Recent Progress in TiO₂-Mediated Solar Photocatalysis for Industrial Wastewater Treatment

Table 1

Typical characteristics of wastewater at different pulp and paper processes. (Table 1 is reproduced from [23]. Copyright 2004, with permission from Elsevier).

Process	Parameters					Reference
	PH	TS; (ppm)	SS (ppm)	BOD5; (ppm)	COD; (ppm)
Large mills (India)	11.0	5250	1233	983	2530	[35]
Small mills (India)	12.3	15120	4890	2628	6145	[35]
Digester house	11.6	51589	23319	13088	38588	[36]
Combined effluent	7.6	3318	2023	103	675	[36]
TMP whitewater	4.7	—	91	1090	2440	[37]
TMP whiterwater	4.7	—	105	1125	2475	[38]
Kraft mill	8.2	8260	3620	—	4112	[39]
Pulping	10	1810	256	360	—	[40]
Kraft mill (unbleached)	8.2	1200	150	175	—	[41]
Bleached pulp mill	7.5	—	1133	1566	2572	[42]
Bleaching	2.5	2285	216	140	—	[40]
Pulp and paper	7.8	4200	1400	1050	4870	[43]
News air and land paper deinking	8.3	450	400	16	78	[44]
Paper making	7.8	1844	760	561	953	[45]
Paper mill	8.7	2415	935	425	845	[46]
Paper machine	4.5	—	503	170	723	[42]
Paper machine	8.3	—	1032	240	—	[40]