LODI , Alessandra

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

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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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...

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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...

Nel presente lavoro sono presentati i risultati ottenuti dal trattamento biologico, utilizzando un ceppo puro di Pseudoonas putida, di una corrente gassosa contenente fenolo in concentrazioni variabili; tali risultanze evidenziano come il sistema utilizzato sia in grado di garantire elevate efficienze di rimozione.

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...

The present work was undertaken in order either to determine the removal of single heavy metals (namely, Cd2+, Cu2+, Zn2+, Cr3+, Ag+, Ba2+, Al3+) by use of re-hydrated dead biomass of Spirulina platensis, or to evaluate the effect of the presence of cadmium, as a competing cation, on the biosorption of the other metals.

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.

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.

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.

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Living cells of a strain of Sphaerotilus natans are employed to remove Cr(III) from acid wastewater.

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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.

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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.

A biological system for the removal of NOx from flue gas was investigated using the cyanobacterium Spirulina platensis.