Model

In light of the United Nations Millennium Development Goals, a multivariate linear model was built to estimate the percent of each countries’ population having reasonable access to clean drinking water. The statistical program ARC [1] was used to determine which adequately transformed variables were

Salinity gradient power (SGP) is based on the chemical potential difference between concentrated and dilute salt solutions. Reverse electrodialysis (RED) can thus be used to produce electricity by a SGP–RED unit. In principle, a highly concentrated solution can be recovered from a seawater desalinat

As a means of optimizing desalination processes, site-specificity in the determination of seawater quality conditions is a crucial point for improving the overall energy efficiency of a seawater reverse osmosis (SWRO) process. To this end, field studies were carried out at 16 sampling sites along th

Surface water was purified by ultrafiltration membrane to produce drinking water. The membrane flux decreases with increasing turbidity and there is a somehow linear relationship between membrane flux and the log of turbidity. Mathematical model was built to predict the membrane flux based on this.

There are a great many drying processes and types of equipment, such as dryers with immersed channels; the main advantage of this type of dryer, and the reason why it is chosen by manufacturers, is the homogeneous distribution of the drying air, made possible by dihedrons. In our work, we have inves

As a biomass material, cotton was investigated for feasibility to be used as a cost-effective biosorbent for boron removal as the post-treatment in a desalination plant. Based on the batch tests, cotton demonstrated a good capacity of adsorption at a pH about 7. This capacity was found to increase w

Permeate flux decline is a major item when considering pressure driven membrane filtration. The decline is a result of the deposition of (dispersed) feed materials as a layer on the membrane surface. This means loss of production of permeate or, when applying a higher compensating pressure, loss of

The treatment of a rejection of tannery effluent was carried out on an organic nanofiltration membrane. The rejection was recovered from a leather manufacturing plant in the area of Algiers (Rouiba). The effluent of the bath of tanning and liming charged with chromium ions was the subject of this st

In light of broad use of the electrodialysis (ED) processes, it has become crucial to minimize its operating costs. The total cost of the ED process consists of energy, investment and maintenance costs. Energy cost increases linearly with the current density while the investment cost decreases with

Observations via a video camera of the behavior of the bubbles produced in a chlor-alkali membrane cell with parallel-plate electrodes during sodium chloride electrolysis allowed us to justify the use of 1D model for the calculation of current density distribution. Experimental current density measu