An Effective Biomass for the Adsorption of Methylene Blue Dye and Treatment of River Water

Table 3

Adsorption effect of Neolamarckia cadamba leaves on water quality parameters of three locations of Yamuna River.

Parameters	Before adsorption			After adsorption
1^st sampling	Katghar	Chachar	Kareli	Katghar	% decrease	Chachar	% decrease	Kareli	% decrease
TDS (mg/L)	332	319	332	264	20.48	289	9.40	242	27.10
Conductivity	0.976	0.988	1.038	0.762	21.9	0.862	12.75	0.838	19.26
Hardness (mg/L)	250	200	200	35	86	25	87.5	25	87.5
COD (mg/L)	144	36	60	50	65.2	15	58.3	20	66.6
2^nd sampling	Katghar	Chachar	Kareli	Katghar	% decrease	Chachar	% decrease	Kareli	% decrease
TDS (mg/L)	463	455	463	397	14.25	382	16.04	397	8.65
Conductivity	1.356	1.324	1.304	1.192	12.09	1.15	13.11	1.20	7.97
Hardness (mg/L)	225	160	230	30	86.6	25	84.3	25	89.1
COD (mg/L)	120	124	122	80	33.3	60	51.6	65	46.7