closed loop systems, re-circulate suspended ash solids, resulting in the following problems: Frequent and expensive dredging of settling ponds Excessive wear on system components caused by re-circulating suspendedsolids Labor intensive manual ...


    By Entech Design, Inc.

  • Quarry dewatering compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering greater than 50,000 liters per day. ...


    By Greyline Instruments Inc.

  • Chitosan use in chemical conditioning for dewatering municipal-activated sludge

    This work aims to evaluate the potential use of chitosan as an eco-friendly flocculant in chemical conditioning of municipal-activated sludge. Chitosan effectiveness was compared with synthetic cationic polyelectrolyte Sedipur CF802 (Sed CF802) and ferric chloride (FeCl3). In this context, raw sludge samples from Beni-Messous wastewater treatment plant (WWTP) were tested. The classic jar test ...


    By IWA Publishing

  • Geotube Dewatering Technology Helps Arizona Chemical Dewatering Technology Helps Arizona Chemical Solve “Tight Space” Challenge - Case Study

    Arizona Chemical Company, a Division of International Paper, converts terpenes, generated by cooking wood pulp for making paper, into resins used to make adhesrves. The plant's process waste of inorganic compounds (magnesium hydroxide, crude tall oil and fatty acids) is sent to an equalization basin (EQ) for storage and settling. The supematantis discharged into Panama City's wastewater treatment ...

  • Quarry Dewatering Compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering ...


    By Greyline Instruments Inc.

  • Industry leading drilling fluid dewatering

    The drilling industry is regulated by a myriad of environmental regulations that protect our air, water, and land resources. As these regulations continue to evolve, so too must the technologies utilized by the drilling industry. Though lowering compliance costs is always a worthy initiative, incorporating technology that also enhances the drilling process by improving down-hole conditions and ...


    By Elgin Separation Solutions

  • Dewatering of Boiler Ash - Case Study

    Ten Gate develops and produces materials that function to increase performance, reduce costs, and deliver measurable results by working with our customers to provide advanced solutions. THE PROJECT The Wheelabrator Technology Group provides design/build and operation of trash-to-energy facilities. The Wheelabrator facility located in Lisbon, CT utilizes a storage tank for ...

  • 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 ...

  • New processes for the improvement of sludge digestion and sludge dewatering

    INTRODUCTIONThe examination of numerous sewage sludges from municipal wastewater treatment plants leads to the conclusion that on the one hand dewaterability of these sludges worsens and that on the other hand dewaterability of sludges becomes more and more important due to increasing disposal costs. Especially wastewater treatment plants with inflows from the food processing industry often face ...


    By Cambi Group AS

  • Effect of Microsludge on Anaerobic Digester Performance and Residuals Dewatering at La County’s JWPCP

    MicroSludge™ is a patented chemical and pressure pretreatment process that liquefies waste activated sludge (WAS) to increase both the rate and extent that it is degraded in a conventional mesophilic anaerobic digester (CMAD). The process uses chemical pretreatment to weaken cell membranes and a high-pressure homogenizer, or “celldisrupter”, to provide an enormous and sudden pressure change to ...

  • De Pere & Manitowic, WI - Dewatering / Filtering Drilling Sediments - Case Study

    TenCate develops and produces materials that function to increase performance, reduce costs and deliver measurable results by working with our customers to provide advanced solutions. THE CHALLENGE Lunda Construction was subcontracted by Michels Corporation to provide 35' diameter down-shafts to facilitate the installation of a pipeline between the Manitowoc River and the Fox ...

  • Real-time monitoring and forecasting of odor after dewatering in wastewater treatment

    A real-time odor monitoring system was developed to evaluate and predict odors levels of dewatered solids generated by the District of Columbia Water and Sewer Authority’s (DCWASA) advanced 370 mgd wastewater treatment plant (WWTP) in Washington, DC. Each year, DCWASA generates over 400,000 wet tons of biosolids and recycles these biosolids by applying them to over 20,000 acres of agricultural ...

  • Geotube Dewatering Technology Allows Highest Pumping Heights - Case Study

    Fabric Strength and Construction Provide Strength Needed For Extra Capacity, Faster Dewatering TenCate develops and produces materials that function to increase performance, reduce cost, and deliver measurable results by working with our customers to provide advanced solutions. Now, products from TenCate Geotube can provide even more flexibility and value. Thanks to developments ...

  • Dewatering of moist sediments and soils for application to RaPID Prep AND RaPID assays procedures

    BACKGROUND INFORMATION: High moisture content (>30% by weight) can significantly lower concentrations of analytes detected in the RaPID Prep soil methods. In these methods, water associated with a sample will increase the volume of the extraction solution (liquid phase) and decrease the amount of soil (solid phase) in a weighed sample. In some cases, water may also decrease the ...


  • For Light Industry, Geotube Dewatering Technology Provides An Effective Solution - Case Study

    For many industrial applications, dewatering is a necessary evil. It disrupts operations, adds cost, and requires complicated and expensive equipment. But this doesn't have to be the case. There's a much simpler, less expensive approach to the task. It's called Geotube dewatering technology, and it's been used in a broad range of industries. Geotube dewatering technology can be a temporary or ...

  • Dewatering Paper Mill Lagoon Sludge - Ancram, NY - Case Study

    Sludge from the secondary treatment system lagoon at the New York mill of Schweitzer-Mauduit International, Inc. had to be removed. Geotube technology with SmartFeed Chemical Conditioning System supporting technology was the most cost-effective and  efficient method  of containing  and dewatering the sludge. The dredging contractor removed 3,285 cubic yards of sludge from the ...

  • Geotube Dewatering Technology A Key Component In Hylebos Waterway Cleanup - Case Study

    The Hylebos Waterway was named after a 19th century priest who served parishes in Tacoma and Steliacoom, WA. For years, however, the name was associated with one of the largest Superfund sites in the nation. The Hylebos Waterway contains a toxic layer of sediment contaminated with PCBs, PAHs, arsenic, hexachlorobenzene, hexachloro-butadiene, and other organics and metals. The contamination comes ...

  • Improved dewatering of CEPT sludge by biogenic flocculant from Acidithiobacillus ferrooxidans

    Bioleaching using an iron-oxidizing bacterium, Acidithiobacillus ferrooxidans, and its biogenic flocculants was evaluated to improve the dewaterability of chemically enhanced primary treatment (CEPT) sewage sludge. CEPT sludge in flasks was inoculated with A. ferrooxidans culture, medium-free cells and the cell-free culture filtrate with and without the energy substance ...


    By IWA Publishing

  • Energy recovery from thermal treatment of dewatered sludge in wastewater treatment plants

    Sewage sludge is a by-product generated from municipal wastewater treatment (WWT) processes. This study examines the conversion of sludge via energy recovery from gasification/combustion for thermal treatment of dewatered sludge. The present analysis is based on a chemical equilibrium model of thermal conversion of previously dewatered sludge with moisture content of 60–80%. Prior to ...


    By IWA Publishing

  • Sustainable wastewater treatment chemicals in a dairy

    Problem/Definition Atana Ltd has been tasked in reducing sludge generation produced at the sites effluent plant by introducing a new chemical regime. This would bring considerable savings on their daily running costs; reduce the need for hazardous substances and prevent any corrosive issues through the removal of inorganic chemicals. The plant also has consent issues with FOG and ...


    By Atana Limited

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