Characterization of antibiotic mycelial residue (AMR) dewatering performance with microwave treatment

Cai, Chen; Liu, Huiling; Wang, Mengmeng

doi:10.1016/j.chemosphere.2017.01.121

Cited by 30 publications

(6 citation statements)

References 42 publications

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“…Cai et al. dewatered AMR using microwave irradiation and monitored its dewaterability using CST . Their study demonstrated that the microwave irradiation disintegrated the AMR matrix promoting the water release as shown in Figure .…”

Section: Performance Assessment Of Flocculantsmentioning

confidence: 99%

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

Vajihinejad

Gumfekar

Bazoubandi

et al. 2018

Macro Materials & Eng

142

108

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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.

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Section: Performance Assessment Of Flocculantsmentioning

confidence: 99%

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

“…Besides, it gradually decreased following S-EPS and LB-EPS extraction, mainly because the sludge microbial cell wall was destroyed after LZM conditioning, causing the destruction of sludge network structure and the reduction of particle size. Additionally, small particles were featured with enlarged speci c surface area, which could more easily adsorb water molecules, thus resulting in the increased proportion of capillary water, adsorption water and bound water within sludge ocs (Cai, et al, 2017;Carrasco and Gao, 2019). Compared with the above, after TB-EPS extraction, the sludge particle size signi cantly increased, with the maximum of 95.72 μm.…”

Section: The Change Of Sludge Particle Sizementioning

confidence: 98%

Changes of network structure and water distribution in sludge with the stratified extraction of extracellular polymeric substances

Lin

2022

Environ Sci Pollut Res

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For illustrating how extracellular polymeric substance (EPS) affected sludge water distribution, the present work comprehensively analyzed change of viscoelasticity and sludge network structure before/after EPS extraction, together with the sludge dewaterability and water distribution after biological, chemical and physical method conditioning. The results suggested the proportion of capillary water and adsorption water carried in soluble EPS (S-EPS) was 59.17% and 40.83%, and that in tightly-bound EPS (TB-EPS) was 54.77% and 45.23%, respectively. By contrast, the capillary water in loosely-bound EPS (LB-EPS) accounted for as high as 99.99%. Relative to raw sludge, adsorption water proportion in TB-EPS and S-EPS was reduced after lysozyme (LZM) or freezing-thaw conditioning, which was ascribed to reduction of EPS viscosity and the weakness of water adsorption capacity. Additionally, the sludge yield stress (τ y ) value rst reduced and then increased with the extraction of EPS, and the consistency coe cient (k) also decreased from 4.23 Pa•s n to 0.006 Pa•s n and then slightly increased after LZM conditioning. This observation indicated the sludge system became sensitive to shearing, and its network structural strength as well as colloid elasticity rst weakened and then slightly strengthened. What's more, after LZM or freezing-thaw conditioning, the sludge particle size signi cantly increased after TB-EPS extraction, while the sludge particle more easily absorbed water molecules, leading to the increase of the capillary water and adsorption water in sludge ocs. These changes reasonably explained the reason that sludge ltration performance was deteriorated after TB-EPS extraction.

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“…gypsum, lignite, slag and construction waste, etc. [101,102], or applying thermal [103], microwave [104], ultrasonic pretreatment [105], or their combinations [106,107]. Chemical conditioning is made by adding acids or alkalis [108], surfactants [109], bio-chemical agents [110], coagulant/flocculants [111], or using electrochemical methods, etc., [112]) to change the intrinsic nature of sewage sludge and improve the dewatering performance.…”

Section: Reduction Of Moisture Content Of Sewage Sludgementioning

confidence: 99%

Thermochemical conversion of sewage sludge for energy and resource recovery: technical challenges and prospects

Zhang

et al. 2021

Environmental Pollutants and Bioavailability

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Thermochemical processes are considered as a promising technology for sewage sludge management, which could achieve volume reduction, energy and resource recovery, and effective destruction of pathogens. However, there are still many technology limitations and challenges of the thermochemical processes toward industrialization and commercialization. This review first briefly discusses the impact of sewage sludge on environmental sustainability and its current treatment and disposal methods. Typical thermochemical conversion technologies i.e., incineration/combustion, pyrolysis, gasification, and hydrothermal liquefaction for energy and resource recovery from sewage sludge are then comprehensively summarized. Subsequently, the technical challenges of thermochemical conversion of sewage sludge and the solutions that have been and/or are being developed to address the challenges are in-depth analyzed. Meanwhile, the prospects and future directions of the thermochemical technologies are outlined. In addition, the economic analysis and life cycle assessment of thermochemical conversion technologies are evaluated. Finally, the conclusions are put forward.

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Characterization of antibiotic mycelial residue (AMR) dewatering performance with microwave treatment

Cited by 30 publications

References 42 publications

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

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

Changes of network structure and water distribution in sludge with the stratified extraction of extracellular polymeric substances

Thermochemical conversion of sewage sludge for energy and resource recovery: technical challenges and prospects

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