Sentence examples for mine discharge from inspiring English sources

The settlement resolves federal claims under the Clean Water Act and West Virginia's claims under its water pollution control act for mine discharge violations in West Virginia, he said.

However, more work is needed to determine the actual relationship between column leaching and actual field-scale mine discharge potentials.

Hence, available research strongly suggests that elevated concentrations of major ions in mine discharge waters, measured as SC and TDS, are causing aquatic community alterations.

Finally, we find that the high temperature exchange machinery system (HEMS) technology that use mine discharge as the cold source, is excellent to heat-harm control in deep mines.

Here, we present a case study of an ephemeral creek in the semi-arid Hamersley Basin of northwest Australia that has received continuous mine discharge for more than six years.

Data are presented providing an assessment of alkalinity generating media (shells or limestone) and modes of metal removal in bioreactors receiving a synthetic acidic metal mine discharge (pH 2.7, Zn 15 mg/L, SO42− 200 mg/L, net acidity 103 mg/L as CaCO3) subject to methanol dosing.

Thus, even circumneutral mine discharges can contain high levels of sulfates as long as sufficient reactive carbonates are present in the source spoils.

Laboratory and field experiments were used to measure the effects of several variables on the rate of heterogeneous oxidation in acid mine discharges (AMD).

Table 1 Concentrations of radionuclides (mBq/L ± 1 SD) in the dissolved phase (<0.45 µm) of surface waters and mine discharges Sampling site 238U 234U 230Th210Po 232Th 210PBasinPof232Th Basin of River Zêzere  QF1, Rib.

As a first approximation for such systems, hydrological and lithological factors, which can reasonably be expected to influence pollutant release, have been assessed by empirically assessing data from 81 abandoned deep coal mine discharges in the UK.

Based on a similar study carried out in Makum coalfields in Assam by Equeenuddin et al. (2010), it was found that the mine discharges were highly acidic (up to pH 2.3) to alkaline (up to pH 7.6) in nature with high concentration of SO4 2− and mine water was highly enriched with Fe, Al, Mn, Ni, Pb and Cd.