Working in collaboration with WEBS, EnSo International was called in to offer a temporary treatment solution, in the form of an Ocean Professional Nitrification Plant, to test the design concept. The temporary plant was designed to take a proportion of the flow to enable EnSo / WEBS to establish the treatability of the effluent and to fine-tune the process design for a full treatment system. The 18 month trial proved successful and the roll out of a permanent system took place. Following the trial, EnSo extended the temporary treatment plant to include a 40m³ pre-aeration and settlement tank followed by four 40m³ Moving Bed Bio-Reactor (MBBR) tanks. A drum filter was also installed as tertiary treatment to remove any residual solids.
The system has proved successful on two counts: firstly costs have reduced by 95% as tankering is now significantly reduced; secondly the effluent quality is well within the consent limit.
The random filter media range selected for the pre-aeration tanks and Moving Bed Bio-Reactor (MBBR) tanks in the treatment plant was Biomarble 310 from the Warden Biomedia range. With the philosophy of increased surface area, the eco-friendly trickling filter and biological filter media are injection-moulded in recycled polypropylene with specific design features to increase the efficiency of the effluent treatment process.
Dirk Daude, Commercial Manager at EnSo International Ltd said:
“We are very pleased with the results achieved by Warden’s Biomedia. Biomarble 310 from their Biomedia range has been a great asset in the design process of our Landfill Leachate Treatment plant and has met expectations for efficiency and performance”.
| Consent limit | Result achieved | |
| BOD (mg/l) | 20 | 1 |
| Solids (mg/l) | 30 | 8 |
| Ammonia (mg/l) | 4 | 0.074 |
| Ferris (mg/l) | 0.75 | 0.496 |
Featured filter media
Biomarble 310
