School Of Environment And Earth Sciences
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Item 1,3-Bis(cyanomethoxy)calix[4]arene capped CdSe quantum dots for the fluorogenic sensing of fluorene(Royal Society of Chemistry, 2017) Kumar, Rabindra; Arora, Meenu; Jain, A.K.; Babu, J. NagendraCapping of 1,3-bis(cyanomethoxy)-tert-butylcalix[4]arene (CAD) onto CdSe quantum dots (QDs) was characterized by a fluorescence enhancement of the QDs (?em = 580 nm) upon surface interaction with the phenolic moiety of CAD. CAD@QD showed selective and sensitive 1.67 fold fluorescence enhancement in the presence of fluorene among fifteen PAHs. The fluorescence enhancement was characterized by monolayer adsorption of fluorene on to the surface of CAD@QD. The limit of detection for fluorene was observed to be 0.8 nM. This method was used and compared with detection of fluorene in spiked respirable dust (PM10) samples collected during an open biomass (stubble) burning event. ? The Royal Society of Chemistry.Item The 22 June 2020 Mizoram, India earthquake (Mw5.5): an unusual intra-wedge shallow earthquake in the Indo-Burmese Wedge(Indian Academy of Sciences, 2022-03-08T00:00:00) Malsawma, J.; Lalnuntluanga, Paul; Sailo, Saitluanga; Vanthangliana, V.; Tiwari, R.P.; Gahalaut, V.K.Earthquakes in the Indo-Burmese arc occur due to interaction of India and Sunda plates along the Indo- Burmese Wedge and Sagaing Fault. Majority of the moderate to major magnitude earthquakes in the Indo-Burmese Wedge occur within the Indian slab and very few of them occur on the plate interface. Earthquakes within the wedge are rare and the 22 June 2020 earthquake of magnitude 5.5 (Mw) on the India�Myanmar border in Mizoram, India, at shallow depth is probably one such earthquake. The earthquake caused moderate damage (maximum intensity VIII on MSK scale) in remote border villages (Vaphai and Chawngtui) with sparse population without any fatality. The earthquake did not seem to be related with the Mat Fault, which was transverse to the north�south trending wedge, as various estimates of mainshock and the region of maximum damage was ~20 km northeast of the surface trace of the Mat Fault. It appeared to be associated with almost north� south oriented Churachandpur Mao Fault (CMF) with dextral slip which mapped extensively and monitored geodetically in the neighbouring regions of Manipur and Nagaland to the north. Occurrence of this shallow depth earthquake may imply that some segment of the CMF might be seismically active, unlike in the north, where it appears to be predominantly aseismic. This implies that the seismic hazard along the CMF may vary along its length. � 2021. All Rights Reserved.Item Adsorption of Zn(II) on Pristine and SPLP/TCLP Leached Rice Straw Biochar: an Interplay of Precipitation and Ion Exchange(Institute for Ionics, 2022-11-15T00:00:00) Bhardwaj, Akanksha; Nag, Shilpa; Hussain, Khadim; Arora, Meenu; Pandey, Puneeta; Babu, J. NagendraThe inorganic mineral content in biochar influences the adsorption of Zn(II) metal ions. Metal ion adsorption on mineral rich rice straw biochar is influenced upon washing. Rice straw slow pyrolysis biochar BC1-3, respectively, prepared at 400, 500, and 600��C, were leached under Toxicity Characteristic Leaching Procedure (TCLP) and Synthetic Precipitation Leaching Procedure (SPLP) conditions to furnish BT1-3 and BS1-3, respectively. The Zn(II) adsorption studies were carried out for pH and dose optimization, initial concentration, isotherm fit, and kinetic studies. The Zn(II) adsorption by B(C/S/T)1�3 showed Langmuir and Freundlich isotherm, with pseudo-second-order kinetics at optimum pH 5 and dose 1�g/L. The adsorption of Zn(II) followed the trend BC3(qm 47�mg/g) > BC2 > BC1 > BS2 > BS1 > BS3 > BT2 > BT1 > BT3 (qm 3.5�mg/g), i.e., metal ion adsorption decreased with extent of leaching. The Zn(II) adsorption on biochar involved precipitation as dominant factor for metal ion adsorption on the biochars followed by ion exchange and proton exchange. The precipitation of Zn(II) ions in case of BC1-3 is attributed to the pH of biochar, which increases with proportion of minerals to organic content in biochar. In case of biochar BS1-3 and BT1-3, ion exchange and proton exchange mechanisms driven by demineralization are responsible for Zn(II) adsorption. The adsorption mechanism for Zn(II) on biochar is supported by XPS, solid state NMR studies. Graphical Abstract: [Figure not available: see fulltext.] � 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.Item Adsorption studies for the removal of hexavalent chromium using fly ash of waste to energy power plant(Central University of Punjab, 2013) Vaid, Upma; Mittal, SunilChromium is the most