Utilization of vegetable dumplings waste from industrial production by anaerobic digestion

Pilarska, Agnieszka A.; Pilarski, Krzysztof; Ryniecki, A.; Tomaszyk, Kamila; Dach, Jacek; Wolna-Maruwka, Agnieszka

doi:10.1515/intag-2016-0033

Cited by 21 publications

(27 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The content of substrates and inoculum in the batches followed the standard [30] with guidelines for the digestion of organic materials. As recommended, the content of dry organic matter in the inoculum ranged from 1.5% to 2%, whereas the content of dry matter in the batch did not exceed 10% [31]. Table 2 shows the composition of the batches and their most important physicochemical parameters.…”

Section: Sample Preparationmentioning

confidence: 92%

See 1 more Smart Citation

The Use of Lignin as a Microbial Carrier in the Co-Digestion of Cheese and Wafer Waste

et al. 2019

Self Cite

View full text Add to dashboard Cite

The aim of the article was to present the effects of lignin grafted with polyvinylpyrrolidone (PVP) as a microbial carrier in anaerobic co-digestion (AcoD) of cheese (CE) and wafer waste (WF). Individual samples of waste cheese and wafers were also tested. The PVP modifier was used to improve the adhesive properties of the carrier surface. Lignin is a natural biopolymer which exhibits all the properties of a good carrier, including nontoxicity, biocompatibility, porosity, and thermal stability. Moreover, the analysis of the zeta potential of lignin and lignin combined with PVP showed their high electrokinetic stability within a wide pH range, that is, 4-11. The AcoD process was conducted under mesophilic conditions in a laboratory by means of anaerobic batch reactors. Monitoring with two standard parameters: pH and the VFA/TA ratio (volatile fatty acids-to-total alkalinity ratio) proved that the process was stable in all the samples tested. The high share of N-NH 4 + in TKN (total Kjeldahl nitrogen), which exceeded 90% for WF+CE and CE at the last phases of the process, proved the effective conversion of nitrogen forms. The microbiological analyses showed that eubacteria proliferated intensively and the dehydrogenase activity increased in the samples containing the carrier, especially in the system with two co-substrates (WF+CE/lignin) and in the waste cheese sample (CE/lignin). The biogas production increased from 1102.00 m 3 Mg −1 VS (volatile solids) to 1257.38 m 3 Mg −1 VS in the WF+CE/lignin sample, and from 881.26 m 3 Mg −1 VS to 989.65 m 3 Mg −1 VS in the CE/lignin sample. The research results showed that the cell immobilization on lignin had very positive effect on the anaerobic digestion process.

show abstract

Section: Sample Preparationmentioning

confidence: 92%

“…The volume of biogas produced was measured every 24 h. The quantitative composition of biogas was measured with Geotech GA5000 gas instrument [31].…”

Section: Qualitative and Quantitative Analysis Of Biogasmentioning

confidence: 99%

The Use of Lignin as a Microbial Carrier in the Co-Digestion of Cheese and Wafer Waste

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…According to literature reports, the AD process is most typically applied to food waste from restaurants [6][7], either individually or after mixing it with other substrates. Moreover, experiments are carried out with food waste arising in the food processing industry such as sugar beet pulp [8], molasses [9], cheese whey [10], fat [11], coffee waste [12], fruit and vegetable waste [13], and dumpling waste [14]. Those with the use of waste arising in confectionery production are carried only very rarely, even though the material -which is usually highly concentrated and rich in carbohydrates -is a promising substrate for the production of biogas, including methane.…”

Section: Introductionmentioning

confidence: 99%

“…Sewage sludge is one more example of organic waste, used as a substrate for making biogas [7,8,[10][11][12][13][14][15][17][18][19][20]. Among biological methods, which include also aerobic digestion and composting, anaerobic digestion is perceived to be the most environmentally friendly and cost-effective method for neutralization and disposal of sewage sludge [1].…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Co-Digestion of Waste Wafers from Confectionery Production with Sewage Sludge

