sewer system Articles

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When is a Sewer not a Sewer

by Safe Training Systems Ltd  (Dec. 15, 2012)

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 ...

5 Pieces of equipment needed for the pipe bursting process

by TRIC Tools Inc.  (Mar. 3, 2016)

Sewer pipe bursting looks a little bit like magic if you compare it to the traditional methods of sewer replacement. With the use of underground construction equipment, including directional boring equipment, sewer technicians are able to pull a new pipe through the old pipe without digging a hole into the top surface of the ground. The sewer pipe ...

Sedimentation dynamics in combined sewer systems

by IWA Publishing  (Aug. 29, 2013)

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 ...

Groundwater intrusion into leaky sewer systems

by IWA Publishing  (Jul. 1, 2010)

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 ...

Multifaceted sewer improvements program eliminates sewer connection moratorium and system overflows

by Water Environment Federation (WEF)  (Oct. 13, 2007)

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 ...

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

by IWA Publishing  (Dec. 1, 2010)

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 ...

Sewer-Flow Survey Project

by Isodaq Technology - Hydro-Logic Group  (Aug. 21, 2012)

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 ...

Sewer Level Monitoring - Photos

by Solid Applied Technologies Ltd. (SolidAT)  (Apr. 11, 2013)

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 ...

Sewer Construction Bid

by IWA Publishing  (Dec. 8, 2014)

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 ...

Case Study - Sewer Sensors

by Solid Applied Technologies Ltd. (SolidAT)  (Sep. 10, 2013)

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 ...

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