['Several', 'inorganic', 'flocculating', 'agents', ',', 'including', 'FeSO4', ',', 'Al2(SO4)3', ',', 'FeCl3', 'and', 'an', 'organic', 'coagulant', 'aid', 'PAM', ',', 'were', 'used', 'to', 'treat', 'the', 'wastewater', 'from', 'domestic', 'anima', 'and', 'poultry', 'breeding', 'in', 'this', 'paper', '.']