Cleaning of Effluents from Ions of Heavy Metals as Display of Environmentally Responsible Activity of Modern Businessman

Abstract

This work is dedicated to the development of scientific technologies of sewage water clarification of different industrial enterprises from chrome and nickel ions through adsorption by bentonite from Cherkasy field under dynamic conditions. The perspective and efficiency of application of bentonite clays for treatment of sewage water are confirmed by their advantages over other sorbents, that is: they win in accessibility, cost, and possibility of regeneration and multiple usages. The studies proved the expediency of bentonite clays usage for treatment of sewage water from chrome (III), zinc (ІІ) and nickel(II) ions. The static activities were determined and isotherms of adsorption of nickel, zinc and chrome ions were built. Deposition by gravity was chosen as the most optimal method reset of spend sorbent. Dosage of flocculants allows accelerating the process and increasing the degree of deposition. The basic parameters of the precipitation process of the used sorbent were established. The technological schemes of drain water purification from heavy metal ions contamination were developed; in addition to the following sedimentation and regeneration of sorbents.

Regularities of Adsorption of Α-Oxypropionic Acid By Natural Zeolite

“…The issue of reducing the microbial count under the action of cavitation is also debatable. The authors [15,16] indicate the selectivity of zeolites for organic acids. There are data in the literature on the use of adsorption methods for wastewater treatment of dairy enterprises [9,12].…”

“…It is known that zeolites have the ability to adsorb ions not only by the mechanism of physical adsorption, but also by the mechanism of ion exchange and manifest themselves as ion exchangers. The literature describes the sorption processes, gives the isotherms of adsorption of various substances on zeolites and other aluminosilicates [15,16]. In our previous works, we reported that α-oxypropionic acid is well adsorbed by zeolite [17].…”

Estimation of Input of Unintentionally Produced Persistent Organic Pollutants into the Air Basin of the Odessa Industrial-and-Urban Agglomeration

“…Real-time monitoring of air pollution [Chugai et al, 2020] and surface watercourses [Odnorih et al, 2020;Sakalova et al, 2019] and scientifically grounded analysis of the data of this monitoring is a prerequisite for developing a strategy of management and technical measures to ensure environmental safety territories. To a large extent, this applies to the Odessa Industrial-and-Urban Agglomeration (next -Odessa agglomeration).…”

Assessing the Impact of the Motor Transport Enterprises on the State of Urban Ecosystems (with the Example of Activity of the Kremenchug Motor Transport Enterprise, Ukraine)

“…Monitoring of pollution of all environment components , Odnorih et al, 2020, Sakalova et al, 2019 is the basis for the assessment of environmental hazard degree and development of the strategies to minimize it. Regarding air pollution, it should be noted that the intensive growth in the number of road transport observed in Ukraine in the last decade contributes, on the one hand, to the economic development of the country, and on the other hand, is accompanied by a negative impact on urban ecosystems and human health.…”