Pyrozhenko Y. Improving the efficiency of wastewater treatment in the brewing process by implementing informative control methods

The object of the study is the wastewater treatment process of breweries, implementing a combined method based on a treatment scheme that involves magnetization of wastewater with consideration of comparative preliminary informative control of regulatory parameters of beer samples. The subject of the study is addressing the issues of improving the efficiency of wastewater treatment in small-scale breweries and reducing the impact of anthropogenic load on the surrounding natural environment in the areas where breweries are located. The dissertation research is dedicated to finding ways to enhance the efficiency of wastewater treatment in breweries located in residential areas by implementing a rational combined method of wastewater treatment in mini-breweries and improving the corresponding technological scheme. This method involves magnetizing wastewater based on preliminary informative electromagnetic monitoring of the normative parameters of beer samples. A method for the simultaneous determination of the static characteristics of the investigated model magnetic fluid (water-based) has been proposed, specifically the specific electrical conductivity. χt, a rational ratio of wastewater to magnetic fluid (WW:MF) has been found, WW: MF = 8,7 × 10-3:1, which is recommended for the treatment of brewery wastewater. The presented results indicate the effectiveness of the proposed combined treatment method for brewery wastewater in terms of meeting the standards for municipal wastewater discharge. Specifically, the pH value decreases by 34,6% as a result of the treatment, the COD is reduced by 7,14 times, the BOD5 is reduced by 1,52 times, the suspended solids are reduced by 1,52 times, calcium cations (Ca2+) are reduced by 1,53 times, magnesium cations (Mg2+) are reduced by 1,51 times, the total hardness (dH) is reduced by 1,64 times, and the carbonate hardness (CH) is reduced by 1,86 times. It should be noted that the introduction of the magnetic fluid also allows for the sedimentation of finely dispersed impurities in the turbid wastewater of microbreweries. Key words: wastewater, anthropogenic factor, composition of brewery effluents, cleaning efficiency, aqueous media, measurement, pollutants, physicochemical parameters, ecological safety, temperature pauses, electromagnetic cleaning, combined purification method, technological scheme, cleaning quality.