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                    {
                        "key": "ref1",
                        "doi": "10.1007/s10661-011-1914-0",
                        "unstructured": "Pankaj Sharma,Harleen Kaur,Monika Sharma,Vishal Sahore; A review on applicability of naturally available adsorbents for the removal of hazardous dyes from aqueous waste.Environ monist Asses (2011) 183;151-195 DOI 10.1007/s10661-011-1914-0"
                    },
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                        "key": "ref2",
                        "unstructured": "Kayode Adesina Adegoke, Olugbenga Solomon Bello; Dye Sequestration Using Agricultural waste as aadsorbent. Department of pure and apply chemistry, ladoke Akintola University of Technology,P.M.B. 4000, Ogbomoso,oyo state, Nigeria"
                    },
                    {
                        "key": "ref3",
                        "doi": "10.1016/j.dyepig.2005.03.008",
                        "unstructured": "Jae-WookLee,Seung-Phil Choi,Ramesh Thiruvenkatachari, Wang-GeunShim,Hee Moon; Evaluation of the performance of adsorption and coagulation process for the maximum removal of reactive dyes; Department of Environment and chemical Engineering, Seonam University, Namwon 590-170 Korea,Faculty Of Applied Chemistry, Chonnam National University, Gwangiu 500-757, Korea"
                    },
                    {
                        "key": "ref4",
                        "doi": "10.1007/s10311-018-0785-9",
                        "unstructured": "Gregorio Crini, Eric Lichtfocus; Advantages and disadvantages of techniques used for wastewater treatment. Environmental Chemistry Letters (2019) 17:145-155 https;//doi.org/10.107/s10311-018-0785-9"
                    },
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                        "key": "ref5",
                        "unstructured": "Mahdi Hadi,Mohammad R. Samargandhi, Gordon Mckay; Equilibriunm two- parameter isotherm of acid dyes sorption by activated carbons : Study of residual errors.Department of Environmental Health Engineering,School of public Health, Center for Health Research,Hamadan University of Medical Science, Hamadan, Iran. Department of Chemical and Biomolecular Engineering,Hong Kong University of Science and Technology,Clearwater Bay,Kowloon,Hong Kong SAR"
                    },
                    {
                        "key": "ref6",
                        "doi": "10.1016/j.jaubas.2014.10.001",
                        "unstructured": "Ayesha Wasti and M.Ali Awan; Adsorption of textile dye onto modified immobilized activated alumina.ISSN:1815- 3852(print)(online) Journal homepage : https;//www.tandfonline.com/loi/tabs19"
                    },
                    {
                        "key": "ref7",
                        "doi": "10.2166/wpt.2018.110",
                        "unstructured": "Tayyaba Asim MamoonaMamoona,Arifa Tahir, Numrah Nisar, Arslan Ali, Afia Sheikh;Aumina as environmentally stable adsorbent for the removal of diresul black dye from waste water. Water Practice and Technology 14 (1), 62-70,2019"
                    },
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                        "key": "ref8",
                        "doi": "10.1016/j.cej.2012.08.055",
                        "unstructured": "Bahareh Yahyaei,SaeidAzizian;Rapid adsorption of anionic dyes by ordered nanoporous alumina; Chemical Engineering journal 209,589-596,2012"
                    },
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                        "key": "ref9",
                        "doi": "10.1080/19443994.2015.1004115",
                        "unstructured": "SharmeenAfroj, Tushar Kanti Sen,Ming Ang,and Hiroshi Nishioka; Adsorption of methylene blue dye from aqueous solution by novel biomass Eucalyptus sheathiana bark :equilibrium,kinetics,thermodynamics and mechanism.Department of chemical engineering,curtinUniversity,GPO Box U1987,perth,western Australia.Graduate school of engineering,university of Hyogo,2167 shosha,Himeji-shi,Hyogo 671-2280,Japan"
                    },
                    {
                        "key": "ref10",
                        "doi": "10.1002/cjce.20473",
                        "unstructured": "Yusra Safa, Haq Nawaz Bhatti,Ijaz Ahmad Bhatti and Muhammad Asgher; Removal of Direct Red-31 and Direct Orange-26 by low cost Rice Husk :Influence of Immobilisation and Pretreatments. Environmental chemistry laboratory,Department of chemistry and Biochemistry,University of Agriculture,Faisalabad,Pakistan"
                    },
                    {
                        "key": "ref11",
                        "doi": "10.1016/j.biortech.2007.06.027",
                        "unstructured": "Runping Han DandanDing,Yanfang Xu, Weihua Zou, Yuan feng Wang,Yufei Li, Zou; Use of rice husk for the adsorption of congo red from aqueous solution in column mode. Department of chemistry Zhengzhouuniversity, no.75 of da Xue North Roadzhengzhou450052, pP R china"
