Waste Herbal and Black Tea as a Novel Adsorbent for Detoxification of Pharmaceutical Effluent (original) (raw)
2020, Journal Medicin Discavery
The metal bio-adsorption is the removal of metal ions by inactive, nonliving biomass due to highly attractive forces present between them. The use of Agro-industrial wastes as raw materials to reduce cost production and pollution. The method designed based on Agricultural Waste as a compost and bio-adsorbent for detoxification of Heavy Metals and Toxic contaminations from soils. In current study the potential of conventional beverage black tea residue which is thrown away in many houses and produced by an infusion of leaves of the evergreen shrub Camellia sinensis, a member of the aceae family and also one of popular herbal tea, sage leaves(Salvia officinalis)which mostly consumed by people due to medicinal properties. Some factors and various parameters like initial concentration, pH, contact time, temperature, agitation speed and bio-adsorbent dose were studied. One way analysis of variance (ANOVA) was used for data analysis to measure the variations of metal concentrations using SPSS 22.0 software. Effect of various pH; temperature; dose of S. officinalis in comparison of black tea residue after infusion of 10 minutes separated and studied on remediation and detoxification of contaminated wastewater effluent from pharmaceutical laboratories effluents in different contact times and initial concentrations, particle size and agitation speed were studied . The samples were analyzed by standardized international protocols. The best results of cadmium and cobalt removal obtained by S. officinalis (0.5%) while black tea residues (0.5%) after 2 weeks revealed the best results. Further increase in contact time more than 48 hours did show significant increase in bio-adsorption potential and agitation factor showed a significant role (p < 0.001) in adsorption process. The results of current study revealed that using S. officinalis and black tea residue have the high potential of removing and decreasing cadmium, cobalt and nickel concentrations significantly (p< 0.03) from wastewater but the black tea bio-mass has significant more potential (p < 0.05) in removal of Cadmium and Cobalt
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