sewer piping Articles | Environmental XPRT

Predicting wastewater temperatures in sewer pipes using abductive network models

A predictive modelling technique was employed to estimate wastewater temperatures in sewer pipes. The simplicity of abductive predictive models attracts large numbers of users due to their minimal computation time and limited number of measurable input parameters. Data measured from five sewer pipes over a period of 12 months provide 33,900 training entries and 39,000 evaluation entries to ...

Jan. 21, 2015

By IWA Publishing

How bursting head technology is useful in sewer pipe replacement?

If you are worried that replacing a sewer pipe is going to be a nightmare, let me put your mind at ease. Gone are the days when replacing a sewer pipe meant tearing up your home or the whole front yard. With the latest technology in trenchless sewer replacement, you can get your sewer pipe replaced without any major construction work. The technology that is used today is called ‘bursting ...

Feb. 1, 2017

By Tric Tools, Inc.

How having the Right Pipe Bursting Equipment Can Boost Trenchless Repair Service Providers

A Trenchless Repair for sewer pipes has been trending in parts of the country. It allows for pipes to be fixed or replaced without trenches being dug into the yard or landscape. It also allows the problem to be fixed without the mess of digging up existing structures such as; porches, driveways, sidewalks, and much more. It is important for business’s who advertise the Trenchless Repair to ...

Sep. 5, 2016

By Tric Tools, Inc.

Tighter Sewer Joints - The Responsible Choice Case Study

Municipal engineers can ensure sewer piping systems remain leak-free throughout their operating life by specifying solutions that offer tighter sewer joints. Leaking joints in a sewer piping system result in the loss of soil fines in the bedding around the pipe. As water percolates out of a leaky joint, it mechanically erodes the bedding material around the pipe joint. While this loss not only ...

Sep. 1, 2013

By IPEX, Inc.

The efficiency of asset management strategies to reduce urban flood risk

In this study, three asset management strategies were compared with respect to their efficiency to reduce flood risk. Data from call centres at two municipalities were used to quantify urban flood risks associated with three causes of urban flooding: gully pot blockage, sewer pipe blockage and sewer overloading. The efficiency of three flood reduction strategies was assessed based on their effect ...

Jan. 1, 2011

By IWA Publishing

An approximate solution for two-dimensional groundwater infiltration in sewer systems

Estimating groundwater infiltration into sewer systems is important for wastewater treatment operators and municipalities. This paper presents an approximate solution for steady-state groundwater infiltration into sewer systems through line defects. The groundwater table was assumed to be horizontal and the aquifer homogeneous and isotropic. Mobius transformation technique and equivalent ...

Nov. 20, 2012

By IWA Publishing

An exploratory study of the effects of stormwater pipeline materials on transported stormwater quality

Implications of three sewer pipe materials (concrete, galvanized corrugated steel, and polyvinyl chloride (PVC)) for stormwater quality were explored in laboratory experiments, in which three types of stormwater, SW1–SW3, were circulated in 0.5 m long sewer pipe sections. SW1 and SW2 represented synthetic rainwater, without and with fine street sediment added (CTSS = 150 mg/L), respectively, ...

Mar. 31, 2017

By IWA Publishing

An expert system with radial basis function neural network based on decision trees for predicting sediment transport in sewers

In this study, an expert system with a radial basis function neural network (RBF-NN) based on decision trees (DT) is designed to predict sediment transport in sewer pipes at the limit of deposition. First, sensitivity analysis is carried out to investigate the effect of each parameter on predicting the densimetric Froude number (Fr). The results indicate that utilizing the ratio of the median ...

Apr. 22, 2016

By IWA Publishing

Assessment of erosion and sedimentation dynamic in a combined sewer network using online turbidity monitoring

Eroded sewer sediments are a significant source of organic matter discharge by combined sewer overflows. Many authors have studied the erosion and sedimentation processes at the scale of a section of sewer pipe and over short time periods. The objective of this study was to assess these processes at the scale of an entire sewer network and over 1 month, to understand whether phenomena ...

Jul. 7, 2015

By IWA Publishing

Ross Valley Sanitation - Case Study

In-house pipe bursting provides a cost-effective solution for I & I reduction Challenge Replace 200 miles of aging sewer pipe at 5 miles/year over 40 years with predictable costs and reliable ROI, to get rid of I/I spikes in one of the wettest climates on America’s West Coast. Solution We help this California sewer authority meet its primary objective of combating I/I ...

