Novel approach to ammonia recovery from anaerobic digestion via side-stream stripping at multiple pH levels

Palakodeti, Advait; Rupani, Parveen Fatemeh; Azman, Samet; Dewil, Raf; Appels, Lise

doi:10.1016/j.biortech.2022.127685

Cited by 6 publications

(2 citation statements)

References 37 publications

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“…While at a pH value of 7, hydrogen and carbon dioxide constituted, on average, 117 and 314 mL, respectively. In contrast to pH 6 and 7, a pH value of 8 produced much lower (1 mL) due to high pH levels, which might harm microbial activity (Palakodeti et al., 2022). This study shows that maintaining pH at 8.0 was not suitable for hydrogen‐producing during the process of producing optimal hydrogen yield.…”

Section: Resultsmentioning

confidence: 99%

Biohythane production from pineapple peel using Methanosarcina mazei enhanced with palm oil mill effluent (POME) sludge in single‐stage anaerobic digestion

Kopli,

Hassim,

Asli

et al. 2023

Environmental Quality Mgmt

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Biohythane production via single‐stage anaerobic digestion (AD) is an effective way for sustainable energy recovery from lignocellulosic biomass. In this paper, biohythane was produced through the AD process from pineapple peel waste substrate using purely cultured Methanosarcina mazei with the enhancement of palm oil mill effluent (POME) sludge as the inoculum. This study focuses on the effects of the lignocellulosic pre‐treatment method, the addition of POME sludge into M. mazei culture medium as inoculum, and various operational conditions (food to microorganisms (F/M) ratios, temperature, pH) on gas production performances. The experimental results indicate that these parameters influenced the efficiency of biohythane production by producing the peak maximum biohythane production rate values (HPRmax) and (MPRmax), H2:CH4 = 1.93:0.67 L/L‐d, and biohythane yield (HY) and (MY), H2:CH4 = 1.18:0.55 mL/L‐substrate. This study demonstrates that biohythane gas (H2 + CH4 + CO2) production from pineapple waste can be accelerated by M. mazei only with the enhancement of POME sludge through single‐stage AD system under mesophilic batch process conditions.

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Section: Resultsmentioning

confidence: 99%

Biohythane production from pineapple peel using Methanosarcina mazei enhanced with palm oil mill effluent (POME) sludge in single‐stage anaerobic digestion

Kopli,

Hassim,

Asli

et al. 2023

Environmental Quality Mgmt

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“…There are several methods available to deal with AN, including membrane separation [ 10 ], ammonia stripping [ 11 ], trace elements [ 12 , 13 ] or biochar [ 14 ] addition, and the use of zeolite as an adsorption agent [ 15 ], among others. Zeolite is a crystalline mineral that is efficient in ion exchange, making it suitable for removing ammonium and other cations [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Biodegradability of Chicken Manure via the Addition of Zeolite in a Two-Stage Dry Anaerobic Digestion Configuration

Kalogiannis,

Vasiliadou,

Tsiamis

et al. 2024

Molecules

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Leach bed reactors (LBRs) are dry anaerobic systems that can handle feedstocks with high solid content, like chicken manure, with minimal water addition. In this study, the chicken manure was mixed with zeolite, a novel addition, and packed in the LBR to improve biogas production. The resulting leachate was then processed in a continuous stirred tank reactor (CSTR), where most of the methane was produced. The supernatant of the CSTR was returned to the LBR. The batch mode operation of the LBR led to a varying methane production rate (MPR) with a peak in the beginning of each batch cycle when the leachate was rich in organic matter. Comparing the MPR in both systems, the peaks in the zeolite system were higher and more acute than in the control system, which was under stress, as indicated by the acetate accumulation at 2328 mg L−1. Moreover, the presence of zeolite in the LBR played a crucial role, increasing the overall methane yield from 0.142 (control experiment) to 0.171 NL CH4 per g of volatile solids of chicken manure entering the system at a solid retention time of 14 d. Zeolite also improved the stability of the system. The ammonia concentration increased gradually due to the little water entering the system and reached 3220 mg L−1 (control system) and 2730 mg L−1 (zeolite system) at the end of the experiment. It seems that zeolite favored the accumulation of the ammonia at a lower rate (14.0 mg L−1 d−1) compared to the control experiment (17.3 mg L−1 d−1). The microbial analysis of the CSTR fed on the leachate from the LBR amended with zeolite showed a higher relative abundance of Methanosaeta (83.6%) compared to the control experiment (69.1%). Both CSTRs established significantly different bacterial profiles from the inoculum after 120 days of operation (p < 0.05). Regarding the archaeal communities, there were no significant statistical differences between the CSTRs and the inoculum (p > 0.05).

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Mechanistic insight into assimilation capture: Implication for high-efficiency nitrogen removal from mature landfill leachate

Lin,

Xu,

Xiong

et al. 2024

Chemical Engineering Journal

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Novel approach to ammonia recovery from anaerobic digestion via side-stream stripping at multiple pH levels

Cited by 6 publications

References 37 publications

Biohythane production from pineapple peel using Methanosarcina mazei enhanced with palm oil mill effluent (POME) sludge in single‐stage anaerobic digestion

Biohythane production from pineapple peel using Methanosarcina mazei enhanced with palm oil mill effluent (POME) sludge in single‐stage anaerobic digestion

Enhancement of Biodegradability of Chicken Manure via the Addition of Zeolite in a Two-Stage Dry Anaerobic Digestion Configuration

Mechanistic insight into assimilation capture: Implication for high-efficiency nitrogen removal from mature landfill leachate

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