Utilization of Chlorella pyrenoidosa for Remediation of Common Effluent Treatment Plant Wastewater in Coupling with Co-relational Study: An Experimental Approach

• Published in: Bulletin of environmental contamination and toxicology Vol. 108; no. 3; pp. 507 - 517
• Main Authors: Kothari, Richa, Pandey, Arya, Ahmad, Shamshad, Singh, Har Mohan, Pathak, Vinayak V., Tyagi, V. V., Kumar, Kapil, Sari, Ahmet
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-03-2022; Springer Nature B.V
• Subjects: Algae; Aquatic Pollution; Biofuels; Biomass; Cadmium; Carbohydrates; Chlorella; Chlorella pyrenoidosa; Chromium; Copper; Earth and Environmental Science; Ecotoxicology; Effluent treatment; Effluents; Environment; Environmental Chemistry; Environmental Health; Heavy metals; Lead; Manganese; Metals, Heavy - analysis; Nickel; Pollution; Remediation; Soil Science & Conservation; Waste Water; Waste Water Technology; Wastewater treatment; Water Management; Water Pollution Control; Water Purification; Water treatment; Zinc; Pearson correlation co-efficient; Common effluent treatment plant wastewater; Average removal rate; Heavy metals
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/s00128-021-03292-7

Earlier investigations on biological methods of wastewater treatment have revealed that algal based wastewater treatment could be a green, cost effective and efficient approach for the removal of heavy metals. So, this study aimed to assess the potential of microalga
Chlorella pyrenoidosa
for remediation of heavy metals (Cr, Cu, Pb, Zn, Cd, Mn, and Ni) from varying concentration (25%, 50%, 75 and 100%) of wastewater collected from Common Effluent Treatment Plant. Heavy metals such as Cr, Cu, Pb, Zn, Cd, Mn, and Ni have been removed significantly from the wastewater, with percentage removal ranging from 73%, 60%, 75%, 66%, 87%, 83%, and 74% with 50% test solution, 57%, 59%, 70%, 56%, 72%, 66%, and 62% with 75% test solution, and 47%, 55%, 56%, 71%, 61%, 77%, and 72% with 100% test solution respectively. Studies on biochemical assay (protein, carbohydrate, and pigment) of
Chlorella pyrenoidosa
were also an important part of the present investigation to understand the interaction of heavy metals with algal biochemical compounds using Pearson correlation co-efficient. Biomass grown in CETP wastewater can be used for synthesis of various fruitful value-added end products like bio-diesel, pharmaceutical products, cosmetic products, bio-adsorbent etc.