Characterization of waste. Leaching behaviour test for basic characterization. Dynamic monolithic leaching test with periodic leachant renewal, under fixed conditions

Accumulation of dredged sediment has raised environmental concern in various countries. Recycling of sediment into bricks is a viable solution to the environmental pollution. Concerning to the utilization of sediment in bricks, this study reviews the needs of characterization on sediment and methods of producing sediment bricks. Particle size distribution was found to be the key criteria for characterization of sediment. Sizes of particles determined the function of the sediments in the bricks. In spite of that, leachability of heavy metals is another important aspect for contaminated sediment. Cementing bricks used cementing materials as the stabilization agent to the heavy metals. It is necessary to conduct leaching test for the end-product of the sediment to ensure the heavy metals leached are within the regulatory limits. In conclusion, method of producing sediment bricks may vary due to the various characteristics of sediment for a promising environmental friendly production.

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The Leaching Behaviour of the Swedish KBS-Glasses ABS 39 and ABS 41

MRS Proceedings ◽

10.1557/proc-6-107 ◽

1981 ◽

Vol 6 ◽

Author(s):

Hans-Peter Hermansson ◽

Hilbert Christensen ◽

Lars Werme ◽

Kaija Ollila ◽

Rune Lundqwist

Keyword(s):

Test Procedure ◽

Short Description ◽

Corrosion Products ◽

In Situ Tests ◽

Glass Corrosion ◽

Simulated Waste ◽

Leaching Behaviour ◽

Corrosion Investigation

ABSTRACTThe planned Swedish KBS glass corrosion investigation program comprises experiments with inactive glasses containing simulated waste, prolonged in-situ tests, the characterization of corrosion products, immiscibility studies, and corrosion experiments with “hot” glass.This presentation gives a short description of the entire program. It focuses thereafter on some recent leaching results with the inactive KBS glass qualities ABS 39 and ABS 41, which were leached in a manner similar to the PNL MCC–1 test procedure.

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