in an attempt ot develop a one step process for the removal of h2s from sour gas, the engineering consideration were dealt with in two steps. in the first step it was attempted to derive the data required for establishing the design criteria for a pilot plant, by experimenting with a small bench scale.

Saline wastewaters can be produced from industrial activities, the use of seawater and brackish water in urban environments, or due to saline water infiltration into the sewer system. This can lead to sulfate-rich wastewater that under anaerobic conditions and the presence of electron donors can result in sulfide production. This study focuses on evaluating the sulfide effects on the biological...

Simultaneous removal of NO(x) and SO2 from exhausted gas were investigated by studying co-culture of sulfate reducing bacteria and anaerobic denitrifying bacteria, separated from landfill leachate. When H2S, generated by sulfate reducing bacteria was chosen as the sole electron donor for anaerobic denitrifying bacteria, the co-culture system demonstrated a faster NO removal rate, higher stabili...

Acid gas removal from gaseous streams such as flue gas, natural and biogas is mainly performed by chemical absorption with amines, but the process highly energy intensive can generate emissions of harmful compounds to atmosphere. Considering emerging interest in carbon capture, associated increasing environmental concerns, there much current effort develop innovative solvents able lower impact ...

The ability of cellular concrete waste (CC) to remove hydrogen sulfide (H2S) from a mimic biogas composed nitrogen, oxygen and H2S was investigated using abiotic filtration systems for concentration up 1500 mg m−3 Empty Bed Residence Time (EBRT) ranging 30 180 s. influence the humidity material in removal studied. In wetted conditions (relative > 97 %), 169 g were removed per kg material. This ...

Due to strategic and environmental reasons, currently, there is an increasing interest in biofuels as alternative energy source. Bio-alcohols and biodiesel are the alternatives been considered for auto-motion while biomass and biogas are the alternatives been considered for electrical power generation. Biogas is a medium-energy content fuel (~22 MJ/kg) derived from the organic material decompos...

Abstract Acidic biotrickling filters (BTF) can be used for simultaneous removal of hydrogen sulfide (H2S) and siloxane from biogas. In this study, the performance a BTF under different acidic pH conditions was investigated. The profile H2S showed that 90% achieved during first 0.4 m height with down-flow Decamethylcyclopentasiloxane (D5) decreased 34.5% to 15.6% when increased 0.88 3.98. Furthe...

As a potential adsorbent material, loose, porous livestock manure biochar provides new approach to resource utilization. In this study, coconut husks (CH) and manure, i.e., cow dung (CD), pig (PM), chicken (CM) were used as biomass precursors for preparation of via high-temperature pyrolysis CO2 activation. Characterization technologies, such scanning electron microscopy, Fourier transform infr...

Biogas, which generated from renewable sources can be used as a sustainable energy to achieve resourceful targets of biofuel for internal combustion engines. This process can be achieved in combined absorption and adsorption chemical way. This method can be employed by aqueous solutions of calcium hydroxide, activated carbon, iron(II) chloride, silica gel and sodium sulfate respectively. The pr...