Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vitukinvest VizminoesegvedelmifiledCriticalVitukinvest Vizminoesegvedelmi
Priority to HU354691ApriorityCriticalpatent/HUT69485A/en
Publication of HU913546D0publicationCriticalpatent/HU913546D0/en
Publication of HUT69485ApublicationCriticalpatent/HUT69485A/en
Sewage cleaning process and apparatus, by biological method using nitrificating and denitrificating processes, aerobic mud-stabilization, and dephosphorization