Dr. Maria  Harja

Dr. Maria Harja

Professor
Gheorghe Asachi Technical University of Iasi, Romania


Highest Degree
Ph.D. in Chemistry from Gheorghe Asachi Technical University of Iasi, Romania

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Area of Interest:

Environmental Sciences
100%
Chemical Engineering
62%
Wastewater
90%
Material Engineerinng
75%
Heavy Metals
55%

Selected Publications

  1. Harja, M. and G. Ciobanu, 2020. Eco-friendly Nano-adsorbents for Pollutant Removal from Wastewaters. In: andbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, Kharissova O., L. Martínez and B. Kharisov (Eds), Springer International Publishing Singapore 22.
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  2. Favier, L. and M. Harja, 2020. TiO2/Fly ash nanocomposite for photodegradation of organic pollutant. In: Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, Kharissova, O.V., L.M.T. Martínez and B.I. Kharisov, Springer International Publishing, Cham, pp: 1-24.
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  3. Buema, G., N. Lupu, H. Chiriac, T. Roman, M. Porcescu, G. Ciobanu, D.V. Burghila and M. Harja, 2020. Eco-friendly materials obtained by fly ash sulphuric activation for cadmium ions removal. Mat., 10.3390/ma13163584.
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  4. Shchemelinina, T., O. Kotova, M. Harja and E. Anchugova, 2019. Biogeosorbents for solving ecological problems. IOP Conf. Ser.: Mater. Sci. Eng., 10.1088/1757-899X/613/1/012042.
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  5. Litu, L., G. Ciobanu, S.M. Cimpeanu, O. Kotova, R. Ciocinta, D. Bucur and M. Harja, 2019. Comparative study between flocculation-coagulation processes in raw/wastewater treatment. AgroLife Scient. J., 85: 139-145.
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  6. Iftode, V.I., I. Olteanu-Dontov, P. Mihai, M. Budescu and M. Harja, 2019. Improving elastic properties of bricks by polyurethane matrices mean. IOP Conf. Ser.: Mater. Sci. Eng., 10.1088/1757-899X/586/1/012009.
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  7. Harja, M., G. Ciobanu, T. Juzsakova and I. Cretescu, 2019. New approaches in modeling and simulation of CO2 absorption reactor by activated potassium carbonate solution. Processes, Vol. 7. 10.3390/pr7020078.
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  8. De Castro, C.G., C.N. Duduman, M. Harja, D. Lutic, T. Juzsakova and I. Cretescu, 2019. New TiO2-Ag nanoparticles used for organic compound degradation. Environ. Eng. Manage. J., 18: 1755-1763.
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  9. Ciobanu, G. and M. Harja, 2019. Cerium-doped hydroxyapatite/collagen coatings on titanium for bone implants. Ceramic Int., 45: 2852-2857.
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  10. Ciobanu, G. and M. Harja, 2019. Bismuth-doped Nanohydroxyapatite coatings on Titanium implants for improved radiopacity and antimicrobial activity. Nanomaterials, 10.3390/nano9121696.
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  11. Ciobanu and Harja, 2019. Bismuth-doped nanohydroxyapatite coatings on titanium implants for improved radiopacity and antimicrobial activity. Nanomat., 10.3390/nano9121696.
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  12. Harja, M., G. Ciobanu, L. Rusu and L. Lazar, 2018. The enhancement factor approach for chemosorption process. Environ. Eng. Manage. J., 17: 813-820.
  13. Harja, M. and G. Ciobanu, 2018. Studies on adsorption of oxytetracycline from aqueous solutions onto hydroxyapatite. Sci. Total Environ., 628-629: 36-43.
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  14. Duduman, C.N., J.M.G. de Salazar y Caso de Los Cobos, M. Harja, M.I. Barrena Pérez and C.G. de Castro et al., 2018. Preparation and characterization of nanocomposite material based on Tio2-ag for environmental applications. Environ. Eng. Manage. J., 17: 925-936.
