Sentence examples for some tailings from inspiring English sources

In addition, pore structure analysis revealed a coarsening of micro-pore structure with an increase of the tailings content and a good correlation between the porosities and compressive strengths of the UHPC matrices, and microstructure image showed a possibly poor interfacial transition zone around some tailings particles.

Further, tailings contain no organic matter or macronutrients, and usually exhibit acidic pH, although some tailings may be alkaline (Johnson and Bradshaw 1977; Krzaklewski and Pietrzykowski 2002).

For example, radioactive nuclear waste will last for millennia, some mine tailings will be toxic for centuries, and other mines may be reclaimed for agriculture within decades.

Some large tailings ponds are separated by earthen dikes from the Athabasca River, which joins the Mackenzie River to form the major watershed of Northwest Canada.

This is in agreement with the results from the long-term on-site monitoring of EHM hydrogeochemistry [6], and quite different from the pattern of hydrogeochemical stability of some coal mine tailings which had a high and rapid resilience of salinity even after 60-pore-volume leaching [32].

The contaminated water is held in vast tailings ponds, some so toxic that the tar companies employ people to scoop dead birds off the surface.

As they wait for the big payday, some miners are working the tailings, or refuse, produced by the pit, somewhat clandestinely.

Some of these mines, with reactive tailings and waste rocks, are problematic.

In some experiments, sand was replaced by flotation tailings.

The accepting criteria for inert wastes of some indicatives were also surpassed in the tailings leachates of Saliste (Zn, Cd), Stefanca (SO42-) and Brazesti (As).

Moreover, abandoned base-metal tailings are increasingly used in some developing countries for the manufacture of mortars without any control, engineering basis or environmental concern.