Evaluation of Different Types and Amounts of Amendments on Soil Cd Immobilization and its Uptake to Wheat

Zhou, Chao; Yuan, Hang; Ning, Chuanchuan; Li, Shuailin; Xia, Zhuqing; Zhu, Mengmeng; Ma, Qiang; Yu, Wantai

doi:10.1007/s00267-020-01287-4

Cited by 10 publications

(13 citation statements)

References 59 publications

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“…Soil toxic metal contamination has become a serious concern in many regions worldwide 1 , 2 . According to a report by He et al 3 , globally, more than 50% of areas with polluted soils are contaminated with heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Biological effects of biochar and zeolite used for remediation of soil contaminated with toxic heavy metals

Głąb

Gondek

Mierzwa–Hersztek

2021

Sci Rep

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Biochar and zeolite are widely used in the remediation of soil contaminated with toxic heavy metals. However, the interaction of these amendments and their effects on grass productivity have not been comprehensively summarized. The aim of this study was to investigate the biological effects of zeolite and biochar used as soil amendments in the process of remediating soil contaminated with Cd, Pb and Zn. In a pot experiment, the following treatments were applied: zeolite, biochars produced at temperatures of 350 °C and 550 °C, mixtures of biochars and zeolite, and a control treatment without any amendments. The soil amendments were tested on two grass species: tall fescue (Festuca arundinacea Schreb.) and cocksfoot (Dactylis glomerata L.). The root morphometric parameters and aboveground production were determined in 2017 and 2018.Higher biomass production was observed in the tested grasses in the treatments with zeolite alone (0.229 kg DM m−2) or mixed with the biochars (0.239 kg DM m−2) than in control treatment (0.029 kg DM m−2). Zeolite used in contaminated soil significantly affected root biomass and root morphology parameters. Zeolite application resulted in significantly higher root biomass (2.30 mg cm−3) and root length (76.61 cm cm−3) than those in the treatments without zeolite (0.29 mg cm−3 and 6.90 cm cm−3). Biochar as a soil amendment did not affect most root morphometric parameters. The application of biochars only slightly reduced the root diameter of cocksfoot. The root diameter of tall fescue was similar in all treatments (0.075 mm) except the control (0.063 mm) and biochar 550 treatments (0.067 mm), in which slightly thinner roots were observed.

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Section: Introductionmentioning

confidence: 99%

Biological effects of biochar and zeolite used for remediation of soil contaminated with toxic heavy metals

Głąb

Gondek

Mierzwa–Hersztek

2021

Sci Rep

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“…Ammonium-based fertilizers like DAP can potentially acidify the system, because ammonium is readily oxidized to nitrate in high soil pH, thereby releasing protons [44,45]. Phosphorus in the system with the application of DAP might have been able to form Pb/Cd/Ni/Cr-phosphate insoluble salts that minimize the availability of the respective HMs in the system [3,16]. Soil organic matter specifically humic acid has been of particular interest in this study because of the tendency of transition metal cations to form stable and strong complexes with organic ligands [46,47].…”

Section: Discussionmentioning

confidence: 99%

“…Their applicability is mainly concentrated on reducing the bioavailability, solubility, or extractability of metals. In this context, ameliorants such as lime, sodium sulphide (SS), di-ammonium phosphate (DAP), humic acid have been studied successfully in a vast number of studies [15,16]. However, their applicability to reclaim fly ash in situ at dumping sites to make the sites productive has never been studied.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Capability of Chemical Ameliorants to Reduce the Bioavailability of Heavy Metals in Bulk Fly Ash Contaminated Soil