common pollutant discharged in industrial effluent and reported to be present beyond permissible limits causing various health problems like carcinogenicity. Therefore, it must be removed from industrial effluent before its discharge. Several physico-chemical methods have been used for the removal of Cr (VI) from industrial effluents. Adsorption using activated carbon is quite efficient for the removal of Cr (VI) from industrial effluents. However, it is a costly process and the regeneration of activated carbon is difficult. Hence, in the present work, efforts have been made to explore the use of fly ash collected from the ‘Waste to Energy Power Plant’ as a low cost adsorbent. In order to maximize the Cr (VI) removal from simulated aqueous solutions, effects of various parameters (adsorbent dose, contact time, pH and initial metal ion concentration) on Cr (VI) adsorption were investigated by batch adsorption experiments. By optimizing the conditions for Cr (VI) adsorption using the fly ash, removal of hexavalent chromium from the aqueous solution (10 μg Cr/ml) was increased from 4% to approx. 99%. This shows that fly ash of agricultural waste burning can be used as an adsorbent for the removal of Cr (VI) at low concentration.Item Advanced membrane technology for the removal of pesticides from water and wastewater(Elsevier, 2022-05-21T00:00:00) Yadav, Sangita; Chauhan, Amit Kumar; Kumar, Sandeep; Kataria, NavishAgricultural runoff is one of the main factors that introduces pesticide residue into water. Common pesticides such as DEET(N,N-diethyl-meta-toluamide), DDT(dichloro diphenyl trichloroethane), metolachlor, malathion, etc., have continuously contaminated water systems. These pesticides are toxic and can cause detrimental effects on living organisms, even at trace amounts. Most pesticides are grouped into chemical families and persist the environment for long periods. Therefore, specific water treatment is required to clean the waterbodies contaminated with pesticides. Several conventional treatment methods have been introduced in the past to decontaminate the waterbodies. However, there are many advantages and disadvantages associated with these processes. Nowadays, membrane technology is one of the best and preferred method available to treat contaminated water because of its high efficiency, cost effectiveness, easy applicability, stability, and low footprint. Membrane filtration includes reverse osmosis, nanofiltration, ultrafiltration, nanofiber filtration, and biomembrane filtration processes for pollution separation. Membrane materials and filtration processes can be modified depending on the chemical structure and properties of the pesticides. Recent advances in nanotechnology offer energy-efficient, low cost, and eco-friendly approaches in water treatment technologies. Membrane materials can be modified to obtain better results and increase its effectiveness for treatment process. Recently, researchers have started working to introduce new nanomaterials including carbon nanotubes, nanopolymers, metal-organic nanomembrane, graphene, quantum and nanoshells development of membrane filters for water purification. Recently, membrane materials progress has allowed filtration to become more effective over other conventional treatment methods and popularized globally. � 2022 Elsevier Inc. All rights reserved.Item Advances in arsenic biosensor development - a comprehensive review(Elsevier Ltd, 2015) Kaur, Hardeep; Kumar, Rabindra; Babu, , J. Nagendra; Mittal, SunilBiosensors are analytical devices having high sensitivity, portability, small sample requirement and ease of use for qualitative and quantitative monitoring of various analytes of human importance. Arsenic (As), owing to its widespread presence in nature and high toxicity to living creatures, requires frequent determination in water, soil, agricultural and food samples. The present review is an effort to highlight the various advancements made so far in the development of arsenic biosensors based either on recombinant whole cells or on certain arsenic-binding oligonucleotides or proteins. The role of futuristic approaches like surface plasmon resonance (SPR) and aptamer technology has also been discussed. The biomethods employed and their general mechanisms, advantages and limitations in relevance to arsenic biosensors developed so far are intended to be discussed in this review.Item ADVANCES IN MICROBIAL BIODEGRADATION OF CHLORPYRIFOS(Jerad Publications,, 2014) M.S., DhanyaChlorpyrifos (O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate) an organophosphate pesticide is one of the most commonly used insecticide, acaricide and termiticide in agriculture, households and public