With the increasing industrial production, there was a significant number of toxic and harmful hydrogen sulfide (H2S) gas generated. Due to activities, converting H2S from waste process is environmentally attractive. This paper focuses on conversion elemental sulfur (S°) other species (i.e., sulfite ion (SO32-); sulfate (SO42-) using Fenton reagent. The effects some reaction parameters such as ...

Abstract: Xerogel is a typical porous material with large internal surface area, causing them to have significant gas adsorption. Adsorption performance was investigated determine the potential contribution of xerogel removing Hydrogen Sulphide (H2S) in this research. well-known energy-efficient approach for acid gases at low temperatures. H2S harms human health, such as headaches, eye irritati...

Several bioreactor systems are used for biological treatment of hydrogen sulfide. Among these, airlift bioreactors are promising for the bioconversion of hydrogen sulfide into elemental sulfur. The performance of airlift bioreactors is not adequately understood, particularly when directly fed with hydrogen sulfide gas. The objective of this paper is to investigate the performance of an airlift ...

Many commercial processes are available for the removal of H2S from gaseous streams. The desulfurization of gas streams using aqueous ferric sulfate solution as washing liquor is studied. Apart from sulfur, only H2O is generated in the process, and consequently, no waste treatment facilities are required. A distinct advantage of the process is that the reaction of H2S with is so rapid and compl...

Although biochars made in laboratory seem to remove H2S and odorous compounds effectively, very few studies are available for commercial biochars. This study evaluated the efficacy of a biochar (CBC) removing volatile organic (VOCs). We found that well-known Ergun equation may not be adequate predicting pressure drop properly sizing ventilation system. The breakthrough adsorption capacity CBC w...

Bioenergy is a type of renewable energy made from biological sources including algae, trees, or waste from agriculture, wood processing, food materials, and municipalities. Currently, the uses of renewable fuels (bioethanol, biodiesel, biogas and hydrogen) are increased in the transport sector worldwide. From an environmental and resource-efficiency perspective biogas has several advantages in ...

Iron in groundwater is one of the problems that render the water unsuitable for drinking. The concentration above 0.3 mg/L is common in groundwater. The conventional method of removal is by precipitation under oxic condition. In this study, iron removal under anaerobic conditions was examined by batch experiment as a main purpose. The process involved by purging of groundwater samples with H2S ...

• Evaluation of experimental conditions for H 2 S adsorption capacity measurements. Desulphurisation performance porous materials at room temperatures is compared. Identification high performing metal oxides, activated carbon, zeolites and silicas. Analysis metal–organic frameworks with desulphurisation performance. Discussion future research directions temperature desulphurisation. When fuel g...

Sulphide (H2S, HS- and S2-) is an undesired by-product of biogas production processes. This modelling work in Aquasim was carried out to study three parallel processes related sulphide AD processes: 1) H2S liquid-gas mass transfer; 2) Acid-base equilibrium; 3) oxidation with different electron acceptors; nitrate, oxygen, a biotic anode given potential. Multiplicative Monod (biotic processes) Ne...

This study investigated the effect of HCl in biomass gasification producer gas on CO2 capture efficiency and contaminants removal by CaO-Fe2O3 based sorbent material calcium looping process. Experiments were conducted a fixed bed reactor to from with combined at 200 ppmv, H2S 230 NH3 2300 ppmv. The results show that presence feeding gas, reactivity for was enhanced. maximum achieved carbonation...