Water solution acidity change caused by cold plasma treatment

An agroindustrial complex and agriculture as a whole play a strategically significant role for national food security of any country. Introduction of innovative technologies combining achievements of several branches of human knowledge could lead to agro production efficiency increase. In particular, cold plasma production technology, which is widely used in various industries, can be successfully applied by industries dealing with living systems. Aseptic and catalytic properties of such plasma are well-known. Cold plasma has an enormous potential if properly and efficiently applied in agriculture. This article describes the investigations confirming the fact that the acidity of water solutions changes when it is treated by cold plasma. Investigations of electrochemical treatment of water solutions are briefly described, in particular, equipment and technique of the experiment. Experimental data show that water solutions’ acidity grew from pH 6,93 to 6,51 with varying treatment parameters (control value pH 7,6). The mean power of treatment was found to significantly affect the acidity while initial sparking voltage does not produce such effects. These factors do not affect the rate of acidity change with time. The experimental results allow us to make a conclusion that further investigations of changes in water solutions treated by cold plasma are necessary.