Ultrasound and enzyme assisted biodegradation of distillery wastewater

Sangave, Preeti C.; Pandit, Aniruddha B.

doi:10.1016/j.jenvman.2005.08.010

Cited by 72 publications

(33 citation statements)

References 30 publications

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“…The COD removal rates was strongly correlated to the urease activity (R = 0.815 **, at the 0.01 level), strongly positively correlated to the phosphatase activity (R = 0.961 **, at the 0.01 level), and strongly positively correlated to the cellulase activity (R = 0.973 **, at the 0.01 level). The results of this study were similar to that of the following view where Sangave and Pandit demonstrated that enzyme cellulose could increase the removal rate of COD [32]. In these three systems, there were positive correlations among these three enzymes.…”

Section: The Relationship Between Enzyme Activity and Cod Removalsupporting

confidence: 89%

Evaluation of Organic Matter Removal Efficiency and Microbial Enzyme Activity in Vertical-Flow Constructed Wetland Systems

Chen

Huang

et al. 2016

Environments

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Abstract:In this study, enzyme activities and their relationships to organics purification were investigated in three different vertical flow constructed wetlands, namely system A (planting Pennisetum sinese Roxb), system B (planting Pennisetum purpureum Schum.), and system C (no plant). These three wetland systems were fed with simulation domestic sewage at an influent flow rate of 20 cm/day. The results showed that the final removal efficiency of Chemical Oxygen Demand (COD) in these three systems was 87%, 85% and 63%, respectively. Planting Pennisetum sinese Roxb and Pennisetum purpureum Schum. could improve the amount of adsorption and interception for organic matter in the substrate, and the amount of interception of organic matter in planting the Pennisetum sinese Roxb system was higher than that in planting the Pennisetum purpureum Schum. system. The activities of enzymes (urease, phosphatase and cellulase) in systems A and B were higher than those in system C, and these enzyme activities in the top layer (0-30 cm) were significantly higher than in the other layers. The correlations between the activities of urease, phosphatase, cellulase and the COD removal rates were R = 0.815, 0.961 and 0.973, respectively. It suggests that using Pennisetum sinese Roxb and Pennisetum purpureum Schum. as wetland plants could promote organics removal, and the activities of urease, phosphatase and cellulase in those three systems were important indicators for COD purification from wastewater. In addition, 0-30 cm was the main function layer. This study could provide a theoretical basis for COD removal in the wetland system and supply new plant materials for selection.

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Section: The Relationship Between Enzyme Activity and Cod Removalsupporting

confidence: 89%

Evaluation of Organic Matter Removal Efficiency and Microbial Enzyme Activity in Vertical-Flow Constructed Wetland Systems

Chen

Huang

et al. 2016

Environments

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“…So, in this study uncontrolled temperature was used. Similar results have been reported in ultrasonic treatment of distillery wastewater [17,18] and ultrasonic degradation of 2:4:6 trichlorophenol [23].…”

Section: Effect Of Ultrasonic Powersupporting

confidence: 88%

“…Sangave and Pandit [17,18] have been investigated ultrasonic treatment of the distillery effluent. If the wastewater used in the studies is a real wastewater, ultrasonic irradiation causes generation of great numbers of products due to complex structure of the effluent.…”

Section: Cod Removalmentioning

confidence: 99%

“…Among them are ozonation [6][7][8], fenton oxidation [4,5,[9][10][11], electrocoagulation [2][3][4][5][6][7][8][9][10][11][12], ultraviolet oxidation [13,14], adsorption [15,16] and ultrasonic irradiation [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…However, no study on ultrasonic treatment of baker's yeast effluent has been previously reported. In the studies done by Sangave and Pandit [17,18] and Sangave et al [19], ultrasonic treatment of distillery wastewater contains molasses has been investigated. Experiments have been done using an ultrasonic bath in their study.…”

Section: Introductionmentioning

confidence: 99%

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Maya endüstrisi atıksuyunun ultrasonik arıtılmasında işletme parametrelerinin etkisi

Ildırar

Fındık

2016

SAUFenBilDer

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In this study, ultrasound was employed to remove color and chemical oxygen demand (COD) from baker's yeast effluent. An ultrasonic homogenizator with 20kHz frequency was used for this purpose. The effect of operational parameters such as ultrasonic power, pulsed cycle, volume of wastewater and dilution ratio (wastewater volume/distilled water volume) was investigated. It was observed that decolorization increased with increasing ultrasonic power and with decreasing wastewater volume. The results show that there was no significant effect of pulsed cycle and an optimum dilution ratio was ¼ on decolorization of baker's yeast effluent. There was no change on COD value at the studied conditions. Keywords: baker's yeast effluent, chemical oxygen demand, decolorization, ultrasoundMaya endüstrisi atıksuyunun ultrasonik arıtılmasında işletme parametrelerinin etkisi ÖZ Bu çalışmada, maya endüstrisi atıksuyunun renk ve kimyasal oksijen ihtiyacı (KOİ) giderimi için ultrases kullanılmıştır. Bu amaçla 20kHz frekansta ultrasonik homojenizatör kullanılmıştır. Ultrasonik güç, vuruş döngüsü, atıksu hacmi, seyreltme oranı (atıksu hacmi/distile su hacmi) gibi parametreler incelenmiştir. Renk gideriminin ultrasonik güç artarken ve atıksu hacmi azalırken arttığı gözlenmiştir. Sonuçlar maya endüstrisi atıksuyunun renk gideriminde vuruş döngüsünün önemli etkisinin olmadığını göstermiştir. Renk gideriminde optimum seyreltme oranı ¼'dür. Çalışılan koşullarda KOİ değerlerinde değişiklik olmamıştır.

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