wastewater corrosion Articles

  • Corrosion failure in deep wastewater tunnels: lessons and solutions

    Charleston Water System operates a deep inverted siphon tunnel system to collect and convey wastewater from the downtown peninsula across Charleston Harbor. This paper describes the considerations used in designing a replacement tunnel system for the original system constructed in the early ...

  • How to use Electrocoagulation for Effective removal of Phosphorus in Wastewater

    In this article, we will be discussing phosphorus, the effects of elevated phosphorus levels on an ecosystem, and how innovative electrocoagulation technology can be sustainably used for effective removal of phosphorus in wastewater & water sources. What is Phosphorus? Phosphorus is one of the most common nutrients on the planet. It is formed naturally in nature, and ...

  • Corrosion resistant FRP reduces maintenance issues for water and wastewater treatment and control

    At this Wastewater Treatment Plant in Glendale Heights, IL, an aluminum slide gate had to be forced open using a front-end loader and a chain after seizing in place due to inevitable corrosion. The corrosive bond was so severe that the chain snapped upon the first attempt. The water and wastewater treatment and control industry is a prime example of how constant exposure to toxic elements can and ...


    By Plasti-Fab, Inc.

  • Wastewater force main management – internal corrosion survey using inline methods

    In our first post about Wastewater Force Main Management, we looked at how preliminary analysis helps operators develop a plan for managing their system. After completing this process, operators can begin putting the plan into action with preliminary surveys on specific force mains. For those at WEFTEC, you can visit Pure ...

  • Not All Stainless Steel Resists Corrosion

    For Municipalities and Municipal Utilities Authorities struggling to deal with corrosion issues, knowing where to turn when faced with these challenges can be daunting. Logan Township Municipal Utilities Authority, of NJ was faced with such problems when it was discovered that a five year old stainless steel headworks tank at their wastewater treatment facility was experiencing extreme ...


    By Sauereisen Inc.

  • Wastewater Force Main Management – Internal Corrosion Survey using inline methods

    In our first post about Wastewater Force Main Management, we looked at how preliminary analysis helps operators develop a plan for managing their system. After completing this process, operators can begin putting the plan into action with preliminary surveys on specific force mains. For those at WEFTEC, you can visit Pure ...

  • Inhibition effect of phosphorus-based chemicals on corrosion of carbon steel in secondary-treated municipal wastewater

    Secondary-treated municipal wastewater (MWW) could supply a viable alternative water resource for cooling water systems. Inorganic salts in the concentrated cooling water pose a great challenge to corrosion control chemicals. In this study, the inhibition effect of 1-hydroxy ethylidene-1,1-diphosphonic acid (HEDP), trimethylene phosphonic acid (ATMP) and 2-phosphonobutane-1,2,4-tricarboxylic ...


    By IWA Publishing

  • Full-scale field trials identify sulfate discharge limits for municipal wastewater odor and corrosion control

    ABSTRACT The Massachusetts Water Resources Authority (MWRA) owns and operates one of the largest wastewater collection and treatment systems in the U.S. serving 45 member communities and operating the 1.2 billion gallon-per-day Deer Island Wastewater Treatment Plant in Boston Harbor. The MWRA has very few odor and corrosion problems so it was unusual when the MWRA encountered a high ...

  • Case histories of using tin technology to control corrosion in water systems

    Stannous chloride is an alternative corrosion control in aqueous systems. Stannous chloride’s effectiveness as a better corrosion inhibitor has been demonstrated in both municipal drinking water and industrial cooling water applications and its use has a reduced impact on rivers and streams. Orthophosphate and other phosphate compounds are the most common treatments for reducing corrosion in ...


    By AS Inc

  • Skimming Oily Wastewater

    As large generators of oily wastewater tighten effluent controls, the U.S. Environmental Protection Agency (EPA) is targeting smaller generators. Some of the firms receiving their attention are smaller manufacturing plants, automotive garages, mobile equipment service shops and truck farms. Many of these firms do not have access to a sanitary sewer system that will accept oily wastewater. Because ...


