1. N. Jiang, R. Shang, S.G.J. Heijman, L.C. Rietveld, High-silica zeolites for adsorption of organic micro-pollutants in water treatment: a review, Water Res., 144 (2018) 145–161.
  2. E.N. Zare, A. Motahari, M. Sillanpää, Nanoadsorbents based on conducting polymer nanocomposites with main focus on polyaniline and its derivatives for removal of heavy metal ions/dyes: a review, Environ. Res., 162 (2017) 173–195.
  3. S.A. Bhat, T. Hassan, S. Majid, Heavy metal toxicity and their harmful effects on living organisms, Int. J. Med. Sci. Diagn. Res., 3 (2019) 106–122.
  4. H.A. Shamkhia, A.D.Z. Albdiria, Simultaneous extraction of lead, copper, and cadmium from aqueous solution using emulsion liquid membrane technique, Al-Qadisiyah J. Eng. Sci., 13 (2020) 183–188.
  5. R. Arora, Adsorption of heavy metals-a review, Mater. Today Proc., 18 (2019) 4745–4750.
  6. H.A. Shamkhi, A.D.Z. Albdiri, F.A. Jabir, S.S. Koter, Experimental and modeling studies on simultaneous extraction of Pb2+, Cu2+, and Cd2+ from diluted acidic aqueous solutions by emulsion liquid membrane, Chem. Eng. Commun., 209 (2022) 246–255.
  7. A. Elhalil, W. Boumya, A. Machrouhi, R. Elmoubarki, S. Mansouri, M. Sadiq, M. Abdennouri, N. Barka, Synthesis, characterization and efficient photocatalytic properties of spinel materials for dye degradation, Appl. Surf. Sci. Adv., 13 (2023) 100381, doi: 10.1016/j.apsadv.2023.100381.
  8. M. El Alouani, S. Alehyen, H. El Hadki, H. Saufi, A. Elhalil, O.K. Kabbaj, M. Taibi, Synergetic influence between adsorption and photodegradation of Rhodamine B using synthesized fly ash based inorganic polymer, Surf. Interfaces, 24 (2021) 101136, doi: 10.1016/j.surfin.2021.101136.
  9. A.S. Fahim, A.H. Abbar, Optimization of process parameters for the electrochemical oxidation treatment of petroleum refinery wastewater using porous graphite anode, Al-Qadisiyah J. Eng. Sci., 13 (2020) 125–135.
  10. S. Hube, M. Eskafi, K.F. Hrafnkelsdóttir, B. Bjarnadóttir, M.Á. Bjarnadóttir, S. Axelsdóttir, B. Wu, Direct membrane filtration for wastewater treatment and resource recovery: a review, Sci. Total Environ., 710 (2020) 136375, doi: 10.1016/j.scitotenv.2019.136375.
  11. C.Y. Teh, P.M. Budiman, K.P.Y. Shak, T.Y. Wu, Recent advancement of coagulation–flocculation and its application in wastewater treatment, Ind. Eng. Chem. Res., 55 (2016) 4363–4389.
  12. H. Khanmohammadi, B. Bayati, J. Rahbar-Shahrouzi, A.-A. Babaluo, A. Ghorbani, Molecular simulation of the ion exchange behavior of Cu2+, Cd2+ and Pb2+ ions on different zeolites exchanged with sodium, J. Environ. Chem. Eng., 7 (2019) 103040, doi: 10.1016/j.jece.2019.103040.
  13. A.E. Burakov, E.V. Galunin, I.V. Burakova, A.E. Kucherova, S. Agarwal, A.G. Tkachev, V.K. Gupta, Adsorption of heavy metals on conventional and nanostructured materials for wastewater treatment purposes: a review, Ecotoxicol. Environ. Saf., 148 (2018) 702–712.
  14. S. De Gisi, G. Lofrano, M. Grassi, M. Notarnicola, Characteristics and adsorption capacities of low-cost sorbents for wastewater treatment: a review, Sustainable Mater. Technol., 9 (2016) 10–40.
  15. T. Amiri-Yazani, R. Zare-Dorabei, M. Rabbani, A. Mollahosseini, Highly efficient ultrasonic-assisted
    pre-concentration and simultaneous determination of trace amounts of Pb(II) and Cd(II) ions using modified magnetic natural clinoptilolite zeolite: response surface methodology, Microchem. J., 146 (2018) 498–508.
  16. M.F. Mubarak, A.M.G. Mohamed, M. Keshawy, T.A. elMoghny, N. Shehata, Adsorption of heavy metals and hardness ions from groundwater onto modified zeolite: batch and column studies, Alexandria Eng. J., 61 (2022) 4189–4207.
