Sulfide removal in wastewater from petrochemical industries by autotrophic denitrification

Vaiopoulou, Eleni; Melidis, Paraschos; Aivasidis, A.

doi:10.1016/j.watres.2005.07.022

Cited by 145 publications

(68 citation statements)

References 7 publications

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“…In this study, genes derive from NR-SOB microorganisms, including T. denitrificans, S. denitrificans and P. pantotrophus, were detected in both ISDD and DSR models. As previously reported, these species were widely present in oil field, petrochemical industry wastewater and sediment (Greene et al, 2003;Shao et al, 2010;Vaiopoulou et al, 2005;Zhang et al, 2009), and thought to play a critical role in sulfide control. Their abundance was changed with S 0 conversion rates observed in the two models (Table 1 and Fig.…”

Section: Discussionsupporting

confidence: 53%

GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process

Chen

et al. 2014

Journal of Environmental Sciences

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The elemental sulfur (S 0 ) recovery was evaluated in the presence of nitrate in two development models of simultaneous desulfurization and denitrification (SDD) process. At the loading rates of 0.9 kg S/(m 3 ·day) for sulfide and 0.4 kg N/(m 3 ·day) for nitrate, S 0 conversion rate was 91.1% in denitrifying sulfide removal (DSR) model which was higher than in integrated simultaneous desulfurization and denitrification (ISDD) model (25.6%). A comprehensive analysis of functional diversity, structure and metabolic potential of microbial communities was examined in two models by using functional gene array (GeoChip 2.0). GeoChip data indicated that diversity indices, community structure, and abundance of functional genes were distinct between two models. Diversity indices (Simpson's diversity index (1/D) and Shannon-Weaver index (H′)) of all detected genes showed that with elevated influent loading rate, the functional diversity decreased in ISDD model but increased in DSR model. In contrast to ISDD model, the overall abundance of dsr genes was lower in DSR model, while some functional genes targeting from nitrate-reducing sulfide-oxidizing bacteria (NR-SOB), such as Thiobacillus denitrificans, Sulfurimonas denitrificans, and Paracoccus pantotrophus were more abundant in DSR model which were highly associated with the change of S 0 conversion rate obtained in two models. The results obtained in this study provide additional insights into the microbial metabolic mechanisms involved in ISDD and DSR models, which in turn will improve the overall performance of SDD process.

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Section: Discussionsupporting

confidence: 53%

GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process

Chen

et al. 2014

Journal of Environmental Sciences

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“…Some biological methods for sulfide removal might oxidize sulfide to sulfate directly, without the generation of elemental sulfur. 3 Our result showed an advantage to these methods as elemental sulfur was a non-corrosive solid and was easy to remove from aqueous solutions. However, the anode surface contained only about 2±0.6% sulfur (balance-corrected for carbon), which was lower than that obtained by Rabaey et al 6 This could be because the anode potential was not controlled exactly.…”

Section: Sulfide and Organics Removalsmentioning

confidence: 68%

“…One of the most promising applications for MFCs is in the simultaneous treatment of wastewater and power generation. 2 Dissolved sulfide and hydrogen sulfide are commonly found in petrochemical processing wastewater, 3 sour produced wastewater, and digester effluent. The toxic and malodorous (odor threshold concentration 0.4 mg L −1 ) nature of sulfide governs its removal from wastewaters.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of sulfide and organics with vanadium(V) reduction in microbial fuel cells

Zhang

Zhao

Shi

et al. 2009

J of Chemical Tech & Biotech

122

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“…In general, industries that manufacture viscose rayon, paper, and pulp discharge wastewater streams containing high H 2 S concentrations. Dissolved H 2 S may also be found in untreated agricultural water output and in effluent streams generated from the hydrocracking of crude oil [3], [4]. Conventional processes for wastewater treatment, such as aeration, forced draft degasification, and vacuum degasification may involve high cost as these processes require high duty equipments like blowers etc.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Analysis of Removal of Dissolved Acidic Gases from Aqueous Stream Using Membrane Contactor

Rawat¹,

Agrahari²,

Pandey³

et al. 2013

IJCEA

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Abstract-A mathematical analysis was performed on an acid-gas removal process applied to an aqueous feed stream using a hollow fiber membrane contactor in liquid-liquid extraction mode. Furthermore, a comparison was made between the obtained simulation results and with the earlier published experimental results. The model development is based on a process setup wherein synthetic wastewater feed solution was considered to be passing through the lumen side and later recycled back to the feed tank. On the shell side of the membrane contactor, an extractant was circulated in the counter direction. The model is developed considering radial and axial diffusion mechanisms and convection on the lumen side. Mass transfer across the pore by diffusion from Knudsen and bulk flow has also been considered. The partial differential equations obtained, were solved by converting them into a number of ordinary differential equations by using the finite difference method. The model was solved and simulated using MATLAB. The effect of various membrane contactor parameters such as the number of fibers and their effective lengths on the removal of gases have also been studied in this analysis. The simulated results obtained were observed to be in excellent agreement with the experimental results obtained for the acidic gas, H 2 S.Index Terms-Waste water treatment, membrane separation, hollow fiber membrane contactor, degasification of water, modeling and simulation.

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Sulfide removal in wastewater from petrochemical industries by autotrophic denitrification

Cited by 145 publications

References 7 publications

GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process

GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process

Simultaneous removal of sulfide and organics with vanadium(V) reduction in microbial fuel cells

Mathematical Analysis of Removal of Dissolved Acidic Gases from Aqueous Stream Using Membrane Contactor

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