Enhanced anaerobic digestion of food waste by trace metal elements supplementation and reduced metals dosage by green chelating agent [S, S]-EDDS via improving metals bioavailability

Zhang, Wanli; Zhang, Lei; Li, Aimin

doi:10.1016/j.watres.2015.07.010

Cited by 176 publications

(86 citation statements)

References 33 publications

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“…Olivine addition also provides Fe to support metabolic activities of the methanogens, which may have further enhanced the synergistic effect of Ni and Co [5]. It should be noted that Fe concentration in the digesters increased by approximately 140 mg/L after addition of olivine (Table 3) and was the same in all olivine supplemented digesters.…”

Section: Resultsmentioning

confidence: 93%

“…The increased methane yield for 5O+1.5TE indicates that the combined effect of Ni/Co supplement and Fe addition from the olivine has a positive effect on the methanogen activity. Similarly, Zhang et al (2015) reported that addition of trace elements in the combination of Fe (100 mg/L) + Co (1 mg/L) + Ni (5 mg/L) increased the methane yield from AD of food waste by 25% [5].…”

Section: Resultsmentioning

confidence: 95%

“…Addition of Ni and Co also improves process stability and efficiency, and substrate utilization, hence enables higher organic loading rates (ORLs) [2,4]. A study on the feasibility of iron-rich activated sludge as a stabilizing agent for AD of food waste confirmed the positive effects of the Fe addition on the stability of the AD process [5]. Other metals, such as Se, Mo, and W, which may increase AD performance are required 10-times lower concentration than Fe, Ni, and Co [7].…”

Section: Introductionmentioning

confidence: 98%

“…Trace metals, such as cobalt (Co), nickel (Ni), selenium (Se), iron (Fe), molybdenum (Mo) and tungsten (W) are vital constituents of cofactors and enzymes in biogenic methane production and their addition to AD has been shown to stimulate and stabilize biogas process performance [2][3][4][5]. Combinations of trace elements can exhibit significant synergistic effects [5]. Increased concentrations of Ni and Co can accelerate initial exponential rates, increase total volume of methane produced, and increase cell densities of methanogens [3,6].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Impact of trace element additives on anaerobic digestion of sewage sludge with in-situ carbon dioxide sequestration

Linville

Shen

Schoene

et al. 2016

Process Biochemistry

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Please cite this article as: Linville Jessica L, Shen Yanwen, Schoene Robin P, Nguyen Maximillian, Urgun-Demirtas Meltem, Snyder Seth W.Impact of trace element additives on anaerobic digestion of sewage sludge with in-situ carbon dioxide sequestration.Process Biochemistry http://dx. 2 Graphical abstract Highlights: Evaluated trace element addition during anaerobic digestion of sewage sludge  Olivine was used for in-situ CO2 sequestration to produce renewable methane  Olivine and 1.5 mg/L Ni and Co addition increased the methanation kinetics by 6-56%  Lab bench tests achieved up to 56% increase in methane yield  Simultaneously, lab bench tests resulted in up to 17.3% increase in methane volume 3 Abstract Anaerobic digestion (AD) of sludge at wastewater treatment plants can benefit from addition of essential trace metals such as iron, nickel and cobalt to increase biogas production for utilization in combined heat and power systems, fed into natural gas pipelines or as a vehicle fuel. This study evaluated the impact and benefits of Ni/Co and olivine addition to the digester at mesophilic temperatures. These additions supplement previously reported research in which iron-rich olivine (MgSiO4) was added to sequester CO2 in-situ during batch AD of sludge. Trace element addition has been shown to stimulate and stabilize biogas production and have a synergistic effect on the mineral carbonation process. AD with 5% w/v olivine and 1.5 mg/L Ni/Co addition had a 17.3% increase in methane volume, a 6% increase in initial exponential methane production rate and a 56% increase in methane yield (mL CH4/g CODdegraded) compared to the control due to synergistic trace element and olivine addition while maintaining 17.7% CO2 sequestration from olivine addition. Both first-order kinetic modeling and response surface methodology modeling confirmed the combined benefit of the trace elements and olivine addition. These results were significantly higher than previously reported results with olivine addition alone [1].

