Development and comparison of membrane separation schemes for byproduct recovery from Egyptian rice straw black liquor

Bulletin of the National Research Centre

Table 2 Stream’s quantities and composition in the developed schemes

Unit	Stream	Quantity (m³/d)	Composition (%) (w/v)
Unit	Stream	Quantity (m³/d)	C/CH	HC/HCH	Lignin	Silica
UF	Black liquor	1000	0.60	1.48	1.05	0.61
	UF permeate	800	0.30	0.74	0.11	0.60
	UF concentrate	200	1.81	4.45	4.85	0.63
NF1	NF1 permeate	480	0.03	0.07	0.01	0.57
NF1	NF1 concentrate	320	0.71	1.74	0.25	0.65
TVC1	TVC1 condensate	256
TVC1	TVC1 liquor	64	3.54	8.71	1.24	3.25
NF2	NF2 permeate	288	0.00	0.01	0.00	0.06
NF2	NF2 concentrate	192	0.07	0.17	0.02	1.35
TVC2	TVC2 condensate	154
TVC2	TVC2 liquor	38	0.35	0.87	0.12	6.74
PF1	Filtrate 1	170	2.02	4.97	0.57	0.67
PF1	Slurry 1	30	0.60	1.48	29.09	0.42
PF2	Filtrate 2	199	0.43	1.06	0.13	1.51
PF2	Slurry 2	35	13.81	33.97	4.27	0.64
MF (I)	MF (I) permeate	577	0.16	0.41	0.05	0.05
MF (I)	MF (I) concentrate	102	0.05	0.12	0.02	5.36
MF (II)	MF (II) permeate	202	0.47	1.15	0.15	0.14
MF (II)	MF (II) concentrate	36	0.14	0.34	0.04	14.90