Flocculation Tanks go to Libya

9 Aug 2013

Monmouth based Siltbuster Process Solutions (SPS) has recently successfully completed the hire and sale to GE water of Flocculation Tanks, D100 Dissolved Air Flotation Units and Containerised Dosing Systems delivered as a temporary treatment system for GE Water to treat some 400m3/hr of sea water for a large industrial production facility in Libya. An essential requirement for re-commencing operations at the facility was a reliable supply of the right quality water. The owners engaged GE Water to provide a temporary treatment system whist the permanent treatment system was being progressed (also by GE). The temporary system consisted of containerised seawater Multi-Media Filters (MMF) and Reverse Osmosis (RO) systems, and GE engaged SPS to supply the DAF units and associated equipment to protect its MMF’s and RO systems from excessive solids.

With limited water quality data available SPS’s Sales Manager Clwyd Jones concluded that flotation rather than sedimentation would provide the most robust solution. With mobility and ease of site establishment a key consideration, the packaged equipment was despatched in two phases. Importantly as both the reaction tank and the DAF unit are built to exactly the same dimensions as a high cube shipping container the equipment could be easily transported to site by a standard 40ft lorry and container ship.

For expedience and as the project was initially short term, we decided to build the reaction tanks and DAF unit from mild steel and use an internal high build epoxy glass flake paint for corrosion protection. However because of the high chloride concentrations in the water we were concerned that any damage to the paint system during transport and installation collect affect the long term integrity of the tanks. So we took the unusual step of supplementing this with cathodic protection comments Jones.

The units were assembled and tested at our yard before despatch and by adopting a “plug and play” approach site installation time was reduced from weeks to matter of days, with our engineer only needing to attend the site only to assist with final stages of assembly and to commission. The biggest worry on this project was the In Country safety of our field engineer being able to the test the installation prior to departure and only needing to make the final connections on site was critical comments Jones. In fact the installation and commissioning of the first system delivered to site went so well that the Client commissioned the second system without us visiting site.

Although initially provided as a hire solution, the system was purchased and continues to operate on site, providing security of supply in the event that delays are experienced in the completion and commissioning of the permanent solution.