Hydrogen sulfide (H 2 S) is a toxic gas released from natural occurrences (such as
volcanoes, hot springs, municipal waste decomposition) and human economic activities …

The main aim of this study was to evaluate the performance of an aerobic biofilter packed
with compost for the removal of gas-phase hydrogen sulfide (H 2 S). After 52 d of operation …

This study reports the immobilization of invertase in the PVA–alginate matrix via a modified
method. The PVA–alginate modified method involved the treatment of immobilized beads in …

Granule-base immobilization of biomass is a potential method for a decent quality granular
sludge cultivation. In this study, 3D polyvinyl alcohol (PVA) gel beads were chemically cross …

This paper presents an innovative technique of immobilizing Baker's yeast invertase using
polyvinyl alcohol (PVA)–alginate matrix. Previous immobilization technique was improved …

A biofiltration system with sulfur oxidizing bacteria immobilized on granular activated carbon
(GAC) as packing materials had a good potential when used to eliminate H2S. The sulfur …

Hydrogen sulfide (H 2 S) is extremely toxic to living organisms and plants. H 2 S gas
contamination may be treated by both chemical and physical methods but they have high …

In this study, the activities of hydrogen sulphide (H 2 S) oxidation and nitrate (N-NO 3−)
reduction by three pure and mixed strains of nitrate-reducing, sulphide oxidizing bacteria …

Many industrial activities produce H 2 S, which is toxic at high levels and odorous at even
very low levels. Chemolithotrophic sulfur-oxidizing bacteria are often used in its remediation …

Highlights•H 2 S biofiltration was carried out under extreme acidic conditions.•Expanded
schist topped with a nutritional material UP20 was used as packing material.•A maximum …