Evaluation of phytotoxicity of municipal landfill leachate before and after biological treatment

Klauck, Cláudia Regina; Rodrigues, Marco Antônio Siqueira; Silva, L B

doi:10.1590/1519-6984.1813

Cited by 30 publications

(14 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…During leachate toxicity tests on three species i.e., lettuce (Lactuca sativa L.), arugula (Eruca sativa Mill.) and onion (Allium cepa L.), seed germination test was found to be insensitive to leachate toxicity (Klauck et al, 2015). The same was found during the study conducted by Vaisi andŽaltauskaitė (2010) on lettuce (Lactuca sativa L.), which showed no clear relationship between seed germination and leachate concentration.…”

Section: Effect Of Leachate On Seed Germinationsupporting

confidence: 58%

Comparison of Landfill Leachate Properties by LPI and Phytotoxicity-A Case Study

Wdowczyk

Szymańska‐Pulikowska

2021

Front. Environ. Sci.

View full text Add to dashboard Cite

The formation of leachate is one of the inevitable consequences associated with the operation of landfills. In addition to the study of physicochemical composition, toxicity is an important parameter taken into account, among others because of the need to subject leachate to treatment before discharge into the environment. The aim of this study was to determine the degree of leachate contamination using LPI and toxicity index. An analysis of the relationship between the toxic effect on plants and the calculated LPI values was also carried out to assess whether they could provide a measure of leachate toxicity when selecting a treatment method. The research conducted was to determine the degree of leachate contamination using LPI and toxicity index. An analysis of the relationship between the toxic effect on plants and the calculated LPI values was also carried out to assess whether they could provide a measure of leachate toxicity when selecting a treatment method. Calculated values of the leachate pollution index showed that leachates from selected Polish landfills are characterized by low and medium levels of LPI values. The variation in index values obtained was particularly evident between active and closed landfills and was related to the physicochemical composition of leachates. In closed landfills this value ranged from 7.4 to 11.1, while in active landfills from 12.9 to 15.9. The variation in index values obtained was particularly evident between active and inactive landfills and was related to the physicochemical composition of leachates. Phytotoxicity tests showed that leachate at low concentrations can promote plant growth. At higher concentrations (50 and 100%), leachates caused inhibition of root and shoot growth, which correlated with high LPI values. The results confirmed the relationship between the toxic effect on plants and the LPI values, so it can be considered as a reliable indicator of leachate toxicity.

show abstract

Section: Effect Of Leachate On Seed Germinationsupporting

confidence: 58%

Comparison of Landfill Leachate Properties by LPI and Phytotoxicity-A Case Study

Wdowczyk

Szymańska‐Pulikowska

2021

Front. Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…At its maximum concentration, leachate reduced the germination capacity of L. sativa, with 86.6% of the seeds germinating. Comparably, the raw leachate from a deactivated sanitary landfill located in the region of Vale dos Sinos, in the state of Rio Grande do Sul, Brazil, also presented toxicity for this species, with 90% of the seeds germinating (Klauck et al, 2015). Lycopersicon esculentum seeds appeared to be more sensitive than the L. sativa seeds, with the leachate reducing the number of germinated seeds with an increase in concentration and completely inhibited germination at a 100% concentration (Table 2).…”

Section: Resultsmentioning

confidence: 99%

Biomonitors to evaluate the toxic potential of urban solid waste landfill leachate

Vieira

Droste

2019

Rev. ambiente água

View full text Add to dashboard Cite

The accentuated increase in the production of solid urban waste (SUW) and the consequent accumulation of leachate in landfills increase the risk of environmental contamination. Biomonitors are used to assess the toxicity of pollutants on living organisms. In this study, the pollutant potential of leachate from SUW from a deactivated landfill was evaluated by bioassays with Lactuca sativa L. and Lycopersicon esculentum Mill., and the relationship between chemical characteristics of the effluent and biological parameters was analyzed. The effluent was tested in its raw form and diluted in distilled water at concentrations of 75 and 50%. The percentage of germination, root growth (RG), mitotic index (MI), chromosomal abnormalities index (CAI), and micronuclei frequency (MCN) were analyzed. In the presence of effluent, germination and MI decreased, while RG, CAI and MCN frequencies increased in relation to the negative control (distilled water) for both species. Lead, iron and zinc presented negative relation with seed germination for both species, with RG of L. sativa and MI of L. esculentum, as well as a positive relation with MCN frequency in the studied species. Because of its larger chromosomes, L. sativa is a more suitable biomonitor of SUW leachate toxicity than L. esculentum. Even though the landfill is deactivated, it is necessary to treat this effluent, in order to minimize environmental impacts.

show abstract

“…The toxicity of landfill leachate has been extensively tested by the bioassay method. The tool used to assess the risk of biota due to the pollutant is the bioassay (Klauck et al, 2015;Knie and Lopes, 2004). Toxicity tests are used to measure the number of substances exposed to an organism before the side effects of landfill leachate occur (Thomas et al, 2009).…”

Section: Leachate Processing Protocol In Constructed Wetlandmentioning

confidence: 99%

Plant Diversity in a Constructed Wetland for Pollutant Parameter Processing on Leachate: A Review

Arliyani¹,

Tangahu²,

Mangkoedihardjo³

2021

J. Ecol. Eng.

View full text Add to dashboard Cite

The increase in urban solid waste has become a massive burden on society resulting in the environmental and economic problems, particularly in terms of poor solid waste management (Luo et al., 2020). Ninety-five percent of urban solid waste worldwide is disposed of in landfills (Gao et al., 2014). Landfills provoke several risks, as wastes may release harmful elements into the environment. The leachate from landfill remains a critical problem, because it may pose a threats to land, surface water, and groundwater (Yan et al., 2015). Factors such as area conditions, age, type of waste, and operation of the landfill can vary the content of the landfill (Fang et al., 2017). Countries with tropical climate produce more organic wastes (Idris et al., 2004). The content of organic substance in wastewater is represented by the values of Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). The BOD and COD values are used to determine the degradation rate of landfill leachate (Barlaz et al., 2002;Borglin et al., 2004). The values of BOD/COD leachate ratio in tropical regions are 0.03-0.74 higher than in other regions. In general, the BOD/ COD ratio values in tropical regions are BOD> 100 g/m 3 and COD> 500 g/m 3 in landfill leachate. Bakhshoodeh et al., (2020) showed that the content of organic substance in leachate is toxic to microbial activities.Conventional leachate processing is classified into three major groups, those are 1) chemicalphysical process, 2) biological process, and 3)

show abstract

Evaluation of phytotoxicity of municipal landfill leachate before and after biological treatment

Cited by 30 publications

References 33 publications

Comparison of Landfill Leachate Properties by LPI and Phytotoxicity-A Case Study

Comparison of Landfill Leachate Properties by LPI and Phytotoxicity-A Case Study

Biomonitors to evaluate the toxic potential of urban solid waste landfill leachate

Plant Diversity in a Constructed Wetland for Pollutant Parameter Processing on Leachate: A Review

Contact Info

Product

Resources

About