3Yoshihiro S, Tohiroh M, Hiroyuki N ,et al. Performance of a closed recirculating system with foam separation, nitrification and denituification units for intensive culture of eel: towards zero emission [J]. Aquacultural Engineering, 2003(29): 165-182
4Thomas L,Phil W. Denituification of aquaculture wastewater using aguicuhural by-products as biofiher media [Z].http://www4.ncsu.edu/-wbslili/NCSUword.htm, 2005
5Piamsk M, Tanya P, Pakitsin S, et al.Design and function of a closed, recirculating seawater with denitrification for the culture of black tiger shrimp broodstock[J]. Aquacultural Engineering, 2001 (25) : 35-49
