Leachate Collection Columns

Leachate Collection Columns from ecoTech, Germany have been uniquely designed for the precise monitoring of leachate in soils in order to comply with strict Government guidelines. The Leaching columns perform saturated and unsaturated percolation tests of mineral residues to determine breakthrough curves. This equipment simplifies and reproducibly ensures the performance of column elutions.

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Advantages

  • Equipment and sets for the semi-automatic performance of column tests
  • Available as individual elution columns, semi-automatic elution units or professional, fully automated percolation units, which enable a high sample throughput
  • Simple, tool-free assembly and filling of columns
  • Stable and accurate flow even with back pressure through the filled column
  • Strong glass columns made of borosilicate glass 3.3
  • Fastener clamp to prevent leaks
  • Secure against the dry running of the pump and water jets
  • Intuitive operation and easy calibration
  • Available in dimensions to meet the requirements of a country’s regulations
  • Modular design for integration from a simple column range to an up­graded higher-quality system
  • Special editions/ accessories available

Leachate Collection Columns

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+44 (0) 1428 661 660 Call Van Walt
+64 (0)3443 5326 Call Van Walt
+27 82 754 9941

Leachate Collection Columns Equipment Options:

Applications

  • To perform manual column tests (Standard Set) in conjunction with existing laboratory equipment such as pumps, water tanks, bottles etc. through to semi-automatic Stainless steel column minimises the disturbance of samples. Optional: Junctions for e.g. Redox-electrodes and mini suction cups
  • Column base with integrated suction plate for unsaturated experiments
  • Tube made of acrylic glass. Possibility to connect junctions for mini suction cups
  • Drop weight for column packing

Components of System
High-precision diaphragm metering pump
Downstream pressure relief valve
Matched geometry of the pump head
Arrangement of the pressure holding valve with special holding device
Factors on the pump inlet:
– Tubing
– Hose length
– Tube dimensions
– Fittings
– Prefilter

Options

Standard Set
Elution column, 50 mm (see basic set)
High-precision diaphragm dosing pump
Pressure-retaining valve
Hoses
Fittings
Prefilter
Additionally Required:
Eluent reservoir
Eluate bottles (available on request)
Semi-Automatic Elution Set
Elution column
65 mm (see basic set), otherwise as above
Professional Elution Set
Elution column
100 mm (see basic set), otherwise as above

Comparison
Basic Set
Elution Columns
Extended Set
Elution Unit
Professional Set
ASPA
Simple execution of column tests
Y
Y
Y
Accurate and consistent flow rates during test run
X
Y
Y
Different saturation and test flow rates possible
X
X
Y
Fractionation
X
X
Y
Pressure monitoring
X
X
Y
Logging
X
X
Y
Automatic performance of column tests
X
X
Y

Specifications

Standard Set/Column version
ID glass tube
50 mm
65 mm
100 mm
OD glass tube
60 mm
75 mm
110 mm
Height glass tube
300 mm
320 mm
440 mm
Total height
410 mm
440 mm
610 mm

Accessories

Stainless steel column to minimise the disturbance of samples. Optional: Junctions for e.g. Redox-electrodes and mini suction cups
Column base with integrated suction plate for unsaturated experiments
Tube made of acrylic glass. Possibility to connect junctions for mini suction cups
Drop weight for column packing

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+44 (0) 1428 661 660 +64 (0)3443 5326 +27 82 754 9941