{"id":1072,"date":"2021-12-02T10:42:07","date_gmt":"2021-12-02T10:42:07","guid":{"rendered":"http:\/\/sustinwater.icpm.tuiasi.ro\/?page_id=1072"},"modified":"2022-12-05T07:37:08","modified_gmt":"2022-12-05T07:37:08","slug":"rezultate-etapa-2-2022","status":"publish","type":"page","link":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/rezultatele-proiectului\/rezultate-etapa-2-2022\/","title":{"rendered":"Rezultate Etapa 2 (2022)"},"content":{"rendered":"\n

Rezumatul etapei 2 (2022)<\/a> \/ Indicatori de rezultat <\/a><\/p>\n\n\n\n

go to: Rezultate Etapa 1<\/a> \/ Rezultate etapa 3 \/ English version<\/a> \/\u00a0Download Rezumat RST Etapa 2 2022<\/a><\/p>\n\n\n\n

Rezumatul Etapei 2 (2022)<\/h1>\n\n\n\n

\u00cen cadrul Etapei II (2022) a proiectului intitulat Solu\u0163ii inovative \u0219i sustenabile pentru eliminarea poluan\u021bilor prioritari \u0219i emergen\u021bi prin procese de epurare avansat\u0103 a apelor uzate (SUSTINWATER) <\/em>au fost  prev\u0103zute un num\u0103r de 3 activit\u0103\u021bi de cercetare stiintifica. Toate activit\u0103\u021bile au fost realizate complet \u0219i la timp, ceea ce a condus la \u00eendeplinirea obiectivelor pentru anul 2022 \u0219i la realizarea \u0219i dep\u0103\u0219irea indicatorilor de proiect. <\/strong>O descriere sintetic\u0103 a principalelor activit\u0103\u021bi desf\u0103\u0219urate \u00een aceast\u0103 etap\u0103 este prezentat\u0103 \u00een urm\u0103toarele paragrafe.<\/p>\n\n\n\n

Prima activitate a Etapei II<\/strong> (A2.1) a proiectului const\u0103 \u00een monitorizarea indicatorilor generali \u0219i ai concentra\u021biilor poluan\u021bilor prioritari ai efluentului sta\u021biei de epurare a apelor uzate municipale din Ia\u0219i \u0219i ai unor ape de suprafa\u021b\u0103. Aceast\u0103 activitate a fost realizat\u0103 \u00een timp de \u0219ase luni, \u00een perioada februarie – iulie 2022. Probele de efluent au fost analizate \u00een cadrul Laboratorului de Analiz\u0103 \u0219i Control Factori de Mediu-LACMED, acreditat pentru 17 indicatori de c\u0103tre Asocia\u021bia de Acreditare din Rom\u00e2nia \u00een conformitate cu SR EN ISO\/CEI 17025:2018 (certificat RENAR LI 1054, emis in data de 18.03.2015 si actualizat in data de 09.11.2020.).<\/p>\n\n\n\n

