Evaluation of the long term groundwater pollution by the open cast lignite mine Jänschwalde (Germany)

2001 ◽  
Vol 73 (2) ◽  
pp. 97-111 ◽  
Author(s):  
Wolfgang Rolland ◽  
Hella Wagner ◽  
Robert Chmielewski ◽  
Uwe Grünewald
Keyword(s):  
Groundwater Pollution ◽  
Lignite Mine ◽  
Open Cast

scholarly journals Results from long-term fertilizer experiments in China: The risk of groundwater pollution by nitrate

2011 ◽  
Vol 58 (3-4) ◽  
pp. 177-183 ◽  
Author(s):  
B.Q. Zhao ◽  
X.Y. Li ◽  
H. Liu ◽  
B.R. Wang ◽  
P. Zhu ◽  
...  
Keyword(s):  
Groundwater Pollution

Effect of Wastewater Treated by EM Reused for Irrigation on Shallow Groundwater Quality

2013 ◽  
Vol 409-410 ◽  
pp. 318-324 ◽  
Author(s):  
Chao Yin ◽  
Xiao Hou Shao ◽  
Xiao Wei Zhang ◽  
Liang Ren ◽  
Ting Ting Chang ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Environmental Pollution ◽  
Groundwater Pollution ◽  
Shallow Groundwater ◽  
Wastewater Irrigation ◽  
Irrigation Amount

In allusion to environmental pollution brought about by wastewater irrigation, EM technology was introduced to study the feasibility of EM application in wastewater irrigation. The results show that EC, NO3--N and TN value of EM treatment in shallow groundwater are all less than those of WW treatment as a whole. In all samples, 59.3% NO3--N values are in the alert status, and when irrigation amount reaches 360mm, treatment WW has caused shallow groundwater pollution. TN concentration in treatment WW-3 on June 27 and July 9 is more than 110 mg/L. It suggests that NO3--N can easily penetrate into shallow groundwater with wastewater irrigation and there is insurance of groundwater pollution in the long-term wastewater irrigation. It also indicates that application of wastewater treated by EM reused for irrigation is feasible. TP values are all very low and suggest the pollution of P does not happen.

scholarly journals First experience with Remote Sensing methods and selected sensors in the monitoring of mining areas – a case study of the Belchatow open cast mine

2018 ◽  
Vol 29 ◽  
pp. 00023
Author(s):  
Jaroslaw Wajs
Keyword(s):  
Region Of Interest ◽  
Open Pit ◽  
Mining Areas ◽  
Dumping Site ◽  
Lignite Mine ◽  
Sentinel 2A ◽  
Remote Sensing Methods ◽  
Land Changes ◽  
Open Cast

The paper presents satellite imagery from active SENTINEL-1A and passive SENTINEL-2A/2B sensors for their application in the monitoring of mining areas focused on detecting land changes. Multispectral scenes of SENTINEL-2A/2B have allowed for detecting changes in land-cover near the region of interest (ROI), i.e. the Szczercow dumping site in the Belchatow open cast lignite mine, central Poland, Europe. Scenes from SENTINEL-1A/1B satellite have also been used in the research. Processing of the SLC signal enabled creating a return intensity map in VV polarization. The obtained SAR scene was reclassified and shows a strong return signal from the dumping site and the open pit. This fact may be used in detection and monitoring of changes occurring within the analysed engineering objects.

scholarly journals Mechanisms of clay smear formation in unconsolidated sediments – insights from 3-D observations of excavated normal faults

Solid Earth ◽  
2016 ◽  
Vol 7 (3) ◽  
pp. 789-815 ◽  
Author(s):  
Michael Kettermann ◽  
Sebastian Thronberens ◽  
Oscar Juarez ◽  
Janos Lajos Urai ◽  
Martin Ziegler ◽  
...  
Keyword(s):  
Microscopic Study ◽  
Thickness Distribution ◽  
Normal Fault ◽  
Fault Zones ◽  
Unconsolidated Sediments ◽  
Normal Faults ◽  
Low Permeability ◽  
Lignite Mine ◽  
Log Normal ◽  
Open Cast

