Process and apparatus for purifying waste waters containing organic substances, in particular for the effective removal of phosphorus and nitrogen

• Main Authors: HARASZTI,LASZLO,-MASCH, KORDA,RUDOLF,-MASCH, JANOS,-BIOL. ADAM,ROBERT, KERCSMAR,LASZLO, PALOCZ,LASZLO, ASOTH,LASZLO, KUBO,SANDOR, KALMAN,GYOERGY,-MASCH, ZSIRAI,ISTVAN,-UMWELTSCHUTZ
• Format: Patent
• Language: English; German
• Published: 26.11.1987
• Edition: 4
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a process and an apparatus for the purification of waste waters containing organic substances, in particular for the effective removal of nitrogen and phosphorus, which are characterised by three sections (sequence: anaerobic - aerobic - semianaerobic), a high load and short residence time. In the apparatus according to the invention, by regulating the residence time of the sludge in the associated sedimentation vessel in comparison to systems with total oxidation, a significantly more effective removal of nitrogen and phosphorus from the waste waters (effluents) containing the organic substances can be achieved, without precipitation chemicals and/or external carbon sources for denitrification being required. The system, as required, can be extended by an apparatus for sludge treatment, with the aid of which the purification of the sludge water and return into the system can be achieved.