Industrial residues in Northern Ontario : A field study of wood ash and sludge for mine site soil rehabilitation and biodiversity in the Sudbury basin

安大略省北部的工业残留物：对萨德伯里盆地矿场土壤恢复和生物多样性的木灰和污泥进行实地研究

• 批准号: 523360-2018
• 负责人: Craig, Robin
• 金额: $ 10.76万
• 依托单位: Collège Boréal
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=696696
• 关键词: Industrial; residues; Northern; Ontario; field

The present study is an examination into the viability of using a wood-ash treatment for the purpose of soil remediation on acidified soils resulting from smelting operations. The study follows a pilot project done between the Natural Sciences and Engineering Council of Canada, Atlantic Power Corporation and Collège Boréal. In a controlled greenhouse setting, wood-ash from Atlantic Power Corporation was found to have statistically significant and positive effects on soil nutrients and tree seedling growth. This study is meant to corroborate the results of the greenhouse research by conducting field trials to determine the effectiveness of the wood-ash on soil affected by a century of mining-related activities. The wood-ash from Atlantic Power also has a low nitrogen content. Therefore, in addition to corroborating the results of the greenhouse study, the purpose of the field trial will be to determine the most effective source of nitrogen (e.g., pulp sludge, N-Rich soil) and the appropriate concentration of nitrogen to be combined with wood-ash to maximize soil fertility and plant growth to achieve biodiversity. Glencore - Sudbury Integrated Nickel Operations has joined the partnership with hopes that the wood-ash could be used on its mining properties. The results could provide the multi-national mining company with an inexpensive and environmentally friendly alternative to liming and fertilising to reduce soil acidity and improve soil nutrients. For Atlantic Power Corporation, they will have empirical evidence supporting the efficacy of their ash on acidified mining land and one potential end-user (i.e., Glencore Sudbury INO) meaning that they no longer need to landfill their wood-ash. Lastly, the professors and students from Collège Boréal will enhance their research skill set with regards to establishing research protocols, data collection and analysis.

本研究是一个检查到的可行性使用木灰处理土壤修复的目的，对酸化土壤冶炼操作。这项研究是在加拿大自然科学和工程理事会、大西洋电力公司和博雷尔学院之间进行的一个试点项目之后进行的。在受控温室环境中，发现大西洋电力公司的木灰对土壤养分和树苗生长具有统计学显着的积极影响。这项研究是为了证实温室研究的结果，进行实地试验，以确定木材灰对土壤的有效性受世纪的采矿活动。大西洋电力公司生产的木灰氮含量也很低。因此，除了证实温室研究的结果之外，田间试验的目的将是确定最有效的氮源（例如，纸浆污泥，氮丰富的土壤）和适当浓度的氮与木灰结合，以最大限度地提高土壤肥力和植物生长，实现生物多样性。 嘉能可-萨德伯里综合镍业务已加入合作伙伴关系，希望木灰可用于其采矿财产。研究结果可以为这家跨国矿业公司提供一种廉价且环保的替代方法，以减少土壤酸度并改善土壤养分。对于大西洋电力公司，他们将有经验证据支持他们的灰对酸化采矿土地和一个潜在的最终用户（即，嘉能可萨德伯里INO）的意思是，他们不再需要填埋他们的木灰。最后，来自Boréal学院的教授和学生将提高他们在建立研究协议，数据收集和分析方面的研究技能。