Ex-situ biomethanation in a biotrickling filter is being developed as robust technology for the conversion of CO2 to CH4 using H2 generated from renewable power. The uses hydrogenotrophic methanogens biofilm catalyst and optimum supply nutrients imperative stable long-term operation. In this study, essential were highlighted along with systemic investigation nutrient methods. results showed tha...

The purpose of this study was to evaluate the performance laboratory-scale biotrickling filters (BTFs) packed with composite filler and pine bark under different operating conditions in purifying mixed gas containing H2S NH3. prepared modified activated carbon loaded functional microbes, using microbial immobilization technology combined a nutrient sustained-release filler. results showed that ...

A two-stage desulfurization process including an abiotic filtration using cellular concrete waste (first stage) and anoxic biotrickling filter filling with inoculated expanded schist material (second was investigated to remove H2S in mimic biogas limited O2 amount (ranged from 0.5 0.8%). The able satisfactorily for all experimental conditions (RE > 97%; concentration = 1500 mg m−3; total Emp...

Biodegradation of chloroform along with a mixture of VOCs (methanol, ethanol, acetone and toluene) commonly found in pharmaceutical emissions using a biotrickling filter (BTF) was evaluated. The performance of the BTF was evaluated for both steady and transient conditions, for different inlet loading rates (ILR), empty bed residence time (EBRT) and inlet chloroform concentrations. Among the VOC...

Abstract Biomethanation is a prospective biogas upgrading method to integrate renewable energy grid with existing grid. Biomethane can directly substitute fossil natural gas and be used in all sectors. The selection of packing material for the ex-situ biomethanation biotrickling filter reactors based on physical chemical characterization carrier material. selected supports hydrogenotrophic meth...

Particle size, pH and Fe(III) ions affect the process of bioleaching of copper from chalcopyrite ores. In the study presented herein a copper sulfide ore was subjected to bioleaching process using a mixed microbial consortium obtained from a biotrickling filter treating high loads of H2S at different mineral particle size, distinct medium pH and various additional Fe(III) ion concentrations as ...