Numerical Model of Leachate Recirculation in Bioreactor Landfills with High Kitchen Waste Content

Zhang, Peng; Liu, Hailong; Jiang, Xingyao; Lv, Hao; Cui, Chunyi; Huyan, Zhen

doi:10.3390/w13131750

Cited by 5 publications

(2 citation statements)

References 53 publications

(70 reference statements)

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“…Cooking waste can cause potential pollution to the soil and water environment and provide a significant challenge to urban governance [ 1 , 2 , 3 ]. Nowadays, commercial treatments for cooking waste recycling are mainly anaerobic digestion [ 4 , 5 , 6 ], aerobic composting [ 7 , 8 ], landfill [ 9 , 10 , 11 ], incineration [ 12 ], and forage making [ 7 ]. Although cooking waste can be treated through the above strategy with large-scale industrialization, there are some fatal shortcomings, such as the mass occupation of land, high investment for equipment, low product profit margin, easy production of secondary pollution like greenhouse gases, and waste leachate [ 1 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon and Carbon Quantum Dots/Titanium Dioxide Composite Based on Waste Rice Noodles: Simultaneous Synthesis and Application in Water Pollution Control

et al. 2022

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To achieve the full utilization of waste rice noodle (WRN) without secondary pollution, activated carbon (AC) and carbon quantum dots/titanium dioxide (CQDs/TiO2) composite were simultaneously synthesized by using WRN as raw material. Both of the two materials showed potential applications in water pollution control. The AC based on WRN displayed a porous spherical micro-morphology, which could absorb heavy metal elements like Pb(II) and Cr(VI) efficiently, with a maximum equilibrium uptake of 12.08 mg·g−1 for Pb(II) and 9.36 mg·g−1 for Cr(VI), respectively. The adsorption of the resulted AC could match the Freundlich adsorption isotherm and the pseudo-second-order kinetics mode. On the other hand, the CQDs/TiO2 composite based on WRN displayed a high efficient photocatalytic degradation effect on various water-soluble dyes such as methylene blue, malachite green, methyl violet, basic fuchsin, and rhodamine B under visible light irradiation, which showed better photocatalytic performance than commercial TiO2. The introduction of CQDs based on WRN to TiO2 could result in efficient electron-hole pair separation and enable more photogenerated electrons to reduce O2 and more photogenerated holes to oxidize H2O or OH−, which could cause stronger abilities in producing O2·− and ·OH radical and better photocatalytic activity.

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Section: Introductionmentioning

confidence: 99%

Activated Carbon and Carbon Quantum Dots/Titanium Dioxide Composite Based on Waste Rice Noodles: Simultaneous Synthesis and Application in Water Pollution Control

et al. 2022

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“…Disposing of municipal solid waste (MSW) has been a worldwide environmental issue for decades. [1] Despite the numerous solutions proposed in modern waste management models to reduce the mass of dumped MSW, landfilling is the widely applied technique to tackle those wastes [2,3] ; however, landfill leachate (LL) is continuously produced during the stabilization process, and contains a large amount of refractory organics, nitrogenous pollutants, and inorganic salts. [4] The production of MSW is continuously increasing.…”

Section: Introductionmentioning

confidence: 99%

Organic matter and nutrients removal from landfill leachate by airlift aerobic three‐phase fluidized bed reactor

Pantoja‐Quiroz,

Burbano‐Moreno,

Sánchez Ortiz

2023

CLEAN Soil Air Water

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The treatment of leachate from the Antanas Landfill in the municipality of Pasto, Colombia, was evaluated by means of aerobic three‐phase airlift fluidized bed reactors with internal circulation (ATPAFBRWIC) with an external and internal diameter ratio of 2 and an individual effective volume of 53 L. Silica sand was used as a carrier at a concentration of 104 g L−1, and the reactors were operated with hydraulic retention times (HRT) of 1, 2 and 4 h. For a period of 45 days, the following parameters were monitored at the influent and effluent of the reactors: biochemical oxygen demand (BOD), chemical oxygen demand (COD), total phosphorus (TP), total ammonia nitrogen (TAN), total Kjeldahl nitrogen, nitrites and nitrates, where the respective average concentrations recorded in the influent were 4225.9, 7115.2, 14.1, 1664.1, 1591.1, 0.41, and 31.8 mg L−1. The best performance in the removal of organic matter and nutrients was recorded for a 2‐h HRT, with average removal efficiency of 52.9% for BOD and 26.8% for COD, and 52.5, 5.6, and 56.2% for TP, TAN, and nitrates, respectively. The low volumes required for ATPAFBRWIC suggest their potential use as compact leachate treatment units.

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Electrochemical oxidation of landfill leachate using boron-doped diamond anodes: pollution degradation rate, energy efficiency and toxicity assessment

Wilk

Szopińska

Sobaszek

et al. 2022

Environ Sci Pollut Res

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Numerical Model of Leachate Recirculation in Bioreactor Landfills with High Kitchen Waste Content

Cited by 5 publications

References 53 publications

Activated Carbon and Carbon Quantum Dots/Titanium Dioxide Composite Based on Waste Rice Noodles: Simultaneous Synthesis and Application in Water Pollution Control

Activated Carbon and Carbon Quantum Dots/Titanium Dioxide Composite Based on Waste Rice Noodles: Simultaneous Synthesis and Application in Water Pollution Control

Organic matter and nutrients removal from landfill leachate by airlift aerobic three‐phase fluidized bed reactor

Electrochemical oxidation of landfill leachate using boron-doped diamond anodes: pollution degradation rate, energy efficiency and toxicity assessment

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