Life cycle assessment of sustainable raw material acquisition for functional magnetite bionanoparticle production.
Life cycle assessment of sustainable raw material acquisition for functional magnetite bionanoparticle production.
复制标题
用于功能性磁铁矿生物纳米颗粒生产的可持续原材料获取的生命周期评估。
DOI：
10.1016/j.jenvman.2017.05.048
复制
发表时间：
2017
影响因子：
8.7
通讯作者：
Sadhukhan J
中科院分区：
文献类型：
--
作者：
Sadhukhan J
磁铁矿纳米颗粒（MNP）具有多种应用，包括用于医疗诊断，可再生能源生产和废物治理。然而，从分析级材料生产MNP的过程是资源密集型的，并且可能对环境造成破坏。这项工作首次审查了四个MNP生产案例的生命周期评估（LCA）：（i）工业MNP生产系统;（ii）最先进的MNP生物合成系统;（iii）最佳MNP生物合成系统和（iv）使用来自废水的原材料的MNP生物合成系统，以便为MNP合成推荐可持续的原材料获取途径。工业生产系统被用作比较生物基系统的LCA性能的基准（情况ii-iv）。采用适当的生命周期影响评估方法相结合，全面分析系统的环境成本和效益。LCA结果显示，与工业MNP生产系统相比，利用分析级氯化铁和氢氧化钠作为原材料的最先进的MNP生物合成系统产生的环境成本而不是效益。尽管如此，在最佳生物合成系统中，通过将氢氧化钠的输入量从11.28减少到1.55（与MNP的质量比），并用硫酸铁（与MNP的质量比分别为3.02和2.59）代替氯化铁，实现了环境影响的六倍减少。因此，可以通过最小化氢氧化钠和用硫酸铁代替氯化铁来减少MNP生产-维生素生物合成系统的潜在不利环境影响。此外，相当大的环境效益表现在情况下（iv），其中Fe（III）离子来源于含金属的废水和减少MNP的电子收获的有机基板。据透露，14.4千焦和3.9千焦的初级化石资源的节省可以实现每克MNP和相关的电力回收废水，分别。由废水进料的MNP生物合成系统所表现出的显著的环境效益显示了MNP的可持续生产的希望。
Magnetite nanoparticles (MNPs) have several applications, including use in medical diagnostics, renewable energy production and waste remediation. However, the processes for MNP production from analytical-grade materials are resource intensive and can be environmentally damaging. This work for the first time examines the life cycle assessment (LCA) of four MNP production cases: (i) industrial MNP production system; (ii) a state-of-the-art MNP biosynthesis system; (iii) an optimal MNP biosynthesis system and (iv) an MNP biosynthesis system using raw materials sourced from wastewaters, in order to recommend a sustainable raw material acquisition pathway for MNP synthesis. The industrial production system was used as a benchmark to compare the LCA performances of the bio-based systems (cases ii-iv). A combination of appropriate life cycle impact assessment methods was employed to analyse environmental costs and benefits of the systems comprehensively. The LCA results revealed that the state-of-the-art MNP biosynthesis system, which utilises analytical grade ferric chloride and sodium hydroxide as raw materials, generated environmental costs rather than benefits compared to the industrial MNP production system. Nevertheless, decreases in environmental impacts by six-fold were achieved by reducing sodium hydroxide input from 11.28 to 1.55 in a mass ratio to MNPs and replacing ferric chloride with ferric sulphate (3.02 and 2.59, respectively, in a mass ratio to MNPs) in the optimal biosynthesis system. Thus, the potential adverse environmental impacts of MNP productionviathe biosynthesis system can be reduced by minimising sodium hydroxide and substituting ferric sulphate for ferric chloride. Moreover, considerable environmental benefits were exhibited in case (iv), where Fe(III) ions were sourced from metal-containing wastewaters and reduced to MNPs by electrons harvested from organic substrates. It was revealed that 14.4 kJ and 3.9 kJ of primary fossil resource savings could be achieved per g MNP and associated electricity recoveries from wastewaters, respectively. The significant environmental benefits exhibited by the wastewater-fed MNP biosynthesis system shows promise for the sustainable production of MNPs.
登录
查看更多内容
影响因子：
4.8
作者：
M. Watts;R. S. Cutting;N. Joshi;V. Coker;Apalona Mosberger;Bo Zhou;Catherine R. Davies;B. Dongen;Thomas Hoffstetter;J. Lloyd
通讯作者：
M. Watts;R. S. Cutting;N. Joshi;V. Coker;Apalona Mosberger;Bo Zhou;Catherine R. Davies;B. Dongen;Thomas Hoffstetter;J. Lloyd
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
S. Eggleston;L. Buendia;K. Miwa;T. Ngara;K. Tanabe;K. Paustian;A. V. Amstel;Manure Management
通讯作者：
S. Eggleston;L. Buendia;K. Miwa;T. Ngara;K. Tanabe;K. Paustian;A. V. Amstel;Manure Management
产品原材料使用阶段的综合环境产品评估模型场景
影响因子：
13.2
作者：
Y. Wong;Kun;K. Yung
通讯作者：
K. Yung
Ecoinvent 数据库：基于 Web 的生命周期评估数据库的质量控制和用户界面
影响因子：
6.2
作者：
R. Frischknecht
通讯作者：
R. Frischknecht