Investigating the feasibility of biomethane production and nutrient recovery from aquaponics-derived sludge

水培是一种高效、环保的水产养殖和水培相结合的系统。这是减少水和养分消耗的一种有益且可持续的方法。水培技术作为一种可持续的有机种植新鲜鱼类和蔬菜的方式，在加拿大得到了显著的增长和发展。在加拿大等寒冷气候地区，这将意味着更有利可图地使用温室。在加拿大，将鱼泥排入当地下水道系统是水培废弃物的主要处理方法。就水污染和温室气体排放而言，这些方法与重大的成本和环境问题有关。厌氧消化来自水培系统的鱼泥是一种有吸引力的替代方案，因为它对处理有机废物具有成本效益和能源效益。此外，加拿大对可再生能源生产的需求增加，使厌氧消化用于生物甲烷生产的应用走在了前列。这项拟议的研究与绿色救济组织合作，旨在引入厌氧消化，作为加拿大水培废物处理的一种具有成本效益和能源效率的替代方法。虽然这项研究的结果将主要有利于绿色救济，因为它提供了从水培产生的废物中实现最佳能量和养分回收所需的基本和应用信息，但它也适用于加拿大各地的其他水培系统。这将导致该公司在加拿大的业务市场扩大，从而增加就业。因此，类似的研究项目侧重于在水培系统中生产可再生能源和增值产品，从长远来看，可能会在加拿大创造主要的绿色能源收入，因为来自有机废物的绿色能源在联邦和省得到了更多的关注。

Aquaponics is an efficient and environmentally friendly combination of aquaculture and hydroponics systems. It is a beneficial and sustainable approach to reduce water and nutrient consumption. Aquaponics technology, as a sustainable way to organically grow fresh fish and vegetables, is significantly growing and developing in Canada. In cold climates such as Canada, that will mean a more profitable use of greenhouses. Discharging the fish sludge into the local sewer system is the main disposal methods of waste from aquaponics in Canada. These methods are associated with significant cost and environmental concerns in terms of the water pollution and the emission of greenhouse gases. Anaerobic digestion of fish sludge from aquaponics systems is an appealing alternative as it can be cost-effective and energy efficient for the disposal of organic wastes. Moreover, the increased demand for the production of renewable energy in Canada has brought the application of anaerobic digestion for biomethane production to the forefront. The proposed research in collaboration with Green Relief aims to introduce anaerobic digestion as a cost-effective and energy-efficient alternative method for waste disposal from Canadian aquaponics. Although the outcome of this research will primarily benefit Green Relief by providing the fundamental and applied information required to achieve the optimum energy and nutrient recovery from aquaponics-derived wastes, it is also applicable to other aquaponics systems across Canada. This will result in the expansion of the company's business market in Canada leading to an increase in employment. Therefore, research projects similar to this with a focus on the production of renewable energy and value-added products in aquaponics systems are likely to create major green energy revenues in the long term in Canada, as green energy from organic wastes gets more attention both federally and provincially.