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  15. Cretescu I., M. Harja, C. Teodosiu, D.N. Isopescu and M.F. Chok et al., 2018. Synthesis and characterisation of a binder cement replacement based on alkali activation of fly ash waste. Process Saf. Environ. Prot., 119: 23-35.
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  16. Ciobanu, G. and M. Harja, 2018. Studies on the sorption of levofloxacin from aqueous solutions onto nanohydroxyapatite. Revue Roumaine de Chimie, 63: 593-601.
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  17. Shchemelinina, T.N., O.B. Kotova, M. Harja, E.M. Anchugova, Y. Pelovski and I. Cretescu, 2017. New trends in the mechanisms of increasing productivity of mineral-based materials. Vestnik IG Komi SC UB RAS, 6: 40-42.
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  18. Kotova, O.B., M. Harja, I. Cretescu, F. Noli, Y. Pelovski and D.A. Shushkov, 2017. Zeolites in technologies of pollution prevention and remediation of aquatic systems. Vestnik IG Komi SC UB RAS, 5: 49-53.
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  19. Ciobanu, G., M. Harja and L. Rusu, 2017. Biomimetic hydroxyapatite-silver coatings on titanium surfaces. Revue Roumaine de Chimie, 62: 449-454.
  20. Rusu, L., M. Harja, D. Suteu and A. Dabija, 2016. Pesticide residues contamination of milk and dairy products. A case study: Bacau district area, Romania. J. Environ. Protect. Ecol., 17: 1229-1241.
  21. Noli, F., M. Kapnisti, M. Harja and G. Buema, 2016. Retention of barium and europium radionuclides from aqueous solutions on ash-based sorbents by application of radiochemical techniques. Applied Radiation Isotopes, 116: 102-109.
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  22. Noli, F., G. Buema, P. Misaelides and M. Harja, 2016. Retention of cesium from aqueous solutions using synthetic zeolites produced from power plant ash. J. Radioanal. Nucl. Chem., 309: 589-596.
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  23. Nacu, G., D. Bulgariu, M.C. Popescu, M. Harja, D.T. Juravle and L. Bulgariu, 2016. Removal of Zn(II) ions from aqueous media on thermal activated sawdust. Desalin. Water Treat., 57: 21904-21915.
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  24. Harja, M., S.M. Cimpeanu, M. Dirja and D. Bucur, 2016. Synthesis of Zeolite from Fly Ash and their Use as Soil Amendment. In: Zeolites: Useful Minerals, Belviso, C. (Ed.). BoD–Books on Demand, USA, ISBN: 9789535125761, pp: 43-66.
  25. Favier, L., M. Harja, A.I. Simion, Y. Kadmi, M.L. Pacala, L. Rusu and A. Bouzaza, 2016. Advanced oxidation process for the removal of chlorinated phenols in aqueous suspensions. J. Environ. Protect. Ecol., 17: 1132-1141.
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  26. Ciobanu, G., S. Barna and M. Harja, 2016. Kinetic and equilibrium studies on adsorption of Reactive Blue 19 dye from aqueous solutions by nanohydroxyapatite adsorbent. Arch. Environ. Protect., 309: 589-596.
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  27. Noli, F., G. Buema, P. Misaelides and M. Harja, 2015. New materials synthesized from ash under moderate conditions for removal of toxic and radioactive metals. J. Radioanalytical Nuclear Chem., 303: 2303-2311.
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  28. Kadmi, Y., L. Favier, M. Harja, A.I. Simion, L. Rusu and D. Wolbert, 2015. A new strategy for pentachlorophenol monitoring in water using ultra-high-performance liquid chromatography-tandem mass spectrometry. Environ. Eng. Manage. J., 14: 567-574.
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  29. Harja, M., G. Buema, L. Bulgariu, D. Bulgariu, D.M. Sutiman and G. Ciobanu, 2015. Comparative study for removal of cadmium (II) onto low cost adsorbents. Korean J. Chem. Eng., 32: 1804-1811.
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  30. Cretescu, I., G. Soreanu and M. Harja, 2015. A low-cost sorbent for removal of copper ions from wastewaters based on sawdust/fly ash mixture. Int. J. Environ. Sci. Technol., 12: 1799-1810.
