Web-Resol Tudo sobre Limpeza Urbana e Resíduos Sólidos!
A widely explored myth is that waste paper recycling saves forests and preserves natural resources. On the contrary, cellulose is always obtained from cultivated trees, a renewable resource. And the energy consumed in recycling paper is in some cases many times greater than the energy used in its fabrication from cellulose. Besides, paper recycling is an activity that consumes large amounts of water and, if the proper precautions such as treatment of waste water are not taken, it can be highly polluting. One of the most serious problems with the recycling of paper is the paint that has to be separated in order to result in a high quality product. There are two chemical processes which are most commonly used: the first is the addition of large amounts of chemical products during the making of the pulp to “wash” the mixture, or the injection of air through the pulp mass with the posterior removal of paint and others impurities that float with the foam. The second method, in which the results are not of such good quality but that, on the other hand, requires less water, is done with the dispersion of the paint throughout the whole mass of the pulp. In both methods, the environment should always be remembered and the proper adjustments in this sense might need larger investments
Artigos Relacionados
Check Also
Egypt reviews Red Sea waste management system – Dailynewsegypt
Egypt’s Minister of Local Development and Environment, Manal Awad, and Red Sea Governor Walid El-Barqi held an extensive meeting to review the performance of the governorate’s waste management system and discuss measures to improve environmental services and operational efficiency. The meeting, held during Awad’s visit to the Red Sea Governorate to mark World Environment Day, focused on assessing current challenges facing waste collection, sorting, recycling and disposal operations, as well as identifying priority actions to strengthen the system’s performance. Awad stressed that the government places significant importance on developing an integrated waste management system in the Red Sea Governorate, given its strategic importance as one of Egypt’s leading tourism destinations. She emphasized the need to comply with environmental and technical standards governing sanitary landfills, waste treatment facilities and environmentally sound disposal practices. During the meeting, officials reviewed the current status of waste management operations in Hurghada, including collection, transportation, sorting, recycling and final disposal activities. Discussions also covered the infrastructure upgrades required to improve system efficiency and ensure the proper operation of sanitary landfill facilities. Yasser Abdullah, head of Egypt’s Waste Management Regulatory Authority, presented updates on temporary waste collection and sorting sites and outlined measures to strengthen operational management and oversight. He highlighted the importance of improving monitoring mechanisms for waste handling activities and maximizing the recovery of recyclable materials while reducing informal and unregulated practices.