BIOLOGICAL REMOVAL OF HYDROGEN SULPHIDE FROM LANDFILL SITE BIOGAS - - PowerPoint PPT Presentation

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Sep 28, 2022 107 likes •267 views

BIOLOGICAL REMOVAL OF HYDROGEN SULPHIDE FROM LANDFILL SITE BIOGAS Rania Ibrahim 1 , Shahram Navaee-Ardeh 1 , Hubert Cabana 1 1 Department of Civil Engineering, University of Sherbrooke, 2500 Boulevard de lUniversit, Sherbrooke, Qubec, J1K

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BIOLOGICAL REMOVAL OF HYDROGEN SULPHIDE FROM LANDFILL SITE BIOGAS

Rania Ibrahim1, Shahram Navaee-Ardeh1, Hubert Cabana1

1Department of Civil Engineering, University of Sherbrooke, 2500 Boulevard de

l’Université, Sherbrooke, Québec, J1K 2R1, Canada

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Outlines

■Introduction ■Study objectives ■Materials and Methods ■Results ■Conclusions

1 7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Introduction

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Introduction

Composition of biogas in landfjll site

CH4 ; 53,6000 CO2 ; 43,0800 O2 ; 0,4100 H2S ; 0,0014

CH4 CO2 O2 H2S

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Introduction

Background and problem justifjcation

Biogas: CH4 CO2 Bio- methanol Bio- hydrogen

Anaero bic digesti

H2S

hydrogenerati

Reforming

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Introduction

Background and problem justifjcation

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Study objectives

■Determine the performance of the lab Scale biofjlter for removing the H2S contained in the synthetic biogas. ■Remove the hydrogen sulphide from real biogas by biological oxidation process.

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Materials and Methods

Biological Hydrogen Sulphide Removal T echniques

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

Gabriel and Dehusses 2003)

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Materials and Methods

Operation conditions

Volume (L) 1 Flow rate (L/min) 0.5 - 1 EBRT (min) 1 - 2 H2S (ppmv) 735 – 2000 CO2 (%) 20 Air (Humide) Balance 8

Laboratory scale bioreactor

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Materials and Methods

Operation conditions BTF1 BTF2

Volume (L) 110 25 Flow rate (L/min) 2.3 1.2 HRT (min) 3.9 0.9 H2S (ppmv) 900-1220 100 pH 2 7 Air 4%

Pilot scale bioreactor

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Results

Biodegradation test of H2S in the laboratory

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Results

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The performance of the pilot scale biofjltration treatment system on landfjll site

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

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Conclusions

■The biofjltration system, containing stainless-steel pall rings as a fjlter material, removed H2S with effjciencies ranged between 94% and 97 % for inlet H2S concentrations at the range of 900 to 1500 ppmv. ■Approximately 50 ppmv of H2S gas was detected in the outlet gas. ■It was observed that the high concentration of chrome, iron and nickel were leached to the produced liquid. These contaminants came from the packing media used (consisting essentially of stainless steel) and not from the biogas treatment.

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Acknowledgements

■Prof. Hubert Cabana ■Dr. Shahram Navaee-Ardeh ■Natural Sciences and Engineering Research Council of Canada (NSERC) ■Olivier Savary

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Thank you!

7TH INTERNATIONAL CONFERENCE ON SUSTAINABLE SOLID WASTE MANAGEMENT

Rania.Ibrahim@usherbro

ke.ca