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Submerged membrane technology tackles biomass retention and solids-liquid separation with the collateral advantage of providing energy.
About $430,000 and technical assistance will be provided to eight National Estuary Programs.
Videos from the AWWA ACE09 show floor.
Scientists say the government should phase out direct burning of coal chunks.
A federal plant protection program strengthens its front-line response to growing ecological threats amid climate change and rising global trade.
