WAYS OF INTENSIFICATION OF METHODS OF CLEANING MULTICOMPONENT UNDERGROUND WATER
Urgency of the research. The existing stations of deferrization built mainly by the technology of simplified aeration and filtration are unable to remove from water dissolved organic, ferrum-organic compounds, ammonium nitrogen, and also mineral complexes of ferrum in natural weakly acidic waters with low alkaline reserve. Besides, the existing stations do not foresee the stabilizing processing of filtrate with the aim of supplying the population with water of drinking quality. Target user. The determination of ways to intensify existing methods of treating underground multi-component waters. Actual scientific researches and issues analysis. To study the comprehensive method of biophysico-chemical purification of weak acidic underground waters with low alkaline reserve. To show the advantage of the biochemical method of treatment over standard physico-chemical methods. Uninvestigated parts of general matters defining. The analysis carried out of the present stage of tachnologies of water treatment for underground waters testifies to their variability concerning ferrom compounds in neutral waters with normal alkaline reserve under the absence of anthropogenic factors and inhibitors of oxidization (ammonium nitrogen, phenols, humin acids, dissolved organic compounds, hydrogen sulphide, aggressive carbon dioxide). Then as with the presence of the said ingradients existing technologies cannot render to water proper qualities. The statement of basic materials. To factors of the exterior influence upon the acceleration of processes of underground waters treatment we are to refer: the impact of the action of constant magnetic field (CMF) of various stress on the development of microorganisms consortiums in bioreactors; the impact of the action of hydrodynamic cavitation on the destruction of complicated organic compounds; the impact of the action of different doses of reagents both as activizers (Na2CO3) and inhibitors on the processes of biochemeical deferrization, the correction of values of biocarbonate alkalidity, pH-Eh of medium; the stabilization processing of filtrate. In this work the influence is considered of acivizers and inhibitors on the process of the biochemical treatment of weak acidic ferrum containing waters with low kaline reserve. Conclusion. It is determined that the use of the biochemical method allows to carry out the process of deferrization of underground weak acidic waters under the concentration of dissolved oxygen 0,8-1,0 mg/dm3 and of dissolved ferrum up to 40 mg/dm3. It is proved that the use of the solution of soda ash increases the rate of biochemical reactions and the use of polyhexamethylene guanidine just the opposite hinders the process. The suggested technology permits to carry out the purification of weak acidic (pH 5,5-6,5) underground waters with low (up to 2,0 mole/dm3) alkaline reserve from ferrom compounds (up to 30 mg/dm3), manganese (up to 0,5 mg/dm3), ammonia nitrogen (up to 2,5 mg/dm3), free carbon dioxide (up to 80 mg/dm3), dissolved organic compounds (up to 7 mgO2/dm3).