Reduction of toxic elements in marine environment using nano adsorbent materials V. Sathish Kumar a,⇑ , R. Vidhyasri b , P.R. Dhevasenaa c , O. Ganeshbabu d a Department of Civil Engineering, Government College of Engineering, Dharmapuri, India b Department of Civil Engineering, Dhanalakshmi Srinivasan College of Engineering and Technology, Chennai, India c Department of Civil Engineering, Government College of Engineering, Srirangam, Trichy, India d Department of Civil Engineering, University V.O.C College of Engineering-Tuticorin, Tuticorin 628008, Tamil Nadu, India article info Article history: Received 13 June 2020 Accepted 8 July 2020 Available online xxxx Keywords: Heavy metals Toxic Nano adsorbent Anomalies Biodegradable abstract Due to large scale industrialisation and indiscriminate discharge of effluents with high BOD, sulphuric acid, oil, toxic metals and particulate matter reach the aquatic environment, either directly or indirectly. Living organisms consist less than one percent of heavy metals, and their different density cause to some disorders. Surface waters and also acidic rains can transfer these metals to oceans via washing polluted environment. Heavy metals naturally exist in very little amount in watery places. Metal pollution of the sea is less than other types of water pollution but its effects on marine ecosystems and humans are very extensive. Industrial wastes in aquaculture because toxic effects in aquatic organisms especially in fishes. Aquatic organisms absorb the pollutants directly from water and indirectly from food chains. Some of the toxic effects of heavy metals on fishes and aquatic invertebrates are; reduction of the developmental growth, increase of developmental anomalies, reduction of fishes survival- especially at the beginning of exogenous feeding or even cause extinction of entire fishes population in polluted reservoirs. The objective of this project is to investigate the heavy metals in industrial effluents and reducing it by using Nano Adsorbent of Vetiveriazizanioides. This method is more efficient than any other method for reduc- ing heavy metals from industrial effluents, because it is biodegradable. The results obtained from this attempt shows that heavy metals reduction by this Nano adsorbent is in the range of decreases like Hg > As > Cd > Pb. Ó 2020 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Confer- ence on Newer Trends and Innovation in Mechanical Engineering: Materials Science. 1. Introduction In this project we are considering the heavy metals releasing into marine environment due to various industrial activities. Rapid industrial development have led to the recognition and increasing understanding of interrelationship between pollution, public health and environment. Industrial development results in the generation of industrial effluents, and if untreated results in water, sediment and soil pollution. Industrial wastes and emission con- tain toxic and hazardous substances, most of which are detrimen- tal to human health. The key pollutants include heavy metals, chemical wastes and oil spills etc. Due to the discharge of large amounts of metal-contaminated wastewater, industries bearing heavy metals, such as Cd, Cr, Cu, Ni, As, Pb, and Zn, are the most hazardous among the chemical-intensive industries. Because of their high solubility in the aquatic environments, heavy metals can be absorbed by living organisms. Heavy metals from industrial processes are of special concern because they produce water or chronic poisoning in aquatic animals while some heavy metals are purely toxic with no cellular role, other metals are essential for life at low concentration but become toxic at high concentra- tions, high concentration of all heavy metals inhibits activity of sensitive enzymes. Heavy metals are not biodegradable and tend to be accumulated in organisms and cause numerous diseases and disorders. So, it is necessary to reducing these harmful heavy metals in industrial wastes. WintMyatShwe, Dr. Mya MyaOo, Dr. Su SuHlaing proposed syn- thesis of Fe3O4 (Iron Oxide) nanoparticles mixed with calcinated https://doi.org/10.1016/j.matpr.2020.07.154 2214-7853/Ó 2020 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Newer Trends and Innovation in Mechanical Engineering: Materials Science. ⇑ Corresponding author. E-mail addresses: aspro_sathish@hotmail.com (V. Sathish Kumar), vidhya. iitm@gmail.com (R. Vidhyasri), senadheva@gmail.com (P.R. Dhevasenaa), oganesh- babu@gmail.com (O. Ganeshbabu). Materials Today: Proceedings xxx (xxxx) xxx Contents lists available at ScienceDirect Materials Today: Proceedings journal homepage: www.elsevier.com/locate/matpr Please cite this article as: V. Sathish Kumar, R. Vidhyasri, P. R. Dhevasenaa et al., Reduction of toxic elements in marine environment using nano adsorbent materials, Materials Today: Proceedings, https://doi.org/10.1016/j.matpr.2020.07.154