A doua activitate a acestei etape (A2.2)<\/strong> a avut ca obiectiv investigarea capacit\u0103\u021bii de sorb\u021bie a celor 12 materiale compozite (opt sorben\u021bi prin metoda strat-dup\u0103-strat (LbL) \u0219i patru sorben\u021bi prin depunere de coacervat (one-pot)) sintetizate \u00een etapa precedent\u0103 a proiectului. To\u021bi ace\u0219ti sorben\u021bi compozi\u021bi au fost mai \u00eent\u00e2i testa\u021bi in regim static pentru adsorbtia metalelor grele (ioni de Cd2+<\/sup>, Pb2+<\/sup> \u0219i Ni2+<\/sup>) din apa uzat\u0103. Pentru determinarea caracteristicilor procesului de sorb\u021bie a ionilor de Cd2+<\/sup>, s-a studiat influen\u021ba mai multor parametri (pH, concentra\u021bie ini\u021bial\u0103, timp de contact). Modelarea datelor cinetice \u0219i la echilibru a fost realizat\u0103 prin regresie neliniar\u0103, aplic\u00e2nd metodologia sumei normalizate a erorilor \u0219i a criteriului informa\u021bional. O caracteristic\u0103 comun\u0103 a materialelor compozite polielectrolitice ob\u021binute prin metoda LbL este sc\u0103derea rapid\u0103 a eficien\u021bei de \u00eendep\u0103rtare cu cre\u0219terea concentra\u021biei ini\u021biale de ioni metalici, indic\u00e2nd adecvarea acestor sorben\u021bi pentru ape cu concentra\u021bii reduse de poluan\u021bi. Sorben\u021bii compozi\u021bi ob\u021binu\u021bi prin metoda depunerii de coacervat (one-pot) au prezentat performan\u021be de sorb\u021bie superioare, ob\u021bin\u00e2nd eficien\u021be de re\u021binere \u00eentre 35% \u0219i 99.9% pentru un interval de concentra\u021bie ini\u021bial\u0103 de 2-130 mg Cd2+<\/sup>\/L. Comparativ cu metoda LbL, aceast\u0103 metod\u0103 de sintez\u0103 prezint\u0103 mai multe avantaje, printre care facilitate, rapiditate \u0219i o cantitate mai mare de frac\u021bie organic\u0103 depus\u0103 \u00eentr-o singur\u0103 etap\u0103. Capacit\u0103\u021bile maxime de sorb\u021bie ob\u021binute depind de cantitatea de grupe func\u021bionale, adic\u0103 sunt propor\u021bionale cu cantitatea de polielectroli\u021bi depus\u0103 pe miezul de silice. O alt\u0103 caracteristic\u0103 practic\u0103 important\u0103 a unui bun sorbent este capacitatea sa de regenerare, mai exact, poten\u021bialul de reutilizare. Sorben\u021bii compozi\u021bi de tip coacervat au putut fi reutiliza\u021bi \u00een trei cicluri consecutive de adsorb\u021bie-desorb\u021bie, cu o sc\u0103dere a eficien\u021bei de re\u021binere a ionilor metalici mai mic\u0103 de 18%.<\/p>\n\n\n\n

Evaluarea performan\u021belor sorben\u021bilor sintetiza\u021bi a fost realizat\u0103 pentru sistem bi-component anorganic (ioni de Pb2+<\/sup> sau Cd2+<\/sup>) + organic (diclofenac de sodiu (DCF-Na) sau eritromicin\u0103 (ERY)), \u00een dou\u0103 configur\u0103ri ale procesului de sorb\u021bie: secven\u021bial\u0103 \u0219i simultan\u0103. IS\/(PEI-PMAA)c<\/sub> (r=1.0) \u00ee\u0219i men\u021bine abilitatea de sorb\u021bie a DCF-Na dup\u0103 6 etape de sorb\u021bie secven\u021bial\u0103, \u00een timp ce capacitatea de re\u021binere a ionilor de plumb din solu\u021bie scade. Studiul de sorb\u021bie simultan\u0103 a ERY \u0219i a ionilor de plumb a avut ca obiectiv ob\u021binerea valorilor optime ale unor factori de influen\u021b\u0103 cu ajutorul metodologiei suprafe\u021bei de r\u0103spuns. Au fost realizate 20 de experimente, variind concentra\u021bia ini\u021bial\u0103 a poluan\u021bilor \u0219i timpul de contact \u00eentre faza lichid\u0103 \u0219i cea solid\u0103.<\/p>\n\n\n\n

