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1. Heterogeneous Fenton and persulfate oxidation for treatment of landfill leachate: A review supplement

Author:
Usman, Muhammad; Cheema, Sardar Alam; Farooq, Muhammad
Source:
Journal of cleaner production 2020 v.256 pp. 120448
ISSN:
0959-6526
Subject:
landfill leachates,   etc   ; oxidation; pollution control;     Show all 3 Subjects
Abstract:
... Here we discuss the role of heterogeneous Fenton oxidation and persulfate oxidation for the treatment of hazardous landfill leachate that readers should consider in addition to the advanced oxidation processes described by Gautam et al. (2019). ...
DOI:
10.1016/j.jclepro.2020.120448

2. A simple analytical solution for organic contaminant diffusion through a geomembrane to unsaturated soil liner: Considering the sorption effect and Robin-type boundary

Author:
Lin, Ye-Chen; Yeh, Hund-Der
Source:
Journal of hydrology 2020 v.586 pp. 124873
ISSN:
0022-1694
Subject:
landfill leachates,   etc   ; groundwater; mathematical models; risk; soil; sorption; toxic substances;     Show all 7 Subjects
Abstract:
... Landfill leachate often contains soluble hazardous substances. Geomembrane (GM) liner is commonly used to protect the subsurface water. The leachate however may diffuse through the GM and enter the underlying natural soil liner. Analytical or numerical modeling for the leachate transport in the soils helps assess the associated risk to groundwater resources. The analytical model has the advantages ...
DOI:
10.1016/j.jhydrol.2020.124873

3. Ecotoxicology of micronized tire rubber: Past, present and future considerations

Author:
Halle, Louise L.; Palmqvist, Annemette; Kampmann, Kristoffer; Khan, Farhan R.
Source:
The Science of the total environment 2020 v.706 pp. 135694
ISSN:
0048-9697
Subject:
leachates,   etc   ; ecotoxicology; microplastics; particulates; pollution; rubber; surveys; tires;     Show all 8 Subjects
Abstract:
... Micronized tire rubber has recently come into focus as black particles that are found in microplastic (MP) samples worldwide. These particles have been found in all environmental compartments with the most likely source being the abrasion of car tires on road surfaces. Thus, it is well founded that tires are a source of MPs and that tire abrasion is a primary source of anthropogenic particulates. ...
DOI:
10.1016/j.scitotenv.2019.135694

4. Dominant formation of unregulated disinfection by-products during electrocoagulation treatment of landfill leachate

Author:
Xu, Bing; Iskander, Syeed Md; He, Zhen
Source:
Environmental research 2020 v.182 pp. 109006
ISSN:
0013-9351
Subject:
landfill leachates,   etc   ; activated carbon; byproducts; chlorine; disinfection; electrocoagulation; monitoring; toxicity;     Show all 8 Subjects
Abstract:
... During the electrocoagulation (EC) treatment of landfill leachate, the production of chlorine species may result in the formation of harmful disinfection by-products (DBPs). This formation was investigated in the present study by monitoring five classes of DBPs (haloacetic acids-HAA, trihalomethanes-THM, haloacetonitriles-HAN, haloketones-HK, and halonitromethanes-HNM) in two leachate samples trea ...
DOI:
10.1016/j.envres.2019.109006

5. Effect of LCRS clogging on leachate recirculation and landfill slope stability

Author:
Feng, Shi-Jin; Chen, Zheng-Wei; Zheng, Qi-Teng
Source:
Environmental science and pollution research international 2020 v.27 no.6 pp. 6649-6658
ISSN:
0944-1344
Subject:
leachates,   etc   ; anisotropy; bioreactors; financial economics; guidelines; landfills; models; wastes; wells;     Show all 9 Subjects
Abstract:
... Vertical wells are commonly used for recirculating leachate into a landfill which can offer significant environmental and economic benefits. However, in some cases, the leachate collection and removal system (LCRS) at the bottom is overloaded and clogged due to biological and chemical processes. This results in a relatively high leachate level which could pose a threat to landfill slope stability. ...
DOI:
10.1007/s11356-019-07383-1

6. Experimental investigation on the migration of leachate under flowing conditions through laboratory ERT

Author:
Yang, Ping; Liu, Yao-hui; Zhang, Si-hao; Pan, Ya-fei
Source:
Environmental science and pollution research international 2019 v.26 no.17 pp. 17457-17471
ISSN:
0944-1344
Subject:
leachates,   etc   ; laboratory experimentation; landfills; monitoring;     Show all 4 Subjects
Abstract:
... With an increase of service time of landfills, a great amount of old landfills begin to leak and the leachate impairs the surrounding environment severely. Defining the flow of leachate is significant to the monitoring and restoration of the landfill. Field tests and laboratory tests are often used to investigate the leachate flow. However, many uncontrollable factors may affect the accuracy of fi ...
DOI:
10.1007/s11356-019-04962-0

