TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Wastewater Quality Monitoring in a Biological Treatment Plant
(Monitorizarea calităţii apelor īntr-o staţie de epurare biologică)
Vol LXII • No. 3A/2010
Eva Trīmbiţaşu*, Andreea Bondarev*, Sonia Mihai*, Rebeca Ana Tănase**, Florinel Lupu***
* Universitatea Petrol-Gaze din Ploieşti, Bd. Bucuresti 39, Ploieşti
e-mail:evatrimbitasu@yahoo.com
** OMV-Brazi Refinery, Romania
*** Inspectoratul de Politie Judetean,Prahova, Ploiesti

 Keywords   monitoring, wastewater, quality indicators, water treatment.

 Abstract
The main objective of this study was monitoring of wastewater in a biological treatment plant from a petroleum refinery, during April 2009. The selected quality indicators were: pH, sulphides, suspended solids, phenol, chemical oxigen demand, biological oxigen demand, ammonium ion, nitrites, nitrates and phosphates. Water samples were collected from entering the physical-chemical stage and from entering and exit the biological stage. The evolution of the studied indicators is graphically presented.

 Rezumat
Obiectivul principal al acestei lucrari este monitorizarea calitatii apelor reziduale dintr-o statie de epurare biologica, aparţinānd unei rafinării de petrol, pe parcursul lunii aprilie 2009. Indicatorii de calitate monitorizati au fost: pH-ul, sulfuri, materii īn suspensie, fenol, consumul chimic de oxigen, consumul biochimic de oxigen, ionul amoniu, azotiţi, azotaţi şi fosfaţi. Probele de apă au fost recoltate la intrarea īn treapta fizico-chimica, intrarea si ieşirea din treapta biologică. Evoluţia indicatorilor studiati este prezentata grafic.



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