THE PROBLEM – Hydrolysis Tank Lining
As part of the new anaerobic digestion site, two hydrolysis tanks required a protective tank lining to guard the concrete against attack from hydrogen sulphide and biogenic sulphuric acid.
THE SOLUTION – Hydrolysis Tank Lining
We proposed the application of Remmers proven Epoxy Universal crack bridging tank lining system.
Initially the concrete was prepared by method of high pressure washing to remove laitance and contaminants – essential for ensuring excellent adhesion of the tank lining system. Once prepared a fairing coat of Remmers Sulfatex Grout was applied to all surfaces to be coated to fill blow holes in the concrete. Failure to fill these imperfections in the tank structure would result in unprotected areas in the tank lining which would result in premature tank lining failure.
The grout could was followed by the application of Remmers Epoxy MT100 damp tolerant epoxy primer. This ensures excellent adhesion to the substrate which is of critical importance for any tank lining. Once cured Remmers Epoxy Universal was applied throughout the tank by method of airless spray. This excellent material can crack bridge up to 0.2mm which is beyond the expected cracking of the concrete.
Finally pipe brackets were sealed using a chemical resistant polyurethane jointing compound and the coating tested using a DC holiday spark tester. This checks for pin holes and where found they can be touched in by brush. This is perhaps the most important stage of the lining process as a single pin hole in an aggressive environment can lead to the failure of the tank lining.