An Automatically Controlled Alternate Oxic−Anoxic Process for Small Municipal Wastewater Treatment Plants

Autor:	A. De Angelis, R. Boccadoro, David Bolzonella, Paolo Battistoni
Rok vydání:	2003
Předmět:	Denitrification Chemistry General Chemical Engineering alternated cycles nutrients removal energy saving modeling General Chemistry Pulp and paper industry Anoxic waters Industrial and Manufacturing Engineering Wastewater Process control Nitrification Extended aeration Sewage treatment Effluent
Zdroj:	Industrial & Engineering Chemistry Research. 42:509-515
ISSN:	1520-5045 0888-5885
DOI:	10.1021/ie020376g
Popis:	A patented automatic control device was applied to management of an alternate oxic−anoxic process in a small wastewater treatment plant (700 PE). The control system enabled the optimal time−length of the aerobic and anoxic phases to be determined by analyzing the dissolved oxygen and the oxidation−reduction potential data. Moreover, also a time set point was introduced to establish the maximum length for the two phases. Results showed high performances in biological nitrogen removal (0.7−5.2 mg of NO3−N L-1 in the effluent) and a reliable control of the treatment process also during wet weather events. In comparison with extended aeration plants of similar size, lower energetic consumption was observed, generally
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a846d2d390a6315c8f518d9c94d5868 https://doi.org/10.1021/ie020376g Zobrazit plný text záznamu