clarifier equipment Articles

  • Clarifier maintenance

    Clarifiers are expensive, to buy or repair, and their downtime can be costly in fines imposed by regulatory agencies and in community ill will. Regular maintenance, an annual inspection of the mechanism and an occasional touchup of the paint or coating system are simple and inexpensive proactive steps that will usually prevent most problems. Three components of all clarifiers require maintenance: ...


    By WesTech Engineering, Inc.

  • EPA clarifies position on ion-generating equipment

    Certain washing machine manufacturers probably didn't think they needed to register their products as pesticides when designing and making them. However, this is exactly what they'll be required to do under 72 Fed. Reg. 54039, which the U.S. Environmental Protection Agency (EPA) clarified on September 21. Washing machines using silver electrodes to produce silver ions to kill germs are considered ...


    By Acta Group

  • Upgrading Pre-Existing DAF Clarifiers

    Whether a Mill is pursuing a facility wide directive to reduce water consumption or simply looking for better performance from a presently installed DAF clarifier, the advancements discussed in this overview offer proven techniques to optimize existing DAF system operations. Significant operational cost reductions can be achieved with DAF System Upgrades. In addition, increasing DAF performance ...


    By World Water Works, Inc.

  • Clarifiers-No, Filtration-Yes: A Case Study

    Problem Twenty miles southeast of Coos Bay, Oregon situated at the conjunction of the North and South Forks of the Coquille River lays the town of Myrtle Point. Just five years ago this community of 2670 residents was facing a large potable water problem with an even larger price tag. The town feeds its water treatment plant from the North Fork Coquille River. Prior to the 1990s the water ...

  • Tax Credit Tips For Biogas Projects

    With the end of 2016 in plain view, anaerobic digestion (AD) projects in the development phase should examine what has to happen by December 31 in order to tap into available federal tax credits. Under current law, Section 45 of the federal tax code makes AD projects eligible for a Production Tax Credit (PTC), which can be converted into an Investment Tax Credit (ITC), if the projects are used to ...


    By BioCycle Magazine

  • 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.

  • Case study - Algae control in SAB Miller Clarifier

    Several LG Sonic e-line devices were installed in the SAB Miller Clarifier #1 in Tocancipa Brewery, Colombia in order to control filamentous algae. The LG Sonic e-line devices were installed in the summer of 2012.   The Challenge: Control Algae and Increase Process Efficiency In the summer of 2012, SAB Miller, Colombia contacted LG Sonic in order to provide a solution ...


    By LG Sonic

  • Replacement of 130 ft Secondary Clarifiers at a 25 MGD wastewater treatment facility

    Challenge A municipal WWTP found that (2) of their secondary clarifiers were too rusted and corroded to properly function. A traditional clarifier refurbishment consisting of sandblasting and painting was not a viable option because one of the clarifier rake arms had recently broken due to its poor condition. The plant engineers decided that a clarifier rebuild was necessary to ensure ...

  • 50 GPM Parallel Plate Clarifier for raw water treatment at a chemical manufacturing plant

    Challenge A chemical manufacturing company needed to clarify surface water that was being drawn from a local creek for use as a cooling agent in their manufacturing process. The existing system was 30-years old, corroded, and not very adept at handling solids after separation from the water. Space requirements were a limiting factor in the installation. ...

  • Simple Shear of an Undisturbed Soft Marine Clay in NGI and Torsional Shear Equipment

    A series of undrained, simple shear tests were performed on undisturbed, soft, marine clay from the continental slope of Israel in a direct simple shear device (NGI) and in a new torsional shear apparatus. The new apparatus is described, and the problematics of simple shear testing in both devices are discussed. Most previous torsional shear testing on clays reported in the literature has been ...


    By ASTM International

  • Third of three parts: how to write municipal mobile equipment specifications in the new decade

    When faced with the responsibility of preparing mobile equipment specifications for your city, county, agency or municipality, do not stress, take a deep breath and remember what we covered in these series of articles. Although you may have had little or no formal training in writing these specifications or performing mobile equipment market research, I hope these guidelines have helped you on ...


