Start-up of simultaneous partial nitrification, anammox and denitrification (SNAD) process in sequencing batch biofilm reactor using novel biomass carriers

2015 ◽  
Vol 190 ◽  
pp. 480-486 ◽  
Author(s):  
Achlesh Daverey ◽  
Yi-Chian Chen ◽  
Kasturi Dutta ◽  
Yu-Tzu Huang ◽  
Jih-Gaw Lin
Keyword(s):  
Biofilm Reactor ◽  
Partial Nitrification ◽  
Sequencing Batch Biofilm Reactor ◽  
Start Up

Efficient Star-up of Partial Nitrification Process in Sequencing Batch Biofilm Reactor with Domestic Wastewater at Room Temperature

2011 ◽  
Vol 255-260 ◽  
pp. 2815-2818 ◽  
Author(s):  
Tao Tao Zeng ◽  
Dong Li ◽  
Jie Zhang
Keyword(s):  
Room Temperature ◽  
Domestic Wastewater ◽  
Biofilm Reactor ◽  
Partial Nitrification ◽  
Ammonium Concentration ◽  
Sequencing Batch Biofilm Reactor ◽  
Start Up ◽  
Nitrification Process ◽  
Nitrite Oxidizing Bacteria ◽  
Full Period

This study focused on star-up of the partial nitrification in sequencing batch biofilm reactor (SBBR) with domestic wastewater at room temperature. No significant nitrate formation was observed during the full period of operation and the nitrite oxidizing bacteria (NOB) was successfully outcompeted. When influent ammonium concentration decreased from 200mg/L to 80mg/L, a stable influent at a ratio of 1.03 NO2-N/NH4-N was produced after 44 continuous cycles（33d）and that indicated partial nitrification achievement. A recommended start-up strategy based on high FA concentration and aeration control was proposed to achieve partial nitrification with low ammonium strength wastewater at room temperature.

Partial nitrification and nitrous oxide emission in an intermittently aerated sequencing batch biofilm reactor

2013 ◽  
Vol 217 ◽  
pp. 435-441 ◽  
Author(s):  
Qiang Kong ◽  
Jian Zhang ◽  
Mingsheng Miao ◽  
Lin Tian ◽  
Ning Guo ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Nitrous Oxide Emission ◽  
Biofilm Reactor ◽  
Partial Nitrification ◽  
Sequencing Batch Biofilm Reactor

Combination of photo-Fenton and biological SBBR processes for sulfamethoxazole remediation

2008 ◽  
Vol 58 (9) ◽  
pp. 1707-1713 ◽  
Author(s):  
O. González ◽  
M. Esplugas ◽  
C. Sans ◽  
S. Esplugas
Keyword(s):  
Biological Treatment ◽  
Fenton Reaction ◽  
Biofilm Reactor ◽  
Synthetic Wastewater ◽  
Total N ◽  
Sequencing Batch Biofilm Reactor ◽  
N Removal ◽  
Start Up ◽  
C And N ◽  
Combined Strategy

A combined strategy of a photo-Fenton pretreatment followed by a Sequencing Batch Biofilm Reactor (SBBR) was evaluated for total C and N removal from a synthetic wastewater containing 200 mg L−1 of the antibiotic Sulfamethoxazole (SMX). Photo-Fenton reaction was performed with two different H2O2 concentrations (300 and 400 mg L−1) and 10 mg L−1 of Fe2 + . The pre-treated effluents with the antibiotic intermediates as sole carbon source, together with a nutrients solution, were used as feed for the biological reactor. The SBBR was operated under aerobic conditions to mineralize the organic carbon and the hydraulic retention time (HRT) was optimized down to 8 hours. Then, an anoxic denitrification stage of 24 hours of HRT was added right after the aerobic stage of the same duration in order to remove the NO3− generated along the chemical–biological treatment. TOC, COD and SMX concentrations together with O2 uptake rate (OUR) profiles were monitored in purpose of assessing the performance of the system. NO3−, NH4+ and total N concentrations were analyzed to find out the fate of N contained in the initial SMX molecule. A start up strategy resulted in the correct formation of a biofilm over the volcanic support. The total TOC removals achieved with the combination of the chemical and the biological processes were 75.7 and 87.7% for the low and the high H2O2 concentration pretreatments respectively. Practically all N present in the SMX solution was eliminated in the SBBR when the aerobic–anoxic strategy was used.

Start-up of the Canon process from activated sludge under salt stress in a sequencing batch biofilm reactor (SBBR)

2010 ◽  
Vol 101 (16) ◽  
pp. 6309-6314 ◽  
Author(s):  
Zhaoji Zhang ◽  
Shaohua Chen ◽  
Peng Wu ◽  
Lifeng Lin ◽  
Hongyuan Luo
Keyword(s):  
Salt Stress ◽  
Activated Sludge ◽  
Biofilm Reactor ◽  
Sequencing Batch Biofilm Reactor ◽  
Start Up ◽  
Canon Process

Study on Achievement and Temperature Influence of Shortcut Nitrification in Sequencing Biofilm Batch Reactor

2014 ◽  
Vol 955-959 ◽  
pp. 3389-3392
Author(s):  
Li Cheng Zhang ◽  
Wei Dang ◽  
Jie Li ◽  
Jun Sui
Keyword(s):  
Accumulation Rate ◽  
Batch Reactor ◽  
Biofilm Reactor ◽  
Nitrite Accumulation ◽  
Ammonia Oxidizing Bacteria ◽  
Temperature Influence ◽  
Intermittent Aeration ◽  
Urban Sewage ◽  
Sequencing Batch Biofilm Reactor ◽  
Start Up

The intermittent aeration strategy was applied to the sequencing batch biofilm reactor (SBBR) for the enhanced treatment of urban sewage. Ammonia oxidizing bacteria was cultivated by inoculation. After 25 days cultivation shortcut nitrification was successfully achieved and nitrite accumulation rate could be up to 93%. In the start-up phase of shortcut nitrification, intermittent aeration could increase production of nitrite and promote the enrichment of ammonia oxidizing bacteria. It was concluded that temperature could affect nitrite accumulation. When temperature is in 25~35°C, the nitrite accumulation rate could be up to 90%.

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