scholarly journals Assessment of the Implications of Coal Post-mining Impact on Surface Water at Abandoned Okpara mine in Enugu State

2021 ◽  
2021 ◽  
pp. 33-37
Author(s):  
Eke B.L. ◽  
Essaghah A.E. ◽  
Okechukwu C.N.

This study examined the effect of housing development on surface water quality in Enugu urban. The research design used for this study was experimental. A total of 11 samples of water were collected from the various selected site locations within the study area, in the three local government areas of Enugu urban. The water sample was collected with acid-washed and open dried polyethylene bottles, the samples were labeled according to their various rivers and streams, the polyethylene bottles were corked and were kept in ice-filled boxes, transported to PRODA for analysis. The major findings of the study showed that housing development in Enugu urban has a negative significant impact on water quality because Okwuosa river has an Organic matter level of 4.19 while WHO Limit is 2,9, therefore this aspect should be monitored for Okwuosa river in Enugu South. Other findings were Compared with the WHO standard and it showed that water quality deteriorates as housing development progresses. It is therefore the recommendation of the study that the housing authorities in Enugu state should institute measures to ensure that housing development does not compromise environmental quality and house owners and indeed all residents should be properly sensitized through environmental education on the dangers of abusing environmental standards.


Author(s):  
John M. Wehrung ◽  
Richard J. Harniman

Water tables in aquifer regions of the southwest United States are dropping off at a rate which is greater than can be replaced by natural means. It is estimated that by 1985 wells will run dry in this region unless adequate artificial recharging can be accomplished. Recharging with surface water is limited by the plugging of permeable rock formations underground by clay particles and organic debris.A controlled study was initiated in which sand grains were used as the rock formation and water with known clay concentrations as the recharge media. The plugging mechanism was investigated by direct observation in the SEM of frozen hydrated sand samples from selected depths.


2019 ◽  
Vol 38 (2) ◽  
pp. 200-220
Author(s):  
SOMNATH SAHA ◽  
◽  
SUKANTA KUMAR SAHA ◽  
TATHAGATA GHOSH ◽  
ROLEE KANCHAN ◽  
...  

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