Higher P concentrations were recorded at end-of-pipe locations compared to piezometers at similar depth, and attributed to a larger contributing area reaching the pipe from the surface and surrounding subsurface layers.
The survey contents include the basic environmental situation in 2007, the generation levels of the main pollutants at that time, and the amount of pollution actually discharged into the environment after end-of-pipe treatment at all kinds of pollution sources.
Earlier this month, the United States Environmental Protection Agency acknowledged that diverting storm water to greenery often is more effective at reducing combined sewage overflows than end-of-pipe technologies.
The main goal of this study is to evaluate how the magnitudes of key model parameter uncertainties influence the selection of end-of-pipe interventions (at WWTPs) designed to reduce the microcontaminant loads in rivers.
End-of-pipe data at 1 m bgl highlighted connectivity with the overlying plot and showed different water attenuation functionality than the deeper system.
Water provenance data showed distinct signatures of: precipitation and deep groundwater at 3 4 m below ground level (bgl) and water entering, migrating and discharging at the end of pipe location.
New tools for sustainable design can refocus product development from a process aimed at limiting end of pipe liabilities to one geared to creating safe, quality products right from the start.
Putting your scraps into the sink and expecting their value to be realized at the end of the pipe is in many ways a pipe dream.
With this method, predicted or measured spatial average vibration velocity and theoretically derived strain factors are used to estimate maximum strain at the ends of pipes.
The slab is 15 inches thick in most places, but the pipe is 6 inches in diameter and the bell housing at the end of the pipe is 10.4 inches in diameter, meaning that over the pipe the slab was just 4 to 6 inches thick — not much better than a common sidewalk, Bea said.
However, abatement processes are still required at many plants to reduce the discharge of pollutants at the end-of-the-pipe.
