Low strength wastewater anammox start-up by stepwise decrement in influent nitrogen: Biofilm formation mechanism and mathematical modelling

This article reviews modern applications of mathematical descriptions of biofilm formation. The focus is on theoretically obtained results which have implications for areas including the medical sector, food industry and wastewater treatment. Examples are given as to how models have contributed to the overall knowledge on biofilms and how they are used to predict biofilm behaviour. We conclude that the use of mathematical models of biofilms has demonstrated over the years the ability to significantly contribute to the vast field of biofilm research. Among other things, they have been used to test various hypotheses on the nature of interspecies interactions, viability of biofilm treatment methods or forces behind observed biofilm pattern formations. Mathematical models can also play a key role in future biofilm research. Many models nowadays are analysed through computer simulations and continue to improve along with computational capabilities. We predict that models will keep on providing answers to important challenges involving biofilm formation. However, further strengthening of the ties between various disciplines is necessary to fully use the tools of collective knowledge in tackling the biofilm phenomenon.

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Characterization of the start-up of single and two-stage Anammox processes with real low-strength wastewater treatment

Chemosphere ◽

10.1016/j.chemosphere.2019.125572 ◽

2020 ◽

Vol 245 ◽

pp. 125572 ◽

Cited By ~ 9

Author(s):

Peng Wu ◽

Xingxing Zhang ◽

Xinzhu Wang ◽

Chaochao Wang ◽

Fangnigbe Faustin ◽

...

Keyword(s):

Wastewater Treatment ◽

Two Stage ◽

Start Up ◽

Low Strength

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Comparing two start-up strategies for MBRs: Experimental study and mathematical modelling

Biochemical Engineering Journal ◽

10.1016/j.bej.2012.07.011 ◽

2012 ◽

Vol 68 ◽

pp. 91-103 ◽

Cited By ~ 36

Author(s):

Giorgio Mannina ◽

Gaetano Di Bella

Keyword(s):

Experimental Study ◽

Mathematical Modelling ◽

Start Up

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Mathematical Modelling of Long-Term Venture Capital Funding of Start-Up Enterprises

International Journal of Simulation Systems Science & Technology ◽

10.5013/ijssst.a.19.05.33 ◽

2019 ◽

Author(s):

Mihail Nikolaevich Dudin ◽

Nikolay Vasilyevich Lyasnikov ◽

Shamil Beslanovich Hambazarov ◽

Sergey Kuleshov ◽

Mariya Vladimirovna Belyaeva

Keyword(s):

Venture Capital ◽

Mathematical Modelling ◽

Venture Capital Funding ◽

Start Up ◽

Capital Funding

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Analysis on the Start-up of Campus Sewage Treatment with 3-Stage Biological Aerated Filter

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.295-298.1376 ◽

2013 ◽

Vol 295-298 ◽

pp. 1376-1379

Author(s):

Lei Zhu ◽

Fang Xing Liu ◽

Xiao Lin Jiang ◽

Hong Jiao Song

Keyword(s):

Removal Efficiency ◽

Formation Process ◽

Biofilm Formation ◽

Sewage Treatment ◽

Biological Aerated Filter ◽

Filter System ◽

N Concentration ◽

Start Up ◽

Formation Method ◽

Aerated Filter

In this study, the alternating 3-stage biological aerated filter system with the brush as the filler was proposed for campus sewage treatment and the biofilm formation process was researched. Adopting the four-stage inoculated biofilm formation method, the treatment effects of the 3 filter columns respectively lasted 23d, 20d, 23d to reach stable. After the attached biofilm grew steadily, the effluent COD concentration was between 45 mg/L and 95 mg/L, and the removal efficiency was 77%~85%. The effluent NH4+-N concentration of 1st and 3rd filter columns was 11~25 mg/L, and the removal efficiency was 47%~67%; while the effluent NH4+-N concentration of 2nd filter column was 8 ~19 mg/L, the removal efficiency was 64%~ 78%.

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Characteristics of Start-Up Period in Biological Filters with Multiple Compounded Filling for Treating Low Concentration Domestic Sewage

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.777.206 ◽

2013 ◽

Vol 777 ◽

pp. 206-212

Author(s):

Lu Ting Pan ◽

Nai Yuan Zhang ◽

Kun Wu ◽

Wen Lei Wang

Keyword(s):

Electron Microscope ◽

Treatment Effect ◽

Biofilm Formation ◽

Removal Rate ◽

Biological Membrane ◽

Ammonia Nitrogen ◽

Domestic Sewage ◽

Low Concentration ◽

Start Up ◽

Biological Filters

The characteristics of sludge, the start-up and treatment effect of biological filters with multiple compounded filling are studied with low concentration domestic sewage as treating object. Experiment results shows that it spends 25 days to start up biological filters. The removal rate of COD, ammonia nitrogen, total nitrogen (TN) and total phosphorus (TP) are about 90%, 100%, 80% and 90% respectively. Meanwhile, the Biological electron microscope results show that anaerobic biological membrane presents deep black, more filamentous fungi and a small amount of Ciliates, while aerobic biological membrane presents yellow-green, close-grained bacteria micelle, micro-metazoans such as Aspidisca and Vorticella, proving the success of the biofilm formation.

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