Enzymatic deinking of mixed office wastepaper | |
| Author | La Hien Luong |
| Call Number | AIT Thesis no.PP-12-02 |
| Subject(s) | Waste paper--Recycling Papermaking--Chemistry |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Pulp and Paper Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Enzymatic deinking was taken with mixed office wastepaper (MOW) as a raw material. The optimization of deinking was carried out with various parameters such as flotation time, surfactant dose, reaction time with enzyme, and enzyme dose. Handsheets were made after flotation stage, then ERIC, brightness, opacity and strength properties were measured. After flotation units, the yield was also determined. Three different methods (enzymatic deinking, chemical deinking, and enzyme/chemical combination) for deinking of MOW were observed and compare together. In this study, the results have shown that enzymatic deinking is able to achieve better overall results compared to a conventional chemical deinking process and enzyme/chemical combination deinking with mixed office wastepaper as a raw material. The results also indicated that the chemical demand can be reduced 20%, but still retains several properties suchas optical, strength when compared enzyme/chemical combination with chemical deinking. |
| Year | 2012 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Pulp and Paper Technology (PP) |
| Chairperson(s) | Nazhad, Mousa M. |
| Examination Committee(s) | Shippin, Oleg;Salam, P. Abdul |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2012 |