health. The exposure of this moderately hazardous pesticide creates health concerns due to choline esterase inhibition, neurotoxicity, psychological and immunological effects. The microbial bioremediation of chlorpyrifos is a viable option for cleaning up the contaminated sites with its eco-friendliness, high efficiency and cost- effectiveness. Several researchers reported potential bacterial strains like Pseudomonas sp., Arthrobacter sp., Bacillus sp., Klebsiella sp., Serratia marcescens, Enterobacter sp., Stenotrophomonas sp., Sphingomonas sp., Flavobacterium sp. etc., fungal strains such as Phanerochaete chrysosporium, Aspergillus terreus, Verticillium sp., Trichoderma harzianum, etc. and cyanobacteria like Anabaena sp., Aulosira fertilissima, Phormidium valderianum for chlorpyrifos degradation. The microbes capable of producing biosurfactants increase biodegradation efficiency of chlorpyrifos by improving bioavailability of the xenobiotic compound by developing critical micellar concentration. The complete detoxification of the pesticide occurs with those microbes that also degrade its metabolites and avoid its accumulation in the environment. The cloning of mpd gene from chlorpyrifos degrading bacterial strains to Escherichia coli helps in developing its biodegradation capability. This paper focuses on the advancements in chlorpyrifos biodegradation for the efficient onsite remediation of the contaminated environment.Item Agricultural Wastes: A Feedstock for Citric Acid Production Through Microbial Pathway(CRC Press, 2023-06-02T00:00:00) Sachdeva, Saloni; Banu, Rajesh; Nandabalan, Yogalakshmi KadapakkamCitric acid holds a dominant position in industrial manufacturing due to its widespread application. It can be extricated as natural products through microbial pathways. A greater part of citric acid production is currently achieved by fermentation techniques where molasses/starch-based media are used. Microbial strains such as Penicillium spp, Aspergillus spp, Acremonium spp, and many others excrete variable amounts of citric acid as a primary metabolite. So far, Aspergillus niger has been recognized to produce a higher yield of around 112 g of citric acid /100 g of sucrose. However, the increasing demands has necessiated the need for more efficient procedures to enhance the yield. Several studies have been documented where agri-wastes such as rice straw, coconut husk, corn stalk, apple pomace, sugarcane bagasse, and many others were subjected to varied microorganisms (mainly fungal species) to increase the productivity of citric acid. Substantial citric acids have been produced using genetically modifying organisms (fungi Aspergillus and yeast Candida) and divergent combinations of microbe-substrate, but large-scale production has not yet been established. Also, the utilization of these fossil carbon sources has caused environmental deterioration, which instigates interest in agricultural waste as a potential substrate. Agricultural wastes are considered an economically feasible option and a renewable source that can be consumed by plenty of microorganisms. This chapter covers a detailed description of agri-waste bioconversion to citric acid which can further help in this fast-moving domain. � 2023 selection and editorial matter Gustavo Molina, Minaxi Sharma, Vipin Chandra Kalia, Franciele Maria Pelissari, Vijai Kumar Gupta, individual chapters, the contributors.Item Air Pollution, Climate Change, and Human Health in Indian Cities: A Brief Review(Frontiers Media S.A., 2021-08-13T00:00:00) Kaur, Rajveer; Pandey, PuneetaClimate change and air pollution have been a matter of serious concern all over the world in the last few decades. The present review has been carried out in this concern over the Indian cities with significant impacts of both the climate change and air pollution on human health. The expanding urban areas with extreme climate events (high rainfall, extreme temperature, floods, and droughts) are posing human health risks. The intensified heat waves as a result of climate change have led to the elevation in temperature levels causing thermal discomfort and several health issues to urban residents. The study also covers the increasing air pollution levels above the prescribed standards for most of the Indian megacities. The aerosols and PM concentrations have been explored and hazardous health impacts of particles that are inhaled by humans and enter the respiratory system have also been discussed. The air quality during COVID-2019 lockdown in Indian cities with its health impacts has also been reviewed. Finally, the correlation between climate change, air pollution, and urbanizations has been presented as air pollutants (such as aerosols) affect the climate of Earth both directly (by absorption and scattering) and indirectly (by altering the cloud properties and radiation transfer processes). So, the present review will serve as a baseline data for policy makers in analyzing vulnerable regions and implementing mitigation plans for tackling air pollution. The adaptation and mitigation measures can be taken based on the review in Indian cities to reciprocate human health impacts by regular air pollution monitoring and addressing climate change as well. Copyright � 2021 Kaur and Pandey.Item Algal Biofuels: A Potential Source of Renewable Energy.