Development of a bio-zeolite fixed-bed bioreactor for mitigating ammonia inhibition of anaerobic digestion with extremely high ammonium concentration livestock waste

Zheng, Hanying; Li, Dawei; Stanislaus, Mishma Silvia; Zhang, Nan; Zhu, Qi; Hu, Xiaohong; Yang, Yingnan

doi:10.1016/j.cej.2015.06.024

Cited by 59 publications

(12 citation statements)

References 31 publications

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“…Higher production of biogas was obtained even at ammonium nitrogen concentration in manure equal to 7500 mg N-NH 4 + /dm 3 , while strongly toxic effect of this compound on anaerobic processes is usually observed at concentration in the range 1500÷3000 mg N-NH 4 + · L -1 [13]. The results obtained by Zheng et al [12] can be explained by synergic effect of ammonium nitrogen sorption on zeolite and high biomass of methanogens, which was cultivated on the surface of the silicates. Similarly during methane digestion of manure and straw statistically important increase of biogas production was observed when zeolites were introduced into the bioreactor [14].…”

Section: Introductionsupporting

confidence: 71%

“…Similar effect was observed during digestion of cattle manure [11] and swine manure [12]. According to Zheng et al [12] in anaerobic bed filled with zeolite also higher volumes of biogas were generated compared to control reactor. Higher production of biogas was obtained even at ammonium nitrogen concentration in manure equal to 7500 mg N-NH 4 + /dm 3 , while strongly toxic effect of this compound on anaerobic processes is usually observed at concentration in the range 1500÷3000 mg N-NH 4 + · L -1 [13].…”

Section: Introductionsupporting

confidence: 59%

“…When liquid waste was treated zeolite addition allowed for minimizing toxic effect of ammonia [9]. Similar effect was observed during digestion of cattle manure [11] and swine manure [12]. According to Zheng et al [12] in anaerobic bed filled with zeolite also higher volumes of biogas were generated compared to control reactor.…”

Section: Introductionmentioning

confidence: 58%

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Effect of Silicates on Methane Digestion of Sewage Sludge

Wiśniowska

Włodarczyk‐Makuła

2016

Eng. Prot. Environ.

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Wpływ krzemianów na proces fermentacji metanowej osadówEffect of clinoptylolite and bentonite admixture on balance of ammonium nitrogen and phosphates in reject water during methane digestion of excess sludge was evaluated. Concentration of ammonium nitrogen and phosphates in reject water separated from the sludge with silicates amendment and without it (control sludge) was analysed to compare the effectiveness of biogenic compounds removal. Simultaneously effect of silicates addition on biogas production and fractions of phosphorus was analysed. Doses of silicates at level no higher than used in wastewater treatment by activated sludge process were added to methane digestion chamber. The doses were equal to 0.5, 1.0 and 2.0 g · L -1 . Research work was conducted under laboratory conditions for 21 days. Admixture of silicates did not decrease concentration of ammonium nitrogen in reject water but reduced phosphates content in this medium compared to control sample. Under experimental conditions clinoptylolite was more effective in biogens removal than bentonite. Increase in biogas production was especially visible during days from 1 to 16; after that time it decreased in samples with silicates more rapidly than in control reactor. However silicates admixture increased total biogas production by maximum 17% compared to control sample. Clinoptylolite and bentonite admixture increased percent shares of phosphorus associated with carbonates in sewage sludge. Increase in II-nd fraction share was proportional to the dose of silicates. In control sample the dominant fraction of phosphorus in sewage sludge was the III-rd; in samples with silicate admixture percent shares of II-nd nad III-rd fractions were comparable. The conclusion from the research work is as follows: at doses used in wastewater treatment technology to support activated sludge process silicates do not affect the composition of reject water significantly. However addition of natural sorbents positively affected anaerobic degradation of sewage sludge.

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Section: Introductionsupporting

confidence: 71%

Section: Introductionsupporting

confidence: 59%

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Effect of Silicates on Methane Digestion of Sewage Sludge

Wiśniowska

Włodarczyk‐Makuła

2016

Eng. Prot. Environ.

