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Kinetic study of oil-containing wastewater treatment with the use of natural sorbents

Tleuova Saltanat T., Userbayeva Banu A., Tleuov Alibek S., Yeskendirova Marina M., Yakubova Raissa R., Kerimbayeva Kulyash Z.

Journal of Water and Land Development

2021

no. 49

252--258

The study has investigated the technical characteristics of a number of sorption materials (natural mineral) and the possibility of their use for the purification of surface and wastewater from oil and oil products. At the first step, regularities of the process of purification of oily waters have been established taking into account the processes of filtration and sorption. After that, the sorption capacity of the sorbents has been estimated, and the factors influencing it analysed. As a final step, the optimal conditions for the sorption process have been selected depending on the conditions and nature of purification. Results indicated that the maximum purification degree has been reached at the concentration of 500 mg∙dm–3 and temperature of 20°С.

Materiały sorpcyjne wykorzystywane w maskach ochronnych

Nowicka Paulina, Orciuch Marta, Orylska Sandra, Rosa Sandra, Sołtyszewska Dominika, Łukasik Natalia

Analityka : nauka i praktyka

2021

nr 1

48--51

Obecna sytuacja epidemiologiczna spowodowała dynamiczny rozwój badań w zakresie efektywnych sorbentów wykorzystywanych w maskach ochronnych. Coraz więcej uwagi poświęca się nie tylko filtrom pełniącym rolę ochrony pasywnej, ale także materiałom o działaniu przeciwdrobnoustrojowym.

Selection of Sorption Material for Tests of Pesticide Permeation Through Protective Clothing Fabrics

Krzemińska S., Nazimek T.

International Journal of Occupational Safety and Ergonomics

2004

Vol. 10, No. 4

387--397

The paper presents the results of studies on selecting a solid sorption material for absorbing liquid crop protection agents which permeate samples of protective clothing fabrics. The sorption materials were investigated and selected with an assumption that they should have a high recovery coefficient for biologically active substances, used as active ingredients in crop protection agents, at a presumed, acceptably high level. The selected substances were determined with a gas chromatograph equipped with an electron capture detector (dichlorvos, cypermethrin and 2,4-D) and a nitrogen-phosphorus detector (carbofuran). The tests demonstrated that polypropylene melt-blown type unwoven cloth had high recovery coefficients for all 4 active ingredients proposed for the study. The highest recovery coefficient, -.97, was obtained for carbofuran. The recovery coefficients obtained for the 3 remaining substances were lower: .89 for cypermethrin and 2,4-D, and .84 for dichlorvos.