Pilarska

2018

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

Food waste (FW) is generated in high volumes and is a serious threat to the environment if utilized improperly or left without control. Conventional methods of FW disposal include combustion, landfi lling, aerobic composting, partial recycling, and other ones. Anaerobic digestion (AD) is the most environmentally friendly of all the methods as it is benefi cial to the populace, and food waste is a suitable material for biogas production.Confectionery waste has rarely been utilized by anaerobic digestion (AD) so far. In this paper, the use of waste wafers (WF) in co-digestion with sewage sludge (SS) is proposed for the fi rst time. Annual volumes of production of WW and SS are expressed in hundreds and thousands of tons, respectively. The materials are generated in high amounts and on an ongoing basis, which is a very important factor regarding potential biogas plant investment projects. The objective of this paper was to analyze the AD process of the test substrates in terms of process stability and biogas capacity. The studies have shown that both the waste wafers as the individual material and with sewage sludge (as the co-substrate) are suitable feedstocks for biogas production. The experiments were carried out for the individual material and for a system with a cosubstrate in the form of raw sewage sludge (SS). In both cases, a digested sewage sludge was used as the inoculum. The studies were performed in a laboratory scale using anaerobic batch reactors under controlled (mesophilic) temperature and pH conditions. The highest yields of biogas and methane were obtained for waste wafers (980. ), than for the wafers (WF). The differences in biogas production for the samples were primarily connected with the substrates' composition, including with the content of readily degradable organic compounds and C/N ratio. The combination of waste wafers with raw sewage sludge has appeared to be benefi cial, as evidenced by the results of microbiological and biochemical analyses. The sample WF_SS was

show abstract

“…The anaerobic digestion process was conducted in a periodic mode of operation of digesters, under mesophilic conditions. The authors of this study presented a detailed diagram and described the construction and operation of biodigesters in their previous publications [32][33][34].…”

Section: Laboratory-scale Biogas Productionmentioning

confidence: 99%

The Efficiency of Industrial and Laboratory Anaerobic Digesters of Organic Substrates: The Use of the Biochemical Methane Potential Correction Coefficient

et al. 2020

Self Cite

View full text Add to dashboard Cite

This study is an elaboration on the conference article written by the same authors, which presented the results of laboratory tests on the biogas efficiency of the following substrates: maize silage (MS), pig manure (PM), potato waste (PW), and sugar beet pulp (SB). This article presents methane yields from the same substrates, but also on a technical scale. Apart from that, it presents an original methodology of defining the Biochemical Methane Potential Correction Coefficient (BMPCC) based on the calculation of biomass conversion on an industrial scale and on a laboratory scale. The BMPCC was introduced as a tool to enable uncomplicated verification of the operation of a biogas plant to increase its efficiency and prevent undesirable losses. The estimated BMPCC values showed that the volume of methane produced in the laboratory was overestimated in comparison to the amount of methane obtained under technical conditions. There were differences observed for each substrate. They ranged from 4.7% to 17.19% for MS, from 1.14% to 23.58% for PM, from 9.5% to 13.69% for PW, and from 9.06% to 14.31% for SB. The BMPCC enables estimation of biomass under fermentation on an industrial scale, as compared with laboratory conditions.

show abstract

Utilization of vegetable dumplings waste from industrial production by anaerobic digestion

Cited by 21 publications

References 36 publications

The Use of Lignin as a Microbial Carrier in the Co-Digestion of Cheese and Wafer Waste

The Use of Lignin as a Microbial Carrier in the Co-Digestion of Cheese and Wafer Waste

Anaerobic Co-Digestion of Waste Wafers from Confectionery Production with Sewage Sludge

The Efficiency of Industrial and Laboratory Anaerobic Digesters of Organic Substrates: The Use of the Biochemical Methane Potential Correction Coefficient

Contact Info

Product

Resources

About