Assessing the Adsorptive and Photodegradative Efficiencies of ZSM-11 Synthesized from Rice Husk Ash

Table 2

The percentage reduction in the concentration of water samples from the communities.

Parameter	Units	Abura		Kwaprow		Apewosika		Amamoma		Ebubonko		Amoyaw		GSA values	WHO values
		Before	After	Before	After	Before	After	Before	After	Before	After	Before	After
Nitrate content	mgL^−1	23.7	15	50.5	20	54.4	20	55.7	22	28.3	17	126	30	45–50	50
Phosphate content	mgL^−1	0.69	0.03	0.5	0.04	0.67	0.05	0.72	0.05	1.03	0.04	0.64	0.04	0.005–0.05	0.005–0.05