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“…Although the density of anaerobes is not predominant but multi morphotypes like rod-shaped and coccus shaped can be identified and can be correspond to genus Methanobacterium and Methanosarcina respectively. The presence of diverse morphologies of methanogenic bacteria also plays an important role in the anaerobic digestion performance [47]. Furthermore, methanogens from Methanosarcina genera are considered as main contributor to methane production as they use acetate as a sole substrate [48].…”

Section: Microscopic Observationsmentioning

confidence: 99%

Study on Natural Organic Materials as Biofilm Carriers for the Optimization of Anaerobic Digestion

Zainab

Meraj

Liaquat

2019

Waste Biomass Valor

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Increased Methane productivity and organic matter removal efficiency in anaerobic digestion can be achieved by retaining microbial consortia inside the reactors using biofilm carriers. In this study, the performance of anaerobic reactors was assessed using natural organic materials i.e. luffa sponge, coconut husk fiber and wood chips as biofilm carriers. Anaerobic batch mode bioreactors comprising of carrier materials for biofilms and control bioreactor were run in parallel at mesophilic temperature (35 °C). Methane content, biogas yield, pH, volatile solids, chemical oxygen demand, VFA/alkalinity ratio and total organic carbon was measured before and after the experiment. Scanning electron microscopy was used to identify the morphology of the methanogenic bacteria present in the biofilms. Maximum methane concentration and volatile solids removal efficiency was obtained from luffa sponge reactor i.e. 77.7% and 82.6% respectively. Furthermore, determination of biokinetic parameters lag phase (ʎ) and production rate (R m ) was also performed using three kinetic models i.e. Modified Gompertz Model, Logistics growth model and Transference function model. Among the kinetic models, logistics growth model and modified Gompertz model provided the best fit with the experimental data providing the R 2 of 0.989 and 0.975 respectively.

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“…Previous research explored the properties of various supporting media, such as polyvinyl alcohol gel beads, ceramic, polyethylene, clay, and activated carbon [12][13][14]. However, recent studies showed that zeolite had good potential if applied to the fixed-bed anaerobic bioreactor system [15].…”

Section: ■ Introductionmentioning

confidence: 99%

The Performance of a Fixed-Bed Anaerobic Bioreactor Using Sulfate-Reducing Bacterial Consortium from Sikidang Crater Sediments

2019

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This research explored the performance of a fixed-bed anaerobic bioreactor system (FBR) using sulfate-reducing bacteria (SRB) from the sediment of Sikidang Crater in Indonesia. Indonesian natural zeolite was used as an inert medium in this bioreactor system. This bioreactor performance was analyzed based on its sulfate reduction efficiency, Cu removal, pH profile, SRB growth, and the changes in mineral composition of the zeolite surface. Based on a batch experiment, the FBR system was operated at 30 °C with a hydraulic retention time (HRT) of 7 days using a zeolite dose of 100 g/L. After its operation, a large amount of SRB (up to 1.5 × 105 cells/mm2) was entrapped and present in the zeolite. This bacterial consortium could reduce sulfate and copper by around 68% and 99.96%, respectively. In addition, the pH value of the bioreactor changed to neutral, which indicated a good performance of the operation. The result of the Energy-Dispersive X-ray (EDX) confirmed that copper removal was caused by the formation of copper-sulfide precipitation. Mapping also revealed that both copper and sulfur were precipitated at the same location.

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Development of a bio-zeolite fixed-bed bioreactor for mitigating ammonia inhibition of anaerobic digestion with extremely high ammonium concentration livestock waste

Cited by 59 publications

References 31 publications

Effect of Silicates on Methane Digestion of Sewage Sludge

Effect of Silicates on Methane Digestion of Sewage Sludge

Study on Natural Organic Materials as Biofilm Carriers for the Optimization of Anaerobic Digestion

The Performance of a Fixed-Bed Anaerobic Bioreactor Using Sulfate-Reducing Bacterial Consortium from Sikidang Crater Sediments

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