Bioremediation of DDT‐contaminated soil: enhancement by seaweed addition

Kantachote, Duangporn; Naidu, Ravi; Williams, Brian; McClure, N.; Megharaj, Mallavarapu; Singleton, Ian

doi:10.1002/jctb.1032

Cited by 29 publications

(8 citation statements)

References 20 publications

(15 reference statements)

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“…A similar lack of correlation resulted also when DDT content was compared to the amount of organic matter in the soil sample (data not shown). Humic acids can increase the apparent solubility of DDT (Carter and Suffet 1982 ), but amending the soil with high quantities of organic matter was found to significantly retard DDT biodegradation, possibly due to binding of DDT to dissolved organic carbon (Kantachote et al 2004 ). Further research on the complex interactions between soil physical–chemical properties, its microbiome, including the microbial functional degradation potential, and the crops’ physiological contribution to the soil environment in relation to the possibilities to degrade DDT is thus needed to understand the behaviour of DDT residues (Sun et al 2015 ), particularly under climate change conditions (Gaur et al 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Malusà

Tartanus

Danelski

et al. 2020

Environmental Management

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The analysis of 142 agricultural soil samples collected in organic farms across Poland with the intent to evaluate the level of DDT contamination resulted in more than 80% of the soils containing DDT. The ΣDDT (sum of all metabolites and isomers) concentration ranged between 0.005 and 0.383 mg/kg ΣDDT, with an average value of 0.064 mg/kg ΣDDT. However, the majority of plant samples collected from the crops growing on the sampled soils did not contain detectable DDT residues. The high DDT pollution levels detected in samples from four voivodeships (regions) among those monitored have been hypothesised to be linked to horticultural productions occurring to the sampled fields and typical of those regions, particularly in big-sized farms, during the period of DDT application, as well as the number of pesticides landfills present in these voivodeships. The elaboration of the o,p′-DDT/p,p′-DDT and DDT/(DDE + DDD) ratios to appraise the source or the period of contamination suggested that the contamination originated from past use of DDT rather than from impurities of more recent applications of other formulated substances. Such outcome thus suggests that the risk of contamination of organic products is likely derived from general environmental pollution levels rather than from the use of unauthorised substances in organic farming productions. Data from a trial with artificial contamination of soils indicated that using the DDT/(DDE + DDD) ratio in the presence of a low level of contamination could be less reliable than in highly contaminated soils.

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Section: Resultsmentioning

confidence: 99%

Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Malusà

Tartanus

Danelski

et al. 2020

Environmental Management

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“…Transport of DDT to surface water and sediment systems is often associated with erosion of contaminated soils [90]. Regardless of the success observed for DDT remediation of soil in Superfund sites (Aberdeen Pesticides Dumps in North Carolina, Fort Wainwright in Alaska, Montrose and Del Amo Superfund sites in California, and others) by using various technologies (such as white rot fungi bioremediation, enzyme degradation, mediated electrochemical oxidation, photochemically enhanced microbial degradation) [36,53,55,98,109], translation of these successes to an aquatic environment is challenging and is likely not practical. The focus of this paper is to evaluate successful remediation options for DDT in the sediment-water environment.…”

