In situ monitoring of an inclined cover made with mine waste materials to control water infiltration on a reactive waste rock dyke

2021 ◽  
Vol 239 ◽  
pp. 103790
Author(s):  
Alex Kalonji-Kabambi ◽  
Bruno Bussière ◽  
Isabelle Demers
Keyword(s):  
Mine Waste ◽  
Waste Rock ◽  
In Situ Monitoring ◽  
Water Infiltration ◽  
Waste Materials ◽  
Control Water

scholarly journals Pengelolaan Lansekap Lahan Bekas Tambang: Pemulihan Lahan Dengan Pemanfaatan Sumberdaya Lokal (In-Situ)

2020 ◽  
Vol 11 (2) ◽  
pp. 55
Author(s):  
Deddy Erfandi
Keyword(s):  
Cover Crops ◽  
Mine Drainage ◽  
Negative Impact ◽  
Mine Waste ◽  
Landscape Management ◽  
Waste Rock ◽  
Growth Media ◽  
Intensive Exploitation

<p><strong>Abstrak. </strong>Salah satu pemanfaatan lahan yang memiliki dampak negative terhadap kualitas lahan adalah kegiatan penambangan. Dengan ekploitasi lahan yang intensif menyebabkan permukaan lahan (lansekap) menjadi tidak beraturan. Limbah sisa hasil tambang yang berada dipermukaan lahan seperti batuan sisa bahan tambang (<em>overburden</em>), sisa bahan tambang yang berbentuk pasir (<em>tailing</em>) dan air asam tambang serta limbah batuan yang mengandung logam berat sering menimbulkan kualitas lahan menjadi <em>stress</em>. Bahan sisa limbah hasil tambang memiliki kandungan bahan organik dan kelembaban tanah yang sangat rendah, tanah mudah padat. Lapisan tanah atas pada lahan bekas tambang sangat heterogen dan memiliki berat isi tinggi, bersifat toksik dan hara makro menjadi tidak tersedia bagi tanaman sehingga tanaman tidak tumbuh dan berproduksi serta memiliki populasi mikroba tanah rendah. Pengelolaan lansekap pada lahan bekas tambang tidak terlepas dari tindakan konservasi tanah, karena selain memperbaiki tanah untuk media tumbuh tanaman, juga mengurangi dampak negative terhadap erosi dan aliran permukaan. Salah satu pendekatan dalam pengelolaan lansekap adalah meningkatkan kualitas tanah yang ramah lingkungan dan berkelanjutan. Pencegahan degradasi lahan dan membangun sumber bahan organik <em>in-situ</em>, melalui rotasi tanaman, sistim pengolahan tanah, penggunaan mulsa tanaman, tanaman penutup tanah dan pertanaman berlereng. Pemanfaatan sumberdaya lokal menjadi penting dalam rangka meningkatkan kualitas lahan bekas tambang. Namun hal terpenting bahwa pembenah tanah harus potential memperbaiki sifat fisik, kimia dan mikrobiologi tanah, serta bahan pembenah tanah atau ameliorant merupakan sumberdaya lokal.  </p><p><em><strong>Abstract. </strong>One use of land that has a negative impact on the quality of land is mining. With the intensive exploitation of land which causes the surface of the land (landscape) becomes irregular. Residual waste that is surface mined land as mine waste rock material (overburden), residual minerals in the form of sand (tailings) and acid mine drainage and waste rock containing heavy metals often cause the quality of land to become stressed. Waste material mined residual organic matter and soil moisture is very low, easy to soil solid. A layer of topsoil on mined lands is very heterogeneous and have a high bulk density, toxic and macro nutrients unavailable to plants so that the plants do not grow and produce, and have low soil microbial populations. Landscape management on mined land can not be separated from soil conservation measures, because in addition to improve the soil for plant growth media, also reduces the negative impact on erosion and runoff. One approach in the management of the landscape is improving soil quality that are environmentally friendly and sustainable. Prevention of land degradation and build a sources of organic material in-situ, through crop rotation, tillage systems, crop mulching, cover crops and crop cycle. Utilization of local resources to be important in order to improve the quality of mined lands. But the most important thing, that soil ameliorant should be potential improve to soil physical, chemical and biological , as well as ameliorant material are a local resource.</em></p>

scholarly journals Three‐Dimensional Time‐Lapse Geoelectrical Monitoring of Water Infiltration in an Experimental Mine Waste Rock Pile

