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Resource Recovery from Industrial Process Streams by Membrane Integrated Technologies

Type of activity
Competitive project
Acronym
R2MIT
Funding entity
AGENCIA ESTATAL DE INVESTIGACION
Funding entity code
CTM2017-85346-R
Amount
280.720,00 €
Start date
2018-01-01
End date
2020-12-31
Keywords
Recuperacion, adsorción, biomoleculas antioxidantes naturales, electrodialysis, integration, ion exchange, membranes, metales, metals, nanofiltration, natural bioactive molecules, procesos de membranas, recursos, resource recovery, tierras raras
Abstract
Scope: One of the main problems facing our society is the reduction of natural resources due to the increase of population. The Recovery of Resources (RR) from secondary sources (e.g. industrial and urban wastes) has been identified as solution to salve this problem. The rcovery of resources from secondary sources faces the following challenges: a) the development of new processing trains as the composition of the raw starting materials are different to primary ones; b) the need for selectiva extraction and leaching steps using more green chemicals); e) to have highly selectiva separation tehniques by integrating new sorbents and ion exchnage materials, and integration of membrane separation processes (NF, IXM-ED, DO); d) to assure mínimum risk to the recovered resources as they would be introduced in the human cycles, d) to achieve the reduction of the wastes generated and the reduction of their toxicity to minimiza the impact on the environmental compartments.
General Objectives: To develop integrated processes of separation, concentration, purification to valoriza both inorganic and organic waste streams to probe de concept of waste to resources and products.This objective will be exemplezed by five different model-systems examples.
To achieve this global objective the following specific sub-objectives have been defined:
- To identify and optimiza extraction processes (reagents, composition, temperature, pretreatment) to selectively extrae! added value metals from inorganic wastes (mining. metallurgical, urban wastes) and added-value natural active molecules (e.g. anti.oxidants) from organic wastes (agro, food and beverage)
- To measure and integrate the experimental transport and rejection data of inorganic and organic salutes (ions and non-charged species) with theoretical models to predict the behaviour of multi-to mono-charge ions separation with nanofiltration (NF) and Ion exchange membranas (IXM) (Difussion dialysis (DO), electrodialysis (ED) and bipolar electrodialysis (BPMED)).
- To evaluate the integration of diffision dialysis and nanofiltration to recovar strong acids (H2S04) and to remove metallic (Fe, Cu, Cd, Ni, Al) and non-metallic (As, Se, Sb).
- To evaluate the integration of ion exchange nanofiltration and selectiva ion exchange membranas to recovar H2S04, and to remove metallic (Fe, Cu, Cd, Ni, Al) and non-metallic (As, Se).
- To achieve the selective leaching of Cu(II) and Zn(II) and Rare Earth Elements (REE) from threee model industrial (copper metallurgy slags) and urban waste (municipal waste incineration botton ash, lamps and fluorescents).
- To evaluate the integration of IEX electrodialysis and selectrodialysis for the selectiva purification from As, Pd and Hg and the recovery of valuable metals (Cu and Zn) by electrowinning (EW).
- To integrate of selectiva hydrophobic hollow fiber membranas and IX membrane electrodialysis for concentration and purification of rich ammonium streams to produce liquid fertilizers (ammonium nitrate and ammonium phiosphate)
- To integrate selectiva extraction techniques of recovery of antioxidants from agro-food beverage wastes with sorption

Participants