Long-term performance evaluation of an anoxic sulfur oxidizing moving bed biofilm reactor under nitrate limited conditions

Khanongnuch, Ramita; Capua, Francesco Di; Lakaniemi, Aino–Maija; Rene, Eldon R.; Lens, Piet N.L.

doi:10.1039/c9ew00220k

Cited by 13 publications

(7 citation statements)

References 33 publications

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“…Despite increasing popularity of various next generation sequencing techniques, the DGGE method remains as a fast‐performing fingerprinting method to compare the diversity of microbial communities from natural environments (e.g., biofilm, soil, sediment; Doni et al, ; Khanongnuch, Di Capua, Lakaniemi, Rene, & Lens, ; Morales‐Londoño et al, ). During the present study, DGGE was performed using an Ingeny PhorU (Ingeny International, Goes, Netherlands) instrument.…”

Section: Methodsmentioning

confidence: 99%

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Borsodi

Anda

Krett

et al. 2020

River Research & Apps

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As the submerged shoot parts of common reed (Phragmites australis) can provide large surfaces for biofilm‐forming bacteria, extensive reed stands can effectively contribute to the self‐purification in the littoral zones of freshwaters. However, bacterial biofilm developed on reed surfaces have been studied only in still waters. In the present study, comparative examinations were performed on the planktonic and reed biofilm bacterial communities from two different riverine water bodies. Water and reed biofilm samples were taken at the beginning and end of the vegetation period from (a) a regulated side arm and (b) a separated oxbow of River Danube. Besides measuring physical and chemical environmental variables, planktonic bacterial cell numbers were detected by 4′,6‐diamidino‐2‐phenylindole staining method, and the bacterial communities were compared by denaturing gradient gel electrophoresis. Our results demonstrated that the structure and composition of bacterial communities correlated with different environmental variables and were different regarding both the habitats (planktonic vs. reed biofilm) and the types of riverine water bodies. The seasonal differences in the bacterial community structures were smaller in the river side arm than in the separated oxbow. In the water column, representatives of widespread and typical freshwater planktonic bacteria (“Candidatus Planktophila,” Limnohabitans, and Polynucleobacter), whereas, in the reed biofilm samples, phototrophic and plant associated bacteria were identified.

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Section: Methodsmentioning

confidence: 99%

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Borsodi

Anda

Krett

et al. 2020

River Research & Apps

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“…The complete oxidation to sulfate (and reduction of nitrate to nitrogen gas) stably occurs when the N/S ratio reaches 1.6 (Gommers et al, 1988;Krishnakumar & Manilal, 1999;Reyes et al, 2004). When the nitrate concentration is low, it could be dosed externally, but the dosing must be strictly controlled in practice to minimize operational costs (Khanongnuch et al, 2019). The final product of autotrophic denitrification varies, as shown in Equations 11.6-11.17:…”

Section: Fundamentals Of Biologically Driven Processes For H 2 S Remomentioning

confidence: 99%

Biological H₂S removal from gases

Andreides¹,

Pokorná-Krayzelová²,

Bartáček³

et al. 2020

Environmental Technologies to Treat Sulphur Pollution: Principles and Engineering

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Hydrogen sulfide (H 2 S) is an odorous and poisonous gas present in biogas (the main product of anaerobic digestion), in sour gas (i.e. natural gas with a high content of H 2 S) or in general in the gases coming as a concomitant with crude oil extraction. H 2 S can also be produced abiotically, e.g. through the reaction of anhydrite and hydrocarbons as reported in deep carbonate gas reservoirs (Worden & Smalley, 1996). In environmental engineering applications, H 2 S is most often generated during anaerobic fermentation of substrates containing sulfur compounds. Sulfate-reducing bacteria (SRB) with a respiratory metabolism use sulfate as an electron acceptor while producing sulfide, which is toxic both in its liquid as well as in its gaseous form. Gaseous hydrogen sulfide causes the corrosion of concrete and steel digesters (see Chapter 5) and other equipment such as pipes, burners and combined heat and power (CHP) units, which increases the operational costs since the engine oil is acidified and its replacement interval is significantly shortened. While burning, the acid rain precursors SO 2 and SO 3 are emitted to the environment. Last but not the least, gaseous hydrogen sulfide is extremely toxic and causes health risks for the operators of fermenters and sewer maintainers. The olfactory nerve responding to the smell of hydrogen sulfide is paralyzed after a few inhalations of 100-150 ppm,

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“…Several technologies using SOB as the biofilm in a moving bed reactor have been reported. For example, SOB biofilm could remove S 2 O 3 2À and NO 3 À in the wastewater (Khanongnuch et al 2019). SOB biofilm is also used to remove hydrogen sulfide which is the by-product of the anaerobic digestion process of organic wastewater (Lestari et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Isolation, characterization and S2−-oxidation metabolic pathway of a sulfur-oxidizing strain from a black-odor river in Beijing

Zhang

Song²,

et al. 2022

Water Supply

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A single strain capable of efficient S2−-oxidizing was isolated from a black-odor river in Beijing. The single strain was identified as Stenotrophomonas through the physiology and biochemical characteristics as well as the 16S rRNA sequencing experiment. This strain was named as Stenotrophomonas sp.sp3 (strain sp3). The experimental results showed that for the strain sp3 growth and S2− oxidization, the optimal conditions were as follows: 25 °C of temperature, initial pH 7, 2.5 g/L of initial glucose concentration and 1.00 g/L of initial cell concentration. It was found that there were 31 kinds of sulfur oxidation related genes in the strain sp3 through the whole genomic analysis. The results of the transcriptome analysis suggested that the main metabolic pathway of S2− to SO42− was the paracoccus sulfur oxidation process. The bioconversion processes of S2− to S0, S2− to SO32−, S2O32− to S0 and SO32−, and SO32− to SO42− were controlled by hdrA, cysIJ, tst and sox gene, respectively.

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Long-term performance evaluation of an anoxic sulfur oxidizing moving bed biofilm reactor under nitrate limited conditions

Abstract: An anoxic sulfur-oxidizing moving bed biofilm reactor (MBBR) treating sulfur and nitrate-contaminated synthetic wastewater was monitored for 306 days under feed nitrogen-to-sulfur (N/S) molar ratios of 0.5, 0.3 and 0.1.

Cited by 13 publications

References 33 publications

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Biological H₂S removal from gases

Isolation, characterization and S2−-oxidation metabolic pathway of a sulfur-oxidizing strain from a black-odor river in Beijing

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Long-term performance evaluation of an anoxic sulfur oxidizing moving bed biofilm reactor under nitrate limited conditions

Abstract: An anoxic sulfur-oxidizing moving bed biofilm reactor (MBBR) treating sulfur and nitrate-contaminated synthetic wastewater was monitored for 306 days under feed nitrogen-to-sulfur (N/S) molar ratios of 0.5, 0.3 and 0.1.

Cited by 13 publications

References 33 publications

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Biological H2S removal from gases

Isolation, characterization and S2−-oxidation metabolic pathway of a sulfur-oxidizing strain from a black-odor river in Beijing

Contact Info

Product

Resources

About

Biological H₂S removal from gases