Polypropylene provides structural benefits for wastewater treatment
GEA Heat Exchangers
BIOdek polypropylene (PP) fill packs (photo) for wastewater treatment are lighter, more stable and more resistant to erosion than alternatives with the same thickness made of polyvinyl chloride (PVC), according to the manufacturer. The PP sheets are thermo-welded, with no need for the use of solvents in production, whereas PVC bonding requires potentially polluting chemicals. Disposal of used fill packs is straightforward, since PP emits no toxic substances when incinerated under controlled conditions. Due to PP’s stability, strength and elasticity, trickling filters made of PP fills provide a surface that is robust enough for service staff to walk over without damaging the structure. Booth 2240 — GEA Heat Exchangers, Bochum, Germany