The anaerobic digestion (AD) and microbial electrolysis cell (MEC) coupled system has been proved to be a promising process for biomethane production. In this paper, it was found that by co-cultivating Geobacter with Methanosarcina in an AD-MEC coupled system, methane yield was further increased by 24.1%, achieving to 360.2 mL/g-COD, which was comparable to the theoretical methane yield of an a...

SUMMARY The performance of a 3-phase up-flow integrated high rate anaerobic digestion reactor system utilizing corn cob biochar as biofilm support was characterized at 10 liter total scale on waste trap grease wastewater at defined hydraulic retention times (HRT) and packing densities. Performance was evaluated in terms of chemical oxygen demand (COD) reduction, total volatile organic acid vari...

anaerobic digestion is a feasible technology to stabilize the solid waste generated inslaughterhouses obtaining significant quantities of biogas, considered as a clean and renewable fuel. this iswhy it is important to optimize the digestion process in order to eliminate organic matter and maximize theproduction of biogas. in this work, a system was developed for treating slaughterhouse solid wa...

• -Baker's yeast wastewater is among the severe environmental threat with 29000 mg/L COD. - M. indicus , hiemalis N. intermedia and A. oryzae were grown on wastewater. Fungi reduced total COD of by 36.3%. Fungal biomass has valuable amino acids minerals for aquaculture feed. The effluent remained was anaerobically digested to biogas further remove Baker's production industry generates large qua...

Fish-meal factories generate waste waters with high chemical oxygen demand (COD), suspended solids (SS), fats and protein concentrations. After their treatment by anaerobic digestion, effluents with high ammoniaand organic-nitrogen contents and a fraction of residual COD are produced. A biological nitrification/denitrification process is proposed to reduce both the residual carbon and the nitro...

this study investigated the microbial community in a full scale anaerobic baffled reactor and sequencing batch reactor system for oil-produced water treatment in summer and winter. the community structures of fungi and bacteria were analyzed through polymerase chain reaction–denaturing gradient gel electrophoresis and illumina high-throughput sequencing, respectively. chemical oxygen demand eff...

This study evaluated the co-remediation performance of an active–passive process comprised passive permeable reactive barrier acid mine drainage (AMD) pre-treatment and active anaerobic digestion treatment AMD with effluent as a carbon source. The bioreactor was operated for 24 consecutive days peak chemical oxygen demand (COD) sulphate loading rates 6.6 kg COD/m3/day 0.89 SO42−/m3/day, respect...

The effluent from anaerobic digestion process has high concentrations of nutrients, particularly nitrogen, essential for plant growth but is not suitable for direct disposal or application due to high chemical oxygen demand (COD), low dissolved oxygen (DO), odour issues and is potentially phytotoxic. This research explored the optimum conditions of anaerobic effluent for application and dilutio...

in this paper, startup performance of upflow anaerobic hybrid reactor and upflow anaerobic sludge blanket reactors in anaerobic treatment of distillery spentwash has been studied under identical conditions of operation. various effluent characteristics like ph, electrical conductivity, chemical oxygen demand, biochemical oxygen demand and total solids and other process parameters like biogas p...