integrated coastal zone management project west ... - Iczmpwb.org

190and 2 large size (14000 litre) tanks. Another 8 small tanks are for fresh water fishes exhibits.The aquarium has three divisions of exhibits i.e. the species of conservation importance, thelocal & ornamental species and freshwater species. The water intake and filtration set up inthe present aquarium is not sufficient and most of the pumps meant for water circulationsystem are defective. Due to these defects the fishes in the aquarium do not survive for thelonger periods and mortality occurs within 4 to 5 days.241. The modernization of Marine Aquarium and Research Centre project is proposedwith following two aims: Development of Coastal Marine Museum exhibits and interpretation centre for publicoutreach and education on coastal and marine life and To upgrade the existing aquarium with the best filtration system that meets therequirements of marine aquarium and equipping the tanks with appropriate maronespecies and other ancillary facilities242. The modernization of the filtration system will be accomplished with the followingnew proposed set up:The existing filtration system of the aquarium will be centralized and made semiclosed.Water exchange will be done at the rate of 20% for every 4 days. The exchangedwater can be recycled; this will give best results, because the water chemistry willremain the same.R.O. unit is to be included in the system which will produce water with very lowTDS (Total Dissolved Solids). This can be used for regular topping up.Two U.V. sterilizers, one at the multi bed pressure filter and other at the dischargearea of the storage tank, are to be installed. Inclusion of U.V. sterilizer will makewater recycling more effective and will give pathogen free water.Micron filters can also be included before both the U.V. sterilizer to avoid suspendedparticles entering the effectiveness of U.V.FLOW CHART OF THE CENTRAL FILTRATION SYSTEM[Water Recycling System]