Section: Introductionmentioning

confidence: 99%

Remediation of DDT and Its Metabolites in Contaminated Sediment

Chattopadhyay

Chattopadhyay²

2015

Curr Pollution Rep

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Chlorinated pesticides and chlorinated organics can be transformed or partially degraded in sediments under appropriate environmental conditions. Although 1,1,1-trichloro-2,2-bis[p-chlorophenyl]ethane (DDT) is very persistent in the environment, 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE), a degradation product of DDT, is generally the constituent most widely detected in the environment and DDE is also resistant to further biotransformation. DDT and its degradation products (DDTR) may be transported from one medium to another by sorption, bioaccumulation, dissolution, or volatilization. In sediments, DDT strongly adheres to suspended particles, but once metabolized, DDE, the primary product, is slightly soluble in water. The major migration process for DDTR in sediment-water systems is sorption to sediment or other organic matter and the primary distribution route is the transportation of the particulates to which the compound is bound. Understanding the fate and transport of DDTR in the natural environment based on its specific characteristics is important in determining appropriate remediation option. Common DDT-contaminated sediment remediation options include dredging, capping, and natural attenuation. Sediment washing and phytoremediation have also been used in contaminated sites. Dredging is the most common sediment remediation option to remove the contaminated benthic sediments but often suffers from technical limitations like incomplete removal, unfavorable site conditions, sediment resuspension, and disposal issues. Capping is an in situ, lowcost remediation option for immobilization of DDT in several contaminated sediment sites. Natural or anthropogenic materials containing reactive ingredients, as distinct from a conventional sand or gravel cap, involve placing reactive materials as part of the cap matrix to increase sorption, and to enhance chemical reactivity with DDTR, or accelerate degradation. Natural attenuation can treat the DDT-contaminated sediment, but the time frame for complete remediation may be relatively long. Addition of suitable co-metabolites and acclimatized microorganisms to DDTR-contaminated sediment and alteration of sediment-water micro-environment by manipulating soil pH, moisture content, and other chemical conditions may result in degradation of DDTR associated with sediments at rates faster than the natural attenuation rate.

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“…1,1,1‐Trichloro‐2,2‐bis(4‐chlorophenyl)ethane (or DDT for short) is a typical organochlorine and was mainly applied in controlling agricultural pests in 1940s . It is highly lipid soluble and could be able to bioconcentrate and biomagnify in various tropic levels, resulting in different toxic effects.…”

Section: Introductionmentioning

confidence: 99%

“…1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane (or DDT for short) is a typical organochlorine and was mainly applied in controlling agricultural pests in 1940s. [1] It is highly lipid soluble and could be able to bioconcentrate and biomagnify in various tropic levels, resulting in different toxic effects. DDT and its metabolites have induced significant accumulations in soil, sediment, water and air, [2] and brought a greatly growing threat to the safety of environment [3] due to its high toxicity.…”

Section: Introductionmentioning

confidence: 99%

Monodispersed Zerovalent Iron Nanoparticles Decorated Carbon Submicrospheres for Enhanced Removal of DDT from Aqueous Solutions

Kang

Wang

et al. 2019

ChemistrySelect

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A simple route is presented to fabricate the nano zero‐valent iron/carbon sphere (nZVI/CSs) composites via Fe2+ ion‐adsorption and then reduction reaction on the pre‐prepared CSs. The nZVI/CSs composites with monodispersed nZVI particles are successfully fabricated. The monodispersed nZVI particles with 30–50 nm in size are uniformly decorated on the sub‐microsized CSs with about 250 nm in diameter. These nZVI/CSs composites are of enough high specific surface area (about 55.8 m2⋅g−1) and good ferromagnetism. Importantly, such nZVI/CSs have exhibited significantly stronger and faster removal performances to the organic pollutants compared with the pure nZVI and pure CSs, in addition to the easy separation from solutions. Typically, in the DDT [or 1,1,1‐trichloro‐2, 2‐bis(4‐chlorophenyl)ethane] aqueous solution with 10 ppm, more than 95% of DDT content can be removed within 140 min after adding 1.0 g⋅L−1 nZVI/CSs. The capacity of removal is up to 15.6 mg⋅g−1, remarkably larger than the previously reported one (2.5 mg⋅g−1) by carbon nanotubes. This is attributed to the synergistic effects from the CSs’ high adsorptivity and nZVI's strong reducibility. This study not only provides a new candidate material for the treatment of the DDT‐polluted environments, but also deepens understanding the process of DDT removal.

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Bioremediation of DDT‐contaminated soil: enhancement by seaweed addition

Cited by 29 publications

References 20 publications

Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Remediation of DDT and Its Metabolites in Contaminated Sediment

Monodispersed Zerovalent Iron Nanoparticles Decorated Carbon Submicrospheres for Enhanced Removal of DDT from Aqueous Solutions

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