Review of techniques available for the isolation of sediment pore water in mining areas / by Jose M. Azcue & Fernando Rosa.: En13-5/95-13E-PDF

"Negligible chemical changes in sediments or tailings often cause variations in the quality of the sediment pore water. Sediment pore water chemistry can help to explain and predict diagenetic processes many in sediments. However, the technique involved in the collection of the pore water can affect the interpretation of redox processes, and concentration profiles and fluxes of contaminants at the sediment/water interface. Many factors, such as objectives of the study, requirements of special equipment, and time and cost constraints, should be considered before selecting the technique for the sampling of sediment pore water. The different techniques for separation of pore water from sediments, such as centrifugation, squeezing, dialysis, direct suction, and equipment available for in situ pore water sampling will be discussed in this paper. We emphasize that due to its complexity, sampling of sediment pore water is not suitable in monitoring programs, and should only be carried out by personnel experienced with the sampling methods"--Abstract.

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