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Using elevated temperatures to enhance in-situ remediation in low-permeable soils and groundwater
1997
Heron, G.
In situ air sparging: lessons learned from applications and research in the United States
1997
Johnson, P.C. (Arizona State Univ. (USA))
The presence of pesticides in groundwater in the Netherlands
1997
Beek, K. van | Puijker, L.M.
Protocols for evaluating the natural attenuation of fuel hydrocarbons and chlorinated aliphatic hydrocarbons in groundwater
1997
Wiedemeier, T.H.
Direct simulation of groundwater age [direct age dating]
1997
Engesgaard, P.
A field study to monitor processes involved in natural attenuation of hydrocarbon plumes
1997
Stauffer, T. | Libelo, E.L. | MacIntyre, W.G. | Boggs, J.M. | Stapleton, R.
Reservoir characterization of bryozoan limestone in the Fakse quarry
1997
Hvid, J.M.
Sorption of three heterocyclic compounds and their hydrocarbon analog from coal-tar contaminated water in a natural clayey till
1997
Broholm, M.M. | Broholm, K. | Arvin, E.
Diagnosis of boron, fluorine, lead, nickel and zinc toxicity in citrus plantations in villarreal, spain
1997
Aucejo, Antonio | Ferrer, José | Gabaldón, Carmen | Marzal, Paula | Seco, Aurora
In the late 1980s, citrus plantations in the area of Villarreal (Spain) showed injuries similar to those previously reported for boron and fluorine toxicity. The area was affected by the disposal of industrial wastewater, mainly from ceramic industries. Conjunctive uses of surface water, groundwater and wastewater for irrigation had taken place. A survey was conducted at 25 orchards to assess leaves and soil for their boron, fluorine, lead, nickel and zinc contents. Wastewater and groundwater were also analyzed to corroborate the presence of these pollutants. The results showed that both boron and fluorine contents were greater than those reported as excess at the most part of the orchards included in the study. Heavy metals toxicity effects were not confirmed. Boron pollution was attributed to industrial wastewater spills and fluorine contamination from atmospheric pollution.
显示更多 [+] 显示较少 [-]Cadmium mobilisation under conditions simulating anaerobic to aerobic transition in a landfill leachate-polluted aquifer
1997
Scott Altmann, R. | Bourg, Alain C. M.
The anaerobic conditions in landfill leachate-polluted aquifers can lead to trapping of many heavy metals as sulfide precipitates. In laboratory experiments with aqueous systems containing sulfidic solid phases (aquifer solids from a landfill leachate plume or amorphous FeS), cadmium previously trapped as a sulfide precipitate was released to the aqueous phase when conditions were changed from initially slightly anaerobic to aerobic. Cadmium was subsequently removed from solution either by adsorption on Fe oxyhydroxide phases or by precipitation as a carbonate mineral, groundwater pH being the major controlling variable.
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