Simultaneous Removal of High-Strength Ammoniumand Phosphorus by Alcaligenes faecalis No. 4
نویسنده
چکیده
Alcaligenes faecalis No. 4 (No. 4), which conducts heterotrophic nitrification and aerobic denitrification, removed 800 mg-N/l of highstrength ammonium and 100 mg-P/l of phosphorus, both in a synthetic medium and in an anaerobically digested municipal sludge solution. The estimated N2 conversion ratio from ammonium-nitrogen was approximately 50%. When the initial phosphorus concentration was reduced to approximately 30 mg-P/l in the synthetic medium, the phosphorus limited the growth of No. 4 after 8 h when more than 90% of P had been consumed, and then stopped the growth of No. 4 after that. The N2 conversion ratio from ammonium-nitrogen was nearly100%.
منابع مشابه
Removal of High-Strength of Ammonium and Phenol from Coking Wastewater by Alcaligenes Faecalis No.4
Alcaligenes faecalis No.4, which is capable of heterotrophic nitrification and aerobic denitrification was used to treat coking wastewater (CW) to remove high-strength of ammonium and phenol. First, the phenol-degrading ability of No.4 was verified and a synthetic medium containing lactate and phenol as carbon sources was subsequently applied to the No.4 culture. Both carbon materials were enti...
متن کاملHeterotrophic Nitrification and AerobicDenitrification of a Wastewater from a ChemicalCompany by Alcaligenes faecalis No.4
A wastewater from a chemical company (abbreviated as WC) containing approximately 5000 mg NH4-N/L ammonium and a slight amount of BOD was treated with Alcaligenes faecalis No.4 (No.4),which is capable of heterotrophic nitrification and aerobic denitrification. The repeatedbatch operation was conducted at 30°C for 900 h at controlled dissolved oxygen concentration (DO) of 2-3 mg/L in the presenc...
متن کاملAntimicrobial Activity of an Alcaligenes faecalis Strain Isolated from Oil Contaminated Soil
Abstract Background and Objective: The bacteria living in the specific ecological conditions are among the most promising antimicrobial producers. This study aimed at isolating antimicrobial producing bacteria from soils contaminated with crude oil. Material and Methods: the samples were obtained from crude oil contaminated soils around Dezful located in Khuzestan province, Iran, and antimicrob...
متن کاملThe First Study of Investigation of Clinical Isolates of Alcaligenes Xylosoxidans and Alcaligenes Faecalis by Phenotypic and Genetic Methods in Iran
Background and Objective: Alcaligenes sp. is a non-fermentative Gram-negative bacillus, which causes nosocomial infections, including urinary tract infections, pneumonia, sepsis, and may be confused with Pseudomonas aeruginosa. Alcaligenes infections usually are not well identified and due to possible errors and similarities with Pseudomonas, their diagnosis with phenotypic tests is not suffici...
متن کامل