construction site water quality Articles

  • Chemically Enhanced Primary Treatment for a Large Water Reclamation Facility on a Constricted Site - Considerations for Design, Start-Up, and Operation

    To provide greater treatment capacity and to meet new water quality criteria for discharge to the Chattahoochee River, Cobb County Water System (CCWS) construction a new 60 million gallon per day (mgd) liquid treatment facility at the R.L. Sutton Water Reclamation Facility (Sutton WRF). A restricted site (25 acres) combined with an effluent limit on total phosphorus of 0.5 mg/L resulted in the ...

  • Construction of a road tunnel on the Autobahn A38 case study

    Umbrella lining with Carbfol Today's modern traffic tunnels are increasingly being planned with a projected functionality for over 100 years – despite difficult geological and engineering conditions. The overriding objective of tunnel construction is the protection against the effects of groundwater and penetrating water. The local conditions at the highway tunnel construction site on ...


    By NAUE GmbH & Co.KG

  • Baseline groundwater quality in unconventional oil and gas fields

    In recent years, expansion of unconventional oil and gas production has prompted significant interest in potential impacts on drinking water resources. In many cases, water quality investigations rely on access to landowner water wells to develop baseline data prior to drilling; respond to spills, complaints, or incidents; or evaluate potential impacts due to drilling, completion, hydraulic ...


    By IWA Publishing

  • Post Construction Cleanup and Restoration with Gas Pressure Washers

    After the completion of construction, the building or structure has to be thoroughly cleaned, removing excess grime and dust from walls, floors, sidewalks, and similar structures. One way to achieve fast and efficient cleaning is through the use of a powerful gas pressure washer. You may use an electric pressure washer as well, but most contractors use a gas pressure washer as these machines do ...


    By Daimer Industries Inc.

  • Best soil management practices for Washington building sites

    The Washington Organic Recycling Council (WORC), which started the Soils for Salmon project in 1999, launched a new website, and a “Building Soil” outreach campaign to change standard building practices. The mission is to help builders and developers preserve and restore native soil on building sites, using compost. These soil “best management practices” (BMPs) will soon be required by local ...


    By BioCycle Magazine

  • Prevent hospital acquired infections during construction projects

    The issue of hospital acquired infections is a serious problem. According to several sources, three to four million hospital-acquired infections occur annually, with up to 80,000 fatalities. The costs of these infections are estimated to be between $4 billion and $5 billion per year (Air-Treatment Systems for Controlling Hospital acquired Infections, HPAC Engineering, April 2, 2008).Healthcare ...

  • Construction materials production. Application of the ABC-100 unit

    Expanded clay industry In the process of expanded clay production the argillous raw material homogenizes and mills in the drilling mud mixers and rollers. But these equipments not ensure qualitative desintegration. As result we obtain the expanded clay of low quality. Insufficiently desintegration and homogenizing of raw materials lead to the result when even 3% of carbonate ...


    By GlobeCore GmbH

  • In-situ quality monitoring station in Lower Saxony

    Background 'Duemmer' is a shallow lake in the south-west of Lower Saxony; through the lake flows the river 'Hunte'. The catchment area spans 426 km2. With a surface of 12.4 km2 and an average depth of 1.1 m there is a water volume of approx. 14 million m3. Large parts of the lakeside are a nature reserve and the lake is a popular local recreation area. The lake suffers from strong nutrient ...


    By OTT HydroMet

  • Decentralized Water Reuse

    Water is an integral part of our society today. This vital resource is used in the operations of many industrial processes, human consumption, and for food production to name just a few. The increasing demands for water for agricultural, drinking and industrial processes has put significant strain on global fresh water supplies as the world's population continues to grow. In many parts of the ...

  • Water Reuse Terminology

    All water on Earth is used and reused, over and over, in an elegant water cycle. Water reuse occurs in various ways on a daily basis. It happens when a community’s treated wastewater is discharged into rivers or other water bodies. If you live in a community downstream of another, chances are you are reusing water from an upstream town. Scientifically proven advances in water technology ...


    By WateReuse

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

  • American Industrial helps Knife River construction with Cornell Technology

    American Industrial of Livermore California emphasizes first-class customer service, in acquiring and retaining pump system customers.  For the last 8 years, they have brought that customer service focus to their relationship with Knife River Construction. Knife River, operating an aggregate sand/gravel plant in Marysville California, is the ninth largest aggregate producer and the sixth ...


    By Cornell Pump Company

  • Saudi Arabia’s National Water Company Increases Water Storage

    In 2012 the National Water Company (NWC) of Saudi Arabia undertook the enormous project of developing 43 wells and 46 water purification stations in 27 separate locations to provide sustainable potable water systems near Riyadh. To accomplish this task in a short six-month timeframe, contractors around the world were brought in to provide the necessary pieces of infrastructure required to build ...


    By CST Industries Inc

  • French vertical-flow constructed wetland design: adaptations for tropical climates

    The French Outermost Regions are under tropical climate yet still have to comply with both French and EU regulations. French vertical-flow constructed wetland systems appear well adapted to the technical specifics of these regions but their adaptation to tropical climate requires new design guidelines to be defined (area needed, number of filters, type of plants, material to be used, etc.). A ...


    By IWA Publishing

  • Ground Zero Air Quality Has A Long Way To Go! A Summary of Air Quality Testing in Surrounding Buildings

    There are still a wide range of concerns about air quality in the vicinity of Ground Zero. Many commercial and residential spaces have yet to be re-occupied. In only a few cases has any sort of inspection or testing been done to determine if they are safe to occupy. The greatest concerns are asbestos and the very irritating concrete dust that spread throughout lower Manhattan during the collapse ...


    By Atlantic Environmental, Inc.

  • Water system master plan

    Client: City of Fort Smith, Ark. Completion Date: 2002 Services Provided Water supply/delivery Hydraulic modeling and design Water quality analyses Water supply hydrology Flood hydrology 3-D project rendering Physical hydraulic models Spillway hydraulics ...


    By Burns & McDonnell

  • Water Use and Reuse in Manufacturing

    Efficiency advances in wastewater reuse and desalination are bringing on-site treatment within reach of more manufacturing operations Three factors — climate, overuse, and pollution — are now propelling the manufacturing industry toward a sea change in its water use. Demand for fresh water is high and increasing. The U.S. Census Bureau has estimated that the U.S.  ...


    By Fluence Corporation

  • Site Vulnerability Assessments for Facilities That Use, Store, or Transport Chemicals

    In response to pressing issues facing the new Department of Homeland Security, over 15,000 chemical and industrial plants may have to evaluate their vulnerability to terrorist attack and improve countermeasures at their facilities. Federal lawmakers are considering two bills requiring facilities to submit site security plans: the Chemical Security Act (Senate Bill S. 157, reintroduced in January, ...


    By AECOM

  • Water for Southern California: water resources development at the close of the century.

    INTRODUCTION In 1999, California observes the 150th year of the Gold Rush. Rather than an isolated historical event, it could be argued that the California Gold Rush never really ended, but rather that it was the first chapter in a mass migration unlike any other in history, both in scale and duration. At the founding of the Missions by Franciscan friars, Alta California was almost an ...


    By Hargis + Associates Inc

  • Reliability of on-site greywater treatment systems in Mediterranean and arid environments – a case study

    On-site greywater (GW) treatment and reuse is gaining popularity. However, a main point of concern is that inadequate treatment of such water may lead to negative environmental and health effects. Maintenance of single-family home GW systems is usually performed by home owners with limited professional support. Therefore, unless GW systems are reliable, environmental and public health might be ...


    By IWA Publishing

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