sewer systems Articles

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Case Study - Sewer Sensors

by Solid Applied Technologies Ltd.  (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 ...

Sewer Level Monitoring - Photos

by Solid Applied Technologies Ltd.  (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-Flow Survey Project

by Isodaq Technology  (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 ...

Risk assessment of sewer condition using artificial intelligence tools: application to the SANEST sewer system

by IWA Publishing  (Feb. 19, 2014)

Operation, maintenance and rehabilitation comprise the main concerns of wastewater infrastructure asset management. Given the nature of the service provided by a wastewater system and the characteristics of the supporting infrastructure, technical issues are relevant to support asset management decisions. In particular, in densely urbanized areas ...

Cost-effective solutions for water quality improvement in the Dommel River supported by sewer–WWTP–river integrated modelling

by IWA Publishing  (Sep. 16, 2013)

This project aims at finding cost-efficient sets of measures to meet the Water Framework Directive (WFD) derived goals for the Dommel River (The Netherlands). Within the project, both acute and long-term impacts of the urban wastewater system on the chemical and ecological quality of the river are studied with a monitoring campaign in the urban ...

Performance of sanitary sewer collection system odour control devices operating in diverse conditions

by IWA Publishing  (Dec. 19, 2013)

Controlling odours from sanitary sewer systems is challenging as a result of the expansive nature of these systems. Addition of oxidizing chemicals is often practiced as a mitigation strategy. One alternative is to remove odorous compounds in the gases vented from manholes using adsorptive media. In this study, odour control devices located at ...

Delivering an Enhanced Sewer Condition Prioritization Process

by Innovyze  (Dec. 20, 2006)

SCREAM™ is a sewer and manhole condition assessment tool developed by CH2MHill. It has been built into Wallingford Software’s InfoNet asset management solution as one of the standard choices for sewer and manhole condition grading. There is emphasis across the collections systems industry worldwide for sewer condition prioritization methods and ...

Sewer Level Monitoring System - a case study

by Solid Applied Technologies Ltd.  (Mar. 8, 2011)

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 ...

Integrated planning of rehabilitation strategies for sewers

by IWA Publishing  (Jul. 4, 2013)

Building measures in sewer systems are increasingly driven by rehabilitation/retrofitting and adaptation needs. Aging infrastructure together with changing boundary conditions (due to climate change, land-use change, demographic change) and also changing design standards and legislation require a prospective design to preserve the functionality ...

Development of a semi-automated model identification and calibration tool for conceptual modelling of sewer systems

by IWA Publishing  (Jul. 4, 2013)

Applications such as real-time control, uncertainty analysis and optimization require an extensive number of model iterations. Full hydrodynamic sewer models are not sufficient for these applications due to the excessive computation time. Simplifications are consequently required. A lumped conceptual modelling approach results in a much faster ...

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