sanitary engineering Articles

  • Dam Inspection: A Day at Still Creek Dam

    We’ve been busy lately visiting various municipalities, police forces, aquaculture sites, and water treatment plants showcasing both our portable ROV systems and our new product line, the DT340 Pipe Crawler. One project in particular, took place at the Still Creek Dam in Tamaqua, PA. Cody and Sam packed up the crawler and headed down ...


    By Deep Trekker Inc.

  • Biological nutrient removal case study

    The Challenge Chester Engineers was contracted by the Mountaintop Area Joint Sanitary Authority to design an upgrade to the existing treatment plant to address new Chesapeake Bay nutrient requirements and to eliminate the use of chlorine for ammonia nitrogen removal and disinfection to address trihalomethane permit violations.  Chester was also required to complete the design to ...


    By Chester Engineers

  • City of Warm Springs, Georgia - Case Study

    The City of Warm Springs is a small community of approximately 500 residents located in central Georgia. In 2010, water testing found a radium level between 8 - 11 pCi/L and a Gross Alpha level of 25 pCi/L, both above state and USEPA drinking water regulations of 5 pCi/L and 15 pCi/L respectively. Engineering Management Inc (EMI) conducted a pilot test in late 2010 to test a manganese dioxide ...

  • Bayview Community - Wastewater Treatment System

    Formed just after the Civil War, “Bayview” is a 300 year‐old predominately African American community. The residents of the community organized and created the Bayview Citizens for Social Justice In 1998. The group formed partnerships to improve the lives of the community by installing a water and wastewater treatment system. Funding came from multiple Federal. State and County ...


    By BIOMICROBICS, Inc.

  • Spiral-Wound Sepralators: The Range of Options

    Introduction Spiral-wound membrane elements (sepralators) were used mainly for basic water purification until the mid to late 1970s, when broader uses began to receive attention. New applications often required special consideration such as; sanitary construction for the dairy industry, high temperature for food processes and waste streams, and high pressure capability for desalination. In ...


  • Scanning proposed borehole locations for Utilities case study

    Environmental and engineering firms often are tasked with performing soil borings for monitor well installation as part of a Phase II Environmental Site Assessment. This task becomes more challenging when the borings are to be installed in gasoline stations, right of ways or other areas where there are numerous underground utilities that are either unmarked or not properly located. GeoView can ...


    By GeoView, Inc.

  • Robert Bosch GmbH, Germany - case study

    Overview Bosch is a multinational engineering and manufacturing firm specializing in electronics, automotive components, power tools, security systems and home appliances. Water System Challenges There are two main water supply intakes into eleven buildings of the Bosch facility in , with annual consumption of about 40,000 m3. Previous attempts were made ...

  • Dynamic Modeling of Wet Weather Operations at Blue Plains Advanced Wastewater Treatment Plant

    ABSTRACTThe District of Columbia’s Advanced Wastewater Treatment Plant at Blue Plains is a 370-mgd facility that provides wastewater treatment for over 2 million people in Washington, DC and surrounding jurisdictions in Maryland and Virginia. Blue Plains receives combined sewer flows that originate in the District’s combined sewer system. Two separate activated sludge processes provide removal of ...

  • State of the art treatment for Arsenic, color, and Hydrogen Sulfide - Case Study

    New Arsenic Regulations How meaningful to the average water customer are µg/l or parts per billion? Not very. How about the word “arsenic”? That will ring some bells as the mystery novel poison-of-choice. But with new, lower EPA arsenic standard of 10 ppb that went into effect Jan. 16, cities with ...


    By Filtronics, Incorporated

  • Determination of Fecal Coliform Loading and its Impact on River Water Quality for TMDL Development

    ABSTRACTThe reach of Red River of the North flowing through the Cities of Fargo, ND and Moorhead, MN has been impaired due to the fecal coliform. Analyses of water quality samples and rainfall data showed that high coliform concentration in the river was related to rain events, and runoffs from the urban areas are major sources of fecal coliform contamination. To determine the fecal coliform ...

  • Planning for Success: Why Your Choice of Screening and Sifting Equipment Manufacturer Matters

    When making any major purchase for your business, your choice of a screening equipment manufacturer is critical. This is particularly true of specialized machinery such as industrial sifting machines. Though you know your business and its needs, there’s a good chance you don’t have the technical background required to make a truly informed purchase. When a manufacturer is ...


    By VibraScreener Inc.

  • 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.

  • Rotomite application serving municipal WWTP, Decatur, Arkansas-case study

    As reported in WaterWorld, Serving the Municipal Water/Wastewater Industry In 1996, the Town of Decaur, Ark., purchased a self-propelled Rotomite 180-P dredging system as part of a new biosolids management program designed to reduce the cost of sludge disposal and to increase solids detention time in-plant. While less than 1,000 people live in Decatur, the town's wastewater treatment plant ...


    By SRS Crisafulli, Inc.

  • Searchmont ski resort gets a wastewater system facelift - Canadian ski resort needed a replacement sewage system that would accommodate more people.

    Untitled Document One of the premiere ski resorts in Midwestern Canada, Searchmont has diverse terrain that offers challenging skiing and snowboarding. With the popularity of the resort ...


    By Baum Publications Ltd.

  • Planning for the Unthinkable Risk Assessment and Emergency Response Planning for Catastrophic Events District of Columbia Water and Sewer Authority (DC WASA)

    ABSTRACTManager’s decision capabilities can be improved through a better understanding of a system’s inter-dependability. Communication and planning during non-emergency periods enable managers and engineers to review the impacts that would be expected during several scenarios, and what system improvements could be made to minimize those impacts. The plan that DC WASA developed helped managers ...

  • New Energy BFP case study

    Clarification and Dewatering Control Industrial TSS The New Energy Corporation facility in South Bend IN produces 380,000 M3 per year (100 million gallons per year) of ethanol from corn feedstock. It also produces about 272,000 tonnes per year (300,000 tons per year) of carbon dioxide and 299,000 tonnes per year (330,000 tons per year) of distillers' dried grains with solubles (DDGS) ...


    By Komline-Sanderson

  • Thermal Screw Conveyors: Heated or Chilled

    Industrial screw conveyors, also known as auger conveyors, are a widely-used method of bulk conveyance in many industries. These industries include food and chemical processing, water treatment plants, biofuel production, agriculture, and more. Besides conveyance, there are added benefits industrial screw conveyors can bring to its users. One of these benefits is the ...

  • Heavy Industry Plant Wastewater Treatment, Recovery ang Recycle Using Three Membrane Configurations in Combination with Aerobic Treatment

    ABSTRACTIn the late 1990’s a major diesel engine manufacturing plant began evaluation of wastewater treatment technologies that would improve the quality of wastewater discharge, would produce treated effluent of reduced oil and grease, BOD and COD load suitable as feed to their sanitary waste biological treatment plant, and eliminate the costs and risks associated ...

  • Researchers investigate wastewater reuse in Namibian town

    A multi-year project in Namibia, headed by scientists from the Technische Universität Darmstadt, is looking for the best way to upgrade wastewater stabilization pond systems so the water can be reused to irrigate animal fodder crops. Despite its simple aim, the project has the lengthy name of “EPoNa-upgrading wastewater ponds to generate irrigation water, using the Cuvelai-Etosha ...


    By Fluence Corporation

  • 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

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