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

水培系统是一种高效、环保的水产养殖和水培系统的结合。这是一种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，在加拿大得到了显著的发展。在像加拿大这样的寒冷气候中，这将意味着温室的使用更加有利可图。将鱼泥排入当地的下水道系统是加拿大鱼共生废物的主要处理方法。就水污染和温室气体排放而言，这些方法涉及重大成本和环境问题。厌氧消化来自鱼菜共生系统的鱼泥是一个有吸引力的替代方案，因为它可以具有成本效益和能源效率的有机废物的处理。此外，加拿大对可再生能源生产的需求增加，使厌氧消化在生物甲烷生产中的应用成为最前沿。与Green Relief合作的拟议研究旨在将厌氧消化作为一种具有成本效益和节能的替代方法，用于加拿大鱼菜共生的废物处理。虽然这项研究的结果将主要通过提供从水培产生的废物中实现最佳能量和养分回收所需的基础和应用信息而使Green Relief受益，但它也适用于加拿大其他水培系统。这将扩大公司在加拿大的业务市场，从而增加就业。因此，类似的研究项目，重点是可再生能源和水产共生系统中增值产品的生产，很可能在加拿大长期创造主要的绿色能源收入，因为来自有机废物的绿色能源得到了联邦和省的更多关注。

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.