TY - JOUR
T1 - A new treatment step of bioelectrochemically treated leachate using natural clay adsorption towards sustainable leachate treatment
AU - Siddiqi, Sajjad Ahmad
AU - Rahman, Sadik
AU - Al-Mamun, Abdullah
AU - Nayak, Jagdeep Kumar
AU - Sana, Ahmad
AU - Baawain, Mahad Said
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2023/11
Y1 - 2023/11
N2 - Standalone and combined leachate treatment mechanisms suffer from low treatment efficiencies due to leachate’s complex, toxic, and recalcitrant nature. Bioelectrochemical system (BES) was used for the first time to investigate the treatment of leachate mixed wastewater (WW) (i.e., diluted leachate, DL) (DL ≈ L:WW = 1:4) to minimize these complexities. A natural clay (palygorskite) was used as adsorbent material for further treatment on the BES effluent (EBES) while using two different masses and sizes (i.e., 3 g and 6 g of raw crushed clay (RCC) and 75 μ of sieved clay (75 μSC)). According to bioelectrochemical performance, BES, when operated with low external resistance (R ext = 1 Ω) (BES 1), showed a high removal of COD and NH3-N with 28% and 36%, respectively. On the other hand, a high R ext (100 Ω, BES 100) resulted in low removal of NH3-N with 10% but revealed high COD removal by 78.26%. Moreover, the 6 g doses of 75 μSC and RCC showed the maximum COD removals of 62% and 38% and showed the maximum removal of NH3-N with an average range of 40% for both sizes. After efficient desorption, both clay sizes resulted in regeneration performance which was observed with high COD (75%) and NH3-N (34%) on EBES. Therefore, when BES and clay adsorption technique sequentially treated and achieved with combined removal of ~ 98% for COD and ~ 80% of NH3-N, it demonstrated an efficient treatment method for DL treatment.
AB - Standalone and combined leachate treatment mechanisms suffer from low treatment efficiencies due to leachate’s complex, toxic, and recalcitrant nature. Bioelectrochemical system (BES) was used for the first time to investigate the treatment of leachate mixed wastewater (WW) (i.e., diluted leachate, DL) (DL ≈ L:WW = 1:4) to minimize these complexities. A natural clay (palygorskite) was used as adsorbent material for further treatment on the BES effluent (EBES) while using two different masses and sizes (i.e., 3 g and 6 g of raw crushed clay (RCC) and 75 μ of sieved clay (75 μSC)). According to bioelectrochemical performance, BES, when operated with low external resistance (R ext = 1 Ω) (BES 1), showed a high removal of COD and NH3-N with 28% and 36%, respectively. On the other hand, a high R ext (100 Ω, BES 100) resulted in low removal of NH3-N with 10% but revealed high COD removal by 78.26%. Moreover, the 6 g doses of 75 μSC and RCC showed the maximum COD removals of 62% and 38% and showed the maximum removal of NH3-N with an average range of 40% for both sizes. After efficient desorption, both clay sizes resulted in regeneration performance which was observed with high COD (75%) and NH3-N (34%) on EBES. Therefore, when BES and clay adsorption technique sequentially treated and achieved with combined removal of ~ 98% for COD and ~ 80% of NH3-N, it demonstrated an efficient treatment method for DL treatment.
KW - Ammonia nitrogen
KW - Bioelectrochemical system
KW - Chemical oxygen demand
KW - Desorption
KW - Natural clay adsorption
KW - Regeneration
UR - http://www.scopus.com/inward/record.url?scp=85166768417&partnerID=8YFLogxK
U2 - 10.1007/s11356-023-28997-6
DO - 10.1007/s11356-023-28997-6
M3 - Article
C2 - 37540418
AN - SCOPUS:85166768417
SN - 0944-1344
VL - 30
SP - 111903
EP - 111915
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 52
ER -