2019 ◽  
Vol 18 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Adrien Dimech ◽  
Michel Chouteau ◽  
Michel Aubertin ◽  
Bruno Bussière ◽  
Vincent Martin ◽  
...  
Keyword(s):  
Mine Waste ◽  
Three Dimensional ◽  
Time Lapse ◽  
Waste Rock ◽  
Water Infiltration ◽  
Rock Pile ◽  
Waste Rock Pile ◽  
Mine Waste Rock

scholarly journals Antimony leaching from mine waste and soil at a stibnite mine in North-Vietnam

2021 ◽  
Author(s):  
Valérie Cappuyns ◽  
Axelle Van Campen ◽  
Jillian Helser
Keyword(s):  
Wind Erosion ◽  
Mine Waste ◽  
Public Awareness ◽  
Mineralogical Composition ◽  
Water Soluble ◽  
Waste Rock ◽  
Waste Materials ◽  
Potential Hazard ◽  
North Vietnam ◽  
The Impact

&lt;p&gt;While the impact of Sb mining is documented in literature from China, Australia, and Europe, little information is available concerning the environmental impact of Sb mining in Vietnam. This paper presents the results of an exploratory study of mine waste and soil samples from the Mau Due mine (North Vietnam). Besides the chemical and mineralogical composition of soils, waste rock and slag samples, water-soluble and exchangeable/reversibly adsorbed Sb species were also determined, as well as the pH dependent release of Sb. Stibnite and pyrite were found in slag and waste rock samples, with total Sb concentrations in the range of 191&amp;#8211;15,699 mg/kg. Soils were characterized by Sb concentrations in the range of 47&amp;#8211;95 mg/kg.&amp;#160;&lt;br&gt;The leaching test show that, when mine waste stored on the Mau Due mining site comes into contact with water, up to 1.7% of its total Sb content is leached. However, because of the high Sb content of some of the waste materials, high dissolved Sb concentrations are found in the leachates. Some of the investigated samples are listed by the EU as absolutely hazardous waste, because of the leaching potential of Sb. Especially in the rainy season, leaching of Sb from the mine waste and slags can contribute to the dispersion of Sb. An increased release of Sb was observed from pH 7.5 to 12.8. Modelling also indicated that the dissolution of stibnite and reprecipitation as Sb(OH)&lt;sub&gt;3&lt;/sub&gt; is not the only factor that explains Sb solubility. Desorption reactions and the incorporation of Sb in other mineral phases are most likely also important factors determining the retention and release of Sb from the waste materials and slags.&lt;br&gt;The waste heaps consist of fine-grained material, that can be prone to wind erosion in the dry season. Therefore, measures to prevent the further dispersion of Sb and other potentially hazardous elements, both via leaching and wind erosion, should be put in place. In order to establish regulations for environmental protection, it is necessary to raise governmental and public awareness. The high concentrations of Sb imply an important potential hazard for soils, water bodies, and the food chain, for which appropriate measures are necessary.&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Reference&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;Cappuyns, V., Van Campen, A., Helser, J.&amp;#160; (2020). Antimony leaching from soils and mine waste from the Mau Due antimony mine, North-Vietnam. Journal Of Geochemical Exploration, 220, Art.No. 106663, 1-13. doi: 10.1016/j.gexplo.2020.106663&amp;#160;&lt;/p&gt;

The piezoelectric implant: its applications to the in situ monitoring of materials

2001 ◽  
Vol 89 ◽  
pp. 24-26
Author(s):  
Y. Jayet ◽  
J.-C. Baboux
Keyword(s):  
In Situ Monitoring

Fetal pulse oximeter for in situ monitoring during labour and birth

2008 ◽  
Vol 52 (1-2) ◽  
pp. 85
Author(s):  
Ákos Becker ◽  
Gábor Harsányi
Keyword(s):  
Pulse Oximeter ◽  
In Situ Monitoring

scholarly journals Development of an electrochemical sensor for in-situ monitoring of reactive species produced by cold physical plasma

2021 ◽  
Vol 326 ◽  
pp. 129007
Author(s):  
Zahra Nasri ◽  
Giuliana Bruno ◽  
Sander Bekeschus ◽  
Klaus-Dieter Weltmann ◽  
Thomas von Woedtke ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Reactive Species ◽  
In Situ Monitoring ◽  
Physical Plasma

In Situ Monitoring of Polaron Localization and Cell Activity with Charge Accumulation Spectroscopy

2021 ◽  
pp. 2105799
Author(s):  
Yu Zhang ◽  
Li Yang ◽  
Jintao Wang ◽  
Wangying Xu ◽  
Qiming Zeng ◽  
...  
Keyword(s):  
Cell Activity ◽  
In Situ Monitoring ◽  
Charge Accumulation
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