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  31. Ciobanu, G., M. Harja and O. Ciobanu, 2015. Use of the information concerning the products manufacturing in innovative learning and education programme for health care sector. Applied Mech. Mater., 809/810: 1547-1552.
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  32. Rusu, L., M. Harja, C. Munteanu and G. Ciobanu, 2014. Red and brown peat use in removing pollutants from municipal and industrial wastewater. J. Environ. Prot. Ecol., 15: 1690-1699.
  33. Curteanu, S., G. Buema, C.G. Piuleac, D.M. Sutiman and M. Harja, 2014. Neuro-evolutionary optimization methodology applied to the synthesis process of ash based adsorbents. J. Ind. Eng. Chem., 20: 597-604.
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  34. Ciobanu, G., M. Harja, M. Diaconu, C. Cimpeanu, R. Teodorescu and D. Bucur, 2014. Crystal violet dye removal from aqueous solution by nanohydroxyapatite. J. Food Agric. Environ., 12: 499-502.
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  35. Ciobanu, G., M. Harja and O. Ciobanu, 2014. An overview on assistive technology training courses for salespersons. Applied Mech. Mater., 659: 585-588.
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  36. Buema, G., F. Noli, P. Misaelides, D.M. Sutiman, I. Cretescu and M. Harja, 2014. Uranium removal from aqueous solutions by raw and modified thermal power plant ash. J. Radioanal. Nuclear Chem., 299: 381-386.
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  37. Savic, R., L. Maksimovic, S. Cimpeanu, D. Bucur and G. Ondrasek et al., 2013. Hazardous and harmful substances in sediments of the Jegricka stream. J. Food Agric. Environ., 11: 1152-1156.
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  38. Harja, M., G. Buema, D.M. Sutiman and I. Cretescu, 2013. Removal of heavy metal ions from aqueous solutions using low-cost sorbents obtained from ash. Chem. Pap., 67: 497-508.
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  39. Harja, M., A. Szep, L. Lazar and N. Apostolescu, 2013. Engineering of Inorganic Products: Inorganic Salts. Editura Ecozone, Iasi, Romania, ISBN: 978-973-7645-93-7, Pages: 209.
  40. Harja, M. and M. Barbuta, 2013. Influence of different additions on frost-thaw and chemical resistance of polymer concrete. Adv. Sci. Lett., 19: 455-459.
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  41. Harja, M. and A. Szep, 2013. Solid-Fluid Necatalitic Process. Editura Ecozone, Iasi, Romania, ISBN: 978-973-7645-95-1, Pages: 269.
  42. Fortuna, M.E., M. Harja, D. Bucur and S.M. Cimpeanu, 2013. Obtaining and utilizing cellulose fibers with in-situ loading as an additive for printing paper. Materials, 6: 4532-4544.
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  43. Diaconescu, R.M., M. Barbuta and M. Harja, 2013. Prediction of properties of polymer concrete composite with tire rubber using neural networks. Mater. Sci. Eng.: B, 178: 1259-1267.
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  44. Cretescu, I., A. Savin, M. Cimpeanu, D. Bucur and M. Harja, 2013. Optimization of wine decolorization by microfiltration on polyurethane membranes. J. Food Agric. Environ., 11: 221-226.
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  45. Ciocinta, R.C., M. Harja, D. Bucur and G. Buema, 2013. Optimization of the conditions for conversion of coal ash into zeolite material. J. Food Agric. Environ., 11: 1108-1112.
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  46. Ciobanu, G., S. Ilisei, M. Harja and C. Luca, 2013. Removal of reactive blue 204 dye from aqueous solutions by adsorption onto nanohydroxyapatite. Sci. Adv. Mater., 5: 1090-1096.
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  47. Buema, G., S.M. Cimpeanu, D. Sutiman, R.D. Bucur and L. Rusu et al., 2013. Lead removal from aqueous solution by bottom ash. J. Food Agric. Environ., 11: 1137-1141.
