Anaerobic digestate water for Chlorella pyrenoidosa cultivation and employed as co-substrate with cow dung and chicken manure for methane and hydrogen production: A closed loop approach

Malolan, Rajagopal; Jayaraman, Ramesh Sai; Adithya, Srikanth; Arun, Jayaseelan; Gopinath, Kannappan Panchamoorthy; SundarRajan, PanneerSelvam; Nasif, Omaima; Kim, Woong; Govarthanan, Muthusamy

doi:10.1016/j.chemosphere.2020.128963

Cited by 29 publications

(8 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Li et al [44] emphasised the substantial influence of substrate properties on biochemical methane potential. In the investigation conducted by Malolan et al [45], the authors found that cattle manure had a volatile solids content of 82.23%, while poultry manure had a volatile solids content of 86.18%. These findings are consistent with the results of the current study.…”

Section: Substrate Characteristicsmentioning

confidence: 99%

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

Sihlangu,

Luseba,

Regnier

et al. 2024

Sustainability

View full text Add to dashboard Cite

The agricultural industry produces a substantial quantity of organic waste, and finding a suitable method for disposing of this highly biodegradable solid waste is a difficult task. The utilisation of anaerobic digestion for agricultural waste is a viable technological solution for both renewable energy production (biogas) and waste treatment. The primary objective of the study was to assess the composition of biogas, namely the percentages of methane, carbon dioxide, ammonia, and hydrogen sulphide. Additionally, the study aimed to quantify the amount of biogas produced and determine the methane yield (measured in NmL/g VS) from different agricultural substrates. The biochemical methane potential (BMP) measurements were conducted in triplicate using the BPC Instruments AMPTS II instrument. The substrates utilised in the investigation were chosen based on their accessibility. The substrates used in this study comprise cattle manure, chicken manure, pig manure, tomato plants, tomatoes, cabbage, mixed fruits, mixed vegetables, dog food, and a co-digestion of mixed vegetables, fruits, and dog food (MVMFDF). Prior to the cleaning process, the makeup of the biogas was assessed using the BIOGAS 5000, a Geotech Analyser. The AMPTS II flow cell automatically monitored and recorded the volume of bio-methane produced after the cleaning stage. The data were examined using the Minitab-17 software. The co-digestion of mixed vegetables, mixed fruits, and dog food (MVMFDF) resulted in the highest methane level of 77.4%, followed by mixed fruits at 76.6%, pig manure at 72.57%, and mixed vegetables at 70.1%. The chicken manure exhibited the greatest levels of ammonia (98.0 ppm) and hydrogen sulphide (589 ppm). Chicken manure had the highest hydrogen sulphide level, followed by pig manure (540 ppm), tomato plants (485 ppm), mixed fruits (250 ppm), and MVMFDF (208 ppm). Ultimately, the makeup of biogas is greatly affected by the unique qualities of each substrate. Substrates containing elevated quantities of hydrogen sulphide, such as chicken manure, require the process of biogas scrubbing. This is because they contain substantial amounts of ammonia and hydrogen sulphide, which can cause corrosion to the equipment in biogas plants. This emphasises the crucial need to meticulously choose substrates, with a specific focus on their organic composition and their capacity to generate elevated methane levels while minimising contaminants. Substrates with a high organic content, such as agricultural waste, are optimal for maximising the production of methane. Furthermore, the implementation of biogas scrubbing procedures is essential for efficiently decreasing carbon dioxide and hydrogen sulphide levels in biogas. By considering and tackling these problems, the effectiveness of biogas generation can be enhanced and its ecological consequences alleviated. This strategy facilitates the advancement of biogas as a sustainable energy source, hence contributing to the attainment of sustainable development goals (SDGs).

show abstract

Section: Substrate Characteristicsmentioning

confidence: 99%

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

Sihlangu,

Luseba,

Regnier

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…On the other hand, iron doping displayed a plasmonic resonance effect and consequently a strong absorption of visible light was noted. 122 In a related study, Lovisa et al , 123 reported the manufacture of zinc-doped Bi 2 WO 6 . In this study they demonstrated that increasing the Zn 2+ concentration promoted the inhibition of photocatalytic characteristics through the occurrence of oxygen vacancies that functioned as a charge recombination center.…”

