Competitive biosorption and phytotoxicity of chlorophenols in aqueous solution to Canna indica L

Divalent metal ion removal from aqueous solution by acid-treated and garlic-treated Canna indica roots

The biosorption of different metal ions (Cu, Zn, Ni, Pb and Co) by dried roots of Canna indica biomass was investigated using a batch sorption technique. The equilibrium retention capacities of the metal ions determined from the Langmuir isotherm showed that C. indica had the largest sorption capacity for Pb ions and the least sorption for Ni. The results also showed that garlic-treatment of C....

Biosorption of aqueous chromium(VI) by Tamarindus indica seeds.

The effectiveness of low cost agro-based materials namely, Tamarindus indica seed (TS), crushed coconut shell (CS), almond shell (AS), ground nut shell (GS) and walnut shell (WS) were evaluated for Cr(VI) removal. Batch test indicated that hexavalent chromium sorption capacity (q(e)) followed the sequence q(e)(TS) > q(e)(WS) > q(e)(AS) > q(e)(GS) > q(e)(CS). Due to high sorptive capacity, tamar...

Biosorption of Cd(II) and Ni(II) Ions From Aqueous Solution by Raw and Pre-Treated Cystoseira Indica Algae

Toxicity measurements in aqueous solution during ozonation of mono-chlorophenols.

The Microtox toxicity and Oxygen Uptake Rate (OUR) inhibition tests were conducted to monitor the variation of toxicity during ozonation of 2-chlorophenol (2-CP), 3-chlorophenol (3-CP) and 4-chlorophenol (4-CP) under neutral conditions. The results revealed that the oxidized 2-CP solution exhibited new toxicity to pure bacteria and mixed microorganisms in the early stage of ozonation. The large...

Sugar Transformation in Leaves of Canna Indica

It was previously demonstrated that, when solutions of hexose sugars such as glucose, fructose, or mannose are introduced into green leaves under aerobic conditions, an increase in sucrose is observed (l-3). The sucrose appears to be synthesized at the expense of the monosaccharides. Excised barley leaves infiltrated with 5 per cent glucose or fructose accumulated sucrose to a level of about 6 ...