Development and testing of CO2 flux monitoring equipment for deployment in rivers

该项目解决的公司特有的问题是缺乏测量河流二氧化碳通量的测试能力。河流二氧化碳通量的量化是计算二氧化碳去除(CDR)技术的二氧化碳净排放量所需的一个新的新兴市场。Eosense是一家加拿大公司，拥有创新的强制扩散技术专利，可以监测表面的二氧化碳通量；他们的设备具有创新之处，既准确，又不受天气影响。虽然Eosense产品目前被用来测量各种环境中的二氧化碳通量，包括土壤和湖泊，但它们还没有被适应用于河流。该项目包括测试和开发测量河流二氧化碳通量的设备。将在新斯科舍省的两条河流进行测量，目前这两条河流正在使用石灰剂量，在河流中不断添加白云石粉(MgCaCO3)，以对抗酸化对水生健康和鱼类生产力的影响。该项目将着眼于三个具体成果：1)确定二氧化碳传感器在河流中的普遍使用和适用性所需的设计变化；2)验证在不同地点进行短期测试的测试测量；以及3)检查几个适用于监测淡水二氧化碳逃逸和白云岩风化造成的二氧化碳排放的设计。该测试将检查可以采集的最佳样本数量和比率、设备对二氧化碳动力学的影响、电力需求、设备限制和设备故障。该项目将为Eosense打开新的免费市场，显著增强它们的竞争力。

The company-specific problem that this project addresses is the lack of tested capability of measuring CO2 fluxes from rivers. Quantification of CO2 fluxes from rivers is a new and emerging market needed for calculating the net CO2 drawdown of carbon dioxide removal (CDR) technologies. Eosense is a Canadian company that has patented innovative forced diffusion technology to monitor CO2 fluxes from surfaces; their devices are innovative for being accurate while being weather-proof. While Eosense products are currently used to measure CO2 fluxes in a variety of environments, including soils and lakes, they have not yet been adapted to use in rivers. This project involves the testing and development of equipment for measuring CO2 fluxes from rivers. Measurements will be made in two rivers in Nova Scotia that are currently being "limed" by lime-dosers, in which dolomite powder (MgCaCO3) is added continuously to rivers to combat effects of acidification on aquatic health and fish productivity. The project will look at three specific outcomes: 1) determine design changes needed for general use and applicability of CO2 sensors in rivers, 2) verify test measurements in a variety of locations for short duration testing; and 3) examine several designs applicable for monitoring CO2 evasion from freshwaters and CO2 drawdown from weathering of the dolomite. The testing will examine the optimum number and rate of samples that can be taken, impacts of the equipment on CO2 dynamics, power requirements, equipment limitations and equipment failure.This project will open new, complimentary markets to Eosense, significantly enhancing their competitive offerings.