    By Waste Advantage Magazine

  • Oily Wastewater Processing Facility Wastewater Treatment Case Study

    Impressive Oil Water Separation This is the result of our Floccin 1105 product treating a sample from an oily wastewater treatment facility. As you can see, the Floccin 1105 was very effective at clarifying the waste as well as capturing all of the oil. These results were achieved with no pH adjustment and minimal Floccin addition (~ 1g/1000ml). The client is going to purchase and ...


    By Integrated Engineers Inc.

  • Wastewater-Primary Treatment

    Primary Treatment is defined as a wastewater treatment process that takes place in a rectangular or circular tank and allows those substances in wastewater that readily settle or float to be separated from the water being treated. This process achieves solids separation. The solids readily available to settle to achieve sedimentation will do so in a settling tank referred as a clarifier. On the ...

  • ENEL power, italy – fusina project – ZLD plant for FGD wastewater treatment

    The Facility The Fusina Power Plant is equipped with four coal-fired units with a total capacity of 975 MW capacity (1 x 165 MW + 1 x 170 MW + 2 x 320 MW). The Environmental Refurbishment (Flue Gas Desulpharization, (FGD)) project includes a new DeSOx system for common for units #1 & 2; two DeNOx systems, one each for unit #1 & 2. Units #3 & 4 are already equipped with DeSOx ...

  • New process for Reusing produced wastewater

    Abstract: In November 2002, a new facility at the Liaohe Oilfield in Liaoning Province, China was commissioned to treat 20,000 m3/day of produced wastewater. The aim of the process is to provide water quality which is suitable as feed water for the high pressure, once-through steam generators. The performance during the first 8 months of operation has been demonstrated. Due to the unique ...


    By Eco-Tec Inc.

  • Optimum Design of Your Center Well: Use of a CFD Model to Understand the Balance Between Flocculation and Improved Hydrodynamics

    The use of center wells (CWs) in circular secondary settling tanks (SST) has become a common practice. According to Parker et al. (1996) the main purpose of the CW is to promote the aggregation of remaining dispersed particles into settleable flocs, i.e., to promote the flocculation process inside the settling tank. Parker et al. (1996) and Parker and Stenquist (1986) showed strong evidence that, ...

  • Caustic Recovery Using Membrane Filtration

    Abstract Food and beverage processors that use dilute caustic solutions for cleaning process equipment have shown increased interest in recovering the used caustic. The primary reason is that the price of caustic has increased significantly in the past year or so. Membrane filtration technology can be used to remove suspended solids (clarify with microfiltration) and/or dissolved ...


    By GEA Filtration

  • Research on mass transfer columns: passe?

    Since university research on mass transfer columns has decreased significantly in recent years, it is discussed whether the current knowledge of mass transfer technology for trays, packing materials, and column internals is sufficient to design energy- and cost-efficient systems. Points of view are described that have not yet been clarified from an industrial position and should play an important ...


    By Raschig USA Inc.

  • Advanced algae technology: The use of Ultra sonic technology for control of algae growth in an open balance tank

    Abstract One of the many challenges faced by Wastewater Treatment Plants (WWTPs) is the control of algae blooms. High algae concentrations create problems for process performance and increase operating expenditure for cleaning and maintenance activities. Algae blooms can contribute to fooling of filtration equipment aa well as foaming events on clarifiers and settling tanks. High ...


    By LG Sonic

  • Public Meeting Announced To Discuss Modernizing the Regulatory System For Biotechnology Products Memorandum

    On October 16, 2015, the U.S. Food and Drug Administration (FDA), along with the Office of Science and Technology Policy (OSTP), the U.S. Environmental Protection Agency (EPA), and the U.S. Department of Agriculture (USDA), announced in the Federal Register a public meeting to be held on October 30, 2015, to discuss ...


    By Bergeson & Campbell, P.C.

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