                    },
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                        "key": "ref12",
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                        "unstructured": "Uma R. Lakshmi, Vimal Chandra Srivastava, Indra Deo Mall, Dilip H. Lataye; Rice husk ash as an effective adsorbent; Evaluation of Adsorptive characterstic for indigo carmine dye. Department of chemical Engineering,Indian Institute of Technology Roorkee 247667, india"
                    },
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                        "key": "ref13",
                        "doi": "10.5714/cl.2012.13.2.061",
                        "unstructured": "A.m. Youssef, A.I. Ahmed and U.A. EI-Bana; adsorption of cationic dye (MB) and anionic dye (AG25) by physically and chemically activated carbons developed from rice husk. Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt"
                    },
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                        "key": "ref14",
                        "doi": "10.1016/j.carbpol.2011.06.058",
                        "unstructured": "SagnikChakraborty,ShamikChowdhury, Papita Das Saha; Adsorption of Crystal Violet from aqueous solution onto NaoH modified rice husk. Department of Biotechnology, National Institute of Technology-Durgapur, Mahatma Gandhi Avenue, Durgapur (WB) 713209, India"
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                        "unstructured": "JiwanSingh,Uma, Sushmita Banerjee, Yogesh Chandra Sharma; A very fast removal of Orange G from its Aqueous Solutions by Adsorption on Activated Saw Dust: kinetic Modelling and Effect of Various Parameters.International Review of Chemical Engineering (I.RE.CH.E) Vol.4,N.1 ISSN 2035-1755"
                    },
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                        "key": "ref16",
                        "unstructured": "D. A.Nimkar,S.K.Chavan;Removal of Congo red Dye from Aqueous Solution by Dust as an Adsorbent. D.A.Nimkar et al Int.Journal of Engineering Research and Applications ISSN:2248-9622,Vol.4,Issue 4 (version1) April 2014,pp.4751"
                    },
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                        "key": "ref17",
                        "doi": "10.1016/s0143-7208(02)00159-6",
                        "unstructured": "P.K.Malik; Use of activated carbons prepared from sawdust and rice-husk for adsorption of acid dyes:a case study of Acid Yellow 36.Volume 56,Issue 3,March 2003,Pages 239-249"
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                        "unstructured": "RatnaShelke, JagdishBharad, BalajiMadje and Milind Ubale;Adsorption of acid dyes from aqueous solution onto the surface of acid activated Nirgudi Leaf Powder (AANLP):A case study.International Journal of ChemTech Research CODEN(USA):IJCRGG ISSN :0974-4290 Vol.2,No.4,pp 2046-2051, Oct-Dec 2010. [19 Tabrez A. Khan,Sangeeta Sharma and Imran Ali;Adsorption of Rhodamine B dye from aqueous solution onto acid activated mango (Magnifera indica)leaf powder:Equilibrium,Kinetic and thermodynamic studies.Journal of Toxicology and Environmental Health Sciences Vol.3(10),pp.286-297,14 September,2011.Available online at http://www.academicjournals.org/JTEHS ISSN 2006-9820 2011 Academic Journals"
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                        "key": "ref19",
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                        "unstructured": "Krishna G. Bhattacharyya, Arunima Sharma;Azadichta indica leaf powder as an effective bioadsorbent for dyes: a case study aqueous Congo Red solutions.Journal of Environmental Management 71(2004)217-229"
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                        "unstructured": "FatihDeniz,SaadetD.Saygideger;Equilibrium,kinetic and thermodynamic studies of Acid Orange 52 dye biosorption by Paulownia tomentosa Steud.leaf powder as a low-cost natural bioadsorbents,.Bioresource Technology 101 (2010)5137-5243.journal homepage:www.elsevier.com/locate/biortech"
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                        "unstructured": "S.Arivoli,M Sundaravadivelu and K P Elango;Removal of basic and acidic dyes from aqueous solution by adsorption on a low cost activated carbon : Kinetics and thermodynamic study. Indian Journal of chemical technology Vol.15 March 2008,pp.130-139"
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                        "unstructured": "Hani Mahanna,MahmoudSamy;Adsorption of Reactive Red 195 dye from industrial wastewater by dried soybean leaves modified with acetic acid.Desalination and water treatment 178 (2020)312-321 February www.deswater.com. Doi:10.5004/dwt.2020.24960"
