14-Month Water Quality Investigation of Coal Mine Discharge on Two Rivers in NSW, Australia: Implications for Environmental Regulation

Fleming Callum; Morrison Katherine; Robba Leo; Reynolds Jason; Wright Ian A.

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14-Month Water Quality Investigation of Coal Mine Discharge on Two Rivers in NSW, Australia: Implications for Environmental Regulation

机译：澳大利亚南威尔士州两条河流煤矿排放14个月水质调查：对环境监管的影响

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Ineffective environmental regulation of effluent discharged from an underground coal mine operation has enabled water pollution within two highly valued Australian rivers. This study investigated the impacts on water chemistry of the Bargo and Nepean rivers as a result of the continuous disposal of mine effluent from Tahmoor Colliery over a 14-month period. Coal mine effluent was saline (2180 mu S/cm) and alkaline (8.7 pH), and strongly modified the ionic composition within both rivers. Ecologically hazardous concentrations of several metals were found in mine effluent, including aluminium (858 mu g/L), arsenic (59.7 mu g/L), nickel (60.7 mu g/L), and zinc (49.4 mu g/L). The effluent also contained elevated total nitrogen (2.89 mg/L) and the waste discharge contributed 67% of the median flow volume in the Bargo River below the discharge point. The plume of saline- and metal-enriched contamination extended at least 9 km downstream past the discharge point, impairing water quality in both the Bargo and Nepean rivers. This study reveals more than a decade of ineffective regulatory and governance systems that enable Tahmoor Colliery to continually release inadequately treated mine effluent.

机译：从地下煤矿运营中排出的流出物的无效环境调控在两个高度重视的澳大利亚河流中启用了水污染。本研究调查了在14个月内从Tahmoor Pilliery持续处置矿井污水的不断处置，调查了Bargo和Nepean Rivers的影响。煤矿流出物是盐水（2180μmS/ cm）和碱性（8.7 pH），并强烈地改性两个河流内的离子组合物。在矿井流出物中发现生态危险浓度几种金属，包括铝（858μg/ L），砷（59.7μg/ L），镍（60.7μg/ L）和锌（49.4μg/ L）。流出物还含有升高的总氮（2.89mg / L），废物排放占排放点下方的Bargo河中的67％的中值流量。盐水和金属富含污染的羽流延长了至少9公里的排放点，损害了巴戈和内部河流的水质。本研究揭示了十多年的无效监管和治理系统，使得塔哈默尔煤炭能够不断地释放不充分的矿井流出物。

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《Water, air and soil pollution》 |2021年第3期|90.1-90.21|共21页
作者
Fleming Callum; Morrison Katherine; Robba Leo; Reynolds Jason; Wright Ian A.;
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作者单位

Western Sydney Univ Locked Bag 1797 Penrith NSW 2751 Australia;

Western Sydney Univ Locked Bag 1797 Penrith NSW 2751 Australia;

Western Sydney Univ Locked Bag 1797 Penrith NSW 2751 Australia;

Western Sydney Univ Locked Bag 1797 Penrith NSW 2751 Australia;

Western Sydney Univ Locked Bag 1797 Penrith NSW 2751 Australia;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Environmental regulation; Environmental management; Water quality; Metals; Nutrients; Ionic composition;

机译：环境规则;环境管理;水质;金属;营养素;离子组成;

14-Month Water Quality Investigation of Coal Mine Discharge on Two Rivers in NSW, Australia: Implications for Environmental Regulation

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