Utilización de nanocelulosa en tratamientos avanzados de aguas residuales
Nowadays, there is a growing concern in the different industrial sectors and governments about the dumping of metals to water bodies. Both uncontrolled waste discharge and poorly treated industrial effluents suppose more than 90% of the total metal sources in natural water bodies in some regions. Th...
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| Format: | Doctoral thesis |
| Publication date: | 2024 |
| Country: | España |
| Institution: | Universidad Complutense de Madrid (UCM) |
| Repository: | Docta Complutense |
| Language: | English |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/104599 |
| Online Access: | https://hdl.handle.net/20.500.14352/104599 |
| Access Level: | Open access |
| Keyword: | 628.3(043.2) Aguas residuales Sewage Química física (Química) 2307 Química Física |
| Summary: | Nowadays, there is a growing concern in the different industrial sectors and governments about the dumping of metals to water bodies. Both uncontrolled waste discharge and poorly treated industrial effluents suppose more than 90% of the total metal sources in natural water bodies in some regions. These contaminants cause carcinogenicity, toxicity, and mutagenicity in nature. Their removal from the industrial effluents before their discharge is an economic, environmental and social priority. Currently this situation is aggravated by the increase in periods of drought that cause water scarcity. This would motivate many companies to look for efficient treatments to recycle contaminated process waters. The reduction of metal levels has a strong impact in the increase of reused water quality in industry. Tackling their removal from process waters is critical to preserve the process stability and the product quality. Together with the management of industrial effluents, the aspect of metal presence the wastes must also be addressed. Some of these contaminants are also critical metals whose reuse is essential, not only due to the environmental matter, but in terms of circular economy. Certain parts of the wasted electronic devices (e-waste) are mainly composed of these strategic metals. Their recovery would minimize the dependence on other countries in the supply of these metals. Hydrometallurgy is widely applied for metal recovery from e-wastes. In these processes, the sustainable treatment of the leachates to separate critical metals means a challenge for the industry. Looking towards these objectives, novel solutions are required to ensure the process feasibility and sustainability... |
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