Organic amendments for in situ immobilization of heavy metals in soil: A review

Gao, Jun; Han, Haoxuan; Gao, Chuyue; Wang, Yuhao; Dong, Bin; Xu, Zuxin

doi:10.1016/j.chemosphere.2023.139088

Cited by 41 publications

(9 citation statements)

References 146 publications

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“…From these studies (Gao et al 2023; P. Wu et al 2023) report that the effective composting of cow dung and green waste composts applied to metalcontaminated soils reduced the mobility of heavy metals in soils and their bioavailability to lettuce (Lactuca sativa) plants. However, most of these studies clearly show that the quantities of both organic and calcareous soil improvers used are very high.…”

Section: Introductionmentioning

confidence: 99%

Reducing the risks associated with the ingestion of vegetables grown on soils contaminated with trace metal elements through the application of soil amendments: Results of experiments in Lubumbashi/Democratic Republic of the Congo.

Katebe,

Colinet,

Kyalamakasa

et al. 2024

Preprint

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The expansion of mining companies in the province of Haut-Katanga in general, and in the city of Lubumbashi in particular, is one of the main causes of the very worrying environmental problems facing the city's inhabitants. These problems include contamination of agricultural and residential soils, river and well water, the atmosphere and vegetables. This study evaluates the effectiveness of organocalcareous soil improvers applied to heavy metal-contaminated soils in reducing the mobility and bioavailability of heavy metals. Trials were conducted under glass at the Faculty of Agronomic Sciences, University of Lubumbashi, using a randomized factorial design with four replications. Treatments included four plant species (Brassica chinensis, Amaranthus vulgaris, Beta vulgaris and Brassica carinata), five levels of amendment (D0: no amendment; D1: 150g sawdust; D2: 150g chicken droppings; D3: 75g sawdust and 15g agricultural lime; D4: 75g chicken droppings and 15g agricultural lime), and three types of urban market gardens (Chem-chem; Manoah Kinsevere and Kashamata). The results reveal that the soil and plant biomass of four vegetables are contaminated with metals, with the daily consumption index of vegetables produced on the soils of the Kashamata garden with low copper contamination exceeding the limits authorized by the World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO) for daily vegetable consumption for a person of 60 kilograms body weight. The daily consumption index was not determined due to insufficient biomass linked to high soil contamination, inhibiting plant growth for the market gardens of Manoah Kinsevere and Chem-Chem, soils moderately and highly contaminated with copper, respectively. However, these vegetables remain unfit for human consumption, underlining the need to adopt new soilless production techniques such as conventional hydroponics or bioponics in areas heavily impacted by anthropogenic activities.

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Section: Introductionmentioning

confidence: 99%

Reducing the risks associated with the ingestion of vegetables grown on soils contaminated with trace metal elements through the application of soil amendments: Results of experiments in Lubumbashi/Democratic Republic of the Congo.

Katebe,

Colinet,

Kyalamakasa

et al. 2024

Preprint

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“…These hazardous metals' ongoing presence in the environment increase their threat. Heavy metals can have long-term detrimental effects on both human health and the environment since they can never be totally eliminated, just transformed from one oxidation phase or organic compound to another [6]. Since the soil is the foundation of both agricultural and natural ecosystems, as well as the point where the crust of the earth and the atmosphere meet, it is vulnerable to heavy metal inputs from a diversity of sources [7].…”

Section: Introductionmentioning

confidence: 99%

Current Status of Biotechnological Approaches to Enhance the Phytoremediation of Heavy Metals in India—A Review