et al. 2021

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In-situ rehabilitation of fly ash at dumping sites has rarely been addressed for crop production due to growth-related constraints, largely of heavy metal (HM) contamination in soils and crops. Current communication deals with a novel approach to identify a suitable management option for rejuvenating the contaminated soils. In this background, a 60-days incubation experiment was conducted with different fly ash-soil mixtures (50 + 50%, A1; 75 + 25%, A2; 100 + 0%, A3) along with four ameliorants, namely, lime (T1), sodium sulphide (T2), di-ammonium phosphate (T3), and humic acid (T4) at 30 ± 2 °C to assess the ability of different fly ash-soil-ameliorant mixtures in reducing bio-availability of HMs. Diethylenetriaminepentaacetic acid (DTPA)-extractable bio-available HM contents for lead (Pb), cadmium (Cd), nickel (Ni), and chromium (Cr) and their respective ratios to total HM contents under the influence of different treatments were estimated at 0, 15, 30, 45, and 60 days of incubation. Further, the eco-toxicological impact of different treatments on soil microbial properties was studied after 60 days of experimentation. A1T1 significantly recorded the lowest bio-availability of HMs (~49–233% lower) followed by A2T1 (~35–133%) among the treatments. The principal component analysis also confirmed the superiority of A1T1 and A2T1 in this regard. Further, A1T1 achieved low contamination factor and ecological risk with substantial microbial biomass carbon load and dehydrogenase activity. Thus, liming to fly ash-soil mixture at 50:50 may be considered as the best management option for ameliorating metal toxicity. This technology may guide thermal power plants to provide the necessary package of practices for the stakeholders to revive their contaminated lands for better environmental sustainability.

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“…The chemical methods bene ts of organic and inorganic amendments have been widely demonstrated in remediating soils [10]. Among these amendments, limestone is cheap and effective to improve soil acidity, and effectively immobilizing Cd in soils [11] and thus to reduce Cd uptake in plants [9]. For example, Zhou et al [9] found that the application of limestone signi cantly decreased Cd accumulation of wheat grain as a result of increase soil pH and decrease Cd availability.…”

Section: Introductionmentioning

confidence: 99%

“…Different strategies have been employed for remediating Cd-contaminated soil to decrease Cd uptake by crops, such as chemical, physical, and biological remediation techniques [9]. Chemical methods have been identi ed as a potential stock for remediation of Cd-polluted soils compared to other techniques due to their low cost of remediation and little effect on crops growth.…”

Section: Introductionmentioning

confidence: 99%

Effects of application of rice husk biochar and limestone on cadmium accumulation in wheat under glasshouse and field conditions

Niu

Fang

et al. 2022

Preprint

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Cadmium (Cd) has seriously threatened the safe production of food crops. Passivator amendments are commonly used to control the soil Cd availability. Yet, few studies are tested to explore the effect of the combination of various amendments. Here, we investigated the effects of different amendments (2% rice husk biochar, 2% limestone, and 1% rice husk biochar +1% limestone) on the growth and Cd accumulation of wheat in pot and field experiments. The results showed that under the low soil Cd condition, the maximum increase of soil pH (1.83) was found in the limestone treatment compared to CK in pot experiment. Compared with the CK，the treatment of rice husk biochar decreased soil Cd availability and grain Cd content by about 25% and 31.2%, respectively. In contrast, under high soil Cd condition, the highest soil pH was observed in limestone, while the lowest soil Cd availability and grain Cd concentrations were found in rice husk biochar treatment. In the field experiment, the treatment of 1% rice husk biochar +1% limestone caused a significant increase of soil pH by about 28.2%, whereas the treatment of 2% rice husk biochar reduced soil Cd availability and grain Cd content by about 38.9% and 38.5% compared to the CK. Therefore, rice husk biochar showed great potential to reduce Cd availability and ensure safe food production.

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Evaluation of Different Types and Amounts of Amendments on Soil Cd Immobilization and its Uptake to Wheat

Cited by 10 publications

References 59 publications

Biological effects of biochar and zeolite used for remediation of soil contaminated with toxic heavy metals

Biological effects of biochar and zeolite used for remediation of soil contaminated with toxic heavy metals

Assessing the Capability of Chemical Ameliorants to Reduce the Bioavailability of Heavy Metals in Bulk Fly Ash Contaminated Soil

Effects of application of rice husk biochar and limestone on cadmium accumulation in wheat under glasshouse and field conditions

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