(2013) Pandey, PuneetaItem Ambient noise levels due to dawn chorus at different habitats in Delhi. Environment and We: An(2011) Singh, Manoj; Kumar, Dinesh; Pandey, Puneeta; Kumar, Krishan; Jain, Vinod KumarItem Amino-functionalized Magnetic Iron Nanoparticles As a Carrier for Laccase Enzyme and Its Potential to Degrade Chlorpyrifos in Contaminated Soil: Fate and Kinetics(Springer Science and Business Media Deutschland GmbH, 2022-04-14T00:00:00) Das, Anamika; Yogalakshmi, KnThe present study utilizes the covalent-crosslinking method to immobilize the�laccase enzyme on magnetic iron nanoparticles�and further assess its potential in degrading�chlorpyrifos in pesticide spiked�soil. The soil texture analysis revealed the presence of clay, silt and sand accounting to�7.1%, 14.3%, and 78.6%, respectively. The degradation of chlorpyrifos in spiked soil�using laccase enzyme�immobilized�magnetic iron nanoparticles was measured for 60�days�in a batch process. The results revealed a gradual increase in degradation efficiency showing around�29.3%, 43.8%, 56.3%, and 67.3% at the 20th, 30th, 40th, and 50th day�of incubation. A maximum degradation of�83.6% was observed on the 60th day of incubation. Intermediate products 2,4-bis(1,1 dimethylethyl) phenol, 1,2 benzenedicarboxylic acid, bis(2-methyl propyl) ester�and�piperidine confirmed the degradation of chlorpyrifos in soil. The piperidine originated in the chromatogram between�20�40�days of incubation and diminished later. Chlorpyrifos degradation followed pseudo first-order kinetics with a R2 of 0.96. Further, the nanoparticles showed no negative�impact on soil bacterial population during the antibacterial assay. The study confirms the degradation of chlorpyrifos in contaminated soil using laccase-immobilized nanoparticles. � 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.Item Analysing The Impact Of Sand Mining On The Flow Of Tawi River, Jammu And Kashmir(Central University of Punjab, 2018) Salgotra, Vishabh; GUITE, L.T. SASANGThe river Tawi in Jammu and Kashmir faces indiscriminate sand mining practice where large amount of sand is being mined from the river bed between Nagrota and Sidhra area. The increasing pace of urbanization and associated developments in Jammu City and nearby areas are responsible for this practice. The mining activity in Tawi river involves massive digging of river bed materials upto 3-4 mts depth with the help of heavy duty excavators used by the mining contractors, whereas, the Geology and Mining Department gave the permission to extract the materials up to 3 mts depth. Moreover, the sand mining has impacted the flow of river Tawi particularly between Nagrota and Sidhra. In this study, the locations of sand mining sites in Tawi river between Nagrota and Sidhra are mapped from 2007 to 2018 and an attempt made to analyse the possible impact of sand mining on the flow of river. The mapping is done by using GIS technique and a field visit is also carried out for acquiring the coordinates and photographs of present sand mining sites in river TawiItem Analysis Of Land-Use Land-Cover Change In Rajouri District, Jammu And Kashmir(Central University of Punjab, 2018) Ahmed, Ishtiaq; Guite,L.T. SasangAn attempt was made in this study to detect the land use and land cover changes in Rajouri district of J&K during the period from November 2008 to December 2016. The LULC change over a span of 08 years (2008-2016) was investigated through remote sensing approach using two different time satellite images. Supervised classification in GIS software has been adopted in LISS-III (2008) and Landsat-8 (2016) images of the study area. To identify LULC changes from these pictures, post classification are used. The findings of Land-use Land-cover change shown that the study has experienced a decrease in forests by 6 percent and with an increase in agricultural land and open fields and settlement areas during the study period. These amendments in the land-use and land cover of the study area convey us that this change is due to rising anthropogenic burden on forests and high level