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                        "unstructured": "Kayode Adesina Adegoke, Olugbenga Solomon Bello; Dye Sequestration Using Agricultural waste as aadsorbent. Department of pure and apply chemistry, ladoke Akintola University of Technology,P.M.B. 4000, Ogbomoso,oyo state, Nigeria"
                    },
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                    },
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                        "key": "ref5",
                        "unstructured": "Mahdi Hadi,Mohammad R. Samargandhi, Gordon Mckay; Equilibriunm two- parameter isotherm of acid dyes sorption by activated carbons : Study of residual errors.Department of Environmental Health Engineering,School of public Health, Center for Health Research,Hamadan University of Medical Science, Hamadan, Iran. Department of Chemical and Biomolecular Engineering,Hong Kong University of Science and Technology,Clearwater Bay,Kowloon,Hong Kong SAR"
                    },
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                        "unstructured": "Ayesha Wasti and M.Ali Awan; Adsorption of textile dye onto modified immobilized activated alumina.ISSN:1815- 3852(print)(online) Journal homepage : https;//www.tandfonline.com/loi/tabs19"
                    },
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                        "unstructured": "Tayyaba Asim MamoonaMamoona,Arifa Tahir, Numrah Nisar, Arslan Ali, Afia Sheikh;Aumina as environmentally stable adsorbent for the removal of diresul black dye from waste water. Water Practice and Technology 14 (1), 62-70,2019"
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                    },
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                        "doi": "10.1002/cjce.20473",
                        "unstructured": "Yusra Safa, Haq Nawaz Bhatti,Ijaz Ahmad Bhatti and Muhammad Asgher; Removal of Direct Red-31 and Direct Orange-26 by low cost Rice Husk :Influence of Immobilisation and Pretreatments. Environmental chemistry laboratory,Department of chemistry and Biochemistry,University of Agriculture,Faisalabad,Pakistan"
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                    },
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                        "unstructured": "D. A.Nimkar,S.K.Chavan;Removal of Congo red Dye from Aqueous Solution by Dust as an Adsorbent. D.A.Nimkar et al Int.Journal of Engineering Research and Applications ISSN:2248-9622,Vol.4,Issue 4 (version1) April 2014,pp.4751"
                    },
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                        "key": "ref17",
                        "doi": "10.1016/s0143-7208(02)00159-6",
                        "unstructured": "P.K.Malik; Use of activated carbons prepared from sawdust and rice-husk for adsorption of acid dyes:a case study of Acid Yellow 36.Volume 56,Issue 3,March 2003,Pages 239-249"
                    },
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                        "unstructured": "RatnaShelke, JagdishBharad, BalajiMadje and Milind Ubale;Adsorption of acid dyes from aqueous solution onto the surface of acid activated Nirgudi Leaf Powder (AANLP):A case study.International Journal of ChemTech Research CODEN(USA):IJCRGG ISSN :0974-4290 Vol.2,No.4,pp 2046-2051, Oct-Dec 2010. [19 Tabrez A. Khan,Sangeeta Sharma and Imran Ali;Adsorption of Rhodamine B dye from aqueous solution onto acid activated mango (Magnifera indica)leaf powder:Equilibrium,Kinetic and thermodynamic studies.Journal of Toxicology and Environmental Health Sciences Vol.3(10),pp.286-297,14 September,2011.Available online at http://www.academicjournals.org/JTEHS ISSN 2006-9820 2011 Academic Journals"
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                        "key": "ref19",
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                        "unstructured": "Krishna G. Bhattacharyya, Arunima Sharma;Azadichta indica leaf powder as an effective bioadsorbent for dyes: a case study aqueous Congo Red solutions.Journal of Environmental Management 71(2004)217-229"
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                        "key": "ref20",
                        "doi": "10.1016/j.biortech.2010.02.004",
                        "unstructured": "FatihDeniz,SaadetD.Saygideger;Equilibrium,kinetic and thermodynamic studies of Acid Orange 52 dye biosorption by Paulownia tomentosa Steud.leaf powder as a low-cost natural bioadsorbents,.Bioresource Technology 101 (2010)5137-5243.journal homepage:www.elsevier.com/locate/biortech"
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                        "unstructured": "S.Arivoli,M Sundaravadivelu and K P Elango;Removal of basic and acidic dyes from aqueous solution by adsorption on a low cost activated carbon : Kinetics and thermodynamic study. Indian Journal of chemical technology Vol.15 March 2008,pp.130-139"
                    },
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