Suitability of nutrients removal from brewery wastewater using a hydroponic technology with Typha latifolia

BMC Biotechnology

Table 5 ANOVA and t-Test table for comparison of nutrient removal by the hydroponic treatment units planted with T. latifolia and the control unit in terms of statistical significance

ANOVA
TKN
Source of Variation		SS	df	MS	F	Interference	P-value
Between (Inlet and control) and (Inlet and HUs)		1892.84	2	946.4	25.34	S^a	P < 0.001
Between (HU1 andHU2), (HU1 and HU3) and (HU2 and HU3)		16.6	2	8.3	0.36	–	P > 0.70
NH4 + -N
Source of Variation		SS	df	MS	F	Interference	P-value
Between (Inlet and control) and (Inlet and HUs)		578.99	2	289.5	31.61	S	P < 0.001
Between (HU1 andHU2), (HU1 and HU3) and (HU2 and HU3)		17.08	2	8.54	3.59	–	P > 0.05
NO3--N
Source of Variation		SS	df	MS	F	Interference	P-value
Between (Inlet and control) and (Inlet and HUs)		153.36	2	76.68	11.65	S	P < 0.001
Between (HU1 andHU2), (HU1 and HU3) and (HU2 and HU3)		6.06	2	3.03	0.61	–	P > 0.05
PO4–3-P
Source of Variation		SS	df	MS	F	Interference	P-value
Between (Inlet and control) and (Inlet and HUs)		261.05	2	130.5	9.97	S	P < 0.001
Between (HU1 andHU2), (HU1 and HU3) and (HU2 and HU3)		4.51	2	2.26	0.29	–	P > 0.05
t-Test
nutrients treated	TKN	NH4+ − N		NO3- - N		PO4–3- P
Treatment units	CTRL HUS	CTRL HUS		CTRL HUS		CTRL	HUS
Mean	19.77 10.13	18 11.14		9.64 6.39		9.86	6.25
Variance	24.56 15.91	8.33 0.47		6.37 3.63		6.62	7.52
P value	P < 0.01	P < 0.05		P < 0.05		P < 0.05
Interference	S	S		─		─

ISSN: 1472-6750