[Adsorptive properties of various carriers on dibutyl phthalate degradation bacteria].
OBJECTIVE
Seeking cheap and effective carriers for adsorbing dibutyl phthalate (DBP) degradation dominant bacteria.


METHODS
Diatomite, clinoptilolite, silk zeolite and coal fly ash were selected as reserve materials and modified. The adsorptive capacity and intensity of each carrier to DBP degradation bacteria were measured.


RESULTS
The adsorptive capacity of coal fly ash, clinoptilolite, silk zeolite and diatomite to DBP degradation dominant bacteria was 1.66, 1.37, 1.49 and 1.16 times in turn to that of natural carriers. The comparative tests for each modified carrier indicated that the adsorptive capacity of diatomite, clinoptilolite, silk zeolite and coal fly ash was 94.4%, 84.0%, 71.6% and 44.2% in turn. The adsorptive intensity of above carriers was 91.1%, 90.1%, 90.5% and 72.1%. The degradation rate to 100 mg/L DBP in 24h was 90.2%, 89.9%, 76.3% and 62.4% successively.


CONCLUSIONS
The adsorptive capacity of diatomite, clinoptilolite, silk zeolite, and coal fly ash to DBP degradation dominant bacteria was enhanced after being modified. The adsorptive capacity and intensity from strong to weak was diatomite, clinoptilolite, silk zeolite, and coal fly ash.
School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China.
Lin
L
Wang
Qi-fang
QF
Luo
D000327:Adsorption; D001419:Bacteria / Q000378:metabolism*; D001673:Biodegradation, Environmental / Q000187:drug effects; D002244:Carbon / Q000737:chemistry; D060729:Coal Ash; D007692:Diatomaceous Earth / Q000737:chemistry*; D003993:Dibutyl Phthalate / Q000378:metabolism*; D052244:Endocrine Disruptors / Q000378:metabolism*; D004785:Environmental Pollutants / Q000378:metabolism*; D052638:Particulate Matter / Q000737:chemistry; D017641:Zeolites / Q000737:chemistry
D060729:Coal Ash; D052244:Endocrine Disruptors; D004785:Environmental Pollutants; D052638:Particulate Matter; C083175:clinoptilolite; D017641:Zeolites; D003993:Dibutyl Phthalate; D007692:Diatomaceous Earth; C033787:diatomite; D002244:Carbon