Potential of Soil Amendments and Jatropha Curcas Plant in the Remediation of Heavy Metals Contaminated Agricultural Land

The heavy metal pollution induced by agricultural land use change has attracted great attention. In this study, the divergent response of bioavailability of heavy metals in rhizosphere soil to different...

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Optimal Solutions for the Use of Sewage Sludge on Agricultural Lands

Water ◽

10.3390/w13050585 ◽

2021 ◽

Vol 13 (5) ◽

pp. 585

Author(s):

Catalina Iticescu ◽

Puiu-Lucian Georgescu ◽

Maxim Arseni ◽

Adrian Rosu ◽

Mihaela Timofti ◽

...

Keyword(s):

Heavy Metals ◽

Sewage Sludge ◽

Agricultural Production ◽

Agricultural Land ◽

Chemical Characteristics ◽

Optimal Solutions ◽

Physico Chemical ◽

Agricultural Areas ◽

The Impact ◽

Made In

The use of sewage sludge in agriculture decreases the pressure on landfills. In Romania, massive investments have been made in wastewater treatment stations, which have resulted in the accumulation of important quantities of sewage sludge. The presence of these sewage sludges coincides with large areas of degraded agricultural land. The aim of the present article is to identify the best technological combinations meant to solve these problems simultaneously. Adapting the quality and parameters of the sludge to the specificity of the land solves the possible compatibility problems, thus reducing the impact on the environment. The physico-chemical characteristics of the fermented sludge were monitored and optimal solutions for their treatment were suggested so as to allow that the sludge could be used in agriculture according to the characteristics of the soils. The content of heavy metals in the sewage sludge was closely monitored because the use of sewage sludge as a fertilizer does not allow for any increases in the concentrations of these in soils. The article identifies those agricultural areas which are suitable for the use of sludge, as well as ways of correcting some parameters (e.g., pH), which allow the improvement of soil quality and obtained higher agricultural production.

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Impact of metals bioleaching on the nutrient value of biological nutrient removal biosolids

Water Science & Technology ◽

10.2166/wst.1999.0292 ◽

1999 ◽

Vol 39 (6) ◽

pp. 175-181 ◽

Cited By ~ 4

Author(s):

Abdallah Shanableh ◽

Pushpa Ginige

Keyword(s):

Heavy Metals ◽

Nutrient Removal ◽

Organic Contaminants ◽

Agricultural Land ◽

Land Application ◽

Biological Nutrient Removal ◽

Environment Protection ◽

Toxic Heavy Metals ◽

Beneficial Use ◽

Nutrient Value

The biosolids industry in Australia is evolving around the beneficial use of biosolids as a resource. Phosphorus rich biosolids from biological nutrient removal (BNR) facilities are highly desirable for land application. However, the accumulation of toxic heavy metals and industrial organic contaminants may render the biosolids unsuitable for land application. The presence of toxic heavy metals has been identified by Local Authorities in Australia as a major constraint limiting the beneficial use of biosolids. The potential of off-site contamination due to the migration of nutrients is also a major concern especially when applying biosolids to acidic agricultural land. Accordingly, the relevant environment protection and conservation agencies are involved in either developing or finalising guidelines to control the beneficial use of biosolids products. Metals bioleaching is a process achieved through bio-acidification. Bio-acidification of biosolids prior to land application can be used to dissolve and remove a significant fraction of the heavy metals content of the product. However, the process also reduces the nutrients content of the resource. Bio-acidification of Loganholme (Queensland) BNR biosolids dissolved 76% of the total phosphorus and 38% of the TKN. The heavy metals solubilisation results reached 50% for Cr, 79% for Ni, 45% for Zn, 24% for Cu, 30% for Cd, and 82% for Pb.

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Bioavailability of heavy metals in soils amended with sewage sludge

Canadian Journal of Soil Science ◽

10.4141/s01-072 ◽

2002 ◽

Vol 82 (4) ◽

pp. 433-438 ◽

Cited By ~ 39

Author(s):

M T Morera ◽

J. Echeverría ◽

J. Garrido

Keyword(s):

Heavy Metals ◽

Sewage Sludge ◽

Agricultural Land ◽

Organic Matter Content ◽

Dry Weight ◽

Matter Content ◽

Alkaline Soils ◽

Toxic Heavy Metals ◽

Heavy Metals Bioavailability ◽

Heavy Metals In Soils

The recycling of sewage sludge to agricultural land results in the slow accumulation of potentially toxic heavy metals in soils. A greenhouse experiment was conducted to determine the bioavailability of Cu, Ni, Pb and Zn applied to soils in urban anaerobically stabilized sewage sludge. The soils were Lithic Haplumbrept (Lh), Calcixerollic Xerochrept (Cx1 and Cx2) and Paralithic Xerorthent (Px). Sunflower plants (Helianthus annuus L) were grown in the soils following amendment with the sludge. The addition of sewage sludge markedly increased the average dry weight of the plants in the soils that had lower yields without sludge addition (Lh, Cx2, and Px). The acid pH of the Lh soil favoured the bioavailability of Zn from sewage sludge. The bioavailability of Cu was greater in the alkaline soils than in the acidic soil (Lh), which can be attributed to the high organic matter content of the Lh soil which complexes Cu and impairs its uptake by the plants. The concentration of metals in the plants increased with the sewage sludge dose. The effect of the soil type on the metal concentration in plants was greater that the effect of the dose. Key words: Soils, sewage sludge, heavy metals, bioavailability, sunflower

