Degrading heavy metals from waste water in the presence of efficient cyanobacteria

The current study illustrates the degradation of heavy metals in the presence of cyanobacteria by different waste water. The waste water samples were collected and cyanobacteria also isolated and identified. Totally, there were 22 isolates of cyanobacteria such as Arthrospira jenneri, Aphanocapsa koordersi, A. platensis, Gloeocapsa crepidium, G. gelatinosa, G. livida, G. punctata, G. samoensis, G. sanguine, Hyella caespitose, Oscillatoria acuminate, O. amoena, O. homogenea, O. laetevirens, O. minimus, O. pseudogeminata, O. schultzii, O. subbrevis, O. trichoides, Spirulina laxissima, S. meneghiniana and S. subtilissima. The cyanobacteria incorporate with waste water to interrupt and degrade the heavy metals in various waste water treatments such as dairy waste water, kitchen waste water, fish pond discharge and municipal waste water. Screening and effect of cyanobacterial treatment of wastewater of BOD, COD, TN and TP were analysed. The maximum percentage of degradation were determined in the kitchen waste water and fish pond discharge, whereas biochemical oxygen demand, chemical oxygen demand, total nitrogen, and total phosphorus by the selected potential cyanobacteria like Oscillatoria trichoides and Spirulina laxissima. The degradation of heavy metals such as Cu2+, Fe2+, Zn2+ and Pb2+. The maximum degradations were recorded at 99.88% and 99.84% for Zn2+ O. trichoides and S. laxissima in kitchen waste water and fish pond discharge respectively. The significance of variance at a confidence level of p<0.05 and p<0.01 is recorded. The use of cyanobacteria performs a variety of tasks in the assembly of excess food, the treatment of wastewater, and the production of valuable biomass, all of which have a variety of uses. For the cyanobacteria O. trichoides and S. laxissima were suitable candidature for the healthy environment and future enduovurs. published by the Journal of Biodiversity and Environmental Sciences | JBES