Treatment of automotive industry wastewater using anaerobic batch reactors: The influence of substrate/inoculum and molasses/wastewater

2016 ◽  
Vol 102 ◽  
pp. 648-654 ◽  
Author(s):  
Meltem Sarioglu (Cebeci) ◽  
Öznur Begüm Gökçek
Keyword(s):  
Automotive Industry ◽  
Batch Reactors ◽  
Molasses Wastewater ◽  
Influence Of Substrate ◽  
Industry Wastewater

The joint acute effect of tetracycline, erythromycin and sulfamethoxazole on acetoclastic methanogens

2015 ◽  
Vol 71 (8) ◽  
pp. 1128-1135 ◽  
Author(s):  
Sevcan Aydın ◽  
Bahar Ince ◽  
Orhan Ince
Keyword(s):  
Mrna Level ◽  
Acute Effect ◽  
Anaerobic Treatment ◽  
Anaerobic Sludge ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Acetyl Coa ◽  
Acetate Accumulation ◽  
Acetate Degradation ◽  
Industry Wastewater

In this study, we aimed to develop an understanding of the triple effects of sulfamethoxazole–erythromycin–tetracycline (ETS) and the dual effects of sulfamethoxazole–tetracycline (ST), erythromycin–sulfamethoxazole (ES) and erythromycin–tetracycline (ET) on the anaerobic treatment of pharmaceutical industry wastewater throughout a year of operation. Concentrations of the antibiotics in the influent were gradually increased until the metabolic collapse of the anaerobic sequencing batch reactors (SBRs), which corresponded to ETS (40 + 3 + 3 mg/L) and ST (25 + 2.5 mg/L), ET (4 + 4 mg/L) and ES (3 + 40 mg/L). Acetate accumulation in the anaerobic SBRs, acetoclastic activity of the anaerobic sludge taken from different antibiotic feeding stages and also expression of acetyl-coA synthetase from the acetoclastic methanogenic pathway on the mRNA level were assessed. The results indicated that, while acetate accumulation and decrease of acetoclastic activity were observed after stage 3 in the ST and ES reactors, and stage 7 in the ETS and ET reactors, the expression of acetyl-coA synthetase was mostly decreased in the last stages in all SBRs, in which antibiotic mixture feeding was terminated. It might be speculated that acetoclastic methanogens have an important role in acetate degradation by expressing acetyl-coA synthetase.

Treatment of food industry wastewater in sequencing batch reactors

1990 ◽  
Vol 11 (6) ◽  
pp. 499-508 ◽  
Author(s):  
Jan A. Oleszkiewicz ◽  
Stan Mateja ◽  
J. Eric Hutchison
Keyword(s):  
Food Industry ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Industry Wastewater

Treatment of automotive industry wastewater by electrocoagulation using commercial aluminum electrodes

2020 ◽  
Vol 142 ◽  
pp. 272-284 ◽  
Author(s):  
Lucas Pandolphi Zini ◽  
Marielen Longhi ◽  
Eliena Jonko ◽  
Marcelo Giovanela
Keyword(s):  
Automotive Industry ◽  
Aluminum Electrodes ◽  
Industry Wastewater

Impact of paint shop decanter effluents on biological treatability of automotive industry wastewater

2017 ◽  
Vol 330 ◽  
pp. 61-67 ◽  
Author(s):  
Didem Güven ◽  
Oytun Hanhan ◽  
Elif Ceren Aksoy ◽  
Güçlü Insel ◽  
Emine Çokgör
Keyword(s):  
Automotive Industry ◽  
Paint Shop ◽  
Biological Treatability ◽  
Industry Wastewater

Automotive industry wastewater treatment by mixture of enzymes

2015 ◽  
Vol 147 (1) ◽  
pp. 159-164 ◽  
Author(s):  
Tomáš Mackuľak ◽  
Igor Bodík ◽  
Miroslava Smolinská ◽  
Alžbeta Takáčová ◽  
Miloslav Drtil ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Automotive Industry ◽  
Industry Wastewater

scholarly journals Determination of the potential of pickle wastewater as feedstock for biopolymer production

2020 ◽  
Vol 81 (1) ◽  
pp. 21-28
Author(s):  
Ayse Guventurk ◽  
Dilara Ozturk ◽  
Goksin Ozyildiz ◽  
Ezgi Ayisigi ◽  
Didem Guven ◽  
...  
Keyword(s):  
Organic Acid ◽  
Oxygen Demand ◽  
Organic Content ◽  
Acid Mixture ◽  
Cycle Duration ◽  
Microbial Culture ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Model Simulations ◽  
Industry Wastewater

Abstract Food industry wastewater (FIWW) streams with high organic content are among the most suitable and inexpensive candidates for polyhydroxyalkanoate (PHA) biopolymer production. Due to its high organic acid content, pickle industry wastewater (PIWW), can be considered as one of the prospective alternatives to petroleum-based polymers for PHA production. In this context, this study aimed to investigate the production of PHA with enriched microbial culture using PIWW. Two laboratory scale sequencing batch reactors (SBRs) were operated under aerobic dynamic feeding conditions at a sludge retention time of 8 days, with a total cycle duration of 24 hours. SBRs were fed with peptone mixture and PIWW. In-cycle analysis and batch respirometric tests were performed to evaluate PHA storage together with biodegradation kinetics. In-cycle analysis showed that maximum PHA content was 1,820 mgCOD/L, corresponding to 44% in the biomass (ratio of chemical oxygen demand (COD) to volatile suspended solids) for PIWW. Experimental results were also confirmed with activated sludge model simulations. As for the PHA composition, hydroxybutyrate was the major fraction. Model simulations proposed a unique conversion–degradation–storage pathway for the organic acid mixture. This paper presents a novel insight for better understanding of PHA biopolymer production using high saline FIWW.

Microstructure of an extruded rapidly solidified Al-8Fe-2Mo alloy

1986 ◽  
Vol 44 ◽  
pp. 548-549
Author(s):  
W. T. Donlon ◽  
J. E. Allison ◽  
S. Shinozaki
Keyword(s):  
Electron Microscopy ◽  
Automotive Industry ◽  
Fuel Economy ◽  
High Strength ◽  
Al Alloys ◽  
Light Weight ◽  
Thin Sections ◽  
Strength And Durability ◽  
Rapidly Solidified ◽  
Whitney Aircraft

Light weight materials which possess high strength and durability are being utilized by the automotive industry to increase fuel economy. Rapidly solidified (RS) Al alloys are currently being extensively studied for this purpose. In this investigation the microstructure of an extruded Al-8Fe-2Mo alloy, produced by Pratt & Whitney Aircraft, Goverment Products Div. was examined in a JE0L 2000FX AEM. Both electropolished thin sections, and extraction replicas were examined to characterize this material. The consolidation procedure for producing this material included a 9:1 extrusion at 340°C followed by a 16:1 extrusion at 400°C, utilizing RS powders which have also been characterized utilizing electron microscopy.

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