What is BS EN 14405– Characterization of waste about?
BS EN 14405 is applicable for determining the leaching behaviour of inorganic and non-volatile organic substances from granular waste. The waste body is subjected to percolation with water as a function of the liquid to solid ratio under specified percolation conditions. The waste is leached under hydraulically dynamic conditions.
This test method produces eluates, which can subsequently be characterized by physical, chemical and ecotoxicological methods according to existing standard methods.
NOTE 1 The mentioned specified percolation conditions are arbitrary and are not necessarily simulating a specific scenario.
NOTE 2 Waste materials that show a saturated hydraulic conductivity between 10-7 m/s and 10-8 m/s can be subjected to this test, but it can be difficult to maintain the imposed flow rate. If a waste shows a saturated hydraulic conductivity below 10-8 m/s, the test will preferably not be carried out (See C.5 for a definition of ‘hydraulic conductivity’).
NOTE 3 This procedure is generally not applicable to biologically degrading materials and materials reacting with the leachant, leading, for example, to excessive gas emission or excessive heat release.
NOTE 4 This procedure is applicable to materials showing solidification in the column if the final hydraulic conductivity is within the specified range (see NOTE 2).
NOTE 5 It is not always possible to optimise test conditions simultaneously for inorganic and non-volatile organic substances and optimum test conditions may also vary between different groups of nonvolatile organic substances.
Test requirements for non-volatile organic substances are generally more stringent than those for inorganic constituents. The test conditions suitable for measuring the release of non-volatile organic substances will generally also apply to inorganic substances.
NOTE 6 For ecotoxicological testing, eluates representing the release of both inorganic and non-volatile organic substances are needed. In this standard ecotoxicological testing is meant to include also genotoxicological testing.
NOTE 7 Validation data for non-volatile organic substances are not currently available, but will be added on revision when available.
Who is BS EN 14405– Characterization of waste for?
BS EN 14405 on water quality is relevant to:
- Chemical Engineer
- Researchers and scientists
- Microbiologists
- Any entity responsible for disposing waste
Why should you use BS EN 14405– Characterization of waste?
Up-flow column percolation tests are used in laboratories to assess the leaching behavior of hazardous substances from contaminated soil.
BS EN 14405 specifies an up-flow percolation test to determine the leaching behavior of inorganic and non-volatile organic substances from granular waste materials under standardized percolation conditions.
BS EN 14405 benefits occupational biologists and researchers in determining the leaching behavior of inorganic and non-volatile organic substances from granular waste materials.
You can determine the leaching behavior of waste from granular waste by applying BS EN 14405, which can lead to better decomposition of waste and help protect the environment.