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State of Heavy Metals Pollution of Flooded Agricultural Land in the North Part of Republic of Srpska

Агрознање ◽

10.7251/agren1601019p ◽

2017 ◽

Vol 17 (1) ◽

pp. 19

Author(s):

Tihomir Predić ◽

Petra Nikić Nauth ◽

Bojana Radanović ◽

Alen Predić

Keyword(s):

Heavy Metals ◽

Soil Contamination ◽

Agricultural Land ◽

Total Content ◽

Soil Samples ◽

Available Phosphorus ◽

The North ◽

North Part ◽

Grid Points ◽

Phosphorus And Potassium

This paper presents the results of the research of soil contamination in flooded area located at the confluence of Bosna and Sava rivers. The sampling was performed according to a network of points Etrs89 reference European Network based on grid points of 500 m x 500 m. The total number of soil samples was 31 and 13 samples of sediment-mud. In the soil samples and sediment-mud samples various parameters were analyzed: pH H2O and 1 M KCl, humus (method by Tjurin), and the readily available phosphorus and potassium (AL method). The interpretation of total content of heavy metals in the soil was conducted according to Dutch Soil Remediation Circular (2009). The samples were analyzed for the total content of heavy metals: Pb, Cd, Cr, Ni, Zn, Cu (aqua regia digestion, AAS) and the elevated concentrations of Ni. However, Ni content in mud was from 240.5 mg/kg to 294.5 mg/kg, in soil it was from 128.9 mg/kg to 452.1 mg/kg. All mud samples were alkaline, and 79% of soil samples were alkaline and of neutral reaction. The analysis indicated that the flood in May 2014 was not caused by soil contamination with heavy metals, which however contributed to the increase of the overall content of these elements in the soil.

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Impact Imposed by Urbanization on Soil Heavy Metal Content of Lake Wetland and Evaluation of Ecological Risks in East Dongting Lake in China

10.21203/rs.3.rs-339557/v1 ◽

2021 ◽

Author(s):

Yang Lin ◽

Kai Luo ◽

Zilin Su ◽

Yang Wu ◽

Wei Xiao ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Land Use ◽

Metal Content ◽

Agricultural Land ◽

Research Area ◽

Dongting Lake ◽

Heavy Metal Content ◽

Ecological Risks ◽

Positive Correlation

Abstract The urbanization is regarded as the major factor related to human activities that may interfere with the natural ecosystem. In this study, we have selected the wetland of East Dongting Lake as the research area. We have collected 180 soil samples (within the range of 0–20 cm, and 20cm-40cm), and we have measured the contents of their physicochemical properties (including salinity, pH value, soil particle composition, soil organic carbon, nitrate nitrogen and rapidly available phosphorus) as well as heavy metal elements (including As, Hg, Cd, Pb, Ni and Cr). We have adopted the methods of multivariate statistical analysis and inverse distance weighted (IDW) interpolation, so as to to reveal the sources and distribution characteristics of heavy metal content in soil in the research area. By adopting the potential ecological risk index (PERI) method proposed by Hakanson, we intend to assess the PERI values of heavy metals. Our research findings have shown that: (1) 8 sorts of heavy metals have shown positive correlation with each other. As, Hg and Zn have shown a significantly positive correlation with SOC (P < 0.01); As, Ni, Cr and Zn have shown a significantly positive correlation with AP (P < 0.01); As and Pb have shown a significantly positive correlation with Clay (P < 0.01); whereas Hg and Zn have shown a significantly negative correlation with Silt (P < 0.01); As and Pb have shown a significantly negative correlation with Sand (P < 0.01). (2) During urbanization, the elements of Cd, Ni, As, Hg and Pb might be enriched due to agricultural and industrial activities, whereas the use of fertilizers and pesticides constitute one of the major factors contributing to the increase of Cd and Pb contents in soil. (3) Influenced by the varying land patterns and with exception to Cu, the Fe-normalized concentrations have shown significant variations among different types of land use (P < 0.05). Specifically, there is a significantly higher level of Cd, Zn, Pb and Hg contents in the agricultural land than other types of land use, whereas there is a slightly higher level of heavy metal content in the mudflats than that in the grassland. In addition, the content of heavy metals in woodland remains relatively stable, and with exception to As, the content of heavy metals in woodland is the lowest among the five types of land. (4) The average value of the comprehensive PERI in heavy metals amounts to 555.03, representing a strong degree of ecological risks. Specifically, the proportion of sampling points of Cd that have a high level of ecological risks amounts to 36.51%, which is the primary element contributing to heavy metal pollution in the region, especially in the agricultural land.

