Search results for "Brine"

Valorization of surface-water RO brines via Assisted-Reverse Electrodialysis for minerals recovery: performance analysis and scale-up perspectives

2021

Reverse Osmosis (RO) plays a key role in seawater and brackish water desalination to fulfill the growing demand for fresh water. In recent years, RO has also been more and more adopted for the treatment and potabilization of surface waters, leading to two main problems: (i) the depletion in minerals of the product water, making it aggressive and unsuitable for drinking purposes and (ii) the production of a concentrated brine requiring proper disposal. Permeate remineralization post-treatments include pH adjustment and addition of minerals, such as bicarbonates, calcium and magnesium, which are essential for human health and required to meet drinking water guidelines. However, such solutions…

Evaluación del significado cultural de un sitio histórico: Elca, la casa del poeta Francisco Brines

2022

El concepto de bien cultural con el tiempo se ha ido ampliando del monumento a su entorno, al territorio, y ha pasado de comprender elementos materiales a abarcar también los significados que se relacionan con el mismo. En este contexto cabe entender la figura de Sitio Histórico o lugar cultural, en la que se reconocen de forma preferente los valores inmateriales relacionados con un espacio sobre los elementos materiales, que pueden incluso llegar a resultar irrelevantes. Con motivo de la incoación de expediente para declarar la casa del poeta Francisco Brines como Bien de Interés Cultural (BIC) en la categoría de Sitio Histórico, hemos aplicado la metodología propuesta por la Carta de Burr…

Pleistocene allopatric differentiation followed by recent range expansion explains the distribution and molecular diversity of two congeneric crustac…

2021

AbstractPleistocene glaciations had a tremendous impact on the biota across the Palaearctic, resulting in strong phylogeographic signals of range contraction and rapid postglacial recolonization of the deglaciated areas. Here, we explore the diversity patterns and history of two sibling species of passively dispersing taxa typical of temporary ponds, fairy shrimps (Anostraca). We combine mitochondrial (COI) and nuclear (ITS2 and 18S) markers to conduct a range-wide phylogeographic study including 56 populations of Branchinecta ferox and Branchinecta orientalis in the Palaearctic. Specifically, we investigate whether their largely overlapping ranges in Europe resulted from allopatric differe…

Lab-scale investigation of a pressure retarded osmosis module fed by "non-conventional" salinity gradient

2015

Aim of this work has been to investigate the feasibility of PRO technology for power generation from saline streams originated by different water treatments plants, namely brine from a thermal desalination plant and fresh water from a sewage treatment plant.

Pressure Retarded Osmosis: a Membrane Process for Environmental Sustainability

2016

Salinity Gradient Power (SGP) based on the controlled mixing between two solutions at different salinities is a viable alternative to produce power from renewable sources. Pressure Retarded Osmosis (PRO) is one of the most promising technologies proposed so far for the exploitation of such energy source. Apart from the typical source of salinity gradients, namely river water and seawater, more and more interest has been raised recently towards the use of non-conventional saline solutions. In this work, water originating from a sewage treatment plant is used as the dilute solution (feed solution), while brine exiting from a desalination plant is used as the concentrate (draw solution), thus …

Operation and perspectives of the first reverse electrodialysis pilot plant fed with brackish water and brines

2015

This work describes the performance of the first RED prototype plant fed with real brackish water and saltworks brine

Study of green Sicilian Table Olive Fermentation Through Microbiological, Chemical, Hs-Spme and Sensory analyses

2011

Advanced energetics of a Multiple Effects Evaporation (MEE) desalination plant Part I: 2nd principle analysis by a zooming representation at single-e…

2010

This paper represents the Part I of a paper in two parts, aimed at proposing a 2nd principle and thermoeconomic analysis for a Multiple Effects Evaporation (MEE) process and discussing solutions for optimization and energy saving. After a brief analysis of the thermochemical fundamentals of desalination, the minimum theoretical work of separation is introduced to represent a reference condition for the assessment of plants' efficiency. A forward feed MEE configuration is then analysed, abandoning the conventional approach to “at overall plant-level”-analysis; a zooming strategy, based on focusing on the physical model of a generic stage (i.e. effect), is preferred to best recognize the marg…

Modelling and bench scale investigation of inclined dense jets

2002

Electrodialysis with bipolar membranes for the generation of NaOH and HCl solutions from brines: an inter-laboratory evaluation of thin and ultrathin…

2022

The SEArcularMINE project aims to recover critical raw materials (CRMs) from brines from saltworks, thus facing a CRM shortage within Europe. To promote a fully circular scheme, the project valorises concentrated brines using electrodialysis with bipolar membranes (EDBM) to generate the required amounts of reactants (i.e., acids and bases). Regarding the performances of new non-woven cloth ion-exchange membranes (Suez): (i) an ultra-thin non-woven polyester cloth and (ii) a thin polypropylene cloth acting as the support structures were assessed. Additionally, the anion layer includes a catalyst to promote the water dissociation reaction. The effect of current density (100, 200, and 300 A m&…