Removal of α- and β- Endosulfan from Soils by Using Natural and Synthetic Surfactants

Ortíz, Irmene; Ávila-Chávez, Marco; Torres, Luis G.

doi:10.9734/ajee/2018/40009

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Though it has not been widely explored in soil remediation studies, the selection of SLES as a surfactant in this study was based on its availability, its commercial low price (2.07 USD/kg (Assawadithalerd and Phasukarratchai 2020)) and its low toxicity (1995 mg/kg, acute oral toxicity for rats (Walker et al 1967)). In addition, good results were obtained when SLES solutions were used to the removal of pesticides (Ortiz et al 2018), cadmium and zinc (Assawadithalerd andPhasukarratchai 2020), anddiesel (Hernández-Espriú et al 2013) from contaminated soils.…”

Section: Methodsmentioning

confidence: 99%

Archives of Environmental Protection

Aouf,

Dounit

2022

View full text Add to dashboard Cite

Soil contamination with hydrocarbons represents a worldwide problem, especially for oil-rich countries. soil contamination becomes inevitable due to different accidents, aboveground spills, and leakage, threatening the fauna and flora. The purpose of this study is to remediate One-year aged contaminated soil with crude oil (23490 mg/kg) using the fluidization technique in a laboratory-scale column. Free water and surfactant solutions were used for washing at different operating conditions. The efficiency of the method was evaluated by the calculation of the total petroleum hydrocarbons (TPH) removal ratio. Without the addition of surfactant, the cleaning operation was not sufficiently efficient, especially at room temperature where the removal ratio was only about 18%. Raising the liquid temperature leads to some improvement where the TPH removal ratio reached 49% at 50°C. With the use of solutions containing Sodium Laureth Sulfate (SLES) as a surfactant, an important enhancement of removal ratio was noted, along with an important reduction in operating time, washing solution volume, and energy consumption. The use of alternatively working/stopping operation mode contributes to the improvement of efficiency. TPH removal ratios up to 99% were obtained under some favorable conditions. This research shows encouraging results for expanding towards the industrial level with clean and sustainable resources.

show abstract

Section: Methodsmentioning

confidence: 99%

Archives of Environmental Protection

Aouf,

Dounit

2022

View full text Add to dashboard Cite

show abstract

“…Organic micropollulants include pesticides, pharmaceutical drugs, industrial chemicals and personal care products, and can have serious environmental and health effects including infertility and reproductive mutations in aquatic organisms, and neurological diseases and cancer in humans . Current extraction methods include bioremediation (the use of microorganisms to consume pollutants), physical remediation (clays, activated carbon, zeolites and surfactants) and chemical remediation (oxidation, UV treatment and supercritical extraction) . While these methods are effective, large‐scale application is challenging due to high cost and soil erosion .…”

Section: Sequestration Of Organic Micropollutantsmentioning

confidence: 99%

Polymer sequestrants for biological and environmental applications

Archer

Hall

Thompson

et al. 2019

Polymer International

View full text Add to dashboard Cite

Toxic contaminates have profound consequences on both health and the environment. Consequently, effective approaches for addressing the effects of these toxicants are paramount. Here, we review recent progress in developing polymeric sequestrants for biological toxins, heavy metals and organic micropollutants. Polymers have several advantages as sequestration materials, including relatively low cost and high affinity for target compounds. As a result a number of polymer-based toxin-mitigation applications have been investigated. Naturally occurring toxins may be neutralized with polymers capable of binding and eliminating them from the body. Heavy metal contamination from mining operations, energy and industrial sources may also be mitigated with appropriate chelating polymers, both for environmental remediation and in chelation therapy for metal poisoning. Micropollutants such as pesticides from agriculture and polycyclic aromatic hydrocarbons from combustion processes may also be isolated using polymeric materials. Each of these applications illustrates the capabilities of polymers for eliminating toxic contaminants, thereby facilitating greater health and sustainability.

show abstract