Treatment of Municipal Wastewater in a Fixed Aerated Bed: Use of Natural Fibrous Materials

Table 1

Characteristics of Coir fibre and Areca husk.

	Coir fibre	Areca husk
Cellulose	46%	50–60%
Lignin	44.6%	7–8%
Moisture	4–5%	4–5%
Hemi cellulose	0.25%	20–30%
Ash	3%	1–3%