Section: Photocatalytic Propertiesmentioning

confidence: 99%

“…A comparative study was carried out by Zhu et al 122 in which they compared the photocatalytic performances of Bi 2 WO 6 doped with various metals ions such as (Cu 2+ , Zn 2+ , Mg 2+ and Fe 3+ ). They have found that Bi 2 WO 6 doped with metal ions greatly enhances the photodecomposition of ciprofloxacin (CIP) and norfloxacin (NOR) antibiotics, this improvement was explained by the increase of the specific surface area after doping and the reduction of the gap energies (novel impurity levels entered between the CB and the VB of Bi 2 WO 6 ).…”

Section: Photocatalytic Propertiesmentioning

confidence: 99%

Bismuth tungstate Bi₂WO₆: a review on structural, photophysical and photocatalytic properties

et al. 2023

View full text Add to dashboard Cite

show abstract

“…As cattle farming and cattle-feeding operations increase, so does the yield of the hard-to-handle waste CD. Since these waste emissions demonstrate a high risk of pathogen transmission, their disposal is considered a major challenge for the cattle and livestock industry [ 14 , 15 ]. In the past decades, reports on comprehensive utilization of CD have emerged one after another.…”

Section: Introductionmentioning

confidence: 99%

Cow Dung-Based Biochar Materials Prepared via Mixed Base and Its Application in the Removal of Organic Pollutants

Chen

Gao

Chen

et al. 2022

IJMS

View full text Add to dashboard Cite

Cow dung (CD) is a waste product of livestock production. Improper disposal of a large amount of CD will cause environmental pollution. In this work, three biochar materials based on CD (BMCD) were prepared by using three types of base, including KOH, NaOH, and mixed base (MB, a mixture of equal mass NaOH and KOH) as activators to investigate the different physicochemical properties of BMCDs (BMCD-K, BMCD-Na, and BMCD-MB). The objective was to verify the effectiveness of MB activation in the preparation of biochar materials. The results show that MB has an effect on the structural characteristics of BMCDs. In particular, the surface area and total pore volume, the specific surface area, and the total pore volume of BMCD-MB (4081.1 m2 g−1 and 3.0118 cm3 g−1) are significantly larger than those of BMCD-K (1784.6 m2 g−1 and 1.1142 cm3 g−1) and BMCD-Na (1446.1 m2 g−1 and 1.0788 cm3 g−1). While synthetic dye rhodamine B (RhB) and antibiotic tetracycline hydrochloride (TH) were selected as organic pollutant models to explore the adsorption performances, the maximum adsorption capacities of BMCD-K, BMCD-NA and BMCD-MB were 951, 770, and 1241 mg g−1 for RhB, 975, 1051, and 1105 mg g−1 for TH, respectively, which were higher than those of most adsorbents. This study demonstrated that MB can be used as an effective activator for the preparation of biochar materials with enhanced performance.

show abstract

Anaerobic digestate water for Chlorella pyrenoidosa cultivation and employed as co-substrate with cow dung and chicken manure for methane and hydrogen production: A closed loop approach

Cited by 29 publications

References 41 publications

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

Bismuth tungstate Bi₂WO₆: a review on structural, photophysical and photocatalytic properties

Cow Dung-Based Biochar Materials Prepared via Mixed Base and Its Application in the Removal of Organic Pollutants

Contact Info

Product

Resources

About

Anaerobic digestate water for Chlorella pyrenoidosa cultivation and employed as co-substrate with cow dung and chicken manure for methane and hydrogen production: A closed loop approach

Cited by 29 publications

References 41 publications

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

Bismuth tungstate Bi2WO6: a review on structural, photophysical and photocatalytic properties

Cow Dung-Based Biochar Materials Prepared via Mixed Base and Its Application in the Removal of Organic Pollutants

Contact Info

Product

Resources

About

Bismuth tungstate Bi₂WO₆: a review on structural, photophysical and photocatalytic properties