Gaurav Saxena

Jawaharlal Nehru University,New Delhi,India, School Of Environmental Sciences, Researcher

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Babasaheb Bhimrao Ambedkar (Central) University (BBAU), Lucknow · 2013 - 2014
India · Lucknow, Uttar Pradesh (U.P.)
He is pursuing Ph.D in (Environmental Microbiology) particularly emphasizing on Bioremediation and Wastewater Microbiology

M. Sc. Environmental Microbiology
Department of Environmental Microbiology (DEM),
Babasaheb Bhimrao Ambedkar (Central) University (BBAU),
Jul 2011– Jul 2013
India - Lucknow, Uttar Pradesh (U.P.)

B. Sc. Industrial Microbiology, Zoology, Botany and Chemistry
Hemwati Nandan Bahuguna Garhwal (Central) University (HNBGU),
Jul 2007– Jul 2010
India - Srinagar (Garhwal) Uttarakhand (U.K.)

Fellowship: University Grant Commission (UGC) Fellowship (during Ph.D at BBAU), UGC, Government of India (GOI), India

Life Member, Association of Microbiologists of India (AMI), India
Address: Department of Environmental Microbiology (DEM), Babasaheb Bhimrao Ambedkar (Central) University, Lucknow - 226 025
Uttar Pradesh, India

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Book Chapters by Gaurav Saxena

Constructed Wetlands: An emerging phytotechnology for the degradation and detoxification of industrial wastewaters

Book Chapter

Bioremediation, An Ecosustainable Green Technology: Its Applications and Limitations

by Gaurav Saxena and Pankaj Chowdhary

Book Chapter

Pollutants in Tannery Wastewater, Pharmacological Effects, and Bioremediation Approaches for Human Health Protection and Environmental Safety

Book Chapter

Organic and Inorganic Pollutants in Industrial Wastes, Ecotoxicological Effects, Health Hazards, and Bioremediation Approaches

Book Chapter

Role of laccase enzyme in bioremediation of industrial wastes and its biotechnological application

by Gaurav Saxena and Pankaj Chowdhary

Xenobiotics: Environmental pollution, health hazards, its biodegradation and future challenges

by Gaurav Saxena, Pankaj Chowdhary, and akash mishra

Organic pollutants in tannery wastewater and bioremediation approaches for environmental safety

Persistent Organic Pollutants and Bacterial Communities Present during the Treatment of Tannery Wastewater

by Gaurav Saxena and Ram Bharagava

Microbes: An Eco-Friendly Tools for the Treatment of Industrial Wastewaters

Industries play a major role in the economic growth of developing countries. However, these are a... more Industries play a major role in the economic growth of developing countries.
However, these are also the major source of environmental pollution because
all types of industries discharge a huge volume of wastewater into the
environment, which causes serious soil and water pollution as well as serious
health threats in living beings. There are many types of industrial
wastewaters based on different industries such as distilleries, tanneries,
textile, pulp and paper industries, pharmaceuticals, electroplating, iron and
steel, mine and quarries, etc. Each industry produces its own particular
combination of organic and inorganic pollutants such as melanoidins,
lignin, dyes, pesticides, pigments, phenols, chlorophenol, toxic heavy metals
and a many recalcitrant pollutants. Industrial wastewaters contains a
variety of organic and inorganic pollutants and if discharged into the
environment without adequate treatment, causes serious environmental
problems and health hazards in all living organisms. Therefore, proper
treatment of industrial wastewaters is essential for environmental safety.
Thus, this chapter provides the detail knowledge on the nature and
characteristics of different industrial wastewaters, major organic and
inorganic pollutants present in different industrial wastewaters, their
toxicological effects in environment and health hazards as well as various
treatment approaches using microbes for the sustainable environment. In
addition, the advances, merits, and demerits of various microbial treatment
methods used for the treatment of industrial wastewaters are also discussed.