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of trace element additives on anaerobic digestion of sewage sludge with in-situ carbon dioxide sequestration

Linville

Shen

Schoene

et al. 2016

Process Biochemistry

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show abstract

“…Trace metal elements of Al, Zn, Cu, Mn, and Fe were also detected. Metal concentration is a vital parameter in methane formation as bioavailable trace metals could stimulate the conversion of pollutants into methane and improve the tolerance of microorganisms to toxic substances [18][19]. But metal concentrations should not exceed the allowable standards [20][21].…”

Section: Characteristics Of Substratesmentioning

confidence: 99%

Characteristics of Kitchen Waste and the Formation of Floating Brown Particles (FBP) in the Anaerobic Digestion Process

Jiang

Liu

et al. 2018

Pol. J. Environ. Stud.

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Five types of kitchen waste (KW) from China -including hop pot (HP), fast food (FF), Hebei cuisine (HC), university canteen (UC), and other mixed KW (Other) -were investigated as feedstock for potential biogas and methane production. The biodegradability of KW was measured using batch anaerobic digestion (AD) tests and feedstock at an inoculum ratio (F/I) of 0.5. Gompertz and Cone models were used to determine the kinetic parameters of KW degradation, biogas, and methane production. Results showed that HP had the highest lag phase time of 5.46 days. Methane production varies with different sources of KW. HP had the highest methane yield of 363.9 mL/g-VS added as compared to a sample of FF (334.8 mL/g-VS added ), other ( 278.5 mL/g-VS added ), UC (239.2 mL/g-VS added ), and HC (236.0 mL/g-VS added ). The biodegradability of KW ranged from 39.5% to 50.4%. During the AD process a certain amount of fl oating brown particles (FBP) were formed, which may be the main inhibiting factor of methane production. Analysis of 13 C NMR and FTIR revealed that the main component of FBP was calcium stearate. The formation mechanism of calcium stearate may contribute to the relatively high lipid content (18.6% to 30.9%) of the KW sample, which subsequently resulted in over-accumulation of long-chain fatty acids (LCFAs) and reaction with Ca . Using lipid-rich substrates as feedstock may be an effi cient approach to adding Ca 2+ artifi cially for reducing the inhibition of LCFAs.

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The use of sludge as a micronutrient for the improvement of biogas production from seaweed: the integration of two sources of environmental concern to bring new opportunities

Rezaei

Ebrahimi-Nik

Tedesco

et al. 2021

Biofuels Bioprod Bioref

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Large quantities of seaweed in marine environments and coastal areas can cause serious hygienic and environmental problems. Anaerobic digestion (AD) could provide a solution and could also be useful for the production of bioenergy and fertilizer. However, the AD of algae biomass has some limitations and further work is required on the process. To increase the efficiency of the process, batches of 350 mL feedstock containing seaweed biomass (Sargassum sp.), inoculum, and different dosages of sludge from drinking water treatment (DWTS) as a micronutrient source to improve biogas production were digested in a 500 mL glass reactor and under mesophilic conditions, leading to significantly enhanced methane production. The highest methane yield (199 NmL g −1 VS) was observed when 6 mg L −1 DWTS was added, which showed a 30% improvement compared with the control digester and accounted for a 249.4 kWh increase in net energy per ton. The biodegradability index also increased by 10% compared with the control after the addition of DWTS.

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Enhanced anaerobic digestion of food waste by trace metal elements supplementation and reduced metals dosage by green chelating agent [S, S]-EDDS via improving metals bioavailability

Cited by 176 publications

References 33 publications

Impact of trace element additives on anaerobic digestion of sewage sludge with in-situ carbon dioxide sequestration

Impact of trace element additives on anaerobic digestion of sewage sludge with in-situ carbon dioxide sequestration

Characteristics of Kitchen Waste and the Formation of Floating Brown Particles (FBP) in the Anaerobic Digestion Process

The use of sludge as a micronutrient for the improvement of biogas production from seaweed: the integration of two sources of environmental concern to bring new opportunities

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