Wet Wells Articles

  • Seven safety tips for working in winter

    When discussing workplace hazards that can creep up during the winter months, driving in treacherous conditions is often the first thing people mention but there are several other winter hazards that supervisors need to address with their workers. Here are seven things to consider: Cold stress: workers are at risk for hypothermia and frostbite while working ...


    By SafetySmart

  • Good Advice for Winter Travel

    No Nonsense Safety during the Season of Slip-ups As many will be aware from unfortunate experience and bad news, Winter can be a very dangerous time for roads and footpaths. A multitude of risks threaten life and limb; aside from snow and ice, falling leaves mixed with wet weather are a recipe for slippery surfaces, while damp mud is another serious problem exacerbated by tractor ...


    By SHEilds Ltd

  • ‘Smart’ flood alleviation system protects Portsmouth

    In late 2014, Southern Water completed a major project to reduce the risk of sewer flooding in parts of Portsmouth and Southsea. Substantial works were undertaken to divert runoff and tidal ingress, and a ‘smart’ hydrometeorological monitoring system was installed to enable prompt diversion of excess water during periods of high rainfall. Sewer level monitoring is undertaken in ...


    By The OTT Hydromet Group

  • How to Assess Fall Hazards

    Fall hazards are an ongoing concern in most workplaces and include both falls from heights as well as falls from the same level. Slips, trip and falls from both categories consistently rank among the top causes of both disabling injuries and deaths in all types of workplaces, from construction sites, to manufacturing operations to warehouses to offices. In fact, the only other category of ...


    By SafetySmart

  • Discover the Fascinating World of Aerospace: ILA Trade Show in Berlin

    The ILA has developed over time to become a leading event for the aerospace industry. This year, it will take place at the Berlin ExpoCenter Airport from 1st to 4th June 2016 once again providing an important meeting place for decision makers from politics, aviation business, science and research. We are represented at the shared booth of industry ...

  • Wastewater Level Measurement Techniques

    Level monitoring and control is a fundamental requirement in any wastewater treatment process. You will find level instrumentation installed at even the simplest treatment plants for pump control, chemical storage tanks and process level controls or alarms. Operators have only limited or emergency control over treatment plant influent, so level controls and instrumentation play an important role ...


    By Greyline Instruments Inc.

  • Deep soil mixing shoring system to construct a 60 MGD, 40 foot deep wastewater pumping station

    The City of San Mateo, CA operates three wastewater pumping stations on a 80' wide lot located in a residential area near San Francisco Bay. The age of the stations range from 12 to 50 years, the stations have difficulty pumping peak wet weather flows, and have structural and maintenance problems. For these reasons, a new station was proposed to replace the existing stations. The site layout is ...


    By Geo-Con, Inc.

  • An artificial intelligence approach for optimizing pumping in sewer systems

    This paper presents details of a fuzzy logic system developed for the control of sewer pumping stations for energy costs savings. This is part of an ongoing collaborative project between Anglian Water and the University of Sheffield. The model rules and operation are developed for one representative pumping station in order to enable the identification of potential benefits and inhibitors to ...


    By IWA Publishing

  • The Bactaerator - the natural sump solution case study

    Cleveland Biotech Ltd, market leaders in the field of applied environmental biotechnology, have developed another market leading application system – The Bactaerator. Sumps, wet wells and pumping stations provide continual problems to all those responsible with managing and maintaining them, from pubs and supermarkets to drainage contractors and water companies. The problem most commonly ...


    By Cleveland Biotech Ltd.

  • Municipal waste water treatment plant case study

    A municipal WWTP in the North of England was experiencing significant problems with accumulations of FOG in the Wetwell at the head of the treatment plant. The FOG would form a solid cap over the well several feet thick. This put considerable strain on the pumping gear, interrupted the performance of the float switches and required regular manual intervention from the staff. High costs were also ...


    By Cleveland Biotech Ltd.

  • THE BACTAERATOR™ - for odour and blockage free pumping stations

    Cleveland Biotech Ltd, market leaders in the field of applied environmental biotechnology, have developed another market leading application system - The Bactaerator™. Sumps, wet wells and pumping stations provide continual problems to all those responsible with managing and maintaining them, from pubs and supermarkets to drainage ...


    By Cleveland Biotech Ltd.

  • THE BACTAERATOR™ - The Natural Sump Solution

    Cleveland Biotech Ltd, market leaders in environmental biotechnology, have developed a solution-focused product to banish the common problems of sumps and pumping stations called The Bactaerator®.  Many businesses from pubs to supermarkets, drainage contractors to water companies suffer with maintenance and management issues stemming from the problems caused by sumps, ...


    By Cleveland Biotech Ltd.

  • Computation Fluid Dynamic Modeling of a Proposed Influent Pump Station

    Traditionally pump intake hydraulics have been investigated using scale physical hydraulic models. Computational fluid dynamics (CFD) is a rapidly improving technology that in some cases can be used as a cost or time effective alternative to traditional physical model methods for evaluation of pump intake hydraulics. This paper presents a case study on the use of CFD modeling to re-evaluate and ...

  • Vibration – What is It? How does it Affect My Operation? What can I Do About It?

    ABSTRACTThis paper describes how pump vibration can create problems in conveyance systems. Potential sources of vibration are reviewed as well as factors that affect pump vibration. Examples are presented that demonstrate pump vibration problems: (1) when a wet well level was lowered to obtain system storage capacity, (2) in a new installation, and (3) when one pump in an installation functioned ...

  • An Update on the Columbus Wet Weather Management Plan

    ABSTRACTUndergoing a system wide program for a metropolitan area of over 1 million people to address SSOs is a challenge. The same can be said for addressing CSOs throughout a system. Columbus is addressing both at once, creating a particularly daunting challenge. Columbus submitted one large report, the Wet Weather Management Plan (WWMP), to the Ohio EPA on July 1, ...

  • Model Testing Optimizes and Verifies Design of a 200-MGD Trench Wet Well for the Sugar Creek WWTP

    Charlotte-Mecklenburg Utilities (CMUD) and CDM are currently involved in the design of several treatment plant upgrades at the Sugar Creek wastewater treatment plant (WWTP) in Charlotte, North Carolina. Implementation of this project, which includes a 200-million-gallonper- day (mgd) screenings and influent pump station with dual self-cleaning trench-type wet wells, will provide CMUD with the ...

  • Pumping Station Modifications to Comply with ANSI/HI 9.8 Improve Performance While Lessening O&M Requirements --- Two Case Studies

    Oversized wet wells in wastewater pumping stations lead to the accumulation of grit, sludge and floatable materials. Trench-type wet wells in compliance with ANSI/HI 9.8, the American National Standard for Pump Intake Design, minimize wet well volume and facilitate wet well cleaning through periodic pump down operations. Two pumping stations, the Cross-Irondequoit Pump Station (CIPS), Monroe ...

  • 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 ...

  • A study of the implementation process of an intervention to prevent work-related skin problems in wet-work occupations

    Objectives: The objective of the present implementation study is to document how an intervention to reduce work-related skin problems by means of implementing an evidence-based skin protection programme in six gut-cleaning departments in swine slaughterhouses was understood, accepted and carried out. The association between the degree of implementation and the reduction of work-related skin ...


    By Springer

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