PRc: A municipal perspective
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Reports on the water transmission line replacement project undertaken by the Water Service Department of Spokane, Washington, headed by City Engineer John Bjork. State of the water pipelines in the area; Description of the project; Background on the tasks contracted out to Gonzales Boring and...
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The article shows several alternatives to rock onsite system installation. The first alternative technology is chambers, which are lighter than rock and are consistent in quality when delivered to the site. The use of geotextile wrap is necessary in fine sand soils. Another alternative to rock...
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A combined laboratory-scale system UASB-DFAF and HUASB-DFAF was operated for treating Municipal wastewater at six hydraulic retention times (HRT) of 45.08, 30.06, 22.54, 18.03, 15.03, 12.88 h. COD removal efficiency in range from 72% to 82% in UASB, while in HUASB range from 84 to 89% with...
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Direct drive electro-hydraulic actuator is a new type of hydraulic transmission with easy maintenance and high efficiency, which has been widely used in municipal engineering (such as water pipe network, gas pipe network), nuclear power plants, and other occasions. For these applications, we...
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The resolution of flow characteristics is imperative to all sewerage systems. Design of sewerage system is related to the analysis flow characteristics. Sewerage system should be designed based on the most critical flowrate. Sewerage system design may become inappropriate if the analysis of flow...
- High-Fiber Sewers. Lewis, Jordana // Newsweek;10/4/2004, Vol. 144 Issue 14, pE8
Offers a look at Renaissance Integrated Solutions of Armonk, New York, which will replace decaying municipal sewer pipes and lay fiber-optic cable at the same time. Report that New Orleans, Louisiana, is using the service to make the city digital.
