Table 1.

Removal of COD and TOC from wastewater.

COD removal (%)
	Without supplement		Organic nitrogen supplement (Yeast)		Inorganic nitrogen supplement (Ammonium Sulfate)
	Sample I	Sample II	Sample I	Sample II	Sample I	Sample II
Free AKG1	61.11	34.14	69.44	51.21	66.66	41.46
Free AKG2	41.66	61.53	55.55	69.23	47.22	64.10
Co-culture	83.78	70	89.18	79.5	86.48	72.5
Immobilized AKG1	24.32	10.25	24.12	10.02	24.40	10.25
Immobilized AKG2	10.81	10.25	10.50	10.33	10.10	10.75
TOC removal (%)
Free AKG1	57.12	30.00	65.45	48.00	63.51	35.00
Free AKG2	34.68	41.59	45.52	55.99	39.77	45.00
Co-culture	83.45	54.00	84.54	75.95	77.28	70.00
Immobilized AKG1	18.75	13.30	—	—	—	—
Immobilized AKG2	8.29	11.80	—	—	—	—