Phytoremediation and rehabilitation of municipal solid waste landfills and dumpsites: A brief review

Nagendran, R.; Selvam, Ammaiyappan; Joseph, Kurian; Chiemchaisri, Chart

doi:10.1016/j.wasman.2006.05.003

Cited by 120 publications

(72 citation statements)

References 53 publications

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“…The cost of phytoremediation is only 10-20% of the conventional physical methods (Tsao, 2003). Phytoremediation is a cost-effective and environmentfriendly approach to remove heavy-metal contaminants from soil (Nagendran et al, 2006;Tsao, 2003). Certain plants have been found to be hyper-accumulators of toxic metals through laboratory experiments and field tests.…”

Section: Introductionmentioning

confidence: 99%

Effect of arsenic absorption on the water‐refilling speed of Pteris cretica

Lee

2010

Microscopy Res & Technique

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Heavy metals are largely responsible for soil and water pollution. Recently, phytoremediation is receiving a large attention as a plant-based technology for removing metals from contaminated soil and water in an environment-friendly and cost-effective way. In such context, some species of ferns such as Pteris cretica were found to be a hyper-accumulator of arsenic (As). In this study, we first explored the validity of measuring the water-refilling process in xylem vessels of Pteris cretica using the synchrotron X-ray microimaging technique. Then we investigated the effects of arsenic concentration on the water-refilling speed inside the xylem vessel. The methodology to measure the water-refilling speed was consistent within five repetitions and 3 hours after the stem sample was cut from the plant. The water-refilling speed in the xylem vessels of the Pteris grown in arsenic solution was faster than that in normal water. Arsenic concentration of 0-1,000 μM was tested and the maximum speed was obtained at 500 μM. Conclusively, the experimental methodology developed in this study allowed to obtain some interesting results for understanding how arsenic affect the xylem sap flow transport and the mechanism by which growth is enhanced in the presence of heavy metal.

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Section: Introductionmentioning

confidence: 99%

Effect of arsenic absorption on the water‐refilling speed of Pteris cretica

Lee

2010

Microscopy Res & Technique

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“…따라 서 이를 대체하기 위한 공법으로 식물을 이용한 복원기술인 phytoremediation에 대한 관심이 증가하고 있다 (Cunningham et al, 1995;Cunningham et al, 1996;Hong and Cho, 2007;Ju et al, 2011;Ok et al, 2004). Phytoremediation은 중금 속 처리에 대한 소요기간이 길기 때문에 오염의 정도가 심각 한 지역은 적용하기 어려우나 (Ok et al, 2004) 다른 정화공 법에 비해 비용이 저렴하고 친환경적인 장점이 있는 기술이 다 Nagendran et al, 2006;Ok et al, 2004 Jung et al, 2016). …”

Section: 그다음으로는 외국에서 많이 적용하고 있는 원위치 토양세unclassified

Study for Phytostabilization using Soil Amendment and Aster koraiensis Nakai in Heavy Metal Contaminated Soil of Abandoned Metal Mine

Jung¹,

Lee²,

Ji³

et al. 2016

Korean Journal of Soil Science and Fertilizer

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The objectives of this study were to select optimal soil amendments through analysis of heavy metal availability in soil and uptake to Aster koraiensis Nakai for forest rehabilitation of heavy metal contaminated soil of abandoned metal mine. A. koraiensis was cultivated for 6 months at contaminated soil with several soil treatments (bottom ash 1 and 2%, fly ash 1 and 2%, waste lime+oyster 1 and 2%, Acid mine drainage sludge (AMDS) 10 and 20%, compost 3.4%, non-contaminated natural forest soil, and control). The analysis results of heavy metal concentrations in the soil by Mehlich-3 mehthod, growth and heavy metal concentrations of A. koraiensis showed that waste oyster+lime 1% and compost were more effective than the other amendments for phytostabilization. However, it is needed comprehensive review of factors such as on-site condition, slope covering to reduce soil erosion and vegetation introduction from surround forest for revegetation to apply forest rehabilitation.Key words: Abandoned metal mine, Heavy metal, Contaminated soil, Aster koraiensis Nakai, PhytostabilizationHeavy metal concentrations in shoots and roots of Aster koraiensis in the study after 6 months from plating (unit: mg kg -1 ). Treatment

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“…Scientists who explored the rehabilitation of municipal solid waste dumpsites by using a selection of planted vegetation on a landfill, confirm its ability to remove contaminants and to treat leachate. 894 The actual selection of plants and the type of phytoremediation process depend on the type of contaminants to be treated and the nature of the site. 895 Although experts caution that the precise mechanism by which plants stimulate the disappearance of hazardous organics from soil in waste dumps is not fully understood, phytoremediation is a very attractive option for Lagos.…”

Section: Remediating Waste Dumpsmentioning

confidence: 99%

Sustainable groundwater management in Lagos, Nigeria: the regulatory framework

Ogunba

2015

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This doctoral research focuses on groundwater degradation in Lagos, Nigeria.Groundwater is a critically important natural resource in Lagos that is presently troubled by pollution that emanates from solid waste and wastewater. The city generates 10,000 metric tons of waste and 350 million gallons of wastewater daily, all of which are improperly managed and are heavily polluting its groundwater. This direct environmental pollution is aggravated by indirect problems of over-urbanization, and legal and institutional shortcomings. Overurbanization in Lagos has resulted into a monumental population of 21 million people in the tiny city, which generates the enormous quantities of solid waste and wastewater. The population places a tremendous burden on the city's water resources, forcing residents to revert to groundwater which is suffering the plight of pollution, and hence the concern of this research.The pollution problem is worsened by civic apathy to environmental matters, and unresolved by a nascent water sector whose evolving governance structures do not adequately address the multi-dimensional pollution problem. In the final analysis, the absence of holistic and comprehensive groundwater legislation that addresses all these problems challenges the sustainability of this vital resource.The research adopts a cross-disciplinary approach by combining several methodologies: historical legal analysis, important insights from scientific studies and from sociological studies that rationalize the demographical movement to Lagos which is at the root of the pollution problem; field work investigation to confirm the fact, source, and extent of polluted groundwater; and a comparative approach by examining the European Union's legal framework for managing groundwater and waste in order to extract sustainable practices for adoption in Lagos. It concludes with a range of recommendations for incorporation into a legal framework iii that will help to improve the sustainability of the groundwater resource. The study contributes to knowledge by attempting to close a vacuum, which is the paucity of studies that investigate underlying social factors that trigger groundwater pollution, and also by providing broad and holistic recommendations for law reform. It addresses the role of law in remediating the pollution, managing the effects of over-urbanization and overpopulation on groundwater, strengthening institutions, and eliminating legal inadequacies.iv Water, which is composed of both surface and groundwater, is an ancient and fundamental resource which is unarguably indispensable to human life. It is the life force of the planet.2 As a finite resource, national governments, international organizations, and scholars now acknowledge that water is crucial to life, to social development, to poverty alleviation, to health and to economic development. Dependable water supplies contribute to the growth of national Gross Domestic Product (GDP), but lack of water promotes economic stagnation and decline. 3Water is used in the dire...

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Phytoremediation and rehabilitation of municipal solid waste landfills and dumpsites: A brief review

Cited by 120 publications

References 53 publications

Effect of arsenic absorption on the water‐refilling speed of Pteris cretica

Effect of arsenic absorption on the water‐refilling speed of Pteris cretica

Study for Phytostabilization using Soil Amendment and Aster koraiensis Nakai in Heavy Metal Contaminated Soil of Abandoned Metal Mine

Sustainable groundwater management in Lagos, Nigeria: the regulatory framework

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