Elimination of organochlorine pesticides from water by a new activated carbon prepared from Phoenix dactylifera date sto
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RESEARCH ARTICLE
Elimination of organochlorine pesticides from water by a new activated carbon prepared from Phoenix dactylifera date stones Rayane Sahmarani 1,2 & Sopheak Net 2
&
Chaza Chbib 1 & Moomen Baroudi 1 & Baghdad Ouddane 2
Received: 23 July 2020 / Accepted: 27 October 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract This work focused on the characterization of activated carbon (AC) prepared by pyrolysis-chemical activation with phosphoric acid (60%) from date stones derived from three categories of date palm Phoenix dactylifera (Ajwa, Anbari, Khudri), and on its feasibility of elimination of organochlorine pesticides (OCPs) in water samples. The obtained results showed that the threeproduced AC date stone had developed a porous structure, large specific surface area, and acidic property. Due to the high SBET (> 1200 m2/g), Ajwa stones activated coal was considered as the best AC that can be used for the adsorption of environmental contaminants. The effects of several parameters such as the Ajwa AC dose, the time of contact, the initial concentration of pesticides, and the pH were evaluated. The results showed that the adsorption balance of organochlorine pesticides on this AC was reached after a contact time of 60 min at an optimal pHzpc equal to 2. In addition, 0.4 g of AC was the best quantity found to retain the largest quantity of pesticides while considering the economic part. Keywords Activated carbon . Phoenix dactylifera . Date stone . Adsorption . OCPs . Water . Pesticides elimination
Introduction A great range of pesticides have been widely used in modern agriculture practices to kill and manage the different pests including insects, plant pathogens and weeds, fungi, mollusks, birds, nematodes, and bacteria, as well as increase the food production and crops protection. Pesticides can be also classified according to the chemical structure into many classes such as organochlorines, organophosphorus, and organonitrogen; one of the most important is organochlorine compounds (OCPs). Therefore, 14 OCPs with high persistence in the environment have been classified as persistent organic pollutants (POPs) (SC 2004). They apt to accumulate along the food chain and organisms thereby causing harmful effects to the Responsible Editor: Tito Roberto Cadaval Jr * Sopheak Net [email protected] 1
Université Libanaise, Faculté de santé publique section III, Laboratoire des Sciences de l’Eau et de l’Environnement (L.S.E.E), Tripoli, Lebanon
2
Université de Lille, Equipe Physico-Chimie de l’Environnement, LASIR UMR CNRS 8516, Bâtiment C8, 59655 Villeneuve d’Ascq Cedex, France
being lives (Erdogrul et al. 2005; Krieger 2001; Sudaryanto et al. 2006; Wang et al. 2018). They can cause carcinogenetic and mutagenic effects, immune system dysfunction, endocrine-disrupting and neurodegenerative diseases, respiratory effects, reproductive problems, birth defects, and developmental toxicity (Chbib et al. 2018, 2020; Forest Health Protection, USDA Forest Service 2006; Gangemi et al.
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