7. The wet oxidation of aqueous humic acids

Author:
García, Manuel; Collado, Sergio; Oulego, Paula; Díaz, Mario
Source:
Journal of hazardous materials 2020 v.396 pp. 122402
ISSN:
0304-3894
Subject:
landfill leachates,   etc   ; aqueous solutions; color; humic acids; kinetics; malic acid; mineralization; oxidation; pH; sewage sludge; temperature;     Show all 11 Subjects
Abstract:
... Humic acids are highly distributed in aqueous environments. This article examines in depth the advanced oxidation of humic acid aqueous solutions, in order to understand more complex oxidation processes such as those of the sewage sludge or landfill leachate, or the matrix effects triggered by the humic acids of natural organic matter (NOM) in the oxidation of other aqueous compounds as herbicides ...
DOI:
10.1016/j.jhazmat.2020.122402

8. Leaching behaviors and speciation of cadmium from river sediment dewatered using contrasting conditioning

Author:
Li, Tian; Shi, Yafei; Li, Xiaoran; Zhang, Huiqin; Pi, Kewu; Gerson, Andrea R.; Liu, Defu
Source:
Environmental pollution 2020 v.263 pp. 114427
ISSN:
0269-7491
Subject:
leachates,   etc   ; bioavailability; cadmium; chlorides; coagulation; dewatering; leaching; oxidation; polyacrylamide; risk; risk assessment; rivers; sediments;     Show all 13 Subjects
Abstract:
... Chemical conditioning is an effective strategy for improved river sediment dewatering affecting both the dewatering efficiency and subsequent resource utilization of the dewatered cake. Two types of conditioning agents, polyaluminium chloride (PAC)/cationic polyacrylamide (PAM) (coagulation precipitation conditioning agent, referred to as P–P conditioning) and ferrous activated sodium persulfate ( ...
DOI:
10.1016/j.envpol.2020.114427

9. Impact of continuous leachate recirculation during solid state anaerobic digestion of Miscanthus

Author:
Li, Chao; Tao, Yu; Fang, Jun; Li, Qiang; Lu, Wenjing
Source:
Renewable energy 2020 v.154 pp. 38-45
ISSN:
0960-1481
Subject:
leachates,   etc   ; Miscanthus; anaerobic digestion; biogas; cellulose; gas production (biological); hemicellulose; methane; methane production; microbial communities;     Show all 10 Subjects
Abstract:
... Continuous leachate recirculation was performed in a solid-state anaerobic digestion (SS-AD) in an attempt to enhance and improve the biogas (methane) production from Miscanthus sp. Furthermore, microbial community dynamics was analysed, and liaised with the process performance and stability. Results showed that the SS-AD process without leachate recirculation showed significantly higher degradati ...
DOI:
10.1016/j.renene.2020.02.104

10. Forecasting leachate generation from pilot woodchip stockpiles using a three-dimensional transient flow model

Author:
Amato, Matthew T.; Giménez, Daniel; Kannepalli, Sarat; Strom, Peter F.; Krogmann, Uta; Miskewitz, Robert J.
Source:
Journal of environmental management 2020 v.262 pp. 110379
ISSN:
0301-4797
Subject:
leachates,   etc   ; Bayesian theory; Markov chain; algorithms; aquatic ecosystems; mathematical models; prediction; rain; transient flow; wood chips;     Show all 10 Subjects
Abstract:
... Leachate generation from open stockpiles of recycled woodchip materials is potentially harmful to aquatic ecosystems. There is growing interest in using numerical models to simulate leachate generation from outdoor piles, but this requires information about the hydraulic properties of the materials. The objectives of this study were to simulate leachate from woodchip piles with the numerical model ...
DOI:
10.1016/j.jenvman.2020.110379

11. Effect of the specific surface area of MgO on the treatment of boron and fluorine

Author:
Kameda, Tomohito; Yamamoto, Yusuke; Kumagai, Shogo; Yoshioka, Toshiaki
Source:
Applied water science 2020 v.10 no.5 pp. 104
ISSN:
2190-5487
Subject:
landfill leachates,   etc   ; absorbents; boron; fluorine; ions; magnesium oxide; surface area; temperature; wastewater; wastewater treatment;     Show all 10 Subjects
Abstract:
... To realize improved wastewater treatment processes, the study investigated the processing of boron and fluorine and the processing of real landfill leachate using MgO with different specific surface areas. By optimizing the MgO absorbent, the time required for boron and fluorine processing can be reduced dramatically and uniform wastewater quality standards can be achieved. The rate constants for ...
DOI:
10.1007/s13201-020-01198-z