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Phytoremediation of Environmental Pollutants: An Eco-Sustainable Green Technology to Environmental Management

Phytoremediation is the man-engineered use of plants including grasses, forbs, and woody species ... more Phytoremediation is the man-engineered use of plants including grasses, forbs, and woody species to remove, contain, immobilize or render harmless such as environmental pollutants viz. environmental toxin, heavy metals, trace elements, organic compounds, and radioactive compounds in soil or water which create a danger for all living beings and deduce agriculture farming efficacy. Several hyperaccumulating plants could possibly minimize soil concentrations of toxic inorganics or organics (which may be sequestered in plant biomass) in concern with rhizosphere microorganisms, to the extent that residual concentrations would be environmentally acceptable and no longer considered hazardous. It can be the eco-sustainable alternative to the traditional remediation technologies viz. incineration, thermal vaporization, solvent washing, or other soil washing techniques, which essentially kill the biotic component of soil and can drastically change its chemical and physical properties as well, generate a relatively nonviable solid waste. It actually benefits the soil, leaving an improved, functional, soil ecosystem at costs estimated at approximately one-tenth of those currently adopted technologies. Being a solar-driven technology that often favored over more conventional methods of clean-up due to its low cost, low impact, aesthetically valuable and wider public acceptance. It is still poorly developed, particularly the phytoextraction of heavy metals. Application of genetically engineered plants to remove the toxic metal pollutants from the environment and the long-term implications must be investigated. Continue research efforts will greatly expand the scope and efficacy of phytoremediation. This chapter entails the different phytoremediation technologies, mechanism of metal hyperaccumulation, plants involved, advantages, disadvantages and applications.

Papers by Gaurav Saxena

Environmental Pollution, Toxicity Profile and Treatment Approaches for Tannery Wastewater and Its Chemical Pollutants

by Gaurav Saxena and Ram Bharagava

Leather industries are key contributors in the economy of many developing countries, but unfortun... more Leather industries are key contributors in the economy of many developing countries, but unfortunately they are facing serious challenges from the public and governments due to the associated environmental pollution. There is a public outcry against the industry due to the discharge of potentially toxic wastewater having alkaline pH, dark brown colour, unpleasant odour, high biological and chemical oxygen demand, total dissolved solids and a mixture of organic and inorganic pollutants. Various environment protection agencies have prioritized several chemicals as hazardous and restricted their use in leather processing however; many of these chemicals are used and discharged in wastewater. Therefore, it is imperative to adequately treat/detoxify the tannery wastewater for environmental safety. This paper provides a detail review on the environmental pollution and toxicity profile of tannery wastewater and chemicals. Furthermore, the status and advances in the existing treatment approaches used for the treatment and/or detoxification of tannery wastewater at both laboratory and pilot/industrial scale have been reviewed. In addition, the emerging treatment approaches alone or in combination with biological treatment approaches have also been considered. Moreover, the limitations of existing and emerging treatment approaches have been summarized and potential areas for further investigations have been discussed. In addition, the clean technologies for waste minimization, control and management are also discussed. Finally, the international legislation scenario on discharge limits for tannery wastewater and chemicals has also been discussed country wise with discharge standards for pollution prevention due to tannery wastewater.

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Microbial indicators, pathogens and methods for their monitoring in water environment

by Gaurav Saxena and Ram Bharagava

Water is critical for life, but many people do not have access to clean and safe drinking water a... more Water is critical for life, but many people do not have access to clean and safe drinking water and die
because of waterborne diseases. The analysis of drinking water for the presence of indicator
microorganisms is key to determining microbiological quality and public health safety. However,
drinking water-related illness outbreaks are still occurring worldwide. Moreover, different indicator
microorganisms are being used in different countries as a tool for the microbiological examination of
drinking water. Therefore, it becomes very important to understand the potentials and limitations of
indicator microorganisms before implementing the guidelines and regulations designed by various
regulatory agencies. This review provides updated information on traditional and alternative indicator
microorganisms with merits and demerits in view of their role in managing the waterborne health
risks as well as conventional and molecular methods proposed for monitoring of indicator and
pathogenic microorganisms in the water environment. Further, the World Health Organization (WHO)
water safety plan is emphasized in order to develop the better approaches designed to meet the
requirements of safe drinking water supply for all mankind, which is one of the major challenges of
the 21st century.

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