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- Title
Influence of hydrophile-lipophile balance and sodium tripolyphosphate on the properties of biological deinked pulps.
- Authors
Mayeli, N.; Talaeipour, M.
- Abstract
The benefits of bio-deinking of waste paper are investigated in this study. Enzymatic modification of mixed office waste paper and old magazine pulps was performed at two temperatures, 20 and 50 °C. Nonionic surfactant with different hydrophile-lipophile balance values and sodium tripolyphosphate was used as the deinking agent. The deinking process was conducted for pulps with and without enzymatic treatment. The results show that, for mixed office waste paper and old magazine pulps, the highest strength properties are achieved using lower hydrophile-lipophile balance at 20 and 50 °C, respectively, while using higher hydrophile-lipophile balance has a significant influence on the optical properties at 50 °C. Further, the results show in the presence of sodium tripolyphosphate, the optical properties of treated pulps, especially old magazine pulp significantly improved at 20 °C ( ESST system). For mixed office waste paper, the optimum values of burst, tear and tensile indices, folding endurance, E-MOD, tensile energy absorption and elongation are 2.97 (kPa m/g), 7.68 (mN m/g), 93.47 (N m/g), 13, 8024 (GPa), 100.16 (J/m) and 2.53 (%), respectively. Moreover, the results from measuring optical properties of handsheets show that the optimum values of brightness, dirt count, dirt area and deinking efficiency are 44.72 (%), 11, 0.221 (mm) and 78.07 (%) correspondingly, while for old magazine, the formers are 2.35 (kPa m/g), 6.77 (mN m/g), 77.77 (N m/g), 9, 6199 (GPa), 72.61 (J/m) and 2.37 (%) and the latters are 60.93 (%), 1, 0.005 (mm) and 99.52 (%), respectively.
- Subjects
HYDROPHILE-lipophile balance; SODIUM tripolyphosphate; DEINKING (Waste paper); TEMPERATURE effect; OPTICAL properties; PAPER pulp
- Publication
International Journal of Environmental Science & Technology (IJEST), 2015, Vol 12, Issue 11, p3587
- ISSN
1735-1472
- Publication type
Article
- DOI
10.1007/s13762-015-0794-1