12. Electro-activated peroxymonosulfate and peroxydisulfate oxidation of leachate nanofiltration concentrate: multiple-response optimization

Author:
Varank, G.; Yazici Guvenc, S.; Demir, A.
Source:
International journal of environmental science and technology 2020 v.17 no.5 pp. 2707-2720
ISSN:
1735-1472
Subject:
leachates,   etc   ; biodegradability; chemical oxygen demand; computer software; mathematical models; nanofiltration; oxidation; pH; regression analysis; variance;     Show all 10 Subjects
Abstract:
... In this study, the performance of electro-peroxymonosulfate and electro-peroxydisulfate methods in biologically stabilized leachate nanofiltration concentrate treatment was investigated. To increase treatability and biodegradability of the concentrated leachate was aimed. Central composite design was applied for the optimization of process parameters and development of mathematical model. Variance ...
DOI:
10.1007/s13762-020-02651-x

13. Evaluation of partial nitrification efficiency as a response to cadmium concentration and microplastic polyvinylchloride abundance during landfill leachate treatment

Author:
Li, Lu; Li, Zhouyang; Liu, Dan; Song, Kang
Source:
Chemosphere 2020 v.247 pp. 125903
ISSN:
0045-6535
Subject:
landfill leachates,   etc   ; ammonia; ammonium nitrogen; cadmium; kinetics; microplastics; nitrate nitrogen; nitrification; oxidation; poly(vinyl chloride);     Show all 10 Subjects
Abstract:
... The partial nitrification efficiency response to the presence of cadmium (Cd²⁺) and microplastics was investigated. Microplastics polyvinylchloride (PVC) abundance was 0–10,000 particles/L, and Cd²⁺ concentration was 0–10 mg/L. Cd-only inhibited the NH₄⁺-N oxidation rate 1.21, 1.23, and 1.18 times with concentrations at 1, 5, and 10 mg/L, respectively. PVC-only inhibited NH₄⁺-N oxidation rate 1.01 ...
DOI:
10.1016/j.chemosphere.2020.125903

14. NTA-enhanced Pb remediation efficiency by the phytostabilizer Athyrium wardii (Hook.) and associated Pb leaching risk

Author:
Yu, Haiying; Zhan, Juan; Zhang, Qingpei; Huang, Huagang; Zhang, Xizhou; Wang, Yongdong; Li, Tingxuan
Source:
Chemosphere 2020 v.246 pp. 125815
ISSN:
0045-6535
Subject:
leachates,   etc   ; Athyrium; biodegradability; biomass; carbonates; groundwater; leaching; lead; nitrilotriacetic acid; pH; phytoaccumulation; risk; roots; soil;     Show all 14 Subjects
Abstract:
... Nitrilotriacetic acid (NTA), a biodegradable chelant, has been promoted to effectively assist Pb phytoextraction, while a few researches available on the phytostabilizer of Athyrium wardii (Hook.). In this study, two incubation experiments and a subsequent column experiment were conducted to investigate the effects of application of NTA on Pb availability in soils and Pb accumulation in A. wardii ...
DOI:
10.1016/j.chemosphere.2020.125815

15. Effects of desiccation-induced cracking and leachate infiltration on the hydraulic conductivity of natural and olivine-treated marine clay

Author:
Emmanuel, E.; Anggraini, V.
Source:
International journal of environmental science and technology 2020 v.17 no.4 pp. 2259-2278
ISSN:
1735-1472
Subject:
landfill leachates,   etc   ; clay; clay soils; cracking; gels; hydraulic conductivity; landfills; olivine; permeability; smectite; tap water;     Show all 11 Subjects
Abstract:
... Clayey soils rich in smectite are commonly utilized for the construction of liner materials in engineered landfills owing to their low hydraulic conductivity. However, due to the high swelling potential of such clayey soils, their hydraulic conductivities are adversely influenced by desiccation cracking. In addition to cracks, the hydraulic conductivity of the clayey soils might also be affected b ...
DOI:
10.1007/s13762-019-02606-x

