Simultaneous Growth of Spirulina platensis and Removal of Hardness in Van Lake Water

Abstract

In this study, batch experiments were carried out to investigate simultaneous growth of Spirulina platensis and removal of hardness in the Van Lake Water (VLW). Laboratoryscale studies showed ample Spirulina growth observed in VLW when exposed to light. Spirulina was the only algal specimen inoculated in the water during the study. VLW percentages were varied between 0.1 and 100% while pH values were 8.7-10.42 in the flasks. On a dry-weight basis the biomass concentration was 1.18 g L À1 at pH 10 after 17 days of incubation in the VLW. The increase of pH to above 10.38 associated with Spirulina growth resulted in the precipitation of hardness causing compounds while providing 70% hardness removal from the VLW medium. Experimental results indicated that the proposed method can be used to design batch systems for producing S. platensis and removal of hardness from the VLW.

Biosorption of Zinc and Nickel and Its Effect on Growth of Different Spirulina Strains

“…Algal strains like Spirulina have been investigated for its potential as a bioremediation agent, although little information is available to support its use for bioremoval of heavy metals . Several researchers reported that Spirulina strains contain a variety of functional groups such as carboxyl, hydroxyl, sulfate, and other charged groups which are responsible for metal binding and thus these strains are useful for low cost industrial wastewater treatment .…”

Simultaneous use of sodium nitrate and urea as nitrogen sources improves biomass composition of Arthrospira platensis cultivated in a tubular photobioreactor

“…A. platensis is a source of high levels of proteins , polyunsaturated fatty acids (γ‐linoleic acid) , and pigments such as chlorophyll‐a . It can be used for environmental bioremediation as well as for a sustainable process of reusing its spent culture medium for new cultivations in batch or continuous processes . Furthermore, A. platensis biomass can be used as energy source .…”