Nov. 19, 2015

By Tric Tools, Inc.

Abdo Residence, Fort Lauderdale, Florida - Case study

Project Name: Abdo Residence Product: Rainstore3 Application: Underground Stormwater Detention City: Fort Lauderdale State/Province: Florida Install Date: October 2004 Install Size: 840 units Address: Unpublished Client: Albo Companies Designer: Architect-Sanders Planning, 954-491-8891 Contractor: Installer-Jim O’Donald with Workhorse Construction 561-371-7019 Directions: ...

Dec. 21, 2010

By Invisible Structures, Inc.

New Project Sample - Case Study

In-house pipe bursting provides a cost-effective solution for I & I reduction Challenge Replace 200 miles of aging sewer pipe at 5 miles/year over 40 years with predictable costs and reliable ROI, to get rid of I/I spikes in one of the wettest climates on America’s West Coast. Solution We help this California sewer authority meet its primary objective of combating I/I ...

Dec. 11, 2015

By Tric Tools, Inc.

City of Hamilton - Case Study

City-wide (42,000 manhole and associated 3300 km of sewer pipes) sewer condition assessment program to assist in the development of Asset Management strategies in conjunction with the development of ongoing sewer flushing and maintenance ...

Sep. 2, 2015

By CTZoom Technologies

Development of the Stormwater Information System that protects life and property from floods

The Stormwater Information System distributes storm pump operating conditions, etc. to residents in real time via the Internet utilizing a private network that employs optical fibers installed in sewer pipes. Information to be distributed includes advisory and warning information relating to weather data, weather radar information, river information, emergency disaster information, refuge maps, ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Global sensitivity analysis of an in-sewer process model for the study of sulfide-induced corrosion of concrete

The presence of high concentrations of hydrogen sulfide in the sewer system can result in corrosion of the concrete sewer pipes. The formation and fate of hydrogen sulfide in the sewer system is governed by a complex system of biological, chemical and physical processes. Therefore, mechanistic models have been developed to describe the underlying processes. In this work, global sensitivity ...

Feb. 19, 2014

By IWA Publishing

Rapid detection of sewer defects and blockages using acoustic-based instrumentation

Sewer flooding incidents in the UK are being increasingly associated with the presence of blockages. Blockages are difficult to deal with as although there are locations where they are more likely to occur, they do occur intermittently. In order to manage sewer blockage pro-actively sewer managers need to be able to identify the location of blockages promptly. Traditional closed-circuit ...

Jan. 1, 2011

By IWA Publishing

BOSS 2000 HDPE Storm Sewer Pipe, Stettler, AB

Owner: Town of Stettler Installer: Woooden Construction Ltd. Designer: Associated Engineering Alberta Ltd. Location: 57 Street, Stettler, Alberta As part of a sanitary main replacement project, the Town of Stettler was faced with the challenge of replacing an aging storm sewer line under very low cover conditions. After considering several options, Associated Engineering specified 750mm ...

Oct. 28, 2011

By Armtec

Modelling the viability of heat recovery from combined sewers

Modelling of wastewater temperatures along a sewer pipe using energy balance equations and assuming steady-state conditions was achieved. Modelling error was calculated, by comparing the predicted temperature drop to measured ones in three combined sewers, and was found to have an overall root mean squared error of 0.37 K. Downstream measured wastewater temperature was plotted against modelled ...

Jul. 23, 2014

By IWA Publishing

Comparing the utility of decision trees and support vector machines when planning inspections of linear sewer infrastructure

Closed-circuit television inspection technology is traditionally used to identify aging sewer pipes requiring rehabilitation. While these inspections provide essential information on the condition of pipes hidden from day-to-day view, they are expensive and often limited to small portions of an entire sewer system. Municipalities may benefit from utilizing predictive analytics to leverage ...

Nov. 10, 2014

By IWA Publishing

Will greywater reuse really affect the sewer flow? Experience of a residential complex in Al Ain, UAE

Reuse of recycled wastewater is one of the most feasible unconventional urban water sources in the United Arab Emirates (UAE). The extraction and reuse of greywater might affect the water and sewer pipe networks by changing flow characteristics. Therefore, the research question is how much greywater can be reused without affecting the existing water and sewer pipe networks? A residential ...

Aug. 10, 2016

By IWA Publishing

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