Noun
A grand division of the Invertebrata, including the sponges; -- called also Spongiae, Spongida, and Spongiozoa. The principal divisions are Calcispongiae, Keratosa or Fibrospongiae, and Silicea.
Source: Webster's dictionaryPorifera Inc. of San Leandro CA is working to on a more energy efficient process to concentrate brines and wastewater generated by geothermal power production using geothermal heat to reach higher concentrations and treat problematic waste water. Source: Internet