INVESTIGATION INTO BIOLOGICAL NUTRIENT REMOVAL FROM WASTEWATER | Zendy

Giedrė Vabolienė | Zendy; Algirdas Bronislovas Matuzevičius | Zendy

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INVESTIGATION INTO BIOLOGICAL NUTRIENT REMOVAL FROM WASTEWATER

Author(s) -

Giedrė Vabolienė,

Algirdas Bronislovas Matuzevičius

Publication year - 2005

Publication title -

journal of environmental engineering and landscape management

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.514

H-Index - 28

eISSN - 1822-4199

pISSN - 1648-6897

DOI - 10.3846/16486897.2005.9636868

Subject(s) - phosphorus , wastewater , effluent , eutrophication , biochemical oxygen demand , aeration , chemical oxygen demand , nitrogen , enhanced biological phosphorus removal , sewage treatment , environmental science , nutrient , environmental chemistry , pulp and paper industry , chemistry , environmental engineering , activated sludge , organic chemistry , engineering

Nitrogen and phosphorus removal is necessary to avoid eutrophication of water bodies when treated wastewater is outlet to slowly flowing water bodies or recycled as technological water. The “BioBalance” technology as the latest way of nitrogen and phosphorus removal was applied at Utena Wastewater Treatment Plant. Composition of wastewater has an impact on biological phosphorus removal, particularly the ratio of biochemical oxygen demand and total phosphorus (BOD7/Total-P) in wastewater after mechanical treatment. Nitrates in the anaerobic zone can have a negative effect on biological phosphorus removal. Consequently, it is necessary to evaluate the impact of the mentioned factors on biological nitrogen and phosphorus removal.Biological nitrogen and phosphorus removal was evaluated and compared by using the “BioBalance” technology for biological nitrogen and phosphorus removal and technology before reconstruction during this investigation. The correlation regressive analysis of the biochemical oxygen demand and total phosphorus (BOD7/Total‐P) after mechanical treatment and the total phosphorus concentration in the effluent was evaluated. The correlation regressive analysis of nitrates in an anaerobic zone on the aeration tank and the efficiency of phosphorus removal was also evaluated.

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