1Lahav O, Green M. Ammonium removal using ion exchanged and biological regeneration[ J ]. Water Research, 1998,32 (7):2 019- 2 028.
2Drizo A,Frost C A,Grace J, et al. Physico-chemical screening of phosphate-removing substrates for use in constructed wetland systems [ J ]. Water Research, 1999,33 (17) : 3 595 - 3 032.
3Sakadevan K, Bavor H J.Phosphate adsorption characteristics of softs,slags and zeolite to be used as subetrates in constructed wetland systems[J]. Water Research, 1998,32(2) : 393 - 399.