Biological-based methods for the removal of volatile organic compounds (VOCs) and heavy metals

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REVIEW ARTICLE

Biological-based methods for the removal of volatile organic compounds (VOCs) and heavy metals Mukesh Meena 1

&

Priyankaraj Sonigra 1 & Garima Yadav 1

Received: 3 June 2020 / Accepted: 4 October 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020

Abstract The current scenario of increased population and industrial advancement leads to the spoliation of freshwater and tapper of the quality of water. These results decrease in freshwater bodies near all of the areas. Besides, organic and inorganic compounds discharged from different sources into the available natural water bodies are the cause of pollution. The occurrence of heavy metals in water and volatile organic compounds (VOCs) in the air is responsible for a vast range of negative impacts on the atmosphere and human health. Nonetheless, high uses of heavy metals for human purposes may alter the biochemical and geochemical equilibrium. The major air contaminants which are released into the surroundings known as VOCs are produced through different kinds of sources, such as petrochemical and pharmaceutical industries. VOCs are known to cause various health hazards. VOCs are a pivotal group of chemicals that evaporate readily at room temperature. To get over this problem, biofiltration technology has been evolved for the treatment of heavy metals using biological entities such as plants, algae, fungi, and bacteria. Biofiltration technology is a beneficial and sustainable method for the elimination of toxic pollutants from the aquatic environment. Various types of biological technologies ranging from biotrickling filters to biofilters have been developed and they are cost-effective, simple to fabricate, and easy to perform. A significant advantage of this process is the pollutant that is transformed into biodegradable trashes which can decompose within an average time period, thus yielding no secondary pollutants. The aim of this article is to scrutinize the role of biofiltration in the removal of heavy metals in wastewater and VOCs and also to analyze the recent bioremediation technologies and methods. Keywords Volatile organic compounds . Biological methods . Bioremediation . Toxic pollutants . Biofiltration . Phytoremediation

Abbreviations WHO World Health Organization Hg Mercury Pb Lead

Responsible editor: Elena Maestri * Mukesh Meena [email protected]; [email protected] Priyankaraj Sonigra [email protected] Garima Yadav [email protected] 1

Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan 313001, India

As Zn Cu Ni Co Cd Cr Fe Sn Se H2S VOCs BTF mm MBBR PBBR PCBs PAHs

Arsenic Zinc Copper Nickel Cobalt Cadmium Chromium Iron Stannum Selenium Hydrogen sulfide Volatile organic compounds Biotrickling filters Millimeter Moving bed biofilm reactor Packed bed bioreactor Polychlorinated biphenyls Polycyclic aromatic hydrocarbons

Environ Sci Pollut Res

Introduction Most of the earth’s surface is covered with water while