Phosphorus Recovery as Key to Industry Leadership in Sustainable Organic Waste Management

GHD Canada寻求在有机废物管理和回收方面保持行业领先地位。有机废物 约占加拿大所有废物的40%。这些有机废物中只有不到10%被回收；其余的是 被埋在垃圾填埋场或焚烧。这种做法既浪费又可能造成污染。有机废物 含有宝贵的不可再生资源，如磷(P)，这是植物必不可少的营养物质 成长。然而，不小心使用磷可能会危及粮食安全(如果粮食需要无机肥 生产变得负担不起或无法获得)，并可能造成水生污染(如果过量的磷被排放到 航道)。因此，加拿大的几个省和直辖市正在采取行动，对有机食品进行监管 废物管理，鼓励回收和保护环境。这项研究旨在评估城市 有机废物管理，以解决磷缺乏和污染的共同问题。 城市为磷管理提供了独特的机会，因为有机产品，如食品和 随后消费产生的废物集中在那里。这里提出的研究将使用 以蒙特利尔为例，评估目前在加拿大各地提出的新废物管理政策 可能会影响磷在城市中的流动，以及城市有机废物作为堆肥和类似物的回收利用 产品可以节约营养，减少污染。 GHD Canada已与麦吉尔大学接洽，就该项目进行合作。GHD加拿大分公司是 一家在环境工程和可持续发展方面拥有强大投资的国际咨询公司。 麦吉尔生物资源工程系为GHD提供有机废物方面的关键专业知识 加工替代品、养分循环、磷和城市研究。

GHD Canada seeks to remain an industry leader in organic waste management and recycling. Organic waste makes up about 40% of all waste in Canada. Less than 10% of this organic waste is recycled; the remainder is buried in landfills or incinerated. This practice is both wasteful and potentially polluting. Organic waste contains valuable non-renewable resources such as phosphorus (P), which is an essential nutrient for plant growth. However, the careless use of P can compromise food security (if mineral fertilizer required for food production becomes unaffordable or unavailable), and can cause aquatic pollution (if excess P is discharged to waterways). As a result, several provinces and municipalities across Canada are moving to regulate organic waste management to encourage recycling and preserve the environment. This study intends to assess urban organic waste management as a solution to the joint issues of phosphorus scarcity and pollution. Cities provide unique opportunities for P management because organic products such as food and the subsequent waste produced from consumption are concentrated there. The research proposed here will use Montreal as a case study to assess how new waste management policies currently proposed across Canada might affect P flows through cities, and how the recycling of municipal organic waste as compost and similar products can conserve nutrients and reduce pollution. GHD Canada has approached McGill University to collaborate on this project. GHD Canada is a division of an international consulting company with a strong investment in environmental engineering and sustainability. McGill's Department of Bioresource Engineering provides GHD with vital expertise in organic waste processing alternatives, nutrient cycling, phosphorus, and urban studies.