\u00cen cadrul celei de-a treia activit\u0103\u021bi de cercetare (A2.3)<\/strong> a fost realizat un studiu de evaluare a ciclului de via\u021b\u0103 (ECV) pentru analiza performan\u021bei de mediu a materialelor sintetizate. Obiectivul general al studiului a fost acela de evalua performan\u021ba tehnic\u0103 \u0219i de mediu a doi sorben\u021bi compozi\u021bi, IS\/(PEI\/PAA)4.5<\/sub> (r = 0.1) \u0219i IS\/(PEI\/PAA)c<\/sub> (r = 1.0), utiliza\u021bi la eliminarea ionilor de Cd2+<\/sup> din fluxuri apoase. S-au considerat dou\u0103 unit\u0103\u021bi func\u021bionale: 1g material compozit sintetizat  \u0219i respectiv 1 mg ioni Cd2+<\/sup> elimina\u021bi. La stabilirea limitelor sistemului au fost luate \u00een considerare toate fluxurile materiale \u0219i de energie care intr\u0103 \u00een procesele de sintez\u0103 studiate, precum \u0219i fluxurile de ie\u0219ire (sub form\u0103 de produse – microparticulele de compozite \u0219i poluan\u021bi \u2013 sub form\u0103 ap\u0103 uzat\u0103). Pentru evaluarea impactului ciclului de via\u021b\u0103 a fost aleas\u0103 o metod\u0103 de evaluare consacrat\u0103 (Recipe 2016). Profilurile de mediu pentru ob\u021binerea a 1g material compozit arat\u0103 contribu\u021bia semnificativ\u0103 a particulei suport din silice poroas\u0103 \u00een toate categoriile de impact, datorit\u0103 ponderii foarte mari a masei de silice \u00een masa total\u0103 a compozitului. Pe l\u00e2ng\u0103 aceasta, fluxul care contribuie semnificativ \u00een majoritatea categoriilor este poli(etilenimina), \u00een timp ce ob\u021binerea apei ultrapure genereaz\u0103 impacturi \u00een categoriile legate de eutrofizare, iar celelalte substan\u021be chimice au o contribu\u021bie limitat\u0103. Trebuie precizat faptul c\u0103 pentru ambele sinteze nu se consum\u0103 deloc energie (nici electric\u0103 \u0219i nici sub form\u0103 de c\u0103ldur\u0103). Atunci c\u00e2nd se compar\u0103 cele dou\u0103 materiale consider\u00e2nd cantitatea specific\u0103 de poluant eliminat\u0103, diferen\u021bele de performan\u021b\u0103 de mediu dintre cei doi sorben\u021bi sunt mai mult dec\u00e2t evidente \u0219i sinteza de tip coacervat (one-pot) are o performan\u021b\u0103 net superioar\u0103. Acestea se datoreaz\u0103 faptului c\u0103 materialul sintetizat prin metoda one-pot are o capacitate de sorb\u021bie mult mai mare pentru ionii de cadmiu. Au fost propuse \u0219i c\u00e2teva scenarii pentru a evalua diverse oportunit\u0103\u021bi de proiectare ecologic\u0103 (\u00eenlocuirea materialelor toxice \u0219i a substan\u021belor chimice, modificarea parametrilor opera\u021bionali etc.).<\/p>\n\n\n\n

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Indicatori de rezultat<\/h1>\n\n\n\n

Articole \u0219tiintifice<\/h2>\n\n\n\n

Bucatariu F., Petrila L-M, Teodosiu C*., Mihai M*, 2022.<\/strong> Versatile nanostructured SiO2<\/sub>\/cross-linked polyelectrolyte composites for emerging pollutants removal from aqueous media,<\/strong> Comptes Rendus Chimie<\/em> pag: 1-14,<\/em> DOI: https:\/\/doi.org\/10.5802\/crchim.171<\/a>, (Q3, IF=2.550, ISI Web of Science) (raportat in 2021 si actualizat in 2022).<\/p>\n\n\n\n

Morosanu I., Paduraru C., Bucatariu F., Fighir D., Mihai M.*, Teodosiu C*, 2022.<\/strong> Shaping polyelectrolyte composites for heavy metals adsorption from wastewater: experimental assessment and equilibrium studies, <\/strong>Journal of Environmental Management,<\/em> 321, <\/strong>115999, DOI: https:\/\/doi.org\/10.1016\/j.jenvman.2022.115999<\/a>  (Q1, IF=8.910, ISI Web of Science)<\/p>\n\n\n\n

Ciobanu R., Teodosiu C.*, Almeida C.M.V.B., Agostinho F., Giannetti B.F., 2022<\/strong>. Sustainability Analysis of a Municipal Wastewater Treatment Plant through Emergy Evaluation<\/strong>. Sustainability<\/em>. 14(11):6461. DOI: https:\/\/doi.org\/10.3390\/su14116461<\/a> (Q2, IF=3.889, ISI Web of Science).<\/p>\n\n\n\n

Petrila L.-M., Gradinaru V.R., Bucatariu F., Mihai, M.*, 2022. Polymer\/Enzyme Composite Materials \u2013 Versatile Catalysts with Multiple Applications, <\/strong>Chemistry<\/em>, 4(4), 1312-1338; https:\/\/doi.org\/10.3390\/chemistry4040087<\/a> (indexat in BDI: Scopus, ESCI (Web of Science), CAPlus \/ SciFinder)<\/p>\n\n\n\n

Alte publicatii:<\/h2>\n\n\n\n

Carti\/capitole de carti publicate in edituri internationale<\/strong><\/h4>\n\n\n\n

