Strategies for characterizing compositions of industrial pulp and paper sludge

International Conference on Chemistry and Material Science 2017

化学;材料科学

Aslanzadeh, Solmaz^1 ; Kemal, Rahmat A.^1 ; Pribowo, Amadeus Y.^1

Department of Bio Technology, School of Life Sciences, Indonesia International Institute for Life Sciences, Pulomas Barat Kav 88, Jakarta

13210, Indonesia^1

关键词: Acid concentrations;    Acid pretreatment;    Chemical compositions;    Environmental challenges;    Feasible solution;    Pulp and paper;    Pulp and paper industry;    Sludge samples;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012037/pdf
DOI  :  10.1088/1757-899X/299/1/012037

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The large quantities of waste sludge produced by the pulp and paper industry present significant environmental challenges. In order to minimize the amounts of waste, the pulp sludge should be utilized for productive applications. In order to find feasible solutions, the sludge need to be characterized. In this study, the potential of using acid pretreatment and ashing method to determine the chemical compositions of the sludge is investigated. This study shows that acid pretreatment could be used to dissolve and determine the composition of CaCO3in the pulp sludge. CaCO3removal also facilitates the measurement of fiber and ash (clay) contents by using the ashing method. The optimum acid concentration used to completely dissolve CaCO3was determined using a titration method. Using this method, the measurement of the chemical composition of the sludge sample revealed that it consisted primarily of CaCO3(55% w/w), clay (25%, w/w), and fibers (18%, w/w). Based on these chemical compositions, potential utilization for the sludge could be determined.