  17. X. Yang, B. Yan, Y. Liu, F. Zhou, D. Li, Z. Zhang, Gamma-FeOOH based hierarchically porous zeolite monoliths for As(V) removal: characterisation, adsorption and response surface methodology, Microporous Mesoporous Mater., 308 (2020) 110518, doi: 10.1016/j.micromeso.2020.110518.
  18. M. Delkash, B. Ebrazi Bakhshayesh, H. Kazemian, Using zeolitic adsorbents to cleanup special wastewater streams: a review, Microporous Mesoporous Mater., 214 (2015) 224–241.
  19. M. Roni, K. Murugan, C. Panneerselvam, J. Subramaniam, M. Nicoletti, P. Madhiyazhagan, D. Dinesh, U. Suresh, H.F. Khater, H. Wei, A. Canale, A.A. Alarfaj, M.A. Munusamy, A. Higuchi, G. Benelli, Characterization and biotoxicity of Hypnea musciformis-synthesized silver nanoparticles as potential eco-friendly control tool against Aedes aegypti and Plutella xylostella, Ecotoxicol. Environ. Saf., 121 (2015) 31–38.
  20. M. Nasrollahzadeh, S.M. Sajadi, M. Maham, I. Kohsari, Biosynthesis, characterization and catalytic activity of the Pd/bentonite nanocomposite for base- and ligand-free oxidative hydroxylation of phenylboronic acid and reduction of chromium(VI) and nitro compounds, Microporous Mesoporous Mater., 271 (2018) 128–137.
  21. S. Chauhan, L.S.B. Upadhyay, Biosynthesis of iron oxide nanoparticles using plant derivatives of Lawsonia inermis (Henna) and its surface modification for biomedical application, Nanotechnol. Environ. Eng., 4 (2019), doi: 10.1007/ s41204-019-0055-5.
  22. F.Z. Janani, H. Khiar, N. Taoufik, A. Elhalil, M. Sadiq, A.V. Puga, S. Mansouri, N. Barka, ZnO–Al2O3–CeO2–Ce2O3 mixed metal oxides as a promising photocatalyst for methyl orange photocatalytic degradation, Mater. Today Chem., 21 (2021) 100495, doi: 10.1016/j.mtchem.2021.100495.
  23. K.A. Mohamad Said, M.A. Mohamed Amin, Overview on the response surface methodology (RSM) in extraction processes, J. Appl. Sci. Process Eng., 2 (2016) 8–17.
  24. K. Elsayed, C. Lacor, Modeling, analysis and optimization of aircyclones using artificial neural network, response surface methodology and CFD simulation approaches, Powder Technol., 212 (2011) 115–133.
  25. X. Sun, R. Abbass, M. Ghoroqi, I. Patra, N.K.A. Dwijendra, K.F. Uktamov, H. Jasem, Optimization of dyes and toxic metals removal from environmental water samples by clinoptilolite zeolite using response surface methodology approach, Sci. Rep., 12 (2022) 13218, doi: 10.1038/s41598-022-17636-8.
  26. J. Wang, W. Jin, H. Guo, X. Wang, J. Liu, Experimental study on ammonia nitrogen adsorption performance of zeolite powder, Chem. Eng. Trans., 46 (2015) 79–84.
  27. E. Zanin, J. Scapinello, M. de Oliveira, C.L. Rambo, F. Franscescon, L. Freitas, J.M.M. de Mello, M.A. Fiori, J.V. Oliveira, J. Dal Magro, Adsorption of heavy metals from wastewater graphic industry using clinoptilolite zeolite as adsorbent, Process Saf. Environ. Prot., 105 (2017) 194–200.
  28. R. Karami-Osboo, M. Maham, M. Nasrollahzadeh, Rapid and sensitive extraction of aflatoxins by Fe3O4/zeolite nanocomposite adsorbent in rice samples, Microchem. J., 158 (2020) 105206, doi: 10.1016/j.microc.2020.105206.
  29. K. Ramesh, K. Sammi Reddy, I. Rashmi, A.K. Biswas, Porosity distribution, surface area, and morphology of synthetic potassium zeolites: a SEM and N2 adsorption study, Commun. Soil Sci. Plant Anal., 45 (2014) 2171–2181.
  30. C. Zhao, S. Shao, Y. Zhou, Y. Yang, Y. Shao, L. Zhang, Y. Zhou, L. Xie, L. Luo, Optimization of flocculation conditions for soluble cadmium removal using the composite flocculant of green anion polyacrylamide and PAC by response surface methodology, Sci. Total Environ., 645 (2018) 267–276.
