Effective aerobic granular sludge treatment of a real dyeing textile wastewater

Lotito, Adriana Maria; Fratino, Umberto; Mancini, Annalisa; Bergna, Giovanni; Iaconi, Claudio Di

doi:10.1016/j.ibiod.2012.01.004

Cited by 73 publications

(32 citation statements)

References 30 publications

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“…However, in this study, sewage was treated as is, without the addition of nutrients, with the aim to assess the competency of aerobic granules in treating the sewage itself. According to Lotito et al (2012), real wastewater should be treated as is, without the addition of micro-or macro-nutrients. This aids in identified the effective treatability of wastewater, and verifies the capability of biomass in the reactor to stress conditions.…”

Section: Substrate Characterizationmentioning

confidence: 99%

Effect of reactor height/diameter ratio and organic loading rate on formation of aerobic granular sludge in sewage treatment

Awang

Shaaban

2016

International Biodeterioration & Biodegradation

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Section: Substrate Characterizationmentioning

confidence: 99%

Effect of reactor height/diameter ratio and organic loading rate on formation of aerobic granular sludge in sewage treatment

Awang

Shaaban

2016

International Biodeterioration & Biodegradation

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“…[ 35,[46][47][48][49] Although Table 3 highlights the three basic category of treatment methods, a number of treatment technologies evolve thereof and are so much interrelated that a technique may be a part of two methods. Typically, adsorption can be physical or chemical, depending on the existing bonds formed in the process.…”

Section: Iitreatment Processesmentioning

confidence: 99%

Textile Waste Water and the advanced Oxidative Treatment Process, an Overview

Kehinde¹,

Aziz²

2014

IJIRSET

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Sustainability of the environment has become a focus; hence the need for improvement and monitoring of textile waste water discharges, for which major concern is color. Color in textile dyeing and finishing effluents is as a result of large amounts of dye stuffs left during the dyeing stages and inefficient dyeing processes often resulting in unfixed forms. Waste water from Textile and dyeing industries contain many pollutants, making it high in organic and inorganic chemical content, total organic carbon (TOC), chemical oxygen demand (COD), and especially, strong color. It is thus difficult to be degraded by the conventional methods; hence the use of the advanced oxidation processes (AOPs). The advanced oxidative process is certainly not a very new treatment method as it has been studied and used extensively; however, hope remains for possible improvement, hence this review. AOPs are being researched more with a view to improve on the treatability of effluents and the hope to use the method for the complete mineralization of dyes. Although they are very effective in complete mineralization of pollutants, AOPs may be very expensive when used solely.

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“…The idea of applying aerobic granular sludge technology is based on this assumption that aerobic and anoxic/anaerobic reactions can be done simultaneously in granular systems. In addition, aerobic granular systems produce a suitable effluent with high hydraulic/organic loadings and low sludge production, compared with conventionally activated sludge processes . To date, limited studies have been conducted for aerobic granular sludge formation, which is helpful in the biodegradation of dye‐containing wastewater .…”

Section: Introductionmentioning

confidence: 99%

Aerobic Granular Sludge for Dye Biodegradation in a Sequencing Batch Reactor With Anaerobic/Aerobic Cycles

Moghaddam

2016

CLEAN Soil Air Water

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This study investigated the formation of aerobic granular sludge with the main objective of Acid Red 18 (AR18) biodegradation in an altering anaerobic–aerobic sequencing batch reactor. According to the obtained results, the cultivated granules showed a stable structure in the treatment of synthetic wastewater containing 50 mg/L AR18, while no considerable variety in their characteristics and no granule break up were observed. As reported by many researchers, decolourization of AR18 is due to the anaerobic biodegradation of the azo bond; however, monitoring of the dye biodegradation through UV‐Vis spectroscopy showed that the contribution of the aerobic phase in dye removal was significant. This indicates the penetration of AR18 into the inner layers of granules and the ability of anaerobic microorganisms within the granules to degrade the dye through the consumption of tightly bound extracellular polymeric substances (EPS) as a carbon and energy source. The aerobic granules were not able to decompose anaerobically formed AR18 intermediates under aerobic conditions. The increase of the initial dye concentration from 50 to 100 mg/L caused the production of excess loosely bound EPS, which led to instability of the granules and hampered the dye removal efficiency.

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Effective aerobic granular sludge treatment of a real dyeing textile wastewater

Cited by 73 publications

References 30 publications

Effect of reactor height/diameter ratio and organic loading rate on formation of aerobic granular sludge in sewage treatment

Effect of reactor height/diameter ratio and organic loading rate on formation of aerobic granular sludge in sewage treatment

Textile Waste Water and the advanced Oxidative Treatment Process, an Overview

Aerobic Granular Sludge for Dye Biodegradation in a Sequencing Batch Reactor With Anaerobic/Aerobic Cycles

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