... Waarderpolder. Water Research, Vol. 34, pp. 84 6 85 8. Britton, A., Prasad, R., Balzer B., Cubbage, L., (2009). Pilot testing and economic evaluation of struvite recovery from dewatering centrate at HRSD’s ... insulated 0.70-0 .88 4” thick and covered, but insulated with 1” insulating board 0.21-0. 28 9” thick, not insulated 0.53-0.63 Fixed steel cover (1/4 “ thick) 0.70-0.95 Table 5. Overall heat ... introducing treatment and management. Handbooks of UK wastewater practice. The Chartered Institution of Water and Environmental Management. ISBN 1 87 0752 23 6. Bitton, G., (1994). Wastewater Microbiology....