Submerged attached-growth reactors as lagoon retrofits for cold-weather ammonia removal: performance and sizing
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چکیده
منابع مشابه
Investigation of nitrification and nitrogen removal from centrate in a submerged attached-growth bioreactor.
The purpose of this study was to investigate the nitrification and nitrogen removal from centrate produced in the dewatering process of anaerobically digested sludge, using a single-unit, single-zone submerged attached-growth bioreactor. The nitrogen loading varied from 0.54 to 1.51 kg-N/m3 x d. Stable ammonia oxidation (nitritification) to nitrite was demonstrated. A nitritification efficiency...
متن کاملExperimental and numerical results of a single submerged attached growth bioreactor (SAGB) for simultaneous oxidation of organics and nitrogen removal
Two primary advantages of a submerged attached growth bioreactor (SAGB) are the small volume requirement and the elimination of downstream clarification. While different configurations of SAGBs have been developed for various applications, the use of a single SAGB for achieving the combined removal of organics and nitrogen has not been extensively studied. This research studied the microbial ki...
متن کاملNitrifying community analysis in a single submerged attached-growth bioreactor for treatment of high-ammonia waste stream.
This study investigated the nitrifying community structure in a single-stage submerged attached-growth bioreactor (SAGB) that successfully achieved stable nitrogen removal over nitrite of a high-strength ammonia wastewater. The reactor was operated with intermittent aeration and external carbon addition (methanol). With influent ammonia and total Kjeldahl nitrogen ranging from 537 to 968 mg/L a...
متن کاملAmmonium removal in granular activated carbon up-flow submerged reactors containing native bacterial consortium
Free ammonium in industries wastewater could be one of the worst toxic contaminants of aquatic life if diluted in water. Biological nitrogen removal (BNR) is the most common method for removing ammonium and nitrate from wastewater. Attached growth and suspended growth are the main BNR systems. The aim of the present work was to study the treatment of petrochemical wastewater (ammonium and nitra...
متن کاملAttached-growth System for Nitrification at Low Temperature
Sun, Zhe. M.S.E., Purdue University, May 2014. Attached-Growth System for Nitrification at Low Temperature. Major Professor: Ernest R. Blatchley III. Lagoon systems are commonly used in small communities for domestic wastewater treatment. These systems are simple and economical to operate, and are often appropriate for use in areas where land costs are low. Lagoons are effective in removing con...
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ژورنال
عنوان ژورنال: Water Science and Technology
سال: 2018
ISSN: 0273-1223,1996-9732
DOI: 10.2166/wst.2018.399