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HYDROCHEMISTRY OF THE PYANJ TRANSBOUNDARY RIVER UPSTREAM, MIDDLE AND DOWNSTREAM AND THE CRITERION ITS USE FOR IRRIGATION

NEWS of National Academy of Sciences of the Republic of Kazakhstan ◽

10.32014/2021.2518-170x.16 ◽

2021 ◽

Vol 445 (1) ◽

pp. 114-120

Author(s):

I. Sh. Normatov ◽

V.V. Goncharuk ◽

N.A. Amirgaliev ◽

A.S. Madibekov ◽

A.I. Normatov

Keyword(s):

Heavy Metals ◽

Water Quality ◽

Water Samples ◽

Alkali Metals ◽

Alkaline Earth ◽

Maximum Permissible Concentration ◽

Agricultural Land ◽

Transboundary River ◽

Formation Zone

The water quality of the transboundary Pyanj River in the formation zone and along the riverbed before merging with another tributary of the transboundary Amu Darya River-the Vakhsh River was studied. The water quality on the upstream river corresponds to the very soft class (> 1.5 mmol/dm3) and in the middle and the downstream to the soft class (1.5-3.0 mmol/dm3). At the upper, middle and lower reaches of the Pyanj river the concentration of alkaline earth exceeds alkali metals (Ca2+ + Mg2+> Na+ + K+) at HCO3- > SO42- + Cl- and according to the Handa classification they are characterized by temporary rigidity. To assess the criterion of applicability of the Pyanj river water for irrigation the coefficient of sodium adsorption (SAC) was calculated for water samples from the upstream (Khorog), middle (Darvaz) and the downstream (Lower Pyanj) of the Pyanj river that were equal to 0.88; 1.07; 1.71, respectively. The SAC values for all water samples (from the upper, middle and lower reaches) of the Pyanj river indicate their good qualities for irrigation of agricultural land. The concentration of heavy metals in the Pyanj river is significantly lower than the maximum permissible concentration (MPC).

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Morphological and molecular identifications of three native arbuscular mycorrhizal fungi isolated from the rhizosphere of Elaeis guineensis and Jatropha curcas in Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d221128 ◽

2021 ◽

Vol 22 (11) ◽

Author(s):

Maria Viva Rini ◽

Fitri Yelli ◽

Darwin Leonardo Tambunan ◽

Inggar Damayanti

Keyword(s):

Arbuscular Mycorrhizal Fungi ◽

Molecular Analysis ◽

Jatropha Curcas ◽

Mycorrhizal Fungi ◽

Morphological Analysis ◽

Agricultural Land ◽

Elaeis Guineensis ◽

Arbuscular Mycorrhizal ◽

Fungal Colonization ◽

Morphological Studies

Abstract. Rini MV, Yelli F, Tambunan DL, Damayanti I. 2021. Morphological and molecular identifications of three native arbuscular mycorrhizal fungi isolated from the rhizosphere of Elaeis guineensis and Jatropha curcas in Indonesia. Biodiversitas 22: 4940-4947. Molecular analysis has been widely used to provide more accurate identification within arbuscular mycorrhizal fungi (AMF) species than identification based on morphology. However, morphological analysis is essential for a basic preliminary of classification studies. Therefore, a study is needed to complete the identification of AMF isolates through morphological and molecular analyses. This research used three AMF isolates, namely MV 5, MV 17, and MV 18, which were isolated from Indonesian agricultural land. Spore-based taxonomy (shape, size, color, ornamentation, PVLG, and Melzer’s reaction) and fungal colonization on roots of maize trap plants were employed for the morphological studies. AMF species identification was performed using molecular analysis through nested-Polymerase Chain Reaction (PCR) to amplify a fragment of SSU rRNA followed by sequencing and phylogenetic tree construction. Morphological analysis showed that MV 5 had spores borne from the neck of the sporiferous saccule, MV 17 was found to have a bulbous suspensor without a germination shield, and MV 18 had spores borne from subtending hyphae. The SSUR rRNA analysis revealed that MV 5, MV 15, and MV 18 were identified as Acaulospora longula, Gigaspora margarita, and Glomus etunicatum, respectively. Both morphological and molecular methods demonstrated reliable and consistent results that complement AMF taxonomy studies.

