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

鱼菜共生是一种高效、环保的水产养殖和水培系统的结合。这是减少水和养分消耗的有益和可持续的方法。鱼菜共生技术作为一种有机种植新鲜鱼类和蔬菜的可持续方式，在加拿大正在显著增长和发展。在加拿大等寒冷气候地区，这将意味着温室的使用更有利可图。将鱼泥排入当地下水道系统是加拿大鱼菜共生废弃物的主要处置方式。这些方法与水污染和温室气体排放方面的显著成本和环境问题相关。鱼菜共生系统的鱼污泥厌氧消化是一个有吸引力的替代方案，因为它可以是具有成本效益和能源效率的有机废物处置。此外，加拿大对可再生能源生产的需求增加，使厌氧消化生产生物甲烷的应用成为最前沿。拟议的研究与绿色救济合作，旨在引进厌氧消化作为一个具有成本效益和能源效率的替代方法，废物处理从加拿大鱼菜共生。虽然这项研究的结果将主要有利于绿色救济提供所需的基本和应用信息，以实现最佳的能源和养分回收从鱼菜共生衍生的废物，它也适用于加拿大各地的其他鱼菜共生系统。这将扩大公司在加拿大的业务市场，从而增加就业机会。因此，类似的研究项目，重点是生产可再生能源和增值产品的鱼菜共生系统可能会创造主要的绿色能源收入在加拿大的长期，作为绿色能源从有机废物得到更多的关注联邦和省。

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.