An integrated treatment system for coffee processing wastewater using anaerobic and aerobic process

Selvamurugan, M.; Doraisamy, P.; Maheswari, M.

doi:10.1016/j.ecoleng.2010.07.013

Cited by 65 publications

(50 citation statements)

References 11 publications

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“…Diamantis et al (2005) achieved a specific biogas production of 240 L kg -1 of COD removal in the treatment of fruit canning wastewater using hybrid reactor. Selvamurugan et al (2010) also achieved a biogas production of 490 L kg -1 of BOD removal in the biomethanation of coffee processing wastewater through UAHR at 24 h HRT.…”

Section: Influence Of Hrt On Performance Of Reactorsmentioning

confidence: 97%

High-rate anaerobic treatment of distillery spentwash using UASB and UAHR

Selvamurugan

Doraisamy

Maheswari

2014

IJEE

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Performance of upflow anaerobic sludge blanket and upflow anaerobic hybrid reactor in treatment of distillery spentwash was investigated under similar operating conditions. The reactors were initially fed with distillery spentwash having an average COD concentration of 1,22,000 mg L -1 with a HRT of 10 days and their performance was evaluated by operating at various HRTs viz., 10, 8, 7, 6, 5 and 4 days. Among the various HRTs, six days HRT was found to be ideal for the maximum reductions of COD, BOD and TS by 63.26, 70.80 and 57.20% respectively at OLR of 19.75 kg COD m -3 day -1 with UASB and 70.60, 78.50 and 62.45% at OLR of 19.25 kg COD m -3 day -1 with UAHR. The biogas yield of 0.30 and 0.31 m 3 kg -1 COD removed was recorded in UASB and UAHR. Population of total anaerobic bacteria and methanogenic bacteria are also high in UAHR than in UASB. The study concludes that upflow anaerobic hybrid reactor is superior in reducing the pollution load of distillery spentwash as compared to UASB.Keywords: upflow anaerobic sludge blanket; UASB; upflow anaerobic hybrid reactor; UAHR; hydraulic retention time; biogas production; treatment of distillery spentwash.Reference to this paper should be made as follows: Selvamurugan, M., Doraisamy, P. and Maheswari, M. (2014) 'High-rate anaerobic treatment of distillery spentwash using UASB and UAHR', Int.

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Section: Influence Of Hrt On Performance Of Reactorsmentioning

confidence: 97%

High-rate anaerobic treatment of distillery spentwash using UASB and UAHR

Selvamurugan

Doraisamy

Maheswari

2014

IJEE

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“…The intensive processing of agricultural products for the agri-business industry usually generates a large amount of polluted water, which cannot be reused again for agricultural purposes, because of the high amount of organic pollution in the wastewater produced by this industry. MFCs can, for example, be a suitable solution for the depollution of wastewater from coffee processing, allowing coffee farmers a safe second utilization of the water [8,9], and at the same time a recovery of energy for the system's functioning and sensors.…”

Section: Water Pollutionmentioning

confidence: 99%

Microbial fuel cell: An energy harvesting technique for environmental remediation

Ancona¹,

Caracciolo²,

Borello³

et al. 2020

Int. J. EI

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Pollution of soil and water environments is mainly due to different anthropogenic factors, and the presence of organic contaminants, in particular persistent, bioaccumulative and toxic ones, arouses concern for their possible effects on environment and human health. One nature-based technology that can be used in biodegradation of contaminated soil and water is microbial fuel cells (MFCs). They are also capable of producing energy and of being used as environmental sensors. In this context, this article aims at presenting the capacity of MFCs to reduce environmental pollution by exploiting the process of bioelectrochemical utilization of organic matter via microbial metabolism, to generate usable byproducts, fuels and bioelectricity. The main characteristic of an MFC, when used for energy harvesting, is the absence of emissions of pollutant gases such as CO, CO 2 , SOx or NOx. This characteristic, together with the intrinsic capacity of bioreactors to decontaminate soils and water, is stimulating the research into engineering solutions exploiting the MFC potential. Among the different types of MFCs, as bioelectrochemical systems (BESs), the terrestrial microbial fuel cells and the wastewater microbial fuel cells convert energy using a biocatalyst (microorganism) and a biofuel (organic substrate) in basic environments such as soil and water. Consequently, MFCs can be used as energy sources for powering sensors with low-power and low-voltage characteristics or complete single nodes of a distributed wireless sensor network, if coupled with smart although more complex electronic circuit. Moreover, MFCs can be environmental sensors, suited to monitoring some environmental parameters influencing MFC functional behaviours such as pH and temperature. This article introduces the polluted environment scenarios where these technologies could be suitably applied together with the description of two main types of MFC structures and their functioning. Furthermore, some case studies in which MFCs are used in decontamination of polluted environments are described.

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“…Coffee processing wastewater (CPWW) was sequentially treated using biomethanation, aeration and wetland plants treatment (Selvamurugan et al, 2010a). An Lab-scale high-rate mesophilic anaerobic contact reactors were used to treat potato-processing wastewater at different OLRs ranging from 1.00 to 5.00 g COD/L • d (Senturk et al, 2010a).…”

Section: Jedrzejewska-cicinska and Krzemieniewskimentioning

confidence: 99%

Food‐Processing Wastes

Frenkel¹,

Cummings²,

Scannell³

et al. 2011

Water Environment Research

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Literature published in 2010 and early 2011 related to food processing wastes treatment for industrial applications is reviewed. This review is a subsection of the Treatment Systems section of the annual Water Environment Federation literature review and covers the following food processing industries and applications: meat and poultry, fruits and vegetables, seafood, dairy and beverage, and anaerobic treatment, biological and physicalchemical methods.

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An integrated treatment system for coffee processing wastewater using anaerobic and aerobic process

Cited by 65 publications

References 11 publications

High-rate anaerobic treatment of distillery spentwash using UASB and UAHR

High-rate anaerobic treatment of distillery spentwash using UASB and UAHR

Microbial fuel cell: An energy harvesting technique for environmental remediation

Food‐Processing Wastes

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