id	keyword
american_scientific_journal-2228	adsorption
american_scientific_journal-2228	bentonite
american_scientific_journal-2228	lime
american_scientific_journal-2228	model
american_scientific_journal-2228	nitrate
american_scientific_journal-2228	𝑪𝑪𝑪𝑪
american_scientific_journal-2228	solution
american_scientific_journal-2228	technology