PT - JOURNAL ARTICLE AU - Németh-Katona, Judit TI - The Environmental Significance of Bioindicators in Sewage Treatment DP - 2010 Oct 31 TA - Acta Mechanica Slovaca PG - 92--97 VI - 14 IP - 2 IS - 13352393 AB - The presentation is about the significance of the bioindicators concerning environmental protection within the process of cleaning sewage. The existence of one or multi-celled organisms indicates the presence, condition or absence of certain parts of the water cleaning process. This way the optimal operation of the purifying appliances can be checked continuously and controlled in an environment friendly way.