BIODEGRADATION OF H2S AND NH3-LADEN AIR STREAM USING COMPOST-PIECES OF HARD PLASTICS FILTER MEDIA

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TAGHIPOUR H.; SHAHMANSOURY M.R.; BINA B.; MOVAHDIAN H.

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Journal: THE APPLICATION OF CHEMISTRY IN ENVIRONMENT Year:2010 | Volume:1 | Issue:4 Page(s): 49-58

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Title

BIODEGRADATION OF H2S AND NH3-LADEN AIR STREAM USING COMPOST-PIECES OF HARD PLASTICS FILTER MEDIA

Author(s)

TAGHIPOUR H. | SHAHMANSOURY M.R. | BINA B. | MOVAHDIAN H. | Issue Writer Certificate

Keywords

BIOFILTRATIONQ2

AMMONIAQ2

HYDROGEN SULFIDEQ3

COMPOSTQ2

ELIMINATION CAPACITYQ3

Abstract

Biotreatment of mixtures of H2S and NH3 gas at various ratios was studied using a three-stage bench-scale bio filter inoculated with thickened municipal activated sludge and packed with a mixture of COMPOST and pieces of hard plastic as a novel biofilter medium. This study investigated the ELIMINATION CAPACITY, the removal efficiency, and variations of pH in the packing material, and the effect of inlet loads of H2S on the removal of NH3. At a loading rate of 8.32g NH3/m3 h and 8.32g H2S/m3h (concentration ratio of 2: 1) and an empty bed residence time of 60 s, the biofilter had an ELIMINATION CAPACITY of 8.22g NH3/m3 h and 7.42g H2S/m3 h with a removal efficiency of 98.8% and 89.18%, respectively. At a loading rate of 8.32g NH3/m3 h and 16.64g H2S/m3 h (concentration ratio of 1: 1), an ELIMINATION CAPACITY of 7.48g NH3/m3 h and 15.03g H2S/m3 h, and a removal efficiency of 90% and 90.3%, respectively, was observed. Nevertheless, at a loading rate of 4.16g NH3/m3 h and 16.64g H2S/m3h (concentration ratio of 1: 2) under same conditions, the ELIMINATION CAPACITY and removal efficiency for NH3 was reduced to about 3g NH3/m3 h and 72.34%, respectively. The H2S ELIMINATION CAPACITY and removal efficiency remained high at 14.90g H2S/m3h and 90.11%, respectively. The reduction of AMMONIA ELIMINATION CAPACITY, in spite of a decreased NH3 loading rate was due to the acidification of the packing material and reduction of the pH value from 7.4 to 6.6. The Results indicated that the oxidation of a large amount of H2S would involve some environmental stress on nitrification bacterial growth and activity.

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APA: Copy

TAGHIPOUR, H., SHAHMANSOURY, M.R., BINA, B., & MOVAHDIAN, H.. (2010). BIODEGRADATION OF H₂S AND NH₃-LADEN AIR STREAM USING COMPOST-PIECES OF HARD PLASTICS FILTER MEDIA. THE APPLICATION OF CHEMISTRY IN ENVIRONMENT, 1(4), 49-58. SID. https://sid.ir/paper/236285/en

Vancouver: Copy

TAGHIPOUR H., SHAHMANSOURY M.R., BINA B., MOVAHDIAN H.. BIODEGRADATION OF H₂S AND NH₃-LADEN AIR STREAM USING COMPOST-PIECES OF HARD PLASTICS FILTER MEDIA. THE APPLICATION OF CHEMISTRY IN ENVIRONMENT[Internet]. 2010;1(4):49-58. Available from: https://sid.ir/paper/236285/en

IEEE: Copy

H. TAGHIPOUR, M.R. SHAHMANSOURY, B. BINA, and H. MOVAHDIAN, “BIODEGRADATION OF H₂S AND NH₃-LADEN AIR STREAM USING COMPOST-PIECES OF HARD PLASTICS FILTER MEDIA,” THE APPLICATION OF CHEMISTRY IN ENVIRONMENT, vol. 1, no. 4, pp. 49–58, 2010, [Online]. Available: https://sid.ir/paper/236285/en

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