Removal of Nitrate by Eichhornia crassipes sp. in Landfill Leachate

Jaya, NM; Amir, Amnorzahira; Mohd-Zaki, Zuhaida

doi:10.1007/978-981-287-290-6_92

Cited by 5 publications

(6 citation statements)

References 29 publications

(55 reference statements)

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“…From this finding, it was found that the pH value of 7.84 was still within the permissible range of 6.0-9.0. In addition, the NO 2 and NO 3 value were lacking sources for comparison purposes except for the study made by [24] for the NO 3 which was lower than the NO 3 value obtained in this study. As for the BOD, the value exceeded the standard limit of 20 mg/L.…”

Section: Characterization Of Selected Parameters In the Leachate From...contrasting

confidence: 68%

“…Many studies believe that the persistent industrial production growth and trade around the world have been contributing to the increase in municipal and industrial waste production [23]. It is predicted that in the year of 2025, the production of waste globally will reach almost double to 2.2 billion tons even though all cities around the world are trying really hard to reach their waste reduction targets [23,24]. The high pH of the leachate may be caused by 82.7 mg/L of NH 3 -N which was beyond the standard limit of 5 mg/L that allowed by MEQA.…”

Section: Discussionmentioning

confidence: 99%

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Landfill leachate treatment using single and mixed freshwater cyanobacterial isolates

Razak,

Daud,

Aziz

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The increasing volume of waste disposal and improper management of landfill has been contributing to the heavily polluted leachate. Local freshwater cyanobacteria were identified based on the polyphasic approach that combines morphological and molecular identification by the 16S rRNA gene sequencing method. The local cyanobacteria isolate (A1) was identified as the genus Cyanobacterium of the order Chroococcales. The A1 isolate together with identified cyanobacteria, Anabaena sp. was used to observe their effectiveness in remediating leachate pollution either as monoculture or in mixed culture. Prior to the phycoremediation, the characterization of leachate had been carried out. The biological oxygen demand (BOD5), chemical oxygen demand (COD), pH value, concentration of ammonia-nitrogen (NH3-N), nitrite ( N O 2 − ) , and nitrate ( N O 3 − ) of the raw leachate determined were 22.37 mg/L, 58.33 mg/L, 7.84, 82.7 mg/L, 88.67mg/L and 89.43mg/L, respectively. The use of a single Anabaena sp. demonstrates the most effective in the removal of all contaminants that exist in the leachate. The removal of COD was the highest at 105.71% followed by BOD5 at 92.71% and NO3- at 82.09%. This finding suggested that in order to achieve optimum removal of BOD5, COD, NH3-N, NO2 - and NO3 - content in leachate sample, treatment by Anabaena sp. should be applied.

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Section: Characterization Of Selected Parameters In the Leachate From...contrasting

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Landfill leachate treatment using single and mixed freshwater cyanobacterial isolates

Razak,

Daud,

Aziz

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Aquatic plants have the ability to withstand the high pollution load of the landfill leachate without showing any sign of a significant cutback in biomass and growth rate [297]. Eichhornia crassipes in a floating system has shown the tremendous capacity of removing diverse HMs such as Cu, Ni, Pb, Cd and Cr from the landfill leachate, thus reducing the pollution density of the landfill leachate [298].…”

Section: Phytoremediation Of Landfill Leachatementioning

confidence: 99%

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

et al. 2020

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Heavy-metal (HM) pollution is considered a leading source of environmental contamination. Heavy-metal pollution in ground water poses a serious threat to human health and the aquatic ecosystem. Conventional treatment technologies to remove the pollutants from wastewater are usually costly, time-consuming, environmentally destructive, and mostly inefficient. Phytoremediation is a cost-effective green emerging technology with long-lasting applicability. The selection of plant species is the most significant aspect for successful phytoremediation. Aquatic plants hold steep efficiency for the removal of organic and inorganic pollutants. Water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes) and Duck weed (Lemna minor) along with some other aquatic plants are prominent metal accumulator plants for the remediation of heavy-metal polluted water. The phytoremediation potential of the aquatic plant can be further enhanced by the application of innovative approaches in phytoremediation. A summarizing review regarding the use of aquatic plants in phytoremediation is gathered in order to present the broad applicability of phytoremediation.

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“…High nitrate levels in leachate can affect both surface water and groundwater quality. This is an issue that has attracted the attention of researchers globally (Jaya & Amir 2015;Bialowiec et al, 2012;Matthews et al, 2009;and Mangimbulude et al, 2007). Some impacts associated with nitrate contamination include: methemoglobinemia, or 'blue baby syndrome', which occurs in young children who consume excessive volumes of water contaminated with nitrates (Ribbe et al, 2008;Gupta, 2001;Gelbrerg et al, 1999;Comly, 1945); stomach cancer; and the eutrophication of water bodies, which produced toxins that reduce the level of available oxygen and impacts biodiversity in aquatic ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Seasonal variation in the nitrate concentration of groundwater samples surrounding the Dangkor Municipal Solid Waste Landfill

Soknet,

Sorya

2019

ICJBAR

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Groundwater is classified as polluted if it contains sufficient chemical or biological contaminants to cause harm to living organisms. Nitrates are a common groundwater contaminant. In developing countries, a common source of nitrates in aquifers is Municipal Solid Waste (MSW) landfills, where they are produced from the decomposition of organic wastes. Nitrate pollution may cause groundwater quality surrounding MSW landfills to deteriorate if the issue is not managed. This research aims to investigate the presence and concentration of nitrates in leachate and groundwater samples surrounding the Dangkor landfill in Phnom Penh and recommend an effective approach for effectively monitoring and controlling these levels. Nitrate levels in leachate sampled from the landfill and groundwater sampled from surrounding tube wells was analyzed to assess (i) the seasonal variation in nitrate concentrations; (ii) spatial variation in the nitrate contamination of aquifers surrounding the landfill; and (iii) compliance with WHO standards. Groundwater samples were collected from three different wells at four sampling points located 500, 1000, 1500, and 2000 m from a reference point at Dangkor MSW landfill. Each sample was analyzed for the presence of nitrates before the concentration was analyzed. The results had several limitations but they suggest that there is no significant relationship between nitrate concentration in groundwater and distance from the landfill. Recorded nitrate levels were well within WHO guidelines for domestic use (50 mg/L) and as such, landfill leachate is not contributing to unsafe nitrate levels in groundwater aquifers between 500 m and 2000 m from the landfill site.

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Removal of Nitrate by Eichhornia crassipes sp. in Landfill Leachate

Cited by 5 publications

References 29 publications

Landfill leachate treatment using single and mixed freshwater cyanobacterial isolates

Landfill leachate treatment using single and mixed freshwater cyanobacterial isolates

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

Seasonal variation in the nitrate concentration of groundwater samples surrounding the Dangkor Municipal Solid Waste Landfill

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