16. Evaluation of automotive shredder residues (ASR) landfill behavior through lysimetric and traditional leaching tests

Author:
Mancini, Giuseppe; Luciano, Antonella; Viotti, Paolo; Fino, Debora
Source:
Environmental science and pollution research international 2020 v.27 no.12 pp. 13360-13369
ISSN:
0944-1344
Subject:
landfill leachates,   etc   ; biochemical oxygen demand; chemical oxygen demand; landfills; leaching; lysimeters; waste disposal; wastes;     Show all 8 Subjects
Abstract:
... With regards to European waste catalog, automotive shredder residues (ASR) can be classified both as a hazardous or non-hazardous waste according to its hazardous properties (H1–H14). It is thus important to carry out an adequate chemical-physical characterization to identify the presence and concentration of those substances able to give, to this extremely heterogeneous material, the hazardousnes ...
DOI:
10.1007/s11356-020-07788-3

17. A strontium isotope baseline of Cyprus. Assessing the use of soil leachates, plants, groundwater and surface water as proxies for the local range of bioavailable strontium isotope composition

Author:
Ladegaard-Pedersen, Pernille; Achilleos, Maria; Dörflinger, Gerald; Frei, Robert; Kristiansen, Kristian; Frei, Karin Margarita
Source:
The Science of the total environment 2020 v.708 pp. 134714
ISSN:
0048-9697
Subject:
leachates,   etc   ; aerosols; archaeology; bioavailability; forensic sciences; groundwater; lithology; provenance; soil; stable isotopes; strontium; surface water; Cyprus;     Show all 13 Subjects
Abstract:
... In this study, a strontium isotope baseline for Cyprus is presented. The aim of the study was two-fold; first to provide an environmental multi-proxy-based baseline (water/plants/soil leachates) suitable for archaeological provenance and mobility studies, food source authentication, and forensic investigations; and second, to contribute to the debate around which proxy (or combination of proxies) ...
DOI:
10.1016/j.scitotenv.2019.134714

18. Enhancing microalgae growth and landfill leachate treatment through ozonization

Author:
Quan, Xuejun; Hu, Rui; Chang, Haixing; Tang, Xiaoyu; Huang, Xiaoxue; Cheng, Chen; Zhong, Nianbing; Yang, Lu
Source:
Journal of cleaner production 2020 v.248 pp. 119182
ISSN:
0959-6526
Subject:
landfill leachates,   etc   ; biofilm; biomass production; bioremediation; cobalt; color; microalgae; nitrogen; nutrients; oxidation; ozonation; ozone; phosphorus;     Show all 13 Subjects
Abstract:
... Phycoremediation of landfill leachate (LL) with microalgae is a promising approach but the performances are usually inhibited by complex macromolecular organics and high chromaticity of the LL. To realize high-efficiency LL remediation and microalgae biomass production, a technique integrating ozonization and microalgae bioremediation was proposed, in which the LL was first pretreated with ozone t ...
DOI:
10.1016/j.jclepro.2019.119182

19. Antibiotic resistome in a landfill leachate treatment plant and effluent-receiving river

Author:
Wang, Jia-Ying; An, Xin-Li; Huang, Fu-Yi; Su, Jian-Qiang
Source:
Chemosphere 2020 v.242 pp. 125207
ISSN:
0045-6535
Subject:
landfill leachates,   etc   ; antibiotic resistance; antibiotic resistance genes; carbapenems; monitoring; risk; rivers;     Show all 7 Subjects
Abstract:
... Landfills leachate contained diverse antibiotic resistance genes (ARGs). Treated landfill leachate effluent could enter into the downstream environments, leading to the dissemination of ARGs, which might pose a health risk to public. Here, we used high-throughput qPCR to characterize the resistome and 16S rRNA-based Illumina sequencing to analyze the bacterial community in a leachate treatment pla ...
DOI:
10.1016/j.chemosphere.2019.125207

20. Ammonia removal and recovery from municipal landfill leachates by heating

Author:
Schwarzwälder Sprovieri, João Augusto; Octavio de Souza, Theo Syrto; Contrera, Ronan Cleber
Source:
Journal of environmental management 2020 v.256 pp. 109947
ISSN:
0301-4797
Subject:
landfill leachates,   etc   ; ammonia; ammonium nitrogen; distillation; evaporation; heat; surface water; temperature;     Show all 8 Subjects
Abstract:
... In this research, ammonia evaporation capacity under atmospheric and vacuum pressure conditions, as well as distillation capacity of different concentrations of landfill leachates, were evaluated. Simple evaporation and vacuum pressure evaporation tests showed high NH₃–N removal efficiencies, ranging from 95% to 98% for raw landfill leachates, indicating that vacuum pressure would not be necessary ...
DOI:
10.1016/j.jenvman.2019.109947