Abstract
The uptake of cadmium by the seaweed Sargassum siliquosum was investigated over five consecutive cycles of adsorption and desorption with HCl as the desorbent. A large fraction of the cadmium loaded in the first cycle was gradually desorbed over the five cycles. The use of a much longer desorption time had no effect on this desorption trend. Only 25-34% of the uptake capacity of the fresh seaweed could be reused in subsequent cycles.
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Chitguppa, R., Chu, K. & Hashim, M. Reusability of seaweed biosorbent in multiple cycles of cadmium adsorption and desorption. Biotechnology Techniques 11, 379–383 (1997). https://doi.org/10.1023/A:1018448218589
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DOI: https://doi.org/10.1023/A:1018448218589