Reetika Shukla

Banaras Hindu University

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Virendra Kumar Mishra

Banaras Hindu University

Gurudatta Singh

Banaras Hindu University

Deepak Gupta

Banaras Hindu University

Anubhuti Singh

Banaras Hindu University

Mohd Aamir

Banaras Hindu University

Akanksha Gupta

Dr. Ram Manohar Lohia Institute of Medical Sciences

Vipin Kumar Singh

Central Institute of Medicinal and Aromatic Plants

Priyanka Singh

Banaras Hindu University

Rahul Bhadouria

University of Delhi

Prabhu Nath Shukla

Maharashtra Forest Department

Cooperative Institutions

Banaras Hindu University

Lovely Professional University

University of Delhi

Academy of Scientific and Innovative Research

Council of Scientific and Industrial Research

Institute of Medical Sciences

Indira Gandhi National Tribal University

National Botanical Research Institute

Indian Council of Agricultural Research

Chinese Academy of Sciences

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Elsevier eBooks (2020)

Mohd Aamir Bashir Adelodun Khyati Adlakha Waseem Ahmad Fidelis Odedishemi Ajibade

10.1016/b978-0-12-821199-1.00037-7

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Identification of Polymorphic Allozyme Markers for Assessing Genetic Variability in Golden Mahseer, Tor putitora

A. Gopalakrishnan Rajeev K. Singh Vindhya Mohindra Ranjana Peyush Punia D. Kapoor

Screening of thirty-two allozyme loci in Tor putitora yielded ten polymorphic loci, useful in determining genetic divergence in natural populations of the species. Samples from three different Indian rivers viz. the Satluj, Ganga and Garua were studied with the identified allozyme loci, to assess their suitability for genetic diversity analysis in T. putitora . The observed heterozygosity per locus varied from 0.0840 (Satluj) to 0.1245 (Ganga). The significant genotype heterogeneity was observed between the sample sets (P<0.05). The identified loci exhibited significant potential to determine population structure of T. putitora across its natural range of distribution.

Genetic divergence

Genetic Variability

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Application of constructed wetlands for the safe and sustainable treatment of emerging contaminants

Elsevier eBooks (2021)

Gurudatta Singh Deepak Gupta Reetika Shukla Virendra Kumar Mishra

10.1016/b978-0-12-823828-8.00004-9

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Sources, fate, and impact of pharmaceutical and personal care products in the environment and their different treatment technologies

Elsevier eBooks (2020)

Gurudatta Singh Anubhuti Singh Priyanka Singh Akanksha Gupta Reetika Shukla

Personal care

Pharmaceutical Care

10.1016/b978-0-12-821199-1.00029-8

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Citations (8)

Inhibition of Soil Methane Oxidation by Fertilizer Application: an Intriguing but Persistent Paradigm

Environmental Pollution and Protection (2018)

Virendra Kumar Mishra Reetika Shukla Prabhu Nath Shukla

Methane (CH 4 ) is one of the most important greenhouse gases and is oxidized by the methanotrophic bacteria in the soil.Present work is an effort to review the available information in this regard and present them in a systematic way.In this review, we concluded that low NH 4 + concentration can be supportive to the methane oxidation and growth of the methanotrophs.However, their high contents suppress the methanotrophic bacteria by inhibiting the enzymes particularly methane monooxygenase (MMO) involved in the methane oxidation.There are a range of the soil and environmental factors such as type of soil and vegetation, methane availability, amount and exposure time of ammonium, and type of methanotrophic community dominating in an ecosystem, which affect the response of the methanotrophic bacteria towards the fertilizer application.However, still there are several gaps in our knowledge as complex interaction of edhapic factors affecting the availability of ammonium is unraveled.

Methane Monooxygenase

10.22606/epp.2018.32001

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Application of horizontal flow constructed wetland and solar driven disinfection technologies for wastewater treatment in India

Water Practice & Technology (2018)

Virendra Kumar Mishra Philipp Otter Reetika Shukla Alexander Goldmaier J.A. Álvarez

Abstract The present study was conducted to treat primary and secondary treated sewage for its reuse in irrigation, soil enrichment and aquaculture activities. The study involves treatment of this sewage through a subsurface horizontal gravity-fed gravel filter bed with an area of 35 m2. The effluent was then subjected to filtration by zeolite medium and disinfection by inline electrolytic production of chlorine. In order to provide pathogen-free water, an anodic oxidation (AO) disinfection system was implemented, treating a flow of up to 10 m3/d. The gravity-driven constructed wetland and solar-driven disinfection systems were evaluated for their treatment capacity for various physico-chemical and biological parameters. The wetland removed almost 84% of the nitrate (NO3−) and 77% of the phosphate (PO43−). Five-day biological oxygen demand was reduced from 48 mg/l to 10 mg/l from the secondary treated wastewater. The wetland was able to remove 65–70% of bacteria in the wastewater, whereas the AO disinfection system removed the bacterial content to below the detection limit. The implementation of the systems will provide a suitable option for the treatment of wastewater in a very economical and sustainable way.

