6[59]Morris,M.and Herbert,R.The design and performance of a vertical flow reed bed for the treatment of high ammonia,low suspended solids organic effluents[J].Water Science and Technology,1997,35(5):197～204.
7[60]Narkis,N.et al.Denitrification at various carbon to nitrogen ratios[J].Water Research,1979,13:93～98.
8[61]Newman,J.M.et al.Seasonal performance of a wetland constructed to process dairy milkhouse wastewater in Connecticut[J].Ecological Engineering,2000,14:181～198.
9[62]Nguyen,L.M.Organic matter composition,microbial biomass and microbial activity in gravel-bed constructed wetlands treating farm dairy wastewaters[J].Ecological Engineering,2000,16:199～221.
10[63]Panswad,T.and Chavalparit,O.Water quality and occurrence of protozoa and metazoa in two constructed wetlands treating different wastewaters in Thailand[J].Water Science and Technology,1997,36(12):183～188.
