Wastewater treatment plants Physical (mechanical) filtration
€193.00
Devices to prevent pollution by backflow of potable water. Air gap with circular overflow (restricted). Family A, type F
€165.00
Devices to prevent pollution by backflow of potable water. Air gaps with minimum circular overflow (verified by test or measurement). Family A, type G
Wastewater treatment plants Measurement of the oxygen transfer in clean water aeration tanks activated sludge
Water quality. Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivatization
€269.00
Water quality. Determination of suspended solids. Method by filtration through glass fibre filters
Wastewater treatment plants Disinfection
Wastewater treatment plants Chemical treatment. Treatment of wastewater by precipitation/flocculation
Devices to prevent pollution by backflow of potable water. Air gap with submerged feed incorporating air inlet plus overflow. Family A, type C
Wastewater treatment plants Control and automation
Devices to prevent pollution by backflow of potable water. Mechanical disconnector, hydraulic actuated. Family G, type B
Devices to prevent pollution by backflow of potable water. Mechanical disconnector, direct actuated. Family G, type A
Aggregates. Single-sized aggregates for use as a medium in biological percolating filters
Water quality. Determination of ammonium nitrogen. Method by flow analysis (CFA and FIA) and spectrometric detection
Water quality. Guidance standard for the sampling of zooplankton from standing waters
