clarifier cover 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.

  • Wastewater Odors Go Under Cover

    Problem: A new residential golfing community wanted to prevent odor emissions from the local wastewater treatment plant from affecting the lifestyle of its residents. Solution: Flat structural-fabric covers were installed over the treatment plant's aeration tanks and primary clarifiers. ...


  • Cover-all building ideal for waste water treatment solution

    Location: Bartlett, IL, USAApplication: Waste Water Treatment PlantBuilding Series: Legend®Building Size: (4) 62' w x 90' l (18.8m x 27.4m) In 2003, the Village of Bartlett in Illinois purchased four Cover-All® Legend buildings to cover their aerobic digesters at their waste water treatment plant.  Located just 40 miles from Chicago, the facility handles the waste water for 26,000 people ...


  • Community`s Complaints about Odor Addressed with GTI Cover System

    After years of operating successfully in the community, the City of Bridgeport’s WPCA developed an odor problem at its East Side Wastewater Treatment Plant. It was an exceptionally hot summer, and the plant’s expansion/refurbishment project had taken one-third of the treatment plant facilities out of ser vice. Equipment that was still in ser vice was old and ...

  • CST Covers Replaces Fiberglass with Aluminum Domes case study

    Twin 65’ diameter aluminum domes Ironwood, MI 2000 CST Covers recently completed construction of a second pair of wastewater tank covers at the Gogebic-Iron Wastewater Treatment Facility in Ironwood, Michigan. This most recent contract consisted of twin 65' diameter Aluminum Domes for the facility's primary clarifiers. Previously, CST Covers replaced tank covers following a ...


    By CST Industries Inc

  • Case study - Primary settling tanks covering to prevent odors emission

    Primary settling tanks covering to prevent odors emission at the Cambrils Waste Water Treatment Plant The Catalan Water Agency (ACA) commissioned a project aiming to minimize odor emission from a Wastewater Treatment Plant (WWTP) located in Cambrils (Tarragona) that suffered from bothersome smells coming from the primary settling tanks. Occasionally, ...


    By Bioconservacion SA

  • Relationship between indoor environmental quality and building envelopes covered by plants: a review of the literature

    It is not clear whether the benefits of improving outdoor environmental conditions inherent in urban plants apply to building indoor environment when plants are integrated on building envelopes. This paper reviews published research to date to clarify whether building envelopes covered by plants have effects on indoor environmental quality, and building occupants' health and comfort. The review ...


    By Inderscience Publishers

  • Increased plant efficiency, City of Checotah, Oklahoma

    The City of Checotah, Oklahoma was experiencing excessive solids, foam and grease in their 0.5 MGD extended aeration activated sludge treatment facility. With a daily average flow of 0.25 million gallons per day, the plant had tremendous amounts of foam and grease in the aeration basin with the sidewalls caked with sludge. The centerwells of the clarifier were filled with foam and grease. The ...


    By Byo-Gon, Inc.

  • Controlling Wastewater Treatment Plant Odors in a Resort Community

    As a growing resort community, Newport, OR, wanted to find a way to minimize odors from its downtown wastewater treatment plant. The city installed structural-fabric covers on its secondary clarifiers as part of the solution. Download the full article in pdf format (103 ...


  • Business growth models: review of past 60 years

    This study reviews growth configurations research published over the past 60 years. Numerous configuration models seek to clarify the management priorities in the early growth of companies. However, an extensive review is missing from the literature and the variability of attributes among the models leads to confusion. The study identifies 90 configuration studies, describes the common patterns ...


    By Inderscience Publishers

  • Activated Sludge Diffusion Provides Cost Effective Biological Odor Control at Two Texas Wastewater Treatment Facilities

    ABSTRACTDuring recent expansions of the Rowlett Creek Regional WWTP in Plano, Texas and the Wilson Creek Regional WWTP in Lucas, Texas, activated sludge diffusion (ASD) biological odor control systems were installed to treat hydrogen sulfide (H2S) and other gaseous compounds. The ASD systems treat foul air collected from various sources, including headworks and primary distribution structures, ...

  • Comprehensive Odor Emissions Study Hall Street Wastewater Treatment Plant Concord, New Hampshire

    ABSTRACTThe operation of the Hall Street wastewater treatment plant (WWTP) in Concord, NH has caused the emission of objectionable odors from various liquid and solids treatment processes resulting in periodic odor complaints from its neighbors. The City of Concord retained Fay, Spofford & Thorndike (FST) to conduct a comprehensive odor emissions study at the Hall Street WWTP and to recommend ...

  • Odor Control System Addresses Community’s Complaints

    The Customer: The Water Pollution Control Authority (WPCA) of the City of Bridgeport, Connecticut, operates two wastewater treatment facilities and maintains the city’s sewer system. The Customer’s Needs: After years of operating successfully in the community, the City of Bridgeport’s WPCA developed an odor problem at its East Side ...

  • Odor control system addresses community’s complaints - case study

    The Customer: The Water Pollution Control Authority (WPCA) of the City of Bridgeport, Connecticut, operates two wastewater treatment facilities and maintains the city’s sewer system. The Customer’s Needs: After years of operating successfully in the community, the City of Bridgeport’s WPCA developed an odor problem at its East ...

  • New EU industrial emissions legislation

    Proposal for the revision of industrial emissions legislation in the EU (Questions & Answers) The Commission's proposal focuses on four key problems identified during a two-year review process when data was collected through an extensive programme with ten studies and continuous consultation with stakeholders. Firstly, the Commission proposes to overhaul seven existing pieces of legislation on ...

  • MT & Gravity Survey in Delvina, Albania - Case Study

    MT & Gravity Survey In November 2012, SeismoTech s.ltd. was awarded a Gravity and Magnetotelluric survey in the Delvina Area (SW Albania), by Stream Oil & Gas Ltd. The scope of this project was to enrich with additional geophysical information the Delvina Gas field area, in order to conclude on optimum locations for well-drilling. The Delvina Gravity and ...


    By SeismoTech Ltd

  • Application of dynamic threshold in sea and lake ice mapping and monitoring

    Ice detection and monitoring algorithms using visible and infrared images are generally founded on thresholds-based approaches. Classification of features over ice covered sea requires a series of reliable thresholds. The change in surface conditions throughout the season affects these thresholds and makes their adjustment necessary. This study proposes an operational method based on a set of ...


    By Inderscience Publishers

  • Oil Storage Requirements of the SPCC Regulations

    ABSTRACTThe SPCC regulations entail numerous requirements for the storage of oil. The intent of this paper is to summarize several of the complex requirements associated with oil storage at a facility subject to the SPCC regulations. INTRODUCTIONThe Spill Prevention, Control, and Countermeasure (SPCC) regulations are far reaching requirements promulgated by the ...

  • Atmospheric dispersion modelling for regulatory purposes in the United Kingdom

    Short-range atmospheric dispersion models are used to assess the environmental impact of airborne pollutants from industrial plants. The results are of interest to a range of specialist and non-specialist groups, including regulators, operators, environmental organisations, and local residents. In order that these groups can be well-informed, it is important to develop clear and consistent ...


    By Inderscience Publishers

  • Landfill leachate treatment

    Landfills are categorized by regulations in three types: industrial, municipal, and hazardous. Individual landfills may be further differentiated by the types of waste which they accept. All landfills are required to be capped, usually occurring at the end of each day. The cap is typically 6-8” of soil. The cap reduces odor and loss due to wind. At the closing of the landfill, a permanent ...


    By WesTech Engineering, Inc.

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