Effect of salt concentration on biological treatment of saline wastewater by fed-batch operation

Kargı, Fikret; Dinçer, Ali Rıza

doi:10.1016/s0141-0229(96)00070-1

Cited by 138 publications

(58 citation statements)

References 7 publications

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“…Inorganic platelets can rarely be found. The phenomena that salt in wastewater reduced the abundance of filamentous organisms were observed by many researchers (Kargi and Dincer 1996;Panswad and Anan 1999). However, filamentous bacteria were not inhibited by salinity in this study.…”

Section: Kinetics Characterizationcontrasting

confidence: 38%

“…The situation is not in line with the case of saline wastewater treatment. Many researchers report that elevated salt levels have a negative impact on the settling characteristics of freshwater activated sludge and result in reduction of settling efficiency (Kargi and Dincer 1996;Panswad and Anan 1999). Comparing this result with acclimated freshwater activated sludge, it is reasonable to conclude that halophilic filamentous bacteria may be responsible for good settling and flocculation.…”

Section: Kinetics Characterizationmentioning

confidence: 82%

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Start-up of halophilic nitrogen removal via nitrite from hypersaline wastewater by estuarine sediments in sequencing batch reactor

Cui

Ding

et al. 2013

Int. J. Environ. Sci. Technol.

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Nitrogen removal from hypersaline wastewater was successfully started up by inoculating estuarine sediments for 140 days. Efficient ammonia and total nitrogen removal was sustained under specific ammonia loading of 0.016-0.139 kg N/[kg VSS day] in a sequencing batch reactor. Stable nitrite accumulation was observed during nitrification. The specific ammonia consumption rate was higher than the value of freshwater activated sludge and saltacclimated freshwater activated sludge. With methanol as carbon source, specific nitrite reduction rate of halophilic denitrifiers was much less than the freshwater counterpart. Halophilic activated sludge was characterized as good settling and flocculation prosperity with small floc size and netlike sludge structure. The abundance of ammonia-oxidizing bacteria outnumbered ammonia-oxidizing archaeas in both estuarine sediments and the activated sludge. Nitrifier population was dominated by the halophilic members of genus Nitrosomonas. This study demonstrated the application of mixed halophilic consortia for efficient nitrogen removal, overcoming the limits and difficulties of applying freshwater bacteria for saline wastewater treatment.

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Section: Kinetics Characterizationcontrasting

confidence: 38%

Section: Kinetics Characterizationmentioning

confidence: 82%

Start-up of halophilic nitrogen removal via nitrite from hypersaline wastewater by estuarine sediments in sequencing batch reactor

Cui

Ding

et al. 2013

Int. J. Environ. Sci. Technol.

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“…The decolorization attained by AO (E. termitis) at 37°C for 4%, 6% and 8% NaCl was 60%, 43%, and 37%. Kargi and Dincer (1996) 36 mention that high salt concentrations (>1% salt) are known to cause plasmolysis and/or loss of cell activity.…”

Section: Discussionmentioning

confidence: 99%

Optimization of conditions for the biological treatment of textile dyes using isolated soil bacteria

2018

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In the 21 century, environmental pollution has been Background: acknowledged as one of the major problems. The textile and dyeing industries contribute a major portion by discharging intensely complex effluent consisting of highly noxious azoic dyes.In this study, biological treatment using acclimatized microorganisms Methods: were employed in search of a cheap and eco-friendly substitute for color removal from textile waste. The microbial inocula were isolated from effluent soil samples and then applied to flasks containing azo dyes as the only source of carbon for decolorization.Biochemical tests postulated predominance of and Results: Enterococcus bacterial strains. CO isolate or emerged as the best Bacillus Bacillus farraginis decolorizer of Orange M2R dye, decolorizing 98% of the dye. BG isolate or showed maximum decolorization on Green GS dye Paenibacillus macerans that decolorized 97% of the dye. The optimum physiochemical condition for decolorization of OM2R and GGS dye was pH 7.0, 2% NaCl conc., 1% initial dye conc. and 37°C temperature by the selected isolates.The findings were validated and have the potential for Conclusions: bioremediation in textile waste effluent treatment plants.

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“…Researchers found that high salt contents produce negative impacts on the performance of CAS systems (e.g., compromised settling, cell plasmolysis, decrease of biomass respiration rates, etc.) (Kargi and Dincer, 1996;Campos et al, 2002;Mannina et al, 2016). To overcome the negative effect of salt, researchers have investigated using innovative biological technologies for treating saline wastewater (e.g., membrane bioreactor -MBR).…”

Section: Introductionmentioning

confidence: 99%

Sequential batch membrane bio-reactor for wastewater treatment: The effect of increased salinity

Mannina

Capodici

Cosenza

et al. 2016

Bioresource Technology

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Effect of salt concentration on biological treatment of saline wastewater by fed-batch operation

Cited by 138 publications

References 7 publications

Start-up of halophilic nitrogen removal via nitrite from hypersaline wastewater by estuarine sediments in sequencing batch reactor

Start-up of halophilic nitrogen removal via nitrite from hypersaline wastewater by estuarine sediments in sequencing batch reactor

Optimization of conditions for the biological treatment of textile dyes using isolated soil bacteria

Sequential batch membrane bio-reactor for wastewater treatment: The effect of increased salinity

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