of deforestation is responsible. Nonstop assessments of land-use/land-covers changes in this city and the implementation of proper land use planning are mandatory for ideal and systematic development.Item Analyzing shoreline dynamicity and the associated socioecological risk along the Southern Odisha Coast of India using remote sensing-based and statistical approaches(Taylor and Francis Ltd., 2021-02-06T00:00:00) Mishra, Manoranjan; Acharyya, Tamoghna; Chand, Pritam; Santos, Celso Augusto Guimar�es; Kar, Dipika; Das, Prabhu Prasad; Pattnaik, Namita; Silva, Richarde Marques da; Nascimento, Thiago Victor Medeiros doThe coastal zone is an extremely volatile environment and is constantly changing. We assessed short- and long-term shoreline changes in the Ganjam district of Odisha on the eastern coast of India from 1990 to 2019 using Landsat satellite imagery and the Digital Shoreline Analysis System (DSAS) tool in a geographic information system. In addition, we have also projected the likely future coastline position for the 2030�2040 period and the possible impact on the socioecology of the shoreline. In this study, we used the endpoint rate (EPR) analysis, weighted linear regression (WLR) analysis, and trigonometric functions to analyze the shoreline from 1990 to 2019 and also forecasted for year 2030 and 2040. The shoreline of the Ganjam coastal zone is one of the most biologically productive ecosystems in the world, and it is well-known due to the breeding and mass nesting grounds of olive ridley turtles and the economically connected ports, famous beaches, and cyclone-prone areas. During the study period (1990�2019), the average erosion and accretion rates in the Ganjam shoreline were ?2.58 m/year and 11.63 m/year, respectively. The rate of shoreline erosion increased during years of cyclone landfall, which was revealed during the short-term shoreline analysis of the periods from 1995 to 2000 (1999 super cyclone) and 2015 to 2019 (2019 category�IV cyclone Fani). The short- to long-term analyses of the shoreline assisted in identifying erosion (Ramyapatna, Podampetta) and accretion (southern part of Gopalpur port, spits along the Bahuda and Rushikulya Rivers) hotspots within the Ganjam coastal zone. The identified erosion hotspots could submerge a significant number of coastal villages that serve as breeding and mass nesting grounds for olive ridley turtles. The dominant erosion along the Ganjam coastline are likely to enhance socioecological risk and further threaten coastal communities in the future. The output of the undertaken research will benefit coastal planners, policymakers, and conservationists by helping them to formulate the most suitable action plan for coastal zone management with consideration of all stakeholders. � 2021 Informa UK Limited, trading as Taylor & Francis Group.Item Anode modification: An approach to improve power generation in microbial fuel cells (MFCs)(Elsevier, 2023-01-27T00:00:00) Rani, Gini; Jaswal, Vijay; Yogalakshmi, K.N.Global energy demand is continuously increasing and has become a matter of concern. At present, 86% of the energy demand are accomplished by fossil fuels, but these deliver harmful effects on the environment by releasing CO2 in the atmosphere. Contrary, though nonrenewable resources such as solar, wind, and bioenergy possess minimal carbon footprints, they suffer from limitations of higher installation cost, low efficiency, and complex operation system. Since the past two decades, a relatively new sustainable technology, the microbial fuel cells (MFCs) have emerged with potential to convert the bond energy of molecules present in organic/inorganic waste into electric energy with the help of microbes. The electricity produced through the release of electrons during microbial degradation of organic waste can be used to offset the running cost of wastewater treatment plants. The performance of the MFCs is influenced by a number of cofactors, viz. type of reactor, nature of feed, microbial consortia, electrode material, and mode of operation. Anode plays a significant role in the power enhancement. Across the globe, various research groups are working to enhance the efficiency and power output of anode through its modification using conductive polymers (polypyrrole and polyaniline), metal oxides, nanomaterials, and many others. MFC operated with the electrochemically reduced graphene oxide modified anode evidenced a power density enhanced by 17.5 times as compared to carbon cloth. In the past 5 years, power density ranging from 6.12 to 6119mWm?2 was observed with various modified anode. The chapter will throw light on anode materials popularly used in MFC, method/techniques used for its modification