Advanced treatment of recycled organic matter

环境工程师为社会工作，消除或尽量减少与人类活动有关的负面环境影响。堆肥系统已被确定为一项关键技术，以帮助回收有机物质从我们的废物流到我们的土壤。在可持续社会目标的推动下，堆肥行业在过去十年中取得了巨大的增长。大型集中式堆肥设施从城市固体废物流中回收的有机物量现已超过每年200万吨，自2000年以来增长了105%。加拿大产生的可回收有机物质（ROM）的总量要高得多，因为城市生活垃圾数据不包括纸浆和造纸工业废物、农业废物或城市生物固体。例如，加拿大牲畜粪便的产量估计为每年1.775亿吨，这是一种常见的堆肥原料。

Environmental engineers work for society eliminating or minimizing the negative environmental impacts associated with human activities. Composting systems have been identified as a key technology to help recycle organic matter from our waste streams to our soils. Driven by goals set for a sustainable society, the composting industry has seen dramatic growth in the past decade. The amount of organic matter recycled from the municipal solid waste (MSW) stream at large-scale centralized composting facilities has now exceeded 2 million tonnes per year and has grown by 105% since 2000. The total amount of recycled organic matter (ROM) produced in Canada is much higher, as the MSW data do not include pulp and paper industrial wastes, agricultural wastes, or municipal biosolids. For example, the production of livestock manure in Canada, a common composting feedstock, is estimated to be 177.5 million tonnes per year.