Bleached pulp from Chilean Eucalyptus process dataset

The data involved in this research represent the resource demand and emissions of the forestry and pulp mills process in Chile. The hypothesis is looking for the quantification of the environmental impacts of the bleached pulp of short fibre in Chile, in order to compare the life cycle performance of the sector. The data includes the forestry activity based on research of Morales et al. (2015) and the pulp industry based on data from the National Environmental Assessment System, where the projects declare their resource consumption, mainly. Complementary information was obtained from direct sources in the industrial plant through personal communication. All the data were obtained and treated in the file, to change the physical basis reported to the basis needed in life cycle assessment. In this sense, 1 ha is the functional unit for the forestry stage and 1 ton of cellulose for the industrial stage. The transport between the forest and the industrial complex was included in the sheet named "Forestry Stage". The data for wood production is reported based on the demand to cultivate 1 hectare of Eucalyptus pulping wood. The data for cellulose production is reported in the "Pulp Industry" sheet and includes the chemicals and fuels consumption, calculation of fossil and biogenic emissions, airborne, wastewater, and solid waste. These data are reported on the basis of 1 tonne of bleached pulp. Using mass and energy balances the raw data were adapted to the pulp production in 2017. These data were input to SimaPro software and obtained the results for LCA by stage and the whole process. The most relevant results show that by far chemical processing is the most environmentally intensive and the rational use of biocides and fertilizers in forestry stage is still a challenge. Also, this study quantifies the amount of biogenic carbon release by ton of pulp finding a rate over 3 ton CO2 biogenic/ton pulp. These results broaden the perspective of the forestry sector, given the relevance to others environmental impacts despite the benefits behind its carbon neutrality.

本研究采用的数据，表征了智利林业与制浆生产流程的资源需求与污染物排放情况。本研究的核心假设为量化智利短纤维漂白浆的环境影响，以对比该行业的全生命周期表现。数据集涵盖基于Morales等人（2015）研究的林业活动数据，以及源自国家环境评估系统（National Environmental Assessment System）的制浆工业数据——该系统要求项目申报主要资源消耗量。补充信息通过与工业厂区相关人员的私人沟通获取。所有数据均经文件处理，将报告的物理计量基准转换为生命周期评估（Life Cycle Assessment, LCA）所需的计量基准。在此研究框架下，林业阶段的功能单元为1公顷土地，工业阶段的功能单元为1吨纤维素。林地与工业园区之间的跨区域运输环节，被纳入名为"林业阶段"的工作表中。木材生产数据以种植1公顷桉木制浆用材的需求量为基准进行申报。纤维素生产数据收录于"制浆工业"工作表中，涵盖化学品与燃料消耗量、化石源与生物源排放核算、大气污染物、废水及固体废物相关内容，上述数据均以1吨漂白浆为申报基准。通过物料与能量衡算，将原始数据适配至2017年的制浆生产场景。将上述数据导入SimaPro软件后，得到了各阶段及全流程的生命周期评估结果。最具代表性的研究结果显示：化学处理环节的环境负荷遥遥领先；而林业阶段生物杀灭剂与肥料的合理使用仍为一项待解决的挑战。此外，本研究量化了每吨纸浆的生物源碳释放量，得出每吨纸浆的生物源CO₂释放量超过3吨的结果。尽管林业具备碳中和的固有优势，但其仍存在诸多其他环境影响，因此本研究结果拓展了林业行业的研究视角。