Mesophilic and thermophilic biofiltration of gaseous toluene in a long-term operation: Performance evaluation, biomass accumulation, mass balance analysis and isolation identification

Analysis of Metabolites and Carbon Balance in the Biofilteration of Cumene Using Loofa Sponge as Biofilter Media

“…About 12.69 % carbon present in inlet cumene was converted to biomass fraction, which is a favorable condition for biofilter operation because at high conversion of carbon into biomass, it may result in choking of the biofilter. The conversion of carbon into biomass in the present study is similar to the results reported in literature [41][42][43].…”

“…Assuming cumene as a sole source of carbon for microorganism, the carbon present in cumene removed by biofilter was converted into four fractions [42], namely, CO 2 , organic carbon in leachate, biomass fraction, and outlet unconverted cumene.…”

Effect of saponins on n-hexane removal in biotrickling filters

“…Song et al (2012) report that Triton X-100 can also prevent the growth of microorganisms although at a lesser degree, and the pressure drop values for one BTF reached to about 130 Pa on in 70 days, while another BTF only increased to 80 Pa in which Triton X-100 existed. Wang et al (2012) also show that the increase of both the biomass concentration within the media and the pressure drop between the outlet and inlet occurred simultaneously during the whole operation period, which indicates that the pressure drop can be utilized as an index to monitor biomass concentration in packing media.…”

Interaction of gaseous aromatic and aliphatic compounds in thermophilic biofilters

“…That is mainly because aromatic and aliphatic VOCs are common gaseous contaminants and suitable for the treatment of biofilters [11][12][13][14][15]. Benzene and hexane is a typical aromatic and aliphatic VOCs, respectively, which are widely found in industrial air emissions such as chemical manufacturing plants and various hazardous sites [8,[14][15][16]. The thermophilic biofilter 1(TFB1) and the thermophilic biofilter 2 (TFB2) were operated to evaluate the effects of adding hexane on benzene (TFB1) and the effects of adding benzene on hexane (TFB1), respectively, which would help discover the interaction of these compounds.…”