    By Abanaki Corporation

  • Struvite Formation & Struvite Wastewater Treatment

    The three chemical components for Struvite formation are magnesium, ammonia and phosphorus, also known as MAP for short. Struvite’s chemical formula is NH4MgPO4·6H2O. WWTP managers have used a number of different products and techniques for Struvite removal, and to prevent Struvite formation. Most text books on Struvite control talk about the use of ferric chloride (FeCl3) to control ...

  • Wastewater solutions for a hospital in Libya

    Continuing the trend of significant growth in Libya for WPL Ltd and El Zulal, the most recent development has been to provide wastewater treatment solutions for a hospital near Ubari. These facilities were provided as part of a co-operation project between El Zulal and the Libyan Government. El Zulal are the local expert distributors and installers for WPL's wastewater treatment solutions across ...


    By WPL Ltd

  • 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 ...

  • Municipal Wastewater Pump Station Design Problems and Solutions

    The growth of the Northern Virginia Area around Washington D.C. has resulted in the requirement for numerous new wastewater pumping stations and the upgrade and expansion of existing pump stations. This paper presents practical problems and solutions associated with the following pump station design issues: 1.) Concrete Corrosion Protection, 2.) Corrosion Resistant Materials, 3.) Pump Protection ...

  • Utilization of artificial recharged effluent as makeup water for industrial cooling system: corrosion and scaling

    The secondary effluent from wastewater treatment plants was reused for industrial cooling water after pre-treatment with a laboratory-scale soil aquifer treatment (SAT) system. Up to a 95.3% removal efficiency for suspended solids (SS), 51.4% for chemical oxygen demand (COD), 32.1% for Cl− and 30.0% SO42− were observed for the recharged secondary effluent after the SAT ...


    By IWA Publishing

  • Case study - Tin plating wastewater treatment

    The Client The Client is a steel industry based in the Middle East producing tinplates for food cans. Tinplates provide excellent corrosion resistance and are produced starting from cast iron by several steps. Cast iron is first rolled to get thickness in the range of 0.2 – 0.3 mm than it is electroplated from aqueous acid solutions at a temperature around 60°C. The plating bath ...


    By EVALED-Evaporator

  • Water and Wastewater Treatment Chemicals: World Market Report

    Provides continually updated analyses and forecasts for 11 product categories including activated carbon, chelates corrosion inhibitors, defoamers, ion exchange resins, inorganic flocculants, organic flocculants, oxidizers and biocides, pH adjustors, and scale inhibitors in 80 ...


    By The McIlvaine Company

  • Industrial wastewater reuse: CEMEX UK - Case Study

    CEMEX is one of the world's leading cement producers and suppliers of building materials. In order to limit their manufacturing footprint in terms of process water usage, CEMEX UK sourced their water from the final settlement lagoons of their local wastewater treatment plant (Anglian Water). atg UV Technology was approached by CEMEX UK to supply a containerized UV wastewater treatment plant to ...


    By atg UV Technology

  • Case study - Wastewater from drugs production

    The Client In the heart of Germany, the local branch of a pharmaceutical multinational company produces an anaesthetic containing 2,6-Diisopropilphenol (Active Ingredient A), and an antiviral (Active Ingredient B) made up of sodium chloride, citric acid and sodium acid phosphate. Traces of these products are present in the wastewater coming from the cleaning process of the ...


    By EVALED-Evaporator

  • Heat recovery from wastewater

    Heat recovery from gray water is particularly important in water-intensive industries such as pulp and paper plants, dairies and breweries. Rather than flushing used water down the drain, consider whether a heat exchanging system can help you put that energy to work in your process again. Most plant operators arc aware of the need to save money and reduce the environmental impact of their plant ...


    By DDI Heat Exchangers Inc.

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