Costa Rúben D F S, Barbosa Marta L S, Silva Francisco J G, Sousa Susana R, Pinto Arnaldo G, Sousa Vitor F C, Ferreira Bruno O
ISEP, Polytechnic of Porto, 4249-015 Porto, Portugal.
INEGI-Institute of Science and Innovation in Mechanical and Industrial Engineering, 4200-465 Porto, Portugal.
Materials (Basel). 2023 Jan 20;16(3):969. doi: 10.3390/ma16030969.
The use of disinfection and cleaning chemicals in several municipal facilities, such as swimming pools and drinking water treatment plants, causes the degradation of various types of wood, which leads to failures in equipment and the corresponding need for maintenance. This degradation creates added costs for municipalities, as well as the closure of certain facilities due to curative or preventive maintenance and, in many cases, public health issues, due to the water being contaminated with deteriorating products. Through a thorough study of the degradation effect on the products, more resistant materials can be found which are able to withstand these adversities and increase the lifespan of wood in regular contact with chemical agents. This is achievable by the determination of the cost-effectiveness of the substitute material to replace these components with alternative ones, with properties that better resist the deterioration effects promoted by aggressive environments. No studies have been found so far strictly focused on this matter. The objective of this study is to evaluate the degradation presented by two types of wood, beech and oak, which are exposed to the action of chlorine in municipal facilities. This degradation varies according to the chlorine content and the materials' time of contact with the chemical agent, allowing the selection of new materials which will provide an extended lifetime of the components, reducing maintenance drastically, as well as costs for the facilities and the risk to public health. The performed experimental tests have shown that the oak wood has the best results regarding chlorine degradation resistance.
在一些市政设施中,如游泳池和饮用水处理厂,使用消毒和清洁化学品会导致各类木材降解,进而造成设备故障以及相应的维护需求。这种降解给市政当局带来了额外成本,还会因进行修复性或预防性维护而导致某些设施关闭,并且在许多情况下,由于水被降解产物污染,还会引发公共卫生问题。通过对产品降解效应的深入研究,可以找到更具抗性的材料,这些材料能够抵御这些不利因素,并延长与化学试剂经常接触的木材的使用寿命。这可以通过确定替代材料的成本效益来实现,即用具有更好抗侵蚀环境促进的劣化效应特性的替代材料来替换这些部件。到目前为止,尚未发现有严格聚焦于此问题的研究。本研究的目的是评估山毛榉和橡木这两种木材在市政设施中受到氯作用时的降解情况。这种降解会根据氯含量以及材料与化学试剂的接触时间而有所不同,从而能够选择新型材料,以延长部件的使用寿命,大幅减少维护工作以及设施成本和公共卫生风险。所进行的实验测试表明,橡木在耐氯降解方面效果最佳。