Effects of combined amendments on heavy metal accumulation in rice (Oryza sativa L.) planted on contaminated paddy soil

Zhou, Hang; Zhou, Xin; Zeng, Min; Liao, Bo-Han; Liu, Li; Yang, Wen-Tao; Wu, Yan-ming; Qiu, Qiong-Yao; Wang, Yingjie

doi:10.1016/j.ecoenv.2014.01.001

Cited by 198 publications

(41 citation statements)

References 37 publications

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“…It is worth noting that TCLP extractable metals were much higher than CaCl 2 extractable metals, indicating that Cd and Cu could be well immobilized under weak acidic conditions (CaCl 2 extraction fluid, pH=5.6) for the presence of combined amendments; however, a part of the immobilized metals still released under strong acidic conditions (TCLP extraction fluid, pH=2.91). This result was in line with Zhou et al (2014). Metal bioavailability is closely connected to pH (Houben et al 2012), and the increase of substrate pH (Fig.…”

Section: Bioavailability Of Heavy Metals In Cultivated Bagsupporting

confidence: 87%

“…Total concentrations of heavy metals cannot indicate the mobility and bioavailability of metals in soil due to the complex distribution of metals among different chemical species (Zhou et al 2014), which is same as cultivated bag. To determine the heavy metal bioavailability in cultivation substrate of P. cornucopiae, CaCl 2 and TCLP extractable metals were measured.…”

Section: Bioavailability Of Heavy Metals In Cultivated Bagmentioning

confidence: 99%

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Alleviating the toxicity of heavy metals by combined amendments in cultivated bag of Pleurotus cornucopiae

Liu

Guo

Jia

et al. 2015

Environ Sci Pollut Res

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The substrate of mushroom can be polluted with heavy metals and subsequently contaminate mushroom, which requires alternative solutions to reduce associated environmental and human health risks. The effects of amendment application on alleviating Cu and Cd toxicities to Pleurotus cornucopiae were investigated in a cultivated bag experiment conducted with the naturally contaminated substrate. Addition of combined amendments (sodium bentonite, silicon fertilizer, activated carbon, and potassium dihydrogen phosphate) increased the P. cornucopiae biomass and substrate pH. Cu and Cd concentration in P. cornucopiae as well as the available Cu and Cd in substrate reduced for the presence of amendments, and the silicon fertilizer had the biggest inhibition on metal uptake. The smallest amount of Cu and Cd in P. cornucopiae was only 30.8 and 5.51% of control, respectively. Moreover, application of amendments also decreased malondialdehyde (MDA) and hydrogen peroxide (H2O2) level in metal-stressed mushroom by 4.38-53.74 and 8.90-58.42% relative to control, respectively. The decreased oxidative stress could well contribute to the growth of P. cornucopiae, and the elevated substrate pH might lead to the lower metal availability, thus resulting in the reduction of metal accumulation in mushroom. These above results suggest that application of combined amendments in mushroom substrate could be implemented in a general scheme aiming at controlling metal content in P. cornucopiae.

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Section: Bioavailability Of Heavy Metals In Cultivated Bagsupporting

confidence: 87%

Section: Bioavailability Of Heavy Metals In Cultivated Bagmentioning

confidence: 99%

Alleviating the toxicity of heavy metals by combined amendments in cultivated bag of Pleurotus cornucopiae

Liu

Guo

Jia

et al. 2015

Environ Sci Pollut Res

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“…However, elevated heavy metal concentrations in soil may cause toxic effects on soil organisms and can affect soil ecosystem functioning [1,2]. Recently, with the rapid development of industrialization and economic, indiscriminate waste disposal practices have led to significant buildup in soils of a wide range of metals, and many health authorities are becoming increasingly concerned about the effects of heavy metals on environment and human health [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Immobilization of Cu(II) and Zn(II) in simulated polluted soil using sulfurizing agent

Wang

Wei

et al. 2015

Chemical Engineering Journal

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“…The toxicity characteristic leaching procedure (TCLP) is also the method of choice accepted by the USEPA for determining the amounts of potential toxic materials that could potentially leach from the soil and fly ash samples by 0.57 % glacial acetic (USEPA, 1992). TCLP was also followed in various studies (Xenidis et al, 2003;Zhou et al, 2014) to monitor the release of trace metals from contaminated soil by extracting 5 g of sample with 100 mL of extractant on a rotary extractor at 30 rpm for 18 h. The extracts are filtered and processed for further analysis. Table 5 depicts the range of metals released by various reagents with values below and above the general regulatory limits given by different countries which are also called soluble threshold limit concentration.…”

Section: Trace Metal Extraction Proceduresmentioning

confidence: 99%

“…They include mineral acids (e.g., 1N HCl or 1N HNO 3 ), salt solutions (e.g., 0.1M CaCl 2 ), buffer solutions (e.g., 1M NH 4 OAc) and chelating agents (e.g., DTPA) which help in estimation of the bioavailable fraction of trace elements in soils (van der Watt et al, 1994). In a study, Zhou et al (2014) prepared the extracts by suspending soil in 1M MgCl 2 solution in 1:10 ratio w/v and shaking at 150 rpm at room temperature for 2 h followed by separating the extracts by centrifuging at 4000 rpm for 10 min and filtering out the solid. Phytoavailable metals in FA and soil are also determined by DTPA extraction protocol (Lindsay and Norvell, 1978 3 for leaching test and pH dependent leaching test respectively.…”

Section: Trace Metal Extraction Proceduresmentioning

confidence: 99%

Revegetation of Fly Ash ‒ A Review With Emphasis on Grass-Legume Plantation and Bioaccumulation of Metals

Maiti¹

2016

Appl Ecol Env Res

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Abstract. Uninterrupted generation of fly ash by the coal based thermal power plants and its dumping has lead to steady encroachment of useful land in India. The deleterious effects of fly ash on the nearby environment are inevitable due to its fine texture and presence of toxic metals. Thus, proper revegetation programme of the sites are highly desirable due to their continuance in being the part of landscape. This paper conglomerates all the issues which should be taken into account to prevent groundwater contamination and increase phytostabilization of metals. An insight to the past and the prevailing restoration scenario will help in selecting of plant species for biomass production. Primarily, an integrated approach towards revegetation is necessary which comprises native and exotic grass-legume species, readily available composts, green manure, and mulches. The paucity of studies in relation to the long term changes in fly ash due to vegetation is to be permeated through regular analysis of substrate nutrient status, extent of nutrient loss, bioavailable toxic metals, in restoration sites. The range of methodologies and indexes discussed here will benefit the future management approaches of fly ash with emphasis on phytoremediation of trace metals, development of aesthetically pleasant landscape and productivity.

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Effects of combined amendments on heavy metal accumulation in rice (Oryza sativa L.) planted on contaminated paddy soil

Cited by 198 publications

References 37 publications

Alleviating the toxicity of heavy metals by combined amendments in cultivated bag of Pleurotus cornucopiae

Alleviating the toxicity of heavy metals by combined amendments in cultivated bag of Pleurotus cornucopiae

Immobilization of Cu(II) and Zn(II) in simulated polluted soil using sulfurizing agent

Revegetation of Fly Ash ‒ A Review With Emphasis on Grass-Legume Plantation and Bioaccumulation of Metals

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