Comparison between mixed liquors of two side-stream membrane bioreactors treating wastewaters from waste management plants with high and low solids anaerobic digestion

Zuriaga-Agustí, E.; Mendoza–Roca, J.A.; Bes-Piá, A.; Alonso, J.L.; Fernández-Giménez, E.; Álvarez-Requena, C.; Muñagorri-Mañueco, F.; Ortiz-Villalobos, G.

doi:10.1016/j.watres.2016.05.053

Cited by 13 publications

(8 citation statements)

References 42 publications

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“…Two full-scale MBRs (WWTP-A and WWTP-B) that treat lixiviates from plants recycling the previously separated organic fraction from the municipal solid wastes [ 45 , 46 ] were sampled. In the WWTP-A, the Anaerobic Digestion (AD) is carried out by means of a high solids system (dry process, i.e., solids concentration higher than 15%) and in the WWTP-B, the AD is carried out by means of a low solids system (wet-process, i.e., solids concentration that is lower than 10%).…”

Section: Methodsmentioning

confidence: 99%

“…In the WWTP-A, the Anaerobic Digestion (AD) is carried out by means of a high solids system (dry process, i.e., solids concentration higher than 15%) and in the WWTP-B, the AD is carried out by means of a low solids system (wet-process, i.e., solids concentration that is lower than 10%). Both WWTPs were designed to eliminate organic matter and nitrogen [ 46 ].…”

Section: Methodsmentioning

confidence: 99%

“…The membranes used in the plants were multichannel tubular and the installed active surface was 127 m 2 (WWTP-A) and 72 m 2 (WWTP-B). Biological reactors consisted of one anoxic tank, two aerobic tanks, and a final tank that can be operated aerobically or anoxically, depending on the nitrogen removal efficiencies [ 46 ].…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Quorum Sensing versus Quenching Bacterial Isolates Obtained from MBR Plants Treating Leachates from Municipal Solid Waste

Soler

Arregui

Arroyo

et al. 2018

IJERPH

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Quorum sensing (QS) is a mechanism dependent on bacterial density. This coordinated process is mediated by the synthesis and the secretion of signal molecules, called autoinducers (AIs). N-acyl-homoserine lactones (AHLs) are the most common AIs that are used by Gram-negative bacteria and are involved in biofilm formation. Quorum Quenching (QQ) is the interference of QS by producing hydrolyzing enzymes, among other strategies. The main objective of the present study was to identify QS and QQ strains from MBR wastewater treatment plants. A total of 99 strains were isolated from two Spanish plants that were intended to treat leachate from municipal solid waste. Five AHL producers were detected using AHL biosensor strains (Chromobacterium violaceum CV026 and Agrobacterium tumefaciens NT1). Fifteen strains of seventy-one Gram-positive were capable of eliminating or reducing at least one AHL activity. The analysis of 16S rRNA gene sequence showed the importance of the Pseudomonas genus in the production of biofilms and the relevance of the genus Bacillus in the disruption of the QS mechanism, in which the potential activity of lactonase or acylase enzymes was investigated with the aim to contribute to solve biofouling problems and to increase the useful lifespan of membranes.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Quorum Sensing versus Quenching Bacterial Isolates Obtained from MBR Plants Treating Leachates from Municipal Solid Waste

Soler

Arregui

Arroyo

et al. 2018

IJERPH

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“…MBRs are wastewater treatment processes that integrate a permselective membrane with a biological process (Judd 2010). The membrane serves as an advanced treatment unit for complete TSS removal and as a barrier to microorganisms , Zuriaga-Agustí et al 2016. However, MBRs are still facing a major operating problem: membrane fouling (Hashemi et al 2016a, b;Zuriaga-Agustí et al 2016).…”

Section: Membrane Bioreactorsmentioning

confidence: 99%

“…The membrane serves as an advanced treatment unit for complete TSS removal and as a barrier to microorganisms , Zuriaga-Agustí et al 2016. However, MBRs are still facing a major operating problem: membrane fouling (Hashemi et al 2016a, b;Zuriaga-Agustí et al 2016). Hashemi et Khodabakhshi reported that the use of granular activated carbon within a MBR reduces membrane fouling while also removing a significant level of recalcitrant and the biorefractory compound found in composting leachates (Hashemi and Khodabakhshi 2016).…”

Section: Membrane Bioreactorsmentioning

confidence: 99%

Composting leachate: characterization, treatment, and future perspectives

Roy

Azaïs

Benkaraache

et al. 2018

Rev Environ Sci Biotechnol

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The increasing production of waste has led to one of the major environmental challenges of today: waste management. A solution to this problem is the composting of organic wastes. While the composting process transforms organic wastes into biologically stable compost, large amounts of highly contaminated leachates that present a direct risk to the environment are also produced. First off, this review discusses the origin and nature of contaminants found in composting leachates. In a general perspective, composting leachates are characterized by the presence of high concentrations of moderately biodegradable organic matter and nutrients and contain toxic pollutants such as heavy metals and plasticizers. Treatment technologies that have been studied are subsequently reported and discussed (treatment efficiencies and operating costs). This review highlights the lack of available solutions to efficiently remove all contaminants found in these leachates, which is a major concern considering the increasing number of composting facilities. While both, membrane bioreactors and reverse osmosis, show promising results with NH 4 , COD and TSS removals of [ 70, [ 85 and [ 99.9%, respectively, the resulting effluent remains hazardous for the environment. Further studies are required to assess the use of a combination of biological and advanced oxidation process for the production of a safely disposable effluent.

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A comparative study of the influence of salt concentration on the performance of an osmotic membrane bioreactor and a sequencing batch reactor

Soler–Cabezas

Luján-Facundo

Mendoza–Roca

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND: An osmotic membrane bioreactor (OMBR) is a wastewater treatment technique that presents low energy requirements, low membrane fouling and high removal of nutrients and organic matter. However, reverse salt flux is the main disadvantage because it causes conductivity increase in the bioreactor. This study compares the performance of a sequencing batch reactor (SBR) and an OMBR in terms of chemical oxygen demand (COD) removal, soluble microbial products (SMP) and extracellular polymeric substances (EPS) production. For that, the influent conductivity in the SBR was increased as this increases conductivity in the osmotic membrane bioreactor.

show abstract

Comparison between mixed liquors of two side-stream membrane bioreactors treating wastewaters from waste management plants with high and low solids anaerobic digestion

Cited by 13 publications

References 42 publications

Quorum Sensing versus Quenching Bacterial Isolates Obtained from MBR Plants Treating Leachates from Municipal Solid Waste

Quorum Sensing versus Quenching Bacterial Isolates Obtained from MBR Plants Treating Leachates from Municipal Solid Waste

Composting leachate: characterization, treatment, and future perspectives

A comparative study of the influence of salt concentration on the performance of an osmotic membrane bioreactor and a sequencing batch reactor

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