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  48. Barbuta, M., I.O. Toma, M. Harja, A.M. Toma and C. Gavriloaia, 2013. Behaviour of short polymer-high strength concrete columns under eccentric compression. Arch. Civil Mech. Eng., 13: 119-127.
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  49. Petrovic, S., M. Dimitrijevic, S.M. Cimpeanu, D. Bucur and A. Gurita et al., 2012. Spike yield stability in wheat grown under stress conditions of alkaline soil. J. Food. Agricul. Environ., 10: 480-484.
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  50. Harja, M., L. Rusu, D. Bucur and R.C. Ciocinta, 2012. Fly ash-derived zeolites as adsorbents for Ni removal from wastewater. Revue Romaine Chimie, 57: 587-597.
  51. Harja, M., G. Buema, D.M. Sutiman, C. Munteanu and D. Bucur, 2012. Low cost adsorbents obtained from ash for copper removal. Korean J. Chem. Eng., 29: 1735-1744.
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  52. Harja, M., D. Bucur, S.M. Cimpeanu, A.A. Gurita and R.C. Ciocinta, 2012. Conversion of ash on zeolites for soil application. J. Food. Agricul. Environ., 10: 1056-1059.
  53. Harja, M., C. Cimpeanu and R.D. Bucur, 2012. The influence of hydrodinamic conditions on the synthesis of ultra-thin calcium carbonate.. J. Food. Agricult. Environ., 10: 1191-1195.
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  54. Harja, M. and R.E. Tataru Farmus, 2012. Modeling and Design of Chemical Reactors. Performantica, Iasi, Romania, Pages: 126.
  55. Harja, M. and M. Barbuta, 2012. Pollutants from Power Plants and its Effect. In: Current Topics, Concepts and Research Priorities in Environmental Chemistry, Zaharia, C. (Ed.). Vol. 2, Chapter 3, Editura Universitatii Alexandru Ioan Cuza, Iasi, Romania, ISBN-13: 9789737037978, pp: 45-59.
  56. Ciocinta, R.C., M. Harja, D. Bucur, L. Rusu and M. Barbuta, 2012. Improving soil quality by adding modified ash. Env. Eng. Manag. J., 11: 297-305.
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  57. Bucur, R., M. Harja, 2012. Homogeneous areas delimitation by considering the energy demand for plants growing in covered spaces. Env. Eng. Manag. J., 11: 253-257.
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  58. Barbuta, M. and M. Harja, 2012. Environmental Changes Caused by the Building Materials Industry. In: Current Topics, Concepts and Research Priorities in Environmental Chemistry, Zaharia, C. (Ed.). Vol. 1, Chapter 5, Editura Universitatii Alexandru Ioan Cuza, Iasi, Romania, ISBN-13: 9789737037978, pp: 109-124.
  59. Barbuţa, M., R.M. Diaconescu and M. Harja, 2012. Using neural networks for prediction of properties of polymer concrete with fly ash. J. Mat. Civ. Engin., 24: 523-528.
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  60. Harja, M., M. Barbuta, L. Rusu, C. Munteanu and G. Buema et al., 2011. Simultaneous removal of Astrazone blue and lead onto low cost adsorbents based on power plant ash. Environ. Eng. Manage. J., 10: 341-347.
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  61. Harja, M., D. Bucur, L. Rusu, M. Barbuta and R.C. Ciocinta, 2011. Corneliu munteanu, ash modified for improvement soil quality. Proceedings of the International Conference Environmental Engineering and Management-Green Future, September 1-4, 2011, Hungar. -.
  62. Barbuta, M., M. Harja, I. Cretescu and G. Soreanu, 2011. Influence of wastes content on properties of polymer concrete. Proceedings of the 7th International Symposium on Cement Based Materials for a Sustainable Agriculture, September 18-21, 2011, Canada -.
  63. Harja, M., R.C. Ciocinta, M. Barbuta, L. Rusu and A.I. Simion, 2010. CaCO3 controllable synthesis by double exchange method using CaCl2 residual solutions. Environ. Eng. Manage. J., 9: 1571-1577.