to enhance energy output and limitations that restrict its wide-scale application. � 2023 Elsevier Inc. All rights reserved.Item Application of analytical hierarchy process and GIS techniques to delineate the groundwater potential zones in and around Jorhat and Majuli areas of eastern Assam, India(Springer Science and Business Media Deutschland GmbH, 2022-10-26T00:00:00) Bordoloi, Abhiraj; Singh, Kshetrimayum Krishnakanta; Gaichunglu, GangmeiGroundwater is regarded as prominently reliable natural resources available as fresh water. However, as the world advances at a tremendous rate, this hidden water resource is exposing continuous threats owing to numerous factors, such as improper uses, over-exploitation and quality contamination. The present study emphasizes on such challenges, especially on groundwater exploration in northeast region, India with the application of remote-sensing and GIS methods. Groundwater acts as a primary source of water supply for household and agricultural purposes in the study area. Parameters, such as rainfall, geomorphology, drainage density, lithology, LU/LC, soil, lineament density, slope and well yield data, were selected to prepare thematic maps. The thematic maps were created in remote sensing and GIS platforms and specific ranks and weights were assigned to each. A pair-wise examination of all the factors affecting the groundwater potential zone (GPZ) was used to derive the weights using an analytical hierarchy process and a multi-criteria decision-making approach to generate GPZ. Five potential zones have been classified as poor, fair, moderate, good and excellent. Based on the data obtained, the poor potential zone comprises 0.083% (2.11 km2), the fair groundwater zone consists of 7.21% (183 km2), the moderate zone contributes 27.4% (694.8 km2), the good zone shows 43.6% (1105.9 km2) and the excellent zone represents 21.7% (549.8 km2), respectively. Thus, such approach is proved to be effective, convenient and reliable as compared to other expensive and time-consuming techniques for groundwater mapping especially in a remotely located terrain. � 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.Item Application of EDTA modified Fe3O4/sawdust carbon nanocomposites to ameliorate methylene blue and brilliant green dye laden water(Academic Press, 2019) Kataria, N; Garg, V.K.This work explored the potential of magnetic sawdust carbon nanocomposites for cationic dyes removal from aqueous medium. EDTA modified magnetic sawdust carbon nanocomposites (EDTA@Fe3O4/SC ncs) were prepared by biogenic green reduction and precipitation approach. The surface properties, structure and composition of nanocomposites were characterized by HRTEM, FESEM, XRD, EDX, BET, FTIR etc. The Fe3O4 nanoparticles were 10–20 nm in diameters and having 14 m2/g surface area. Removal of Methylene blue (MB) and Brilliant green (BG) dyes from aqueous medium was studied in batch mode experiments. The maximum removal was achieved at neutral pH 7.0 with in 30 min. Adsorption capacity of EDTA@Fe3O4/SC for MB and BG dyes was 227.3 mg/g and 285.7 mg/g, respectively. Dye adsorption behaviour is well explained by Freundlich model. The rate of cationic dye adsorption is explained by pseudo-second order model. The value of thermodynamic parameters confirmed that adsorption process was spontaneous and favourable. Desorption and reusable efficiency of nanocomposites was also evaluated. © 2019 Elsevier Inc.Item Application of EDTA modified Fe3O4/sawdust carbon nanocomposites to ameliorate methylene blue and brilliant green dye laden water(Academic Press Inc., 2019) Kataria N.; Garg V.K.This work explored the potential of magnetic sawdust carbon nanocomposites for cationic dyes removal from aqueous medium. EDTA modified magnetic sawdust carbon nanocomposites (EDTA@Fe3O4/SC ncs) were prepared by biogenic green reduction and precipitation approach. The surface properties, structure and composition of nanocomposites were characterized by HRTEM, FESEM, XRD, EDX, BET, FTIR etc. The Fe3O4 nanoparticles were 10-20 nm in diameters and having 14 m2/g surface area. Removal of Methylene blue (MB) and Brilliant green (BG) dyes from aqueous medium was studied in batch mode experiments. The maximum removal was achieved at neutral pH 7.0 with in 30 min. Adsorption capacity of EDTA@Fe3O4/SC for MB and BG dyes was 227.3 mg/g and 285.7 mg/g, respectively. Dye adsorption behaviour is well explained by Freundlich model. The rate of cationic dye adsorption is explained by pseudo-second order model. The value of thermodynamic parameters confirmed that adsorption process was spontaneous and favourable. Desorption and reusable efficiency of nanocomposites was also evaluated.