Removal of organochlorine pesticides (OCPs) from aqueous solutions using hydrogen peroxide, ultrasonic waves, and a hybrid process

Kida, Małgorzata; Ziembowicz, Sabina; Koszelnik, Piotr

doi:10.1016/j.seppur.2017.10.046

Cited by 58 publications

(31 citation statements)

References 15 publications

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“…Its effect is a higher flow rate of wastewater in sewerage and water courses [4,5]. Their quality deteriorates as well, which is caused by high organic and inorganic pollutions [6]. This results in the need to continuously modernize the system and adapt it to the new hydraulic flow conditions.…”

Section: Introductionmentioning

confidence: 99%

The use of artificial neural networks for analyzing the sensitivity of a retention tank

Pochwat

2018

E3S Web Conf.

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Abstract.Designing retention facilities is a complex engineering process that requires the collection of the detailed hydrological data of a catchment and hydraulic sewerage system. The acquired data are necessary to prepare a model of the retention tank in appropriate software for hydrodynamic modelling. The article shows the results of tests concerning the analysis of the sensitivity of a sewerage model of a rainwater retention tank which may be implemented in this software. The results of tests allowed determining the impact of the individual hydraulic characteristics of the catchment and the sewerage system on the required retention capacity of a tank. A planned analysis is performed based on artificial neural networks and the required data are acquired by hydrodynamic simulations in SWMM 5.1.

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Section: Introductionmentioning

confidence: 99%

The use of artificial neural networks for analyzing the sensitivity of a retention tank

Pochwat

2018

E3S Web Conf.

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“…include endocrine-disrupting compounds such as phytoestrogens (Patisaul and Jefferson 2010), polychlorinated biphenyls (Li et al 2016), polycyclic aromatic hydrocarbons (PAH) (Zhang et al 2016), pesticides (Kida et al 2018), dioxins (Brulport et al 2017), phthalates and plastic ingredients (Dong et al 2018), and natural and synthetic hormones (Ben Fredj et al 2017). These substances are found in wastewater treatment plants and in the natural environment in rivers, lakes, and even oceans (do Nascimento et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Inhibition of growth of Anabaena variabilis population by single and mixed steroid hormones

et al. 2018

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Many contaminants which are toxic and adversely affect living organisms enter surface waters. Among them, there are endocrine compounds such as steroid hormones, which can disrupt the endocrine system causing an adverse effect on the physiology of aquatic organisms. In the literature, there is not enough information about the influence of steroid hormones on phytoplankton growth. Therefore, the aim of this research was to study the effect of estrogens (estrone, 17ß-estadiol, 17-α-ethinylestradiol, and estriol), progestagens (progesterone, 5-pregnen-3b-ol-20-one, and levonorgestrel), and androgens (testosterone) on the growth of the cyanobacterium Anabaena variabilis. To our best knowledge, the chronic toxicological effects of hormones on cyanobacteria are explored for the first time. ), while estrone, estriol, and levonorgestrel showed no significant effect on the growth of this cyanobacterium. Hormone mixtures have been found to be more toxic than single substances and exposure to them leads to the potentiation of toxicity. The EC 50 after 14 days of the test duration for the mixed steroid hormones were 45.14, 37.00, and 89.46 mg L −1. This research provides a basic understanding of hormone toxicity to aquatic organism, such as cyanobacteria, and asserts a more comprehensive view on ecological risk evaluation.

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“…During the past several years, ultrasound has been applied effectively as an emerging advanced oxidation process (AOP) for a wide variety of pollutants in wastewater treatment [12][13][14]. A growing number of studies have demonstrated that ultrasound irradiation results in a rapid and effective decomposition of phthalates [15], pesticides [16,17] phenols [18], chlorinated compounds [19], and pharmaceuticals [20] in aqueous solution. The main advantage is that the ultrasound process does not require added chemicals, oxidants or catalysts, and does not generate additional waste streams as compared with other processes (ozonation and adsorption).…”

Section: Introductionmentioning

confidence: 99%

Sonochemical Formation of Hydrogen Peroxide

Ziembowicz

Kida

Koszelnik

2017

The 2nd International Electronic Conference on Water Sciences

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Abstract:The work detailed in this study utilized 20 kHz ultrasonic irradiation as a mechanism of hydrogen peroxide production. The effects of various operating parameters were investigated, including ultrasonic intensity; solution pH; source of water; initial dibutyl phthalate concentration and the presence of hydrogen peroxide. During the irradiation, the H2O2 concentration was monitored. The results indicate that H2O2 is produced by cavitation during ultrasonic irradiation. An increase in ultrasonic intensity increases the amount of hydrogen peroxide produced. The initial pH of the solution does not affect the efficiency of processes substantially. H2O2 is regarded as one of the most effective additives enhancing the sonochemical production of hydroxyl radicals and hydrogen peroxide. Above a 0.1 mM dose of H2O2, the amount of H2O2 formed decreased as the concentration of H2O2 increased. Thus, the concentration of hydrogen peroxide plays a crucial role in the extent to which the effectiveness of the combined process is enhanced. The negative effect on reactions of the presence of additional components in the reaction solution was also confirmed. It was therefore concluded that the experimental evaluation of optimum parameters of hybrid processes is a matter of importance.

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Removal of organochlorine pesticides (OCPs) from aqueous solutions using hydrogen peroxide, ultrasonic waves, and a hybrid process

Cited by 58 publications

References 15 publications

The use of artificial neural networks for analyzing the sensitivity of a retention tank

The use of artificial neural networks for analyzing the sensitivity of a retention tank

Inhibition of growth of Anabaena variabilis population by single and mixed steroid hormones

Sonochemical Formation of Hydrogen Peroxide

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