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  64. Harja, M. and R.C. Ciocinta, 2010. Synthesis and Characterization of Calcium Carbonate Used as Filler in Paper Industry. Performantica, Iasi, Romania, ISBN: 978-973-730-783-5, Pages: 175.
  65. Barbuta, M., M. Harja and I. Baran, 2010. Comparison of mechanical properties for polymer concrete with different types of filler. J. Mat. Civ. Engin., 22: 696-701.
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  66. Barbuta, M., M. Harja and D. Babor, 2010. Concrete polymer with fly ash. Morphologic analysis based on scanning electron microscopic observations. Rev. Romana. Mat., 40: 337-345.
  67. Harja, M., R.C. Ciocinta, I. Creţescu, M. Apostolescu and M. Barbuta, 2009. Crystal growth of calcium carbonate with various morphologies from residual calcium chloride solution. Rev. Chim., 60: 1025-1031.
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  68. Harja, M., M. Barbuta and M. Gavrilescu, 2009. Study of morphology for geopolymer materials obtained from fly ash. Environ. Eng. Manage. J., 8: 1021-1027.
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  69. Harja, M., M. Barbuta and L. Rusu, 2009. Obtaining and characterization of the polymer concrete with fly ash. J. Applied Sci., 9: 88-96.
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  70. Harja, M., M. Barbuţa and M. Gavrilescu, 2009. Utilization of coal fly ash from power plants II. Geopolymer obtaining. Environ. Eng. Manage. J., 8: 513-520.
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  71. Harja, M., I. Cretescu, L. Rusu and R.C. Ciocinta, 2009. The influence of experimental factors of calcium carbonate morphology prepared by carbonation. Rev. Chim., 60: 1258-1263.
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  72. Barbuta, M., N. Taranu and M. Harja, 2009. Wastes used in obtaining polymer composite. Env. Eng. Manag. J., 8: 1145-1150.
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  73. Barbuta, M., C. Gavriloaie and M. Harja, 2009. Elements From Polymeric Concrete. Politehnium, Iaşi, ISBN: 978-973-621-267-3, Pages: 120.
  74. Barbuta, M. and M. Harja, 2009. Polymer Concrete. Politehnium, Iaşi, ISBN: 978-973-621-268-0, Pages: 186.
  75. Harja, M., M. Barbuta, L. Rusu and N. Apostolescu, 2008. Utilization of coal fly ash from power plants I. Ash characterization. Environ. Eng. Manage. J., 7: 289-294.
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  76. Rusu, L. and M. Harja, 2007. Chemical and Biochemical Processes, I. Chemical Processes. PIM, Iaşi, ISBN: 978-973-716-744-6, Pages: 321.
  77. Al., S. and M. Harja, 2007. Studiul absorbţiei dioxidului de sulf in suspensii de carbonat de calciu rezidual. REV. CHIM., 10: 870-874.
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  78. Petrescu, S.T. and M. Harja, 2006. Chemical Reactor for Eterogen Systems. Venus Publishing House, New Delhi, ISBN: 978-973-756-044-5, Pages: 294.
  79. Harja, M. and I. Balasanian, 2006. Chemical Thermoenergetic. Ecozone Publishing House, Iasi, ISBN 973-7645-29-4, Pages: 269.
  80. Ciobanu, M.G., L.D. Ghenghea, G. Carja and M. Harja, 2006. Advanced Materials-SAPO-n Crystalline Microporous Zeolites. CERMI Publishing House, Iasi, ISBN: 13-978-973-667-192-0. Pages: 220.
  81. Istrati, L. and M. Harja, 2005. Biotechology in Environment. Technica-Info Chisinau Publishing, Republica Moldova, ISBN: 9975-63-147-7, Pages: 265.
  82. Harja, M. and M.G. Ciobanu, 2004. Inorganic Composite Materials. Matrix Rom Publishing House, Bucharest,ISBN: 973-685-701-8, Pages: 194.
  83. Harja., M., L. Istrati and R. Smocot, 2003. Technology of Inorganic Binder. CERMI Scientific Technique and Didactic Publishing House, Iasi, ISBN: 973-667-004-x, Pages: 280.