Methanogenic activity optimization using the response surface methodology, during the anaerobic co-digestion of agriculture and industrial wastes. Microbial community diversity

Hernández, Janet Jiménez; Puebla, Yans Guardia; Romero, Osvaldo Romero; Cisneros-Ortiz, M. E.; Guerra, Gilda; Morgan-Sagastume, Juan Manuel; Noyola, A.

doi:10.1016/j.biombioe.2014.10.023

Cited by 45 publications

(25 citation statements)

References 47 publications

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“…This statistical technique is a useful tool for optimization of AD when the response (increased methane production volume or content) may be influenced by several variables. Previous research utilizing RSM includes parameters such as ratios of co-digestion feedstocks, change in volatile solid concentrations or change in specific influent concentrations such as ammonium or alkalinity [25][26][27]42]. The RSM results indicated that the 2nd or 3rd order equations did not fit well with the experimental data because of the limits of response surface methodology as described in different applications.…”

Section: Resultsmentioning

confidence: 93%

“…In general, the major phyla of bacteria found in WWTP sludge were Firmicutes, Bacteroidetes, Proteobacteria and Spirochaetes and the major archaea were Methanosarcina, Methanosaeta and Methanoculleus [27,[34][35][36][37][38]. Bacterial profiles can exhibit very low variation within replicates and low variation in time [34] leading to low variations between experimental conditions.…”

Section: Resultsmentioning

confidence: 98%

“…First-order reaction kinetics are often used to describe complex biological reactions in batch AD systems [22][23][24] while response surface methodology (RSM) has been applied for evaluation and optimization of multiple variables affecting the studied parameters. Previous studies have applied RSM for optimization of parameters during various types co-digestion [23,[25][26][27].…”

Section: Introductionmentioning

confidence: 99%

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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: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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“…RSM has been widely used in wastewater treatment, since it enables us to better understand a process in terms of the interactions among the parameters that need to be optimized. Also RSM has been used in anaerobic treatment lately [17][18][19][20][21]].…”

Section: Introductionmentioning

confidence: 99%

Optimization of key factors affecting biogas production from synthetic wastewater by anaerobic granular sludge

Yang

Zhang

Xian

2016

Env Prog and Sustain Energy

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Factors affecting biogas production from synthetic wastewater in upflow anaerobic sludge blanket (UASB) reactor by anaerobic granular sludge were optimized using Response Surface Methodology (RSM) with Box‐Behnken Design. COD, NH4+‐N and sulphate were investigated as the experimental parameters. The experiments were conducted in 500 mL serum bottles with a working volume of 300 mL. The optimum conditions were determined as COD of 5610 mg L−1, NH4+‐N of 100 mg L−1 and sulphate of 1830 mg L−1 according to the experimental design. Under the optimal conditions, a maximum biogas yield of 604.05 mL, COD removal of 95.87%, NH4+‐N removal of 42.94% and sulphate removal of 80.29% were obtained. COD and sulphate showed the greatest individual and interactive effects on biogas yield (P < 0.05). COD had an individual effect on biogas yield (P < 0.0001) and NH4+‐N also had an individual effect on COD removal (P < 0.0001). The confirmation experiments conducted under the optimal conditions resulted in a biogas yield of 589.75 mL, COD removal of 94.09%, NH4+‐N removal of 39.31% and sulphate removal of 74.37%. The differences between predicted values and experimental results were satisfactory. The model had practical directive significance for optimizing key factors affecting biogas production from synthetic wastewater by anaerobic granular sludge. Optimizing COD, NH4+‐N, and sulphate can improve biogas production. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 11–20, 2017

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“…Other inhibitory substances to AD of FW include volatile fatty acids and hydrogen sulfide [7]. Significant interactions among various feedstocks can affect microbial community diversity and methanogenic activity [41]. These challenges can lead to drawbacks such as lower methane yield and longer digestion time, hence larger digester installations.…”

Section: Organic Waste Characteristicsmentioning

confidence: 99%

Current State of Anaerobic Digestion of Organic Wastes in North America

Linville

Shen

et al. 2015

Curr Sustainable Renewable Energy Rep

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With the large volumes of organic waste produced in the USA each year (78.7 million tons of organic municipal solid waste, 335 million tons of animal manure, and 130 million tons of biosolids), there is potential to develop a viable biogas industry via anaerobic digestion (AD) that can boost the economy and provide a reliable, distributed source of renewable energy while reducing greenhouse gas emissions. AD is a better practice for organic waste management than the current practice of landfilling or incineration. Since 2013, US public policy and market conditions have been looking increasingly favorable for the development of AD of organic waste. Some of the main barriers to commercialization of an AD industry include highly variable organic waste characteristics and volume, process economics, biogas cleanup requirements, policy, and public acceptance. This paper discusses new technologies to overcome these barriers with case studies from successful companies in the USA.

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Methanogenic activity optimization using the response surface methodology, during the anaerobic co-digestion of agriculture and industrial wastes. Microbial community diversity

Cited by 45 publications

References 47 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

Optimization of key factors affecting biogas production from synthetic wastewater by anaerobic granular sludge

Current State of Anaerobic Digestion of Organic Wastes in North America

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