Treatment of leachate from the Technical landfill centre Aïn Defla (Algeria) by oxidation and biosorption process

The aim of this study was the treatment of leachate from the Technical Landfill Centre Aïn Defla in Algeria, which presents a serious threat to the environment. Elimination of organic matter (expressed as chemical oxygen demand (COD) and biological oxygen demand (BOD5)), suspended matter (SM), miner...

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Permalink: http://skupnikatalog.nsk.hr/Record/nsk.NSK01001144933/Details
Matična publikacija: Kemija u industriji (Online)
70 (2021), 11-12 ; str. 627-638
Glavni autori: Feraoun, Brahim (Author), Belhadj, Abd Elmouneïm, Otmanine, Khaled, Hammoudi, Mounir
Vrsta građe: e-članak
Jezik: eng
Predmet:
Online pristup: https://doi.org/10.15255/KUI.2020.075
Kemija u industriji (Online)
Hrčak
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024 7 |2 doi  |a 10.15255/KUI.2020.075 
035 |a (HR-ZaNSK)001144933 
040 |a HR-ZaNSK  |b hrv  |c HR-ZaNSK  |e ppiak 
041 0 |a eng  |b hrv 
042 |a croatica 
044 |a ci  |c hr 
080 1 |a 502/504  |2 2011 
080 1 |a 66  |2 2011 
100 1 |a Feraoun, Brahim  |4 aut  |9 HR-ZaNSK 
245 1 0 |a Treatment of leachate from the Technical landfill centre Aïn Defla (Algeria) by oxidation and biosorption process  |h [Elektronička građa] /  |c Brahim Feraoun, Abd Elmouneïm Belhadj, Khaled Otmanine, Mounir Hammoudi. 
300 |b Ilustr. ; graf. prikazi. 
504 |a Bibliografija: 54 jed. 
504 |a Abstract ; Sažetak. 
520 |a The aim of this study was the treatment of leachate from the Technical Landfill Centre Aïn Defla in Algeria, which presents a serious threat to the environment. Elimination of organic matter (expressed as chemical oxygen demand (COD) and biological oxygen demand (BOD5)), suspended matter (SM), mineral matter (phosphates and ammoniacal nitrogen), and heavy metals (zinc and iron) were experimentally studied using the coupling of oxidation (OP) and biosorption processes (BS). The analysis results showed that the leachate studied at pH 8.8 was very loaded in organic matter (turbidity of 553 NTU, SM = 820 mg l–1, COD = 9669 mg O2 l–1, and BOD5 = 8875 mg O2 l–1), in salts (EC = 19.4 mS cm–1), in ammoniacal nitrogen (2027 mg l–1), in phosphates (22.9 mg l–1), and in sulphates (750 mg l–1). It also contained significant amounts of heavy metals, notably zinc (4.21 mg l–1) and iron (47.5 mg l–1). The evolution of the physicochemical parameters during the treatment showed that, under the optimal conditions (T = 45 °C, [H2O2] = 1.6 mol l–1, volume fraction φ(H2O2) = 5 %, and [Fe3+] = 0.5 mmol l–1), the reduction in COD was about 99 %, the reduction in BOD5 was 100 %, the elimination of colloidal particles (SM) could reach 95 %, reduction in phosphates was 78 %, reduction in ammonium was 98 %, reduction in sulphates was 96 %, reduction in zinc was 92 %, and the reduction in iron was 98 %. 
520 |a Tema ovog istraživanja je obrada procjednih voda odlagališta otpada Aïn Defla u Alžiru, koje predstavljaju ozbiljnu prijetnju po okoliš. Ispitivano je uklanjanje organskih tvari (izraženo preko kemijske potrošnje kisika (KPK) i biološke potrošnje kisika (BPK5)), suspendiranih čestica (SČ), mineralnih tvari (fosfati i amonijačni dušik) i teških metala (cink i željezo) iz procjednih voda kombiniranjem procesa oksidacije i biosorpcije. Rezultati analiza pokazali su da je procjedna voda imala pH 8,8 te je bila jako opterećena organskom tvari (zamućenje = 553 NTU, SČ = 820 mg l–1; KPK = 9669 mg O2 l–1, te BPK5 = 8875 mg O2 l–1), u solima (EC = 19,4 mS cm–1), amonijačnim dušikom (2027 mg l–1), fosfatima (22,9 mg l–1) i sulfatima (750 mg l–1). Također sadržavala je i značajne količine teških metala, osobito cinka (4,21 mg l–1) i željeza (47,5 mg l–1). Iz fizikalno-kemijskih parametara praćenih tijekom obrade vidljivo je, pri optimalnim uvjetima (45 °C, [H2O2] = 1,6 mol l–1), volumni udio φ(H2O2) = 5 % i [Fe3+] = 0,5 mmol l–1), smanjenje KPK vrijednosti od 99 %, BPK5 vrijednosti od 100 %, smanjenje fosfata, amonijaka, sulfata, cinka i željeza za 78 %,98 %, 96 %, 92 %, odnosno 98 %. Također, 95,6 % suspendiranih čestica uklonjeno je tijekom obrade procjedne vode. 
653 0 |a Odlagalište otpada  |a Procjedne vode  |a Uklanjanje organskih tvari  |a Potrošnja kisika  |a Kemijska potrošnja kisika  |a Biološka potrošnja kisika  |a Biosorpcija  |a Oksidacija 
653 5 |a Alžir 
700 1 |a Belhadj, Abd Elmouneïm  |4 aut  |9 HR-ZaNSK 
700 1 |a Otmanine, Khaled  |4 aut  |9 HR-ZaNSK 
700 1 |a Hammoudi, Mounir  |4 aut  |9 HR-ZaNSK 
773 0 |t Kemija u industriji (Online)  |x 1334-9090  |g 70 (2021), 11-12 ; str. 627-638  |w nsk.(HR-ZaNSK)000530475 
981 |b Be2021  |b B03/21 
998 |b tino2212 
856 4 0 |u https://doi.org/10.15255/KUI.2020.075 
856 4 0 |u http://silverstripe.fkit.hr/kui/issue-archive/article/813  |y Kemija u industriji (Online) 
856 4 0 |u https://hrcak.srce.hr/264635  |y Hrčak 
856 4 1 |y Digitalna.nsk.hr