Iron hydrous oxides(HFO) was applied to remove tetracycline(TC) from aqueous solutions.The synthesized HFO was characterized by XRD,BET and FTIR.The removal efficiency of TC and the effects of system parameters were investigated.Experimental results showed that HFO possessed good removal efficiency of TC,in the experiment,the TC removal efficiency could reach 92.3% after 18 hours at the dosage adding of 10g/L HFO at pH 6.5.The concentration decrease of TC is more effective in acidic and neutral pH.When pH v...