Shell-based biofiltration system to clean water, namely, biochemical reactors featuring recycled seashells media substrate treated with micro- organisms that provides for biofilm growth and for chemical reactions for use in the treatment of wastewater

'base':3 'biochem':10 'biofilm':24 'biofiltr':4 'chemic':28 'clean':7 'featur':12 'growth':25 'media':15 'micro':19 'name':9 'organ':20 'provid':22 'reaction':29 'reactor':11 'recycl':13 'seashel':14 'shell':2 'shell-bas':1 'substrat':16 'system':5 'treat':17 'treatment':34 'use':31 'wastewat':36 'water':8

PURASHELL

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