Sustainable Urban Carbon Capture: Engineering Soils for Climate Change (SUCCESS)

可持续城市碳捕获：工程土壤应对气候变化（成功）

基本信息

批准号：
EP/K034952/1
负责人：
David Manning
金额：
$ 96.76万
依托单位：
Newcastle University
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2014
资助国家：
英国
起止时间：
2014 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK034952%2F1
关键词：
Sustainable Urban Carbon Capture Engineering

项目摘要

We have found that soils in cities are more effective sinks for carbon than agricultural soils. Urban soils typically carry a burden of fine-grained materials derived from often a long history of demolition. These materials include cement dust, which contains calcium silicate minerals, and also lime (calcium hydroxide). What we have found is that calcium derived from these minerals combines rapidly with carbonate in solution, which ultimately is derived from two sources - plants or rainwater. The rate at which this process occurs is extremely rapid, typically 100 T CO2 are removed from the atmosphere for each hectare of ground monthly; that's in a patch of ground the size of a football pitch. The amounts of carbon stored in urban soils as a consequence of this process are around 300 T C per hectare (compared with 175 T C per hectare in agricultural soils), and this is achieved rapidly after demolition (within very few years).We want to make sure that construction activity takes advantage of these findings, to help compensate for the CO2 emissions that arise from burning fossil fuels, and to contribute to the UK's ambitious targets for reducing our emissions. The potential is there - if engineered soils are strategically and systematically designed to have a carbon capture function we believe that around 10% of the UK's 2011 CO2 emissions could be captured in this way, as part of normal construction activity. The costs involved are far less than energy and capital intensive CO2 scrubbing systems that are fixed to specific plant, such as a power station. What's more, the design involves a range of ecosystem services and involves broadening the concept of 'Carbon Capture Gardens', which we have found to be very acceptable among a wide range of stakeholders, as pleasant spaces are created that communities can enjoy and engage with.The proposed research is intended to address some significant questions:1) Can we reproduce the soil carbonation process artificially, so we can be sure of the carbon capture value?2) How can we validate the process, so that claims of carbon sequestration can be trusted?3) Is the process genuinely worth doing, in the context of UK and global CO2 emissions reduction targets?4) What effect does the process have on soils, especially their strength and ability to drain rainwater, thus preventing flooding?5) What effect does this approach have on plant and animal communities? Will the plants that we want grow in ground that has been treated to optimize carbon capture?6) How does this process fit in with existing regulations that affect brownfield sites?7) Under what circumstances is the process economically viable, given the geographical controls on availability of materials?8) Can individuals use this approach in their own gardens?During the project, we will work with a wide range of stakeholders, from industry, local authorities and environmental groups as well as academics. We will engage students in monitoring work as part of the dissemination process. All the work will be openly published in appropriate forms, and we expect to build a growing community network associated with the project.

我们发现，城市中的土壤比农业土壤更有效。城市土壤通常会承担一些经常拆除历史的细粒材料的负担。这些材料包括水泥灰尘，其中含有硅酸钙矿物质以及石灰（氢氧化钙）。我们发现，源自这些矿物质的钙与溶液中的碳酸盐迅速结合，最终源自两个来源 - 植物或雨水。此过程发生的速度非常快，通常每月从大气中删除100吨二氧化碳；那是足球场大小的地面。 The amounts of carbon stored in urban soils as a consequence of this process are around 300 T C per hectare (compared with 175 T C per hectare in agricultural soils), and this is achieved rapidly after demolition (within very few years).We want to make sure that construction activity takes advantage of these findings, to help compensate for the CO2 emissions that arise from burning fossil fuels, and to contribute to the UK's ambitious减少我们的排放的目标。潜力存在 - 如果在战略性和系统上设计工程的土壤具有碳捕获功能，我们相信，作为正常施工活动的一部分，可以以这种方式捕获英国2011年二氧化碳排放量的10％。所涉及的成本远低于固定在特定工厂（例如电站）的能源和资本密集型二氧化碳擦洗系统。更重要的是，该设计涉及一系列生态系统服务，并涉及扩大“碳捕获花园”的概念，我们发现，在各种利益相关者中，我们发现这些概念是可以接受的，因为创建了宜人的空间，社区可以享受并与之互动。拟议的研究旨在解决一些重要问题：1）我们可以肯定地捕捉土壤碳化的过程，因此我们可以养育碳酸碳酸化，因此可以养成习惯，这是可以进行习惯的，这是可以养成的，这是可以进行的，既定性的，又可以限制习惯，这是习惯于习惯的，这是可以肯定的，这是可以肯定的，这是可以肯定的。因此，可以信任碳固换的主张吗？3）在英国和全球二氧化碳排放量减少目标的背景下，该过程是否真正值得做？4）4）过程对土壤有什么影响，尤其是它们的力量和排水雨水的能力，从而防止洪水？5）5）这种方法对植物和动物社区有什么影响？我们想要生长的植物会在经过治疗以优化碳捕获的基础上生长吗？6）这个过程与影响棕地网站的现有法规如何符合？7）在哪些情况下，该过程在经济上可行，鉴于材料的可用地理控制权？8）个人可以在自己的花园中使用这种方法吗？在项目中，我们将与众所周知的范围众所周知，我们将与众所周知的范围内的范围进行众所周知，以及众所周知的范围。作为传播过程的一部分，我们将吸引学生监视工作。所有工作将以适当的形式公开发布，我们希望建立与该项目相关的不断增长的社区网络。