حذف فرم آلدئید از جریان هوا با استفاده از بیوفیلتر حاوی مخلوطی از بستر خرده چوب و کمپوست

رضائی, محسن and فضل زاده دویل, مهدی and حاجی زاده, یعقوب (1393) حذف فرم آلدئید از جریان هوا با استفاده از بیوفیلتر حاوی مخلوطی از بستر خرده چوب و کمپوست. Water, Air, & Soil Pollution ــ 226 (1). pp. 1-10. شاپا 0049-6979

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Official URL: http://link.springer.com/article/10.1007/s11270-01...


Formaldehyde Removal from Airstreams Using a Biofilter with a Mixture of Compost and Woodchips Medium

English Abstract

The performance of a laboratory-scale biofilter packed with amixture of compost and woodchip on formaldehyde removal from polluted air streams was investigated. The reactor was inoculated with aerobic sludge as a source of bacteria, obtained from a municipal wastewater treatment plant. A nutrient solution was daily added to the reactor media. An airflow containing different concentrations of formaldehyde (from 20±2 to 276± 5 mg m−3) was introduced into the reactor. In inlet formaldehyde concentration, an average removal efficiency and elimination capacity of 91 % and 0.36 g m−3 h−1 were attained, respectively, at180 s empty bed residence time (EBRT). After acclimatization of the system for increased formaldehyde concentrations of up to 276±5 mg m−3 and for EBRT of 180 s, those values were stabilized at around 72 % and 3.98g−3 h−1, respectively. The experimental results showed that the system was effective for a high loading rate of formaldehyde with an acceptable EBRT. Compared to the application of compost alone as a media, a mixture of compost and woodchip (50/50v/v%) enhanced the performance of the biofilter. The most predominant microorganism involved in the biodegradation of formaldehyde was a species of citrobacter called Citrobacter freundii, an aerobic gram-negative bacillus. Pressure drop of the reactor over the entire operations was about 1 mmH2Om−1.

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :محسن رضائی
نویسنده :مهدی فضل زاده دویل
نویسنده مسئول :یعقوب حاجی زاده
Additional Information:Impact Factor : 1.685 Abstracted/Indexed in : Science Citation Index, Science Citation Index Expanded (SciSearch), Journal Citation Reports/Science Edition, SCOPUS, INSPEC, EMBASE, Chemical Abstracts Service (CAS), Google Scholar, EBSCO, CSA, ProQuest, CAB International, Academic OneFile, AGRICOLA, ASFA, Biological Abstracts, BIOSIS, CAB Abstracts, Chimica, CSA Environmental Sciences, Current Contents/ Agriculture, Biology & Environmental Sciences, EI Encompass, EI-Compendex, Elsevier Biobase, EnCompassLit, Environment Index, Fluidex, Food Science and Technology Abstracts, Gale, GeoArchive, Geobase, GeoRef, Global Health, INIS Atomindex, International Bibliography of Book Reviews (IBR), International Bibliography of Periodical Literature (IBZ), OCLC, PASCAL, SCImago, Summon by ProQuest, Zoological Record
کلیدواژه ها (انگلیسی):Biofiltration , Bioreactor , Formaldehyde , Air pollution
Subjects:WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
Divisions:Faculty of Health > Department of Environmental health
ID Code:6206
Deposited By: Engineerin Mahdi Fazlzadeh
Deposited On:01 Oct 1393 06:23
Last Modified:01 Oct 1393 06:23

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