Functional Analysis Laboratory and Treatment Methods, University of Saad Dahlab Blida1, Blida, Algeria.
Department of Waste and Resource Management, Faculty of Agricultural and Environmental Sciences, University of Rostock, Rostock, Germany.
Waste Manag Res. 2021 Sep;39(9):1174-1184. doi: 10.1177/0734242X20982277. Epub 2021 Jan 6.
As in many developing countries, municipal solid waste (MSW) management is one of the most significant challenges facing urban communities in Algeria. The effective management of solid waste involves the application of various treatment methods, and technologies to ensure the protection of public health and the environment. This research work aimed to examine potential production and utilization of refuse-derived fuel (RDF) from MSW to be used as a substitute fuel in cement kilns in Algeria. After receiving the input waste, sieves were used to categorize MSW according to size. The waste fractions >80 mm were subjected to a drying process in an open-air area and had been turned periodically in order to increase the dry matter (DM). A cost study was performed to evaluate the environmental and economic savings of RDF utilization in the cement industry. At the end of the drying process, as a consequence of the waste moisture reduction, the low heating value was found to be 16 MJ kg, and the DM 87%. Concerning heavy metal content, their concentrations were within the limits set by the European Committee for Standardization (CEN)/TC 343 standardization. The chlorine content was around 0.37% to 0.80%. The feasibility study of adding RDF as a substitute fuel in the cement industry showed that when 15% of RDF is used, the RDF consumption will be 4.7 metric tonnes (Mt) h, which will save 4347.2 Nm h of natural gas and 0.3 Mt h in carbon dioxide emissions, with a net gas cost saving of 65 USD h.
与许多发展中国家一样，城市固体废物（MSW）管理是阿尔及利亚城市社区面临的最重大挑战之一。固体废物的有效管理涉及应用各种处理方法和技术，以确保保护公共健康和环境。这项研究工作旨在研究从城市固体废物中生产和利用垃圾衍生燃料（RDF）的潜力，以作为阿尔及利亚水泥窑的替代燃料。在接收输入废物后，使用筛子根据尺寸对 MSW 进行分类。>80 毫米的废物部分在露天区域进行干燥处理，并定期翻转以增加干物质（DM）。进行了成本研究，以评估水泥行业中 RDF 利用的环境和经济节约。在干燥过程结束时，由于废物水分减少，发现低热值为 16 MJ kg，DM 为 87%。关于重金属含量，其浓度在欧洲标准化委员会（CEN）/TC 343 标准化标准规定的范围内。将 RDF 作为替代燃料添加到水泥行业的可行性研究表明，当使用 15%的 RDF 时，RDF 的消耗量将为 4.7 公吨（Mt）/小时，这将节省 4347.2 立方米/小时的天然气和 0.3 Mt/h 的二氧化碳排放，净气体成本节省 65 美元/小时。
