Table 1.

Details of experimental set-up.

Mesocosm	Plant	Mass Composition in Litter Bags (g) *				Bottom Soil Layer (g) *	Simulated Wastewater (L) *
		Biomass	Sulfur	Soil	Gravel **
HSHAD	H. verticillata	10.0	1.9	42.9	28.6	57.1	2.0
HHD	H. verticillata	10.0	0	42.9	28.6	57.1	2.0
Control	--	0	0	42.9	28.6	57.1	2.0

* The values were taken from the duplicate samples. ** The gravel was used to sink the litter bags into the surface of bottom soil layer. HSHAD (Hydrilla verticillata–sulfur-based heterotrophic and autotrophic denitrification, HHD (H. verticillata heterotrophic denitrification).