Innovations in papermaking: an LCA of printing and writing paper from conventional and high yield pulp.

Pulp and paper industry is facing challenges such as resource scarcity and greenhouse gas (GHG) emissions. The objective of this research is to investigate whether the use of new coatings (micro or nano TiO(2)) and different pulp types could bring savings in wood, energy, GHG emissions and other environmental impacts in comparison with conventional printing and writing paper. We studied three types of pulp, namely i) unbleached virgin kraft pulp, ii) recovered fiber, and iii) high yield virgin chemithermo-mechanical pulp (CTMP). A life cycle assessment (LCA) was conducted from cradle to grave. Applying attributional modeling, we found that wood savings amount to 60% for the nanoparticle coated recovered fiber paper and 35% for the micro TiO(2) coated CTMP paper. According to the ReCiPe single score impact assessment method, the new product configurations allow the reduction of the environmental impacts by 10-35% compared to conventional kraft paper. Applying consequential modeling, we found larger energy and GHG emission savings compared to attributional modeling because the saved wood is used for producing energy, thereby replacing fossil fuels. The nanoparticle coated recovered fiber paper offered savings of non-renewable energy use (NREU) by 100% (13GJ/ton paper) and GHG emission reduction by 75% (0.6 tonCO(2)eq./ton paper). Micro TiO(2) coated CTMP paper offered NREU savings by 25% (3GJ/ton paper) and savings of GHG emissions by 10% (0.1 tonCO(2)eq./ton paper). The taking into account of all environmental impacts with the ReCiPe single score method leads to comparable results as that of attributional modeling. We conclude that the nanoparticle coated recovered fiber paper offered the highest savings and lowest environmental impacts. However, human toxicity and ecotoxicity impacts of the nanoparticles were not included in this analysis and need further research. If this leads to the conclusion that the toxicity impacts of the nanoparticles are serious, then the CTMP paper with micro TiO(2) coating is the preferred option.

[1]  J. A. Bristow.  What is ISO brightness , 1994 .

[2]  E. Nieuwlaar,et al.  Introduction to Energy Analysis , 2008 .

[3]  Not Indicated,et al.  International Reference Life Cycle Data System (ILCD) Handbook - General guide for Life Cycle Assessment - Detailed guidance , 2010 .

[4]  Ernst Worrell,et al.  Preliminary evaluation of risks related to waste incineration of polymer nanocomposites. , 2012, The Science of the total environment.

[5]  R. Koelemeijer,et al.  Cobenefits of climate and air pollution regulations The context of the European Commission Roadmap for moving to a low carbon economy in 2050 , 2012 .

[6]  A. Zuckerman,et al.  IARC Monographs on the Evaluation of Carcinogenic Risks to Humans , 1995, IARC monographs on the evaluation of carcinogenic risks to humans.

[7]  J. Buongiorno,et al.  Consequences of increasing bioenergy demand on wood and forests: An application of the Global Forest Products Model , 2011 .

[8]  Christine Ogilvie Robichaud,et al.  Estimates of upper bounds and trends in nano-TiO2 production as a basis for exposure assessment. , 2009, Environmental science & technology.

[9]  Tomas Ekvall,et al.  Key methodological issues for life cycle inventory analysis of paper recycling , 1999 .

[10]  Dominik Saner,et al.  Persistence of engineered nanoparticles in a municipal solid-waste incineration plant. , 2012, Nature nanotechnology.

[11]  Christopher J. Biermann,et al.  Essentials of Pulping and Papermaking , 1993 .

[12]  B. Bakshi,et al.  Life Cycle of Titanium Dioxide Nanoparticle Production , 2011 .

[13]  Ana Cláudia Dias,et al.  Life cycle assessment of printing and writing paper produced in Portugal , 2007 .

[14]  H. Wenzel,et al.  Paper waste - recycling, incineration or landfilling? A review of existing life cycle assessments. , 2007, Waste management.

[15]  Bhavik R Bakshi,et al.  Appreciating the role of thermodynamics in LCA improvement analysis via an application to titanium dioxide nanoparticles. , 2011, Environmental science & technology.

[16]  Ernst Worrell,et al.  Paper and biomass for energy?: The impact of paper recycling on energy and CO2 emissions , 2010 .

[17]  David Pennington,et al.  Recent developments in Life Cycle Assessment. , 2009, Journal of environmental management.

[18]  R. Frischknecht,et al.  Implementation of Life Cycle Impact Assessment Methods. ecoinvent report No. 3, v2.2 , 2010 .

[19]  Linda S. Heath,et al.  The greenhouse gas and energy impacts of using wood instead of alternatives in residential construction in the United States , 2008 .