Abstract. Clay smears in normal faults can form seals for hydrocarbons and groundwater, and their prediction in the subsurface is an important problem in applied and basic geoscience. However, neither their complex 3-D structure, nor their processes of formation or destruction are well understood, and outcrop studies to date are mainly 2-D. We present a 3-D study of an excavated normal fault with clay smear, together with both source layers, in unlithified sand and clay of the Hambach open-cast lignite mine in Germany. The faults formed at a depth of 150 m, and have shale gouge ratios between 0.1 and 0.3. The fault zones are layered, with sheared sand, sheared clay and tectonically mixed sand–clay gouge. The thickness of clay smears in two excavated fault zones of 1.8 and 3.8 m2 is approximately log-normal, with values between 5 mm and 5 cm, without holes. The 3-D thickness distribution is heterogeneous. We show that clay smears are strongly affected by R and R' shears, mostly at the footwall side. These shears can locally cross and offset clay smears, forming holes in the clay smear, while thinning of the clay smear by shearing in the fault core is less important. The thinnest parts of the clay smears are often located close to source layer cut-offs. Locally, the clay smear consists of overlapping patches of sheared clay, separated by sheared sand. More commonly, it is one amalgamated zone of sheared sand and clay. A microscopic study of fault-zone samples shows that grain-scale mixing can lead to thickening of the low permeability smears, which may lead to resealing of holes.

scholarly journals Justification of Conditions and Parameters for Designing of Mining Systems in Construction and Operation of Complex Conveyor Ore Transportation in Deep Open-Cast Mines

2020 ◽  
pp. 102-107
Author(s):  
V.S. Fedotenko ◽  
A.V. Vlasov ◽  
S.Ya. Kliver ◽  
A.G. Shadrunov
Keyword(s):  
New Technology ◽  
Transport Systems ◽  
Mining Operations ◽  
Term Operation ◽  
Advantages And Disadvantages ◽  
Open Cast Mining ◽  
Transport Component ◽  
Smart Technologies ◽  
Open Cast

Increasing depths of open-cast mining and the distances of rock material haulage by trucks contribute to the rise in total costs. Open-cut transport is the main source of environmental impact due to high levels of exhaust emissions as well as dusting of the motor road surface and the transported rock mass. These factors make optimization of the transport component a priority. The paper considers the specific features of mining operations in deep open-pits. It is demonstrated that in such conditions the transition to conveyor ore transportation with justification of conditions and parameters for designing of mining systems is an important scientific and practical task. Advantages and disadvantages of the truck and conveyor haulage are analyzed. Conditions that determine safe transition to the conveyor ore transportation are defined using the case of the Kostomuksha open-cast mine. It is proven that justifi-cation of conditions and parameters for the design of the mining systems in construction and operation of a complex conveyor ore transportation system will help to improve the efficiency of transition to the new technology, to ensure proper management of the mining operations during the transition peri-od and to introduce reliable smart technologies for long-term operation of complex mining transport systems in deep open-cast mines.

Sewer losses and interactions with groundwater quality

2002 ◽  
Vol 45 (3) ◽  
pp. 195-202 ◽  
Author(s):  
J.B. Ellis ◽  
D.M. Revitt
Keyword(s):  
Groundwater Quality ◽  
Groundwater Pollution ◽  
Urban Groundwater ◽  
Potential Impact ◽  
The Uk

Inflow/infiltration (I/I) and infiltration/exfiltration (I/E) are interactive processes which dynamically affect sewer and groundwater performance. The incidence and condition of “critical” sewers in the UK are identified together with chemical and bacterial methods of quantifying I/E and its potential impact on sewer performance and on urban groundwater pollution. Whilst the impacts of I/E do not appear to be substantial on the basis of existing evidence, some caution is advocated in respect of long term sewer sustainability.

scholarly journals Stratigraphy and paleoecology of the Late Pliocene and Early Pleistocene in the open-cast mine Hambach (Lower Rhine Basin)

2002 ◽  
Vol 81 (2) ◽  
pp. 193-199 ◽  
Author(s):  
G. Heumann ◽  
Th. Litt
Keyword(s):  
High Energy ◽  
Climatic Conditions ◽  
Oxbow Lake ◽  
Early Pleistocene ◽  
Time Interval ◽  
Late Pliocene ◽  
Lignite Mine ◽  
Lower Rhine Basin ◽  
Open Cast ◽  
Lower Rhine

AbstractMore than 400 samples for paleobotanical and sedimentological investigations were collected from Late Pliocene and earliest Pleistocene beds in the open-cast lignite mine Hambach. They were analysed to obtain information about the paleoecology and paleoclimate of this time interval. The sedimentation type changed from a high-energy meandering fluvial system to floodplain, swamp and oxbow lake sedimentation. The typical Tertiary floral elements decreased with the onset of increasingly cooler climatic conditions and disappeared at the beginning of the Pleistocene to be substituted by a impoverished and coldadapted flora. These combined litho- and biostratigraphic investigations led to an improved and reproducible separation of Late Pliocene from Early Pleistocene deposits.

Sign in / Sign up

Export Citation Format

Share Document