id	keyword
american_scientific_journal-1792	sand
american_scientific_journal-1792	filter
american_scientific_journal-1792	water
american_scientific_journal-1792	engineering
american_scientific_journal-1792	river
american_scientific_journal-1792	volume
american_scientific_journal-1792	technology
american_scientific_journal-1792	sciences
american_scientific_journal-1792	asrjets
american_scientific_journal-1792	journal
american_scientific_journal-1792	research
american_scientific_journal-1792	american
american_scientific_journal-1792	media
american_scientific_journal-1792	scientific
american_scientific_journal-1792	filtration
american_scientific_journal-1792	turbidity
american_scientific_journal-1792	ntu