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Evaluation of wild plants as lead (Pb) and cadmium (Cd) accumulators for phytoremediation of contaminated rice fields

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d210520 ◽

2020 ◽

Vol 21 (5) ◽

Author(s):

Nuril Hidayati ◽

Dwi Setyo Rini

Keyword(s):

Heavy Metals ◽

Plant Growth ◽

Plant Species ◽

Biomass Production ◽

Agricultural Land ◽

Translocation Factor ◽

Rice Fields ◽

Wild Plants ◽

Acorus Calamus ◽

Cost Constraints

Abstract. Hidayati N, Rini DS. 2020. Assessment of plants as lead and cadmium accumulators for phytoremediation of contaminated rice field. Biodiversitas 21: 1928-1934. Heavy metals contamination in agricultural land becoming a serious problem since this causes declining in agriculture production and quality and thus food safety. Meanwhile, conventional efforts for remediation of the contaminated agricultural lands have not been widely implemented due to high-cost constraints. A low-cost technology that can be applied in contaminated sites is phytoremediation. This technique is based on the fact that plants have the ability to extract and accumulate heavy metals. This research aimed to study the potentials of some plant species as accumulators for phytoremediation in rice fields contaminated by heavy metals of lead (Pb) and cadmium (Cd). Six selected accumulator plant species, namely Colocasia sp., Ipomoea fistulosa Mart. ex Choisy, Eichhornia crassipes (Mart.) Solms, Hymenachne amplexicaulis (Rudge) Nees), Saccharum spontaneum L., and Acorus calamus L., were tested in in-situ field to identify the performance of the plants as accumulators for Pb and Cd. Parameters observed were plant growth and biomass production, and the accumulation of Pb and Cd in plants which is formulated as: bioconcentration factor (BCF) to indicate concentration ratio of metal in plant to soil, and translocation factor (TF) to indicate metal transportation ratio of shoot to root. The results showed that plants with the highest growth rate under contaminated conditions were E. crassipes, A. calamus, and H. amplexicaulis. The highest value of BCF for Pb accumulation was recorded in the shoot of H. amplexicaulis and E. crassipes and in the root of H. amplexicaulis and A. calamus, whereas the highest value of TF for Pb was observed in E. crassipes, S. spontaneum, and H. amplexicaulis. Meanwhile, the highest value of BCF for Cd in the shoot and in the root was observed in Colocasia sp and H. amplexicaulis whereas the highest value of TF for Cd was identified in A calamus and Colocasia sp. With regards to the performance of plant growth, biomass production, and accumulation of Pb and Cd, it is suggested that three plant species, namely E. crassipes, A. calamus, and H. amplexicaulis are considered as potential Pb and Cd accumulators for phytoremediation of contaminated rice fields. Our findings suggest that some plants can produce high biomass and absorb high contaminants while other plants cannot, implying that plants respond differently to different environmental conditions. Therefore continuous research is required to obtain the best plant species for phytoremediation.

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Investigation upon the Edible Snail’s Potential as Source of Selenium for Human Health and Nutrition Observing its Food Chemical Contaminant Risk Factor with Heavy Metals

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Agriculture ◽

10.15835/buasvmcn-agr:4060 ◽

1970 ◽

Vol 66 (2) ◽

Author(s):

Adrian TOADER-WILLIAMS ◽

Nadezhda GOLUBKINA

Keyword(s):

Heavy Metals ◽

Agricultural Land ◽

Helix Pomatia ◽

Selenium Concentration ◽

Food Product ◽

Human Consumption ◽

Snail Species ◽

Agricultural Activity ◽

Lead And Cadmium ◽

Terrestrial Snails

Being much appreciated all over the world for their high nutritional values, escargots or terrestrial snails are farmed in many countries. Within the last few years, snail farming started to become a very popular activity in Romania too. It represents an ecological type of agricultural activity that can also be certified as biological, organic farming if the soil’s conditions and the technology are as such. Extensive amount of research offers details on the physiology of the edible snail species as well as regarding their biochemical content and their nutritional value. No much research reflects snail’s ability to bioaccumulate selenium. In the same time, a lot of research demonstrated the snail’s ability to accumulate contaminants such as heavy metals. Using fluorimetric analysis, we investigated selenium accumulation in meat and shell of edible terrestrial snails Helix pomatia and Eobania vermiculata Muller gathered from different regions of Moldova Republic, Ukraine and Russia. The meat selenium concentration in terrestrial snails reflects the ability of those invertebrates to accumulate high selenium contents. Based on the intake recommendations, snails can be a very good source of selenium for human consumption. Depending upon the soil mineral content and level of contamination, the snails will accumulate large quantities of heavy metals such as lead and cadmium, therefore making the snails a very high-risk food product. Therefore, it is very important a careful selection of the agricultural land designated for snail farming. Additives containing selenium may be a way to supplement snail’s diet.

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