Constructed wetland

Subsurface Flow

Filtration (mathematics)

Sand filter

Septic tank

10.2166/wpt.2018.029

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Macrophytes for Utilization in Constructed Wetland as Efficient Species for Phytoremediation of Emerging Contaminants from Wastewater

Wetlands (2024)

Priyanka Singh Gurudatta Singh Anubhuti Singh Virendra Kumar Mishra Reetika Shukla

10.1007/s13157-024-01770-2

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Heavy metal distribution, fractionation, metal pollution and environmental risk assessment in surface sediment of Narmada River, India

International Journal of Environmental & Analytical Chemistry (2024)

Deepak Gupta Reetika Shukla Virendra Kumar Mishra

Owing to the rapid industrial and socioeconomic development, the heavy metal concentration in the river is gradually increasing, it has the potential to threaten the aquatic environment and mankind. The present investigation deals with the quantification and fractionation of heavy metals from the sediments of the Narmada River. The presence of these heavy metals can be toxic to human health and aquatic life, therefore different pollution indices were evaluated to identify the degree of threat that might be imposed by these contaminants in the surface water and sediment. In this context, risk assessment code (RAC), hazard quotient (HQ), hazard index (HI) and total cancer risk (TCR) were calculated to examine the risk of heavy metal contamination on the human being. The important heavy metals and their concentration (in mg/kg, dry weight) have followed the following order, Fe > Al > Mn > Cr > Cu > Ni > Zn > Pb > Cd. Pollution indices classified the surface sediments under the uncontaminated to moderately contaminated category; the major responsible heavy metals for different pollution levels were Cr, Mn, Cu and Pb. The RAC identified Mn and Cd as potential heavy metals which may cause a high risk to aquatic organisms. HQ, HI and TCR values confirmed no human health risk. However, the Cr concentration present in surface sediments might cause cancer via ingestion in children. The insights obtained from this study shall aware and encourage the competent legislative bodies to plan an appropriate regular monitoring campaign and take necessary measures to improve the health of the river.

Hazard quotient

10.1080/03067319.2023.2299948

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Water quality assessment of Narmada River along the different topographical regions of the central India

Water Science (2020)

Deepak Gupta Reetika Shukla Mahesh Prashad Barya Gurudatta Singh Virendra Kumar Mishra

This study was performed to assess water quality in the Narmada River, the third-longest river in India. Water samples were collected from 6 major sampling stations with 17 sampling points. Nine water quality parameters were analyzed to calculate the water quality index (WQI), followed by multivariate statistical evaluation. The results indicated that water quality in the upper Narmada varied from excellent to very poor – comprising excellent for approximately 12%, good for 17%, poor for 59%, and very poor for 12% of pre-monsoon samples, but excellent for 17%, good for 12%, and poor for 71% of post-monsoon. While the general water quality in the Narmada was poor, anthropogenic inputs such as domestic sewage and agricultural runoff influenced some parameters – e.g. BOD, nitrate, and total coliform. More studies are required for completing water quality evaluation.

10.1080/11104929.2020.1839345

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Citations (21)

Occurrence, Fate, and Remediation of Arsenic

Gurudatta Singh Anubhuti Singh Reetika Shukla Jayant Karwadiya Ankita Gupta

The contamination of terrestrial and aquatic ecosystems by arsenic (As) is a very sensitive environmental issue due to its adverse impact on organisms. Although arsenic contamination is not only of anthropogenic origin, the problem of arsenic contamination in water sources in many areas has been considered calamitous because of its significant risk to different organisms. Many of the organisms are already suffering from the irreversible effects of arsenic poisoning. The disposal of industrial and mining waste has led to extensive contamination of land and water resources. It also causes a potential problem for food chain contamination. Awareness of arsenic poisoning to the mass majority of people has led to the development of efficient remediation technologies for its mitigation. There are many strategies for remediation such as coagulation-flocculation, membrane techniques, nanoparticles, and many more. In this chapter, different sources of arsenic contamination, health effects, and important management strategies currently being practiced for arsenic-contaminated areas (surface and groundwater) are shown. The chapter concludes with different remediation techniques for the removal of arsenic contaminants from water systems, and some are evolving as alternative green techniques.

10.1002/9781119693635.ch14

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Citations (2)