SOLISIO , Carlo

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In the present work, hydrated biomass of Spirulina platensis has been used for copper removal from aqueous solution.

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Therefore, in the present communication, the removal of copper (II) from the same industrial wastewater, by foam electrodes in a single-pass cell, is described

A batch recycle removal of copper ions from an industrial effluent by means of copper foam cathodes was tested. A constant current of 750 A was applied to the cell in order to perform the reduction. Copper depletion was investigated at different solution flow rates and a removal greater than 98% was obtained with a flow rate of 1000 l:h. The...

Raw and methylated biomass of Spirulina platensis was employed in chromate batch adsorption tests at pH range 1-7. The acid conditions seemed to favour the removal of chromium (Cr) with a yield of 87.0 and 97.6% by using raw and methylated biomass, respectively. However, the chromate and total chromium determination, carried out in the same...

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Many studies indicate that flow-through reactors with three-dimensional electrodes can be successfully used for metal removal from dilute streams, but they present high capital costs. So the simplest titanium and stainless steel AISI 904L plate were chosen as cathode materials in tank reactors. A three cell plant was used for cathodic...

Dry biomass of Spirulina platensis re-hydrated for 48 h was employed as a biosorbent in tests of cadmium(II) removal from water. Various concentrations of biomass (from 1 to 4 g l−1) and metal (from 100 to 800 mg l−1) were tested. Low biomass levels (Xo ≤ 2 g l−1) ensured metal removal up to 98% only at Cdo = 100 and 200 mg l−1, while Xo ≥ 2.0...

Adsorption technologies are widely employed in many important separation processes, especially in fine chemistry and environmental control. Thus, the increasing pressure for cost reduction in the operation of industrial plants, which calls for the use of efficient design techniques based on scientifically advanced methods, has led to the...

The removal of cadmium and chromium, at comparable initial molar concentration (1, 2, 4 mM) has been studied employing progressively increasing concentrations of S. platensis dry biomass.

In this work the adsorption experiments were carried out in the pH range 7–8, in order to focus exclusively the methylation influence on the biomass adsorption capacity in the absence of any hydrolysis reaction. In addition, since the final aim of this work will be the improvement of Cr(VI)-rich wastewater treatment, such conditions are needed...

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Dried and 48 h re-hydrated biomass of Spirulina platensis was employed as a biosorbent in tests of chromium(III) removal from water. Various concentrations of biomass (from 1 to 3 g l−1) and metal (from 25 to 200 mg l−1) were tested. Increasing and re-hydrating biomass allowed removing almost entirely up to Cro = 100 mg l−1 of Cr3+ (95% of...

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A culture of Sphaerotilus rlatans (NCIIMB 1 1196) was used for cadmium removal from acidic solutions, simulating the composition of industrial wastewaters.

A strain of Zoogloea ramigera was used in batch tests for Cd, Zn and Cr removal from solutions simulating the composition of industrial wastewaters.

This preliminary study aims at evaluating the efficiency of a bench-scale tubular photobioreactor by means of batch cultivations of Spirulina platensis under light-limited conditions. The most interesting feature of this plant configuration is the use of an airlift system for biomass re-cycling instead of traditional pumps to avoid the...

Adsorption tests were performed on two different exhausted oils to reduce their polluting and health hazard potential: a ''water-insoluble oil'', utilised for automotive engine lubrication, and an ''emulsified'' oil, used as coolant for metal-cutting tools.

Living cells of Sphaerotilus natans are used for heavy metal's (Cd, Zn, Cu, Ag, and Cr) removal from aqueous solutions simulating the polluting power of acid industrial wastewaters.

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