TITLE:
Bentonite Adsorption & Coagulation Treatment of Recycled Fiber Pulping Wastewater
AUTHORS:
Tingzhi Liu, Kaiyang Zheng, Defa Wang, Shuai Li, Haoyu Wang
KEYWORDS:
Recycled Fiber Pulp; Wastewater; Stickies, Bentonite; Coagulation
JOURNAL NAME:
Engineering,
Vol.5 No.10B,
November
1,
2013
ABSTRACT: A bentonite & PAM particle flocculation system was
employed in recycled fiber pulp wastewater treatment in this paper. The optimum
conditions of the adsorption & coagulation treatment was explored and
optimized and effects of the treatment were focused on, especially stickies
substances removal. Under the optimal conditions, the removal of MTBE extract
and cationic demand reached 91.26% and 86.93%, and the average particle size in
the treated wastewater pollutants is reduced from 40.95μm to 0.5μm. In
this treatment the removal of CODcr, turbidity, SS and color were 89.67%,
99.56%, 95.58% and 93.08%, respectively. The results showed that the particle
flocculation system was effective for the treatment of recycled fiber pulp
wastewater, especially for controlling the stickies.