Search results for "Material recovery"
showing 3 items of 3 documents
Measurements of organochloro compounds at a metal reclamation plant
1993
Abstract Kuusakoski Ltd is a metal reclamation company operating world wide. Metals recovered are mainly aluminium, copper and different steels. NaCl and KCl are used in processes. Sampling and emission analysis of PCP's, PCB's, PCDD/PCDF's and PAH's were made from seven processes at plant. Emissions indicate, that large part of chlorinated aromatic compounds are formed due to PVC-plastic in cables and car components. On the basis of this study, we suggest, that chlorinated benzenes, -naphtalens and -diphenyl ethers should also be measured in the emissions.
Reduction of Nitrates in Waste Water through the Valorization of Rice Straw: LIFE LIBERNITRATE Project
2018
An improved and more sustainable waste management system is required for successful development of technologies based on renewable sources. Rice straw is submitted to controlled combustion reactions and the produced ashes are chemically treated to produce silica. After a chemical activation step, the activated silica shows potential as an adsorbent agent and will be used to remove the excess of nitrates in groundwater and wells in the area of Alginet (Valencia, Spain), selected as a vulnerable zone within the Nitrates Directive. The demonstration activity aims to have a local impact on municipalities of 200 inhabitants or fewer, decreasing from current nitrate concentrations close to 50 mg/…
Managing Municipal Solid Waste: Energetic and Environmetal Comparison among different options
2001
Goal. This research aims to assess the environmental effects of integrated strategies in a municipal waste management system. In particular, analysis is focused on a waste stream in Palermo, where landfill involves the prompt disposal of the most waste after collection. The current local management system is compared with two integrated waste management alternatives. Both the options comply with Italian regulations, but each one predicts adopting the available technologies in different ways. Methods and objectives. Energetic and environmental balances are carried out in each management system referring to local waste composition in order to quantify energy consumption, the recovery of mater…