Barathi,

Lee,

Venkatesan

et al. 2023

Plants

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Rising waste construction, agricultural actions, and manufacturing sewages all contribute to heavy metal accumulation in water resources. Humans consume heavy metals-contaminated substances to make sustenance, which equally ends up in the food circle. Cleaning of these vital properties, along with the prevention of new pollution, has long been required to evade negative strength consequences. Most wastewater treatment techniques are widely acknowledged to be costly and out of the grasp of governments and small pollution mitigation businesses. Utilizing hyper-accumulator plants that are extremely resilient to heavy metals in the environment/soil, phytoremediation is a practical and promising method for eliminating heavy metals from contaminated environments. This method extracts, degrades, or detoxifies harmful metals using green plants. The three phytoremediation techniques of phytostabilization, phytoextraction, and phytovolatilization have been used extensively for soil remediation. Regarding their ability to be used on a wide scale, conventional phytoremediation methods have significant limitations. Hence, biotechnological attempts to change plants for heavy metal phytoremediation methods are extensively investigated in order to increase plant effectiveness and possible use of improved phytoremediation approaches in the country of India. This review focuses on the advances and significance of phytoremediation accompanied by the removal of various harmful heavy metal contaminants. Similarly, sources, heavy metals status in India, impacts on nature and human health, and variables influencing the phytoremediation of heavy metals have all been covered.

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“…Heavy metals (HMs) pose a serious risk to soil, water, the atmospheric environment, human health, and crop yields [1,2], which has attracted many researchers to monitor and control HM pollution [3,4] and develop alternative safe treatment methods for HMcontaminated wastes and industrial by-products [5,6]. Due to the biological toxicity of HMs, i.e., bioaccumulation in living organisms and natural non-biodegradability [7], it is generally accepted that HM pollution negatively affects the sustainable development of society [8].…”

Section: Introductionmentioning

confidence: 99%

“…Fossil fuel combustion, mining, industrial production, transportation, agricultural activities, metallurgy, landfills, waste dumps, sewage sludge, and runoffs are the main "man-made" sources of HMs. As the mining industry supports most of the energy and industrial activities, it is considered to be one of the most harmful sources of waste contaminated with HMs [5]. In Europe, there are more than 500,000 sites contaminated by HMs coming from mining waste [15].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Immobilization of Heavy Metals in MKPC-Based Mortar—Experimental Assessment

Pavlík,

Záleská,

Pavlíková

et al. 2023

Materials

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Heavy metal contamination, associated with the increase in industrial production and the development of the population in general, poses a significant risk in terms of the contamination of soil, water, and, consequently, industrial plants and human health. The presence of ecotoxic heavy metals (HMs) thus significantly limits the sustainable development of society and contributes to the deterioration of the quality of the environment as a whole. For this reason, the stabilization and immobilization of heavy metals is a very topical issue. This paper deals with the possibility of the simultaneous immobilization of heavy metals (Ba2+, Pb2+, and Zn2+) in mortar based on magnesium potassium phosphate cement (MKPC). The structural, mechanical, and hygric parameters of mortars artificially contaminated with heavy metals in the form of salt solutions were investigated together with the formed hydration products. In the leachates of the prepared samples, the content of HMs was measured and the immobilization ratio of each HM was determined. The immobilization rate of all the investigated HMs was >98.7%, which gave information about the effectiveness of the MKPC-based matrix for HM stabilization. Furthermore, the content of HMs in the leachates was below the prescribed limits for non-hazardous waste that can be safely treated without any environmental risks. Although the presence of heavy metals led to a reduction in the strength of the prepared mortar (46.5% and 57.3% in compressive and flexural strength, respectively), its mechanical resistance remained high enough for many construction applications. Moreover, the low values of the parameters characterizing the water transport (water absorption coefficient Aw = 4.26 × 10−3 kg·m−2·s−1/2 and sorptivity S = 4.0 × 10−6 m·s−1/2) clearly demonstrate the limited possibility of the leaching of heavy metals from the MKPC matrix structure.

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Organic amendments for in situ immobilization of heavy metals in soil: A review

Cited by 41 publications

References 146 publications

Reducing the risks associated with the ingestion of vegetables grown on soils contaminated with trace metal elements through the application of soil amendments: Results of experiments in Lubumbashi/Democratic Republic of the Congo.

Reducing the risks associated with the ingestion of vegetables grown on soils contaminated with trace metal elements through the application of soil amendments: Results of experiments in Lubumbashi/Democratic Republic of the Congo.

Current Status of Biotechnological Approaches to Enhance the Phytoremediation of Heavy Metals in India—A Review

Simultaneous Immobilization of Heavy Metals in MKPC-Based Mortar—Experimental Assessment

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