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Hydrologiq has also been developing
systems of evaporative disposal that do not involve spray systems.
In-cell evaporation
efficiency can be enhanced by increasing the evaporative surface area in
contact with the airflow (UK Patent No 240681, International Patents
Pending). The ‘Lamina’ method uses horizontal layers of water absorbing
mats below a paved surface to detain water that has percolated through
the pavement. The lamina mats dry out by evaporation and are then
recharged by subsequent rainfall and infiltration from the permeable
surface above. |
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Air drawn through the
storage cell evaporates water from Lamina and basewater |
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Two years of research and trials have
established that the annual trend for in-cell evaporation, whilst
highest in summer, is strong in the spring and autumn and still
significant in winter.
Experimental trials have shown that the system
of water retentive geotextiles in a ventilated storage cell can dispose
of an average of 40% of runoff over a year.
The next step will be to use the system in a
full size trial scheme, to evaluate the performance of the system on a
larger scale.
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More information
on the lamina system and the research is described in the
World Environmental and Water Congress Conference Paper
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To find out more
Contact us
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Hydrologiq have also developed and patented
other unique pollution protection systems including a fire fighting foam
testing bay and a floating reed bed and aeration pond system. |
