Effect of submerged combustion evaporation on Cd complexation potential of organic matter in municipal solid waste landfill leachate

Zhang, Lingyue; Wang, Xinyue; Yue, Dongbei

doi:10.1016/j.envpol.2020.115573

Cited by 15 publications

(5 citation statements)

References 35 publications

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“…To further demonstrate the SLCs selective performance in complex wastewater matrices, municipal solid waste (MSW) leachate containing much higher organic [26] (The concentration of total organic carbon (TOC) ranges from 3000 to 10 000 mg L −1 ) and salt concentrations (The concentration of total dissolved solids ranges from 10 000 to 30 000 mg L −1 ) than domestic sewage [27] was sampled from six leachate treatment plants in this study. Representative cationic and nonionic surfactants were quantified as well within the leachate before and after adsorption to comprehensively verify the selective SLCs adsorption ability of S-SPDA-PU.…”

Section: Selective Removal Performance In Complex Wastewater Matricesmentioning

confidence: 99%

Superhydrophobic Nanoparticles: An Efficiently Selective Adsorbent for Surfactant‐Like Contaminants from Complex Wastewater Matrices

Zhang,

Tang,

Tang

et al. 2023

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Surfactant‐like contaminants (SLCs) with distinctive amphiphilic structures have become a global concern in wastewater due to their toxicity and persistency. Despite extensive efforts, achieving efficient and selective SLCs removal remains challenging because of their wide range of molecular weights and complex functional group compositions. Superhydrophobic nanoparticles can potentially tackle this challenge by targeting the long oleophilic chains of SLCs. However, conventional contact angle measurements hinder hydrophobicity characterization and corresponding selectivity research because of the powder morphology of nanoparticles. Herein, the authors offered information regarding the distribution of water molecular probes in surfaces and proposed a quantitative characterization approach based on low‐field nuclear magnetic resonance. Through synthesizing superhydrophobic and hydrophilic polydopamine nanospheres with similar morphologies, the selective adsorption potential of superhydrophobic nanoparticles for SLCs is systematically demonstrated. As revealed by the interaction mechanisms, the superhydrophobic surface of nanospheres increased its affinity and selectivity for SLCs adsorption by enhancing hydrophobic interactions. Superhydrophobic modification achieved ten times the adsorption capacity of sodium dodecyl benzene sulfonate, an exemplified surfactant, compared with pristine nanoparticles. By regulated self‐polymerization, the superhydrophobic nanospheres are coated onto the surface of a 3D sponge and enable efficient selective SLCs adsorption from highly polluted leachate matrices with long‐term stability and reusability.

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Section: Selective Removal Performance In Complex Wastewater Matricesmentioning

confidence: 99%

Superhydrophobic Nanoparticles: An Efficiently Selective Adsorbent for Surfactant‐Like Contaminants from Complex Wastewater Matrices

Zhang,

Tang,

Tang

et al. 2023

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“…LLMC treatment options include physicochemical processes (e.g. C/F, EC, adsorption, AOPs, ozonation and S/S) ( An et al, 2012 ; Chen et al, 2019 ; He et al, 2021 ; Hong et al, 2017 ; Kallel et al, 2017 ; Ren et al., 2021 ; Top et al, 2011 ; Wang et al, 2020 ), biological methods ( Yang et al, 2018 ) and thermal processes, including membrane distillation (MD) – a thermally driven membrane filtration technique ( Chen et al, 2021a ; Yue et al, 2007 ; Zhang et al, 2019 , 2020 ) or even combinations of them ( Ding et al, 2021 ; Woo et al, 2019 ). Several treatment technologies have been proposed and assessed in laboratory investigations; however, full-scale project data are scarce, and research is needed to cover this aspect.…”

Section: Lfl Membrane Concentrate Managementmentioning

confidence: 99%

A review on membrane concentrate management from landfill leachate treatment plants: The relevance of resource recovery to close the leachate treatment loop

Almeida

Porto

Quintaes³

et al. 2022

Waste Manag Res

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Membrane filtration processes have been used to treat landfill leachate. On the other hand, closing the leachate treatment loop and finding a final destination for landfill leachate membrane concentrate (LLMC) – residual stream of membrane systems – is challenging for landfill operators. The re-introduction of LLMC into the landfill is typical; however, this approach is critical as concentrate pollutants may accumulate in the leachate treatment facility. From that, leachate concentrate management based on resource recovery rather than conventional treatment and disposal is recommended. This work comprehensively reviews the state-of-the-art of current research on LLMC management from leachate treatment plants towards a resource recovery approach. A general recovery train based on the main LLMC characteristics for implementing the best recovery scheme is presented in this context. LLMCs could be handled by producing clean water and add-value materials. This paper offers critical insights into LLMC management and highlights future research trends.

