Use of Sorption of Copper Cations by Clinoptilolite for Wastewater Treatment

Abstract

This paper from the field of environmental chemistry offers an innovative use of sorbents in the treatment of waste industrial water. Various industrial activities, especially the use of technological fluids in machining, surface treatment of materials, ore extraction, pesticide use in agriculture, etc., create wastewater containing dangerous metals that cause serious health problems. This paper presents the results of studies of the natural zeolite clinoptilolite as a sorbent of copper cations. These results provide the measurement of the sorption kinetics as well as the observed parameters of sorption of copper cations from the aquatic environment to the clinoptilolite from a promising Slovak site. The effectiveness of the natural sorbent is also compared with that of certain known synthetic sorbents.

Application of natural zeolite in wastewater treatment: A review

“…Analcime, chabazite, clinoptilolite, erionite, mordenite and phillipsite are the most common natural zeolites. One of the most investigated zeolite in wastewater treatment is clinoptilolite [21][22][23]. In general, chemical formula of zeolites is given as in the following equation [1]:…”

“…The ability of zeolite to be regenerated and its reuse is very important for the environment because this prevents the generation of new waste material [44]. Many researchers are dealing with the application of natural zeolites in removing metal ions from wastewater [22,23,44,45,46]. Additionally, clinoptilolite has been investigated as adsorbent for the removal of dyes, phenols and phenol derivatives from aqueous solutions, as summarized in Table 3.…”

Forecasting an Vibration by Monitoring the Dynamics of Changes Its Precursors of Various Physical Nature

“…This problem fully applies to the earthquake forecast. The forecasting methods adopted in seismology, based on a comparison of the monitored parameters current values with their standard, do not lead to the desired result [Kotsarenko 2004-2007, Ismaguilov 2003, Li 2013, Odintsov 2006, Panda 2014-2019, Valicek 2016, Macala 2009, Pandova 2018, Balara 2018, Monkova 2013, Gombar 2013, Bielousova 2017, Dyadyura 2017, Duplakova 2018, Krehel 2013, Flegner 2019, Markulik 2016, Mrkvica 2012, Modrak, 2019, Chaus 2018, Pollak 2020, Olejarova 2017, Rimar 2016, Zaborowski 2007, Straka 2018a,b, Michalik 2014. The desire to expand the prognostic signs list, amounting to about three hundred, of course, does not solve the problem [Prattes 2008, Takayama 1990, Takla 2011, Tavares 2011, Yanben 2004, Fraser-Smith 2008, Jusoh 2011, Straser 2014].…”

Clinoptilolite and iron sorption/desorption under multiple pH conditions: Testing a substrate for passive treatment of acidic, iron‐rich solutions

“…Passive treatment systems may include reactive substrates such as limestone, biochar, or zeolites that induce metal sorption and/or mineral precipitation (metal capture) (Alcolea et al, 2012;Burakov et al, 2018;Costello, 2003;Johnson & Hallberg, 2005;Motsi et al, 2009;Obiri-Nyarko et al, 2014;Pandová et al, 2018;RoyChowdhury et al, 2015;Sandlin, Langman, Waynant, et al, 2020;Skousen et al, 2017). Solution acidity and proton competition for sorption sites determines the effectiveness of a reactive substrate for metal capture during passive treatment (Lee & Wilkin, 2010;Santomartino & Webb, 2007;Watzlaf et al, 2000;Ziemkiewicz et al, 1997).…”

“…Zeolite minerals are hydrated aluminosilicate minerals [M n+ (x/n) (AlO 2 ) x (SiO 2 ) y (H 2 O) m ] that are naturally abundant and have a sieve-like cage and pore structure, a large surface area, and a strong residual surface charge that is ideal for sorption of transition metals (Akimkhan, 2012;Busca, 2017;Weitkamp, 2000;Yuna, 2016). Zeolite minerals consist of a three-dimensional framework of (Si,Al)O 4 tetrahedra that form ring cages surrounded by nano-to micro-scale pores and channels (Ćurković et al, 1997;Doula et al, 2002;Englert & Rubio, 2005;Holub et al, 2013;Inglezakis et al, 1999;Motsi et al, 2009;Pandová et al, 2018;Sprynskyy, 2009). Isomorphous substitution of Al 3+ for Si 4+ results in a negative surface charge that is balanced by metals bound in the cage and pore structure (Ćurković et al, 1997;Holub et al, 2013;Motsi et al, 2009).…”