Effects of Mixing Ratio on Dewaterability of Digestate of Mesophilic Anaerobic Co-Digestion of Food Waste and Sludge

Wang, Tianfeng; Zhang, Xinyun; Zhou, Qi; Yang, Qi; Xu, Bingjie; Yang, Pinghua; Zhou, Tumu

doi:10.1007/s12649-017-9949-2

Cited by 15 publications

(7 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wang et al. investigated the correlation between CST and protein and polysaccharide content of the mixture . They noted that CST increased with an increase in activated sludge, and overall dewaterability improved under mesophilic anaerobic condition.…”

Section: Performance Assessment Of Flocculantsmentioning

confidence: 99%

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Vajihinejad

Gumfekar

Bazoubandi

et al. 2018

Macro Materials & Eng

142

108

View full text Add to dashboard Cite

Water soluble polymer flocculants are important constituents of solid–liquid separation units for the treatment of a variety of process‐affected effluents. The systematic development of a flocculant relies on a good understanding of flocculation process, polymer synthesis, polymer characterization, and, not the least, flocculation performance assessment as desired for a particular treatment process, all of which are essential to establish meaningful relationships between flocculant microstructure and flocculation efficiency. The aim of this article is to communicate the bigger picture of this research area to the readers. The recent advances in the application of bio/natural, synthetic, and stimuli‐responsive flocculants are reviewed. Then, the basic polymer reaction engineering tools to control the microstructure of flocculants are provided and the techniques for the quantification of flocculant microstructure are concisely discussed. This is followed by a review of the methods used for the characterization of particle‐polymer force measurement, and flocculation/dewatering assessment with attention to the characterization of aggregate structures.

show abstract

Section: Performance Assessment Of Flocculantsmentioning

confidence: 99%

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Vajihinejad

Gumfekar

Bazoubandi

et al. 2018

Macro Materials & Eng

142

108

View full text Add to dashboard Cite

show abstract

“…Characteristics of FFVW and cow dung: For the stable operation of AD and biogas yield required essential AD parameter must be with in optimum range for the AD process (Wang et al 2018). FFVW and cow dung are characterized before pretreatment process and on daily basis during experimentations as shown in the Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…The typical composition of FFVW used in this study are described in Table 1. The FFVW sample was brought from the IIT Roorkee, India, campus cafeteria and brought the composition as closest to the literatures (Yong et al 2015;Nanda et al 2016;Wang et al 2018) through content measurement. Initially, sample were sorted, shredded, homogenised to get ~ 5 mm particles size and after that sample was mixed with tap water to achieve desirable TS.…”

Section: Methodsmentioning

confidence: 99%

“…In which, hydrolysis is the rate-limiting step for biogas generation reaction because it has higher in uence on the degradation e ciency of the feedstock or waste materials (Razaghi et al 2016; Pham Van et al 2019). Mesophilic AD (30-50 0 C) has given preference over thermophilic AD (> 50 0 C) due to higher rate of organic waste degradation and methane production, while thermophilic AD has some operational disadvantages such as high operational cost, susceptibility to process parameter stability, high risk of inhibition due to sudden environmental changes and complex structural facilities (Wang et al 2018;Zhang et al 2019). Therefore, in practice mesophilic AD is preferential process over thermophilic AD for prolonged operation of AD.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effectiveness of the pretreatment methods on mesophilic anaerobic co-digestion of fruit, food and vegetable waste

Chaurasia

Siwach

Mondal

2021

Preprint

View full text Add to dashboard Cite

Pretreatment of the fruit, food and vegetable waste materials could enhance the biogas generation in a shorter time along with waste reduction. The aim of the present work was to assess the effectiveness of alkaline, hydrothermal, thermal and ultrasonication pretreatment of fruit, food, and vegetable waste with cow dung for the mesophilic anaerobic co-digestion. The mesophilic anaerobic co-digestion of fruit food and vegetable waste as single substrate with cow dung were performed in a laboratory scale 1L batch digester for 30 days at 40 ± 2 oC temperature. Obtained result show that pretreatment process has enhanced the biogas and biomethane production by 35 % and 44.4 % with 19.89 % TS and 17.30 % VS removal in case of ultrasonication pretreatment (100.45 ml biogas/gVS and 27.92 ml CH4/gVS,), while slight increase is found with thermal and hydrothermal pretreatment as compared to untreated FFVW. The biogas production is enhanced by 35%, 20.4%, 5%, 6% and biomethane production are enhanced by 44.4%, 22%, 11%, 9.8% in the case of ultrasonication, alkaline, thermal and hydrothermal pretreatment process, respectively. The stable mesophilic anaerobic co-digestion operation was achieved and impacts of the different pretreatment methods on the biogas yield and net energy recovery along with viability of anaerobic co-digestion have been explored.

show abstract

“…In general, in a sludge/food waste anaerobic co-digestion system, a higher proportion of sludge in the digester resulted in a higher pH [36]. This may be due to the increased proportion of sludge, which led to an increased buffering capacity of the system, so the pH-changing trend did not show an obvious deviation [37].…”

Section: Methodsmentioning

confidence: 99%

Effects of One-Step Abrupt Temperature Change on Anaerobic Co-Digestion of Kitchen Waste with Dewatered Sludge

Hu,

Zhou,

Zhu

et al. 2023

Fermentation

Self Cite

View full text Add to dashboard Cite

The operating temperature of anaerobic digesters should be adjusted to adapt to seasonal variations in environmental temperature and the composition of organic solid waste. This study investigated the effects of one-step abrupt temperature changes (from mesophilic to thermophilic temperature, M–T, and from thermophilic to mesophilic temperature, T–M) and the inoculation ratio on methane yield and microbial diversity during the anaerobic co-digestion of kitchen waste with dewatered sludge. The results showed that the cumulative methane yield (CMY) level resulting from thermophilic control and the M–T digesters was greater than that resulting from mesophilic control and the T–M digesters. The CMF of M–T digesters increased, whereas the CMY of T–M digesters gradually decreased with an increase in the inoculation ratio. The maximal CMY was 385.1 mL/g-VSSadded, which corresponded to an M–T digester with a 5% inoculation ratio. In the later stage of anaerobic digestion, the bacterial community of T–M was more diverse than that of M–T, but the archaeal community of M–T was more diverse than that of T–M. The one-step temperature change from thermophilic to mesophilic temperature was more stable than that from mesophilic to thermophilic temperature.

show abstract

Effects of Mixing Ratio on Dewaterability of Digestate of Mesophilic Anaerobic Co-Digestion of Food Waste and Sludge

Cited by 15 publications

References 29 publications

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Effectiveness of the pretreatment methods on mesophilic anaerobic co-digestion of fruit, food and vegetable waste

Effects of One-Step Abrupt Temperature Change on Anaerobic Co-Digestion of Kitchen Waste with Dewatered Sludge

Contact Info

Product

Resources

About