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“…At present, the treatment methods for LC include recirculation [10] , incineration [8,9] , advanced oxidation process (AOP) [11,12] , electrochemical process [13,14] and submerged combustion evaporation (SCE) [15,16] .…”

Section: Introductionmentioning

confidence: 99%

“…The studies of electrochemical process are all focused on laboratory-scale, and its industrialization is still a long way off [7] . Compared with methods above, SCE method has been considered as one of the most promising and effective processes to deal with LC [15,17] . SCE used land ll gas or biogas produced through fermentation in waste incineration plant as a heat source, and sends land ll gas or biogas and air for combustion below the liquid level of LC, and a large number of tiny bubbles are generated in the LC, the heat transferred during this process through directly contacting between gas and liquid, and the LC can be directly heated and evaporate.…”

Section: Introductionmentioning

confidence: 99%

“…SCE used land ll gas or biogas produced through fermentation in waste incineration plant as a heat source, and sends land ll gas or biogas and air for combustion below the liquid level of LC, and a large number of tiny bubbles are generated in the LC, the heat transferred during this process through directly contacting between gas and liquid, and the LC can be directly heated and evaporate. The interface of interwall for heat transfer is not required, this evaporation technology get rid of the shortcoming of traditional evaporation equipment which is easy to fouling [17] . During evaporation, a small amount of volatile organic matter and ammonia nitrogen in the liquid phase enter the condensate, while inorganic matter, macromolecular organic matter and heavy metal salt remain in the concentrated liquid.…”

Section: Introductionmentioning

confidence: 99%

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Experimental study on treatment of leachate concentrate from disk-tube reverse osmosis treatment in a waste incineration plant by gas-liquid contact evaporation

Qi¹,

Huang²,

Qi³

et al. 2023

Preprint

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Gas-liquid contact evaporation is a promising and effective technology for treatment of leachate concentrate (LC) in the waste incineration plant as this technology can utilize local resource such as anaerobic biogas and heat air passing through air preheater in the waste incineration plant turning LC into supplying water for circulating cooling water system. the influence of pH, temperature of air preheater and rate of evaporation on COD and NH3-N in condensate water were investigated in a laboratory-scale evaporator to identify the optimum operation of this technology. The results showed that the COD concentration in condensate water obviously decreased with increase of temperature of air preheater as higher temperature of air preheater led to higher the initial evaporation temperatures, the evaporation rate of water was significantly greater than that of small molecular organic matters with lower boiling point than water. COD in condensate water decreased with the increase of pH, as and the amount of volatile organic matters such as fatty acids, which were hydrolyzed, escaped from LC to condensate water decreased. The rate of evaporation had little influence on COD in the condensate water. NH3-N concentrations in condensate water in all experimental groups were far away from the limit value (14 mg/L) in the water quality standard for industry uses (GB/T 19923 − 2005) in China. When the condensate water can meet the water quality standard for using as supplying water for circulating cooling water system, the energy consumption, carbon emission and economic cost were lowest at the optimum condition which was at 450 ℃ of temperature of air preheater and pH = 6 of LC when CF = 10. The conclusions can promote the industrial application of direct contact evaporation treatment of LC.

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Effect of submerged combustion evaporation on Cd complexation potential of organic matter in municipal solid waste landfill leachate

Cited by 15 publications

References 35 publications

Superhydrophobic Nanoparticles: An Efficiently Selective Adsorbent for Surfactant‐Like Contaminants from Complex Wastewater Matrices

Superhydrophobic Nanoparticles: An Efficiently Selective Adsorbent for Surfactant‐Like Contaminants from Complex Wastewater Matrices

A review on membrane concentrate management from landfill leachate treatment plants: The relevance of resource recovery to close the leachate treatment loop

Experimental study on treatment of leachate concentrate from disk-tube reverse osmosis treatment in a waste incineration plant by gas-liquid contact evaporation

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