Review of Nanotechnology for Soil and Groundwater Remediation: Brazilian Perspectives

Thomé, Antônio; Reddy, Krishna R.; Reginatto, Cleomar; Cecchin, Iziquiel

doi:10.1007/s11270-014-2243-z

Cited by 82 publications

(21 citation statements)

References 187 publications

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“…This proliferation in use of nanoparticles has paved their way to increasing occurrence in water sources [203,204]. Nanotechnology is also used widely for water treatment for both groundwater and surface water sources [205,206], but its repercussions are still not well understood [207]. In 2018, the occurrence of nanoparticle size plastics (nanoplastics) were critically reviewed with respect to human health and growing global occurrence in freshwater [208,209].…”

Section: Engineered Nanomaterialsmentioning

confidence: 99%

Irrigation Water Quality—A Contemporary Perspective

Malakar

Snow

Ray

2019

Water

104

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In the race to enhance agricultural productivity, irrigation will become more dependent on poorly characterized and virtually unmonitored sources of water. Increased use of irrigation water has led to impaired water and soil quality in many areas. Historically, soil salinization and reduced crop productivity have been the primary focus of irrigation water quality. Recently, there is increasing evidence for the occurrence of geogenic contaminants in water. The appearance of trace elements and an increase in the use of wastewater has highlighted the vulnerability and complexities of the composition of irrigation water and its role in ensuring proper crop growth, and long-term food quality. Analytical capabilities of measuring vanishingly small concentrations of biologically-active organic contaminants, including steroid hormones, plasticizers, pharmaceuticals, and personal care products, in a variety of irrigation water sources provide the means to evaluate uptake and occurrence in crops but do not resolve questions related to food safety or human health effects. Natural and synthetic nanoparticles are now known to occur in many water sources, potentially altering plant growth and food standard. The rapidly changing quality of irrigation water urgently needs closer attention to understand and predict long-term effects on soils and food crops in an increasingly fresh-water stressed world.

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Section: Engineered Nanomaterialsmentioning

confidence: 99%

Irrigation Water Quality—A Contemporary Perspective

Malakar

Snow

Ray

2019

Water

104

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“…Environmental pollution is one of the greatest problems that the world is facing today (Das et al, 2015). Soils and groundwater may be contaminated by toxic pollutants from either natural or anthropogenic sources at concentrations capable of posing great risk to human health or the environment (Thomè et al, 2015). Nanotechnology has been viewed as potentially providing sustainable solutions to these global challenges related to the protection of soils and water.…”

Section: Nanotechnology For Detection and Remediation Of Environmentamentioning

confidence: 99%

Nanotechnology in agriculture: Opportunities, toxicological implications, and occupational risks

Iavicoli

Leso

Beezhold

et al. 2017

Toxicology and Applied Pharmacology

424

149

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Nanotechnology has the potential to make a beneficial impact on several agricultural, forestry, and environmental challenges, such as urbanization, energy constraints, and sustainable use of resources. However, new environmental and human health hazards may emerge from nano-enhanced applications. This raises concerns for agricultural workers who may become primarily exposed to such xenobiotics during their job tasks. The aim of this review is to discuss promising solutions that nanotechnology may provide in agricultural activities, with a specific focus on critical aspects, challenging issues, and research needs for occupational risk assessment and management in this emerging field. Eco-toxicological aspects were not the focus of the review. Nano-fertilizers, (nano-sized nutrients, nano-coated fertilizers, or engineered metal-oxide or carbon-based nanomaterials per se), and nano-pesticides, (nano-formulations of traditional active ingredients or inorganic nanomaterials), may provide a targeted/controlled release of agrochemicals, aimed to obtain their fullest biological efficacy without over-dosage. Nano-sensors and nano-remediation methods may detect and remove environmental contaminants. However, limited knowledge concerning nanomaterial biosafety, adverse effects, fate, and acquired biological reactivity once dispersed into the environment, requires further scientific efforts to assess possible nano-agricultural risks. In this perspective, toxicological research should be aimed to define nanomaterial hazards and levels of exposure along the life-cycle of nano-enabled products, and to assess those physico-chemical features affecting nanomaterial toxicity, possible interactions with agro-system co-formulants, and stressors. Overall, this review highlights the importance to define adequate risk management strategies for workers, occupational safety practices and policies, as well as to develop a responsible regulatory consensus on nanotechnology in agriculture.

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“…Nanotechnology is an emerging field and covers a wide range of technologies which are presently under the process of development at nanoscale [114]. It plays a major role in the development of innovative methods to produce new products, to substitute existing production equipment and to reformulate new materials and chemicals with improved performance resulting in less consumption of energy and materials and reducing environmental degradations well as enhancing the rate of environmental remediation [45].…”

Section: Advantages Of Nanomaterials In Water Treatmentmentioning

confidence: 99%

Clay nano-adsorbent: structures, applications and mechanism for water treatment

2019

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Nanotechnology plays an important role in current environmental practices for remediation of contaminants in environment. From last few years, nano-clay has found more attention because of its unique characteristics and properties. Clay and clay minerals are very important naturally occurring mineral playing key role in environmental protection. Clay basically originates from raw minerals, having different types of geometry and morphology. These clay minerals have been used in disposal and storage of hazardous chemicals as well as for remediation of contaminated water. In several industries, clay minerals have been used as raw materials for hundreds of industrial applications due to its abundant availability and inexpensive nature. Because of unique properties and high removal efficiency, clay is used as nano-adsorbent in many adsorption processes. Nano-clays act as a promising property enhancer found highly effective and efficient for water purification. The use of clay minerals as adsorbents for adsorption of various hazardous substances like-heavy metals, dyes, antibiotics, biocide compounds, and other organic chemicals has been widely studied by a large number of researchers. In the present review paper, authors highlights the nano-composites and their preparation methods, adsorption mechanism and has compiled the past and current research works carried out by different researchers on innovation in nanoclay, upcoming advancement, and/or mechanism for removal of contaminants by different nanoclays for water purification.

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Review of Nanotechnology for Soil and Groundwater Remediation: Brazilian Perspectives

Cited by 82 publications

References 187 publications

Irrigation Water Quality—A Contemporary Perspective

Irrigation Water Quality—A Contemporary Perspective

Nanotechnology in agriculture: Opportunities, toxicological implications, and occupational risks

Clay nano-adsorbent: structures, applications and mechanism for water treatment

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