  31. S.J.S. Chelladurai, K. Murugan, A.P. Ray, M. Upadhyaya, V. Narasimharaj, S. Gnanasekaran, Optimization of process parameters using response surface methodology: a review, Mater. Today Proc., 37 (2020) 1301–1304.
  32. Z.N. Abbas, A.H. Abbar, Application of response surface methodology for optimization of cadmium removal from simulated wastewater using a rotating tubular packed bed electrochemical reactor, Al-Qadisiyah J. Eng. Sci., 13 (2020) 91–98.
  33. I.G. Ezemagu, M.I. Ejimofor, M.C. Menkiti, C.C. Nwobi-Okoye, Modeling and optimization of turbidity removal from produced water using response surface methodology and artificial neural network, S. Afr. J. Chem. Eng., 35 (2021) 78–88.
  34. H.A. Shamkhi, A.D.Z. Albdiri, F.A. Jabir, D. Petruzzelli, Removal of Pb2+, Cu2+, and Cd2+ ions from a saline wastewater using emulsion liquid membrane: applying response surface methodology for optimization and data analysis, Arabian J. Sci. Eng., 47 (2022) 5705–5719.
  35. Y.G. Asfaha, A.K. Tekile, F. Zewge, Hybrid process of electrocoagulation and electrooxidation system for wastewater treatment: a review, Cleaner Eng. Technol., 4 (2021) 100261, doi: 10.1016/j.clet.2021.100261.
  36. H. Asadian, A. Ahmadi, The extraction of gallium from chloride solutions by emulsion liquid membrane: optimization through response surface methodology, Miner. Eng., 148 (2020) 106207, doi: 10.1016/j.mineng.2020.106207.
  37. R.G. Najeeb, A.H. Abbar, Optimization of COD removal from pharmaceutical wastewater by electrocoagulation process using response surface methodology (RSM), Egypt. J. Chem., 65 (2022) 619–631.
  38. E. Fathi, P. Gharbani, Modeling and optimization removal of reactive Orange 16 dye using
    MgO/g-C3N4/zeolite nanocomposite in coupling with LED and ultrasound by response surface methodology, Diamond Relat. Mater., 115 (2021) 108346, doi: 10.1016/j.diamond.2021.108346.
  39. A.H.A. Saad, A.M. Azzam, S.T. El-Wakeel, B.B. Mostafa, M.B. Abd El-latif, Removal of toxic metal ions from wastewater using ZnO@chitosan core-shell nanocomposite, Environ. Nanotechnol. Monit. Manage., 9 (2018) 67–75.
  40. N. Elboughdiri, H. Arellano-Garcia, The use of natural zeolite to remove heavy metals Cu(II), Pb(II) and Cd(II), from industrial wastewater, Cogent Eng., 7 (2020) 1782623, doi: 10.1080/23311916.2020.1782623.
  41. I.V. Joseph, L. Tosheva, A.M. Doyle, Simultaneous removal of Cd(II), Co(II), Cu(II), Pb(II), and Zn(II) ions from aqueous solutions via adsorption on FAU-type zeolites prepared from coal fly ash, J. Environ. Chem. Eng., 8 (2020) 103895, doi: 10.1016/j.jece.2020.103895.
  42. W. Wang, J. Cui, J. Li, J. Du, Y. Chang, J. Cui, X. Liu, X. Fan, D. Yao, Removal effects of different emergent-aquatic-plant groups on Cu, Zn, and Cd compound pollution from simulated swine wastewater, J. Environ. Manage., 296 (2021) 113251, doi: 10.1016/j.jenvman.2021.113251.
  43. M. Ruthiraan, E.C. Abdullah, N.M. Mubarak, M.N. Noraini, A promising route of magnetic based materials for removal of cadmium and methylene blue from waste water, J. Environ. Chem. Eng., 5 (2017) 1447–1455.
  44. M.J. Nasir, M.J. Abdulhasan, S.Z.A. Ridha, K.S. Hashim, H.M. Jasim, Statistical assessment for performance of Al-Mussaib drinking water treatment plant at the year 2020, Water Pract. Technol., 17 (2022) 808–816.
  45. M.J. Abdulhasan, N.J.H. Al-Mansori, M.J. Nasir, Removal turbidity of water by application of electromagnetic field technology, J. Ecol. Eng., 23 (2022) 51–54.
  46. S.A. Raheem, E.J. Kadhim, M.J. Abdulhasan, Comparative study of iron removal from groundwater using low cost adsorbents, J. Ecol. Eng., 23 (2022) 18–23.