Evaluation of an innovative integrated technology for the processing of municipal wastewater biosolids.

对城市废水生物固体处理的创新集成技术的评估。

• 批准号: 518195-2017
• 负责人: Wootton, Brent
• 金额: $ 1.82万
• 依托单位: Sir Sandford Fleming College of Applied Arts and Technology
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 1
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641268
• 关键词: Evaluation; innovative; integrated; technology; processing

Canadian wastewater treatment facilities produce more than 2.5 million wet tonnes of biosolids and sludge per year. The quantity of municipal biosolids produced continues to increase as the population expands. Currently municipalities are managing biosolids through landfill, incineration, land application, and advanced stabilization (i.e. composting or alkaline stabilization). The primary emissions from biosolids processing includes particulates and odorous gases which are considered a nuisance and need to be treated before being exhausted. As wastewater infrastructure continues to age, new low cost, small footprint, and energy efficient technologies are highly sought after. Upgraded wastewater facilities are needed to implement the Canada-wide Strategy for the Management of Municipal Biosolids signed by the Canadian Council of Municipalities of the Environment. Walker Environmental Group Inc. is an Ontario-based company that owns the patented N-Viro® process, an advanced stabilization technology, to produce agricultural fertilizers and soil amendments, known as N-Rich®. Walker Environmental aims to introduce an innovative chemical pretreatment process prior to their advanced alkaline stabilization process. The primary objective of this applied research project is to assess and optimize the innovative chemical pretreatment process for its ability to enhance the treatment process, treat solids, reduce operating costs and reduce odour. Optimization of this pretreatment process will be confirmed by determining optimal operating conditions when processing wastewater solids, including e.g. chemical dose, contact time, pH. The results of this research will allow Walker Environmental to develop and optimize this integrated system under real world conditions to process municipal solids and produce a Class B biosolids material at low costs. Moreover, they will be able to demonstrate to potential customers what this new system has to offer in terms of treatment capabilities and by-product quality, allowing them to expand in the Canadian and international markets.

加拿大的废水处理设施每年产生超过250万吨的生物固体和污泥。随着人口的增长，城市生物固体的产量也在不断增加。目前，市政当局正在通过填埋、焚烧、土地利用和高级稳定（即堆肥或碱性稳定）来管理生物固体。生物固体处理的主要排放物包括微粒和有气味的气体，它们被认为是有害的，需要在排放之前进行处理。随着污水处理基础设施的不断老化，新的低成本、小足迹和节能技术备受追捧。为了执行加拿大市政环境理事会签署的《全加拿大城市生物固体管理战略》，需要改进废水设施。Walker Environmental Group Inc.是一家总部位于安大略省的公司，拥有专利的N-Viro®工艺，一种先进的稳定技术，用于生产农业肥料和土壤改良剂，称为N-Rich®。沃克环境的目标是在他们先进的碱性稳定过程之前引入一种创新的化学预处理工艺。本应用研究项目的主要目标是评估和优化创新的化学预处理工艺，以提高处理工艺，处理固体，降低操作成本和减少气味的能力。预处理过程的优化将通过确定处理废水固体时的最佳操作条件来确定，包括化学剂量、接触时间、ph值。这项研究的结果将使沃克环境公司能够在现实世界的条件下开发和优化这个集成系统，以处理城市固体，并以低成本生产B类生物固体材料。此外，他们将能够向潜在客户展示这个新系统在处理能力和副产品质量方面所提供的服务，从而使他们能够在加拿大和国际市场上扩张。