B\u00e2rjoveanu G., Teodosiu C., Mihai M., Moro\u0219anu I., Fighir D., Vasiliu A-M., Bucatariu F. 2022<\/strong>. Life cycle assessment for eco-design in product development<\/strong>, Chapter of the Book: Assessing the sustainability progress: frameworks, tools and case studies, <\/em>Editors: Teodosiu C., Fiore S., Hospido A. (Elsevier contract no. 846739), published by Elsevier Netherlands, ISBN: 978-0-323-85851-9, pages: 247-271 (25 pages), DOI: https:\/\/doi.org\/10.1016\/B978-0-323-85851-9.00012-2<\/a> (raportat in 2021 si  publicat in 2022)<\/p>\n\n\n\n

Comunicari stiintifice<\/h2>\n\n\n\n

Ciobanu R., Morosanu I., Fighir D., Paduraru C., Bucatariu F., Mihai M., Teodosiu C.*, 2022. Equilibrium studies for the removal of Cd2+<\/sup> ions from wastewater using silica\/polyelectrolyte multilayer core-shell composites<\/strong>, 6th International Conference on Chemical Engineering Innovative Materials and Processes for a Sustainable Development (ICCE6), October 5 \u2013 7, 2022 \u2013 online<\/p>\n\n\n\n

Barjoveanu G., F., Teodosiu C., Morosanu I., Fighir D., Bucatariu F., Mihai M. 2022.  Life cycle assessment as support tool for development of novel materials used in environmental applications<\/strong>, 1st International Conference on Sustainable Chemical and Environmental Engineering (SUSTENG), 31.08.-04.09.2022, Rethymno, Crete, Greece.<\/p>\n\n\n\n

Morosanu I., Paduraru C., Bucatariu F., Fighir D., Mihai M., Teodosiu C., 2022. Immobilization of cadmium ions from wastewater onto polyelectrolyte composite sorbents<\/strong>, 12th International Conference on Materials Science & Engineering (BRAMAT 2022), 09-12.03.2022, Brasov, Romania<\/p>\n\n\n\n

Mihai M., 2022. Polyelectrolyte-based architectures for targeted applications in water cleaning and medicine<\/strong>, 20th National Symposium Polymers 2022 open to International Participation (POLYMERS 2022), Velingrad, Bulgaria, 5-8.07.2022 (keynote invitat)<\/p>\n\n\n\n

Mihai M., 2022. Polyelectrolytes in multicomponent systems. Application in water cleaning and medicine<\/strong>, Conferinta Nationala de Chimie, 04-07.10.2022, Calimanesti Caliulata, Romania (conferinta plenara)<\/p>\n\n\n\n

Mihai M., 2022. (Multi)functional ionic polymers. synthesis, materials design, application<\/strong>, Conferinta New Trends and Strategies in the Chemistry of Advanced Materials with Relevance in Biological Systems, Technique and Environmental Protection, 20-21.10.2022, Timi\u0219oara, Rom\u00e2nia (conferinta plenara)<\/p>\n\n\n\n

Stagii de cercetare:<\/h2>\n\n\n\n

Stagiu de cercetare realizat de c\u0103tre doamna dr.habil. Marcela Mihai \u00een perioada 17.09.2022-01.10.2022 la Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Atena, Grecia.<\/strong><\/p>\n\n\n\n

Workshop-uri<\/h2>\n\n\n\n

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<\/p>\n","protected":false},"excerpt":{"rendered":"

Rezumatul etapei 2 (2022) \/ Indicatori de rezultat go to: Rezultate Etapa 1 \/ Rezultate etapa 3 \/ English version \/\u00a0Download Rezumat RST Etapa 2 2022 Rezumatul Etapei 2 (2022) \u00cen cadrul Etapei II (2022) a proiectului intitulat Solu\u0163ii inovative \u0219i sustenabile pentru eliminarea poluan\u021bilor prioritari \u0219i emergen\u021bi prin procese de epurare avansat\u0103 a apelor … Continue reading Rezultate Etapa 2 (2022)<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":361,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/pages\/1072"}],"collection":[{"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/comments?post=1072"}],"version-history":[{"count":15,"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/pages\/1072\/revisions"}],"predecessor-version":[{"id":1336,"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/pages\/1072\/revisions\/1336"}],"up":[{"embeddable":true,"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/pages\/361"}],"wp:attachment":[{"href":"https:\/\/sustinwater.icpm.tuiasi.ro\/index.php\/wp-json\/wp\/v2\/media?parent=1072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}