sewer system Articles

  • When is a Sewer not a Sewer

    Any Sewer is a Sewer –isn’t it? If you were to ask the average man on the street what happened to the water that left his house via the myriad of drain pipes, overflows, soil stacks, gutters, sewer pipes etc would he really know what happened to it? Do consumers actually know or understand that there are different sewers running under their feet? In an effort to control the spiralling ...


    By Safe Training Systems Ltd

  • Reasons to choose Trenchless Pipe Bursting Repairing Equipment

    Trenchless technology has altered the industry, revolutionizing sewer pipe repair and gaining the favor of many property owners today. No digging, no re-landscaping, no use of chemicals- the trenchless strategy is far better than the traditional approach. In the developing business sector, pipe repair companies need the most effective equipment to stay competitive. The ...


    By TRIC Tools Inc.

  • Groundwater intrusion into leaky sewer systems

    Vast volumes of groundwater are drained by urban sewer systems. This unwanted flow component intrudes into sewer systems through leaky joints or connected house drains. However, unlike urban storm drainage, it has a high seasonal variation corresponding to groundwater storage and long slow recessions similar to baseflow in rivers also fed by shallow groundwater exfiltrating into the surface ...


    By IWA Publishing

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Sedimentation dynamics in combined sewer systems

    Sediments in combined sewers may negatively affect the performance of sewer systems and significantly promote the formation of hydrogen sulfide. To prevent this, German sewer systems are cleaned regularly but at high costs. In order to optimize the cleaning intervals, this study investigates how deposits build up and change over a defined period under constant conditions. The experiments were ...


    By IWA Publishing

  • Economic analyses for optimizing the construction of separate sewer in a hybrid sewer system

    Metropolitan Taipei located in north Taiwan uses a hybrid sewer system consisting of mostly separate sewer for the populated regions, and partly combined sewer for less populated regions. This study used the concept that Marginal Cost of Control (MCC) equals to Marginal Benefits of Control (MBC) to establish the method for studying the optimal household connection percentage, and the most ...


    By IWA Publishing

  • Multifaceted sewer improvements program eliminates sewer connection moratorium and system overflows

    The sewer system serving Borough of Jewett City, Connecticut dates from the late 1800’s and was originally constructed as a combined sewer system with the discharges directed to the area rivers. In the 1970’s, the raw sewage discharges from the Borough system were removed from the rivers and redirected to a newly constructed wastewater treatment facility. However, the overflows from the ...

  • Sewer-Flow Survey Project

    Environmontel Ltd Supply of HydroLog4 time-series database and flow data processing system for sewer-flow survey projects Environmontel Ltd, an established flow-survey company based in Worcester, selected HydroLog4 as their sewer-flow survey information system for use by survey teams on short-term drainage-area surveys and other longer-term monitoring projects. The ...

  • Case Study - Sewer Sensors

    Sewer Sensors Sewer sensors are offered by Solid Applied Technologies for remote level monitoring. The sesnors are ultrasonic, non-contact with no moving parts. The system is equipped with an external battery pack and can operate at a low-power-mode for long term life. The sensors are equipped with embedded GSM cellular modem and act as M2M terminals, transmitting data ...

  • Sewer Level Monitoring - Photos

    Sewer Level Monitoring - Photos Photos in this article present the complexity and versatility of sewer level monitoring. When examining the photos, pay special attention to the stand-alone autonomous characteristics of each installation. In lack of any cabling from the outside, whether data cables or power cables, the solution is fed from its own battery power supply. Data is tranmitted ...

  • Sewer Construction Bid

    Advanced or tertiary wastewater treatment tries to remove all the impurities from the wastewater to produce almost drinking quality effluents. However, this is an expensive process requiring high level technical expertise, resources and machinery. Finally, disinfection of the treated wastewater may be carried out to destroy harmful bacteria and other organisms that may still be present in ...


    By IWA Publishing

  • Municipal sewer remote monitoring

    Sewers are critical heavy duty infrastructure components requiring costly maintenance. Many municipalities suffer from ageing pipelines that pose higher chances of failure. Sewer leak or overflow results in high cost as a result of civil reimbursement and due to inflected illness. Moreover Civilian frustration that results form the overflow is often targeted towards the municipality. Overflow can ...

  • Modeling storage capacity in Amsterdam’s sewer system

    About Waternet Waternet is a joint executive within the Amsterdam City Council and the regional management board Amstel, Gooi en Vecht, undertaking strategy, policy, design, planning, projects and administration for wastewater, groundwater and potable water. The organization controls 12 wastewater treatment plants, 3,500km of stormwater and wastewater pipelines, 500km of pressure pipes, ...


    By Innovyze

  • Infrastructure Bypass: Rehabilitating the Nation’s Decaying Sewer Systems

    Billions of dollars in federal aid money has been allocated to rehabilitating our decaying sewer systems, and while these are projects that will be done, there will be associated problems with trying to keep roads and businesses open during this work. Typically, in rehabilitating existing sewer lines, the flow of sewage cannot simply be diverted—it must be “bypassed,” which ...


    By Griffin Dewatering

  • An agent-based approach for generating virtual sewer systems

    The application of artificial case studies is a well established technique in urban drainage to test measures, approaches or models. However, the preparation of a virtual case study for a sewer system is a tedious task. Several algorithms have been presented in the literature for an automatic generation of virtual sewer systems. Applying the approach of generating virtual cities by means of the ...


    By IWA Publishing

  • Sewer Level Monitoring System - a case study

    Background - The business of sewage level monitoring in sewers is accelerating across many countries. Strict regulations, the need to avoid environmental disasters, violation fines, early warnings and planning needs are just some of the forces shaping this growing trend.   Challenges Quantifying sewage flow and level is one of the most ...

  • Factors affecting economies of scale in combined sewer systems

    A generic model is introduced that represents the combined sewer infrastructure of a settlement quantitatively. A catchment area module first calculates the length and size distribution of the required sewer pipes on the basis of rain patterns, housing densities and area size. These results are fed into the sewer-cost module in order to estimate the combined sewer costs of the entire catchment ...


    By IWA Publishing

  • 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

  • Low pressure sewer system for affluent existing neighborhood

    The River Oaks subdivision is an affluent, mature residential community located in Fairfax, County Virginia which includes 114 existing single family dwelling units with individual septic tank drainfields. The Fairfax County Health Department determined that several drainfields have failed and expressed concern that others would soon fail. In order to prevent the health and environmental problems ...

  • Simplifying impact of urban development on sewer systems

    Linking urban development and urban drainage models is a more and more popular approach when impacts of pavement of urban areas on sewer system performance are evaluated. As such an approach is a difficult task, this is not a feasible procedure for everyday engineering practice. We propose an alternative method, based on a developed simple near-quadratic relationship, which directly translates ...


    By IWA Publishing

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