11 documents found, page 1 of 2

Phosphorus recovery from the end-products of the anaerobic digestion of municip...

Electrodialytic process combined with gas permeable membrane for phosphorus and...

A novel approach for nutrients recovery from municipal waste as biofertilizers ...

The recovery of valuable materials from waste fits the principle of circular economy and sustainable use of resources, but contaminants in the waste are still a major obstacle. This works proposes a novel approach to recover high-purity phosphorus (P) and nitrogen (N) from digestate of municipal solid waste based on the combination of two independent membrane processes: electrodialytic (ED) process to extract P...

Polypyrrole-TiO2 composite for removal of 4-chlorophenol and diclofenac

In this work, we successfully synthesized TiO2-polypyrrole (PPy) composite material via polymerization method using the sulfuric acid (H2SO4) as an oxidizing agent. Different characterization techniques, including electrostatic force microscopy, confirmed that TiO2 was intimately attached on PPy. The photocatalytic activity of PPyTiO2 composite was studied experimentally for the conversion of diclofenac (DCF)– ...

Improving the energy efficiency of an electrodialytic process to extract phosph...

This work assesses the possibility of energy optimisation during the electrodialytic extraction of phosphorus from the municipal solid waste digestate. Strategies tested for energy optimisation consisted in (i) using a dualstage extraction approach; (ii) replacement of continuous stirring by pulse stirring and; (iii) utilisation of pulse electric current as an alternative to a constant current. Experiments were...

Synthesis of PPy-ZnO composite used as photocatalyst for the degradation of dic...

Improving the energy efficiency of an electrodialytic process to extract phosph...

This work assesses the possibility of energy optimisation during the electrodialytic extraction of phosphorus from the municipal solid waste digestate. Strategies tested for energy optimisation consisted in (i) using a dualstage extraction approach; (ii) replacement of continuous stirring by pulse stirring and; (iii) utilisation of pulse electric current as an alternative to a constant current. Experiments were...

Testing new strategies to improve the recovery of phosphorus from anaerobically...

BACKGROUND: This work is focused on phosphorus (P) recovery from the anaerobically digested organic fraction of municipal solid waste (referred to as ‘digestate’) as a fertilizer. The main purpose was to propose and test modifications to the electrodialytic process that increase P extraction, improve the quality of the fertilizer by removing contaminants, and reduce hydraulic retention time to allow for smaller...

Ambiente e direitos humanos

Ambiente e Direitos Humanos é o lema da Conferência Internacional de Ambiente em Língua Portuguesa (CIALP), assumindo que a proteção dos direitos humanos e a proteção do ambiente estão intrinsecamente ligados e se reforçam mutuamente. A pertinência deste princípio tem sido reconhecida no contexto internacional e tem vindo a moldar a evolução do entendimento do que são os direitos humanos e os direitos do ambien...

Extraction of phosphorus and struvite production from the anaerobically digeste...

In this work a first attempt was carried out to recover phosphorus from the organic fraction of municipal solid waste (OFMSW) and to transform it into a fertilizer. Recovery of phosphorus was carried out by the electrodialytic process combined with struvite formation. Experiments were carried out in an electrodialytic cell, using either distilled water or nitric acid, and extraction times ranged from 1 to 16 da...