Developments and future potentials of anaerobic membrane bioreactors (AnMBRs)

Visvanathan, Chettiyappan; Abeynayaka, Amila

doi:10.12989/mwt.2012.3.1.001

Cited by 82 publications

(39 citation statements)

References 72 publications

(84 reference statements)

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“…The application of MBRs provides both increased SRT by avoiding the wash out of the cells and decreasing inhibitor concentrations by the separation of inhibitors (Visvanathan and Abeynayaka, 2012).…”

Section: Anaerobic Membrane Bioreactors (Anmbr)mentioning

confidence: 99%

Recent updates on biogas production - a review

Horváth¹,

Tabatabaei²,

Karimi³

et al. 2016

BRJ

134

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HIGHLIGHTS Biogas; a promising renewable alternative for natural gas with similar applications. Biogas can be produced from different types of organic wastes. AD process is accompanied with several environmental advantages compared with incineration, landfilling, and composting.  Besides energy, AD process generated a nutrientrich biological fertilizer.  Recent developments in metagenomics techniqueshave provided valuable tools to achieve improved AD process. One of the greatest challenges facing the societies now and in the future is the reduction of green house gas emissions and thus preventing the climate change. It is therefore important to replace fossil fuels with renewable sources, such as biogas. Biogas can be produced from various organic waste streams or as a byproduct from industrial processes. Beside energy production, the degradation of organic waste through anaerobic digestion offers other advantages, such as the prevention of odor release and the decrease of pathogens. Moreover, the nutrient rich digested residues can be utilized as fertilizer for recycling the nutrients back to the fields. However, the amount of organic materials currently available for biogas production is limited and new substrates as well as new effective technologies are therefore needed to facilitate the growth of the biogas industry all over the world. Hence, major developments have been made during the last decades regarding the utilization of lignocellulosic biomass, the development of high rate systems, and the application of membrane technologies within the anaerobic digestion process in order to overcome the shortcomings encountered. The degradation of organic material requires a synchronized action of different groups of microorganisms with different metabolic capacities. Recent developments in molecular biology techniques have provided the research community with a valuable tool for improved understanding of this complex microbiological system, which in turn could help optimize and control the process in an effective way in the future. GRAPHICAL ABSTRACT ARTICLE INFO ABSTRACT

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Section: Anaerobic Membrane Bioreactors (Anmbr)mentioning

confidence: 99%

Recent updates on biogas production - a review

Horváth¹,

Tabatabaei²,

Karimi³

et al. 2016

BRJ

134

View full text Add to dashboard Cite

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“…It should be noted that MBR works at relatively high dissolved oxygen concentrations. The shortest HRT mentioned in the literature, not requiring clogging preventing aeration, are in the range of 2-3 h (Visvanathan and Abeynayaka, 2012;Visvanathan et al, 2000). On the other hand, there were noted longer hydraulic retention times preferred for attached biomass reactors (e.g.…”

Section: Hydraulic Retention Timementioning

confidence: 99%

Effect of thickness of textile filter on organic compounds and nutrients removal efficiency at changeable wastewater surface level

Spychała

Lucyk²

2015

Nauka Przyr. Technol.

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Summary. The aim of the study was to identify the innovative filters' (textile filters for wastewater treatment) thickness impact on dissolved compounds removal efficiency and related: biomass concentration, hydraulic capacity and hydraulic retention time. The study was conducted on septic tank effluent (STE) which was filtered at changeable wastewater surface between 7 cm and 20 cm of height under hydrostatic pressure. The research was performed on filters of thickness: 1.8 mm, 3.6 mm and 7.2 mm. The thinner the filter layer, the lower the total solids content and the higher the hydraulic capacity. The thicker the filter layer, the higher the dissolved compounds removal efficiency. The most efficient in removal were the thickest (eight-layers) filters. The calculated hydraulic retention times were: 0.5, 1.1 and 3.3 h for two-, four-and eight-layer filters, respectively.

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“…Due to the capacity of operation with high organic loads (OLR), the anaerobic membrane bioreactors (AnMBR) are considered to be a superior alternative for the treatment of high strength organic wastewaters [1], [2]. An AnMBR can be simply defined as a biological treatment process operated without oxygen and using a membrane to provide solid-liquid separation [2].…”

Section: Introductionmentioning

confidence: 99%