Assessment of soil and water contamination around an ash-disposal site: a case study from the Seyitömer coal-fired power plant in western Turkey

The soil and water contamination by metals from hazardous waste confined with urban solid wastes, highlights the importance of enhance the monitoring of disposal sites once closed. It is common to fail to comply with the regulations on their location, operation and post-closure, and located in areas that affect the environment and the health of the population. In the closed dump of Morelia, contamination of the soil and groundwater by leachates with heavy metals in the water from supply wells has been reported. The objective of this study was to determine the presence of heavy metals and arsenic in the confined wastes of the Morelia closed dump, in order to diagnose the affectation from the contaminants. Composition, degradation status and the presence of heavy metals were analyzed in samples of confined solid wastes from eight wells with different age of confinement. The results of this study ratify the contamination of the leachates of the site and are associated with the contamination of the water for human consumption in the area. The actual regulation does not apply in the case of urban solid waste, so it is crucial to regulate monitoring and management for correct decision-making during post-closure management.

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Soil and Water Contamination by Heavy Metals

Water Encyclopedia ◽

10.1002/047147844x.gw1036 ◽

2005 ◽

Author(s):

Kristofor R. Brye ◽

Kenneth F. Steele

Keyword(s):

Heavy Metals ◽

Water Contamination ◽

Soil And Water Contamination ◽

Soil And Water

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Interactions of pesticides with clays and layered double hydroxides: a review

Clay Minerals ◽

10.1180/claymin.2008.043.2.01 ◽

2008 ◽

Vol 43 (2) ◽

pp. 155-175 ◽

Cited By ~ 82

Author(s):

J. Cornejo ◽

R. Celis ◽

I. Pavlovic ◽

M. A. Ulibarri

Keyword(s):

Clay Minerals ◽

Layered Double Hydroxides ◽

Water Contamination ◽

Natural Ecosystems ◽

Surface Areas ◽

Natural Clays ◽

Double Hydroxides ◽

Soil And Water Contamination ◽

Adsorbent Materials ◽

Soil And Water

AbstractThe increasing presence of pesticides in natural ecosystems has stimulated research to look for improved adsorbent materials which can be used to remediate and prevent soil and water contamination by these compounds. Among the different materials that have been assayed as adsorbents of pesticides are natural clay minerals, particularly 2:1 phyllosilicates and their structurally complementary synthetic analogues layered double hydroxides (LDHs). The great interest in natural clays and LDHs as adsorbent materials is mainly related to the large specific surface areas associated with their layered structure, the ease with which they are obtained or synthesized, and the possibility of modifying their surfaces to increase their affinity for specific adsorbates. This review summarizes the adsorptive properties of natural clays and LDHs for pesticides and related organic compounds. Particular emphasis is given to the surface modification of clay minerals and LDHs with organic ions as a strategy to improve the efficiency of these materials as pesticide adsorbents. Potential applications of unmodified and modified clays and LDHs as adsorbents to prevent and remediate soil and water contamination by pesticides are also discussed.

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