BIOGAS ASIA PACIFIC FORUM Review of POME biogas plants operational results:

BIOTEC experience in Asia, Africa and South America

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Content

1 • Biotec Introduction

2 • Our Technologies

3 • Operational Results Presentation

4 • Conclusion: Lessons Learnt

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Our vision is to work for a green Planet

fed by organic agriculture and moved

by renewable energy while ensuring a

sustainable social development for Humanity

INTRODUCTION: Biotec Vision

Founder : Mr. Phillipe Conil Biological Engineer by

Profession

Belgium

Malaysia

Indonesia

Argentina

Colombia

Honduras 100 employees

6 offices worldwide Projects foot print

in 3 Continents

South America Africa South East Asia

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INTRODUCTION: Biotec Milestone

Founded in Belgium, 1984

Our Technologies

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Bio-digester Models • UASB – Upflow Anaerobic Sludge Blanket • RAC ® - Anaerobic Contact Reactor • RAFAC ® - Reactor Upflow Anaerobic Contact • BIOSECO ® - Dry Biodigestion model (biomass solid)

Ferti-irrigation • FORLIM® - Fully-monitored Liquid Organic Fertilization System • Fertilizer + irrigation system

Composting • Aerobic process onto organic matter • Shorter composting time

Energy

Environment Agriculture

Our Technologies

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To Grid

Biogas Engine

Flare

Bio-digester

Gas Management

Treated Effluent Ferti-irigation

Composting

Green Energy

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Our Expertise

Engineering • Feasibility study • Design • Project management

Construction • Procurement • Supervision • Commissioning

Operations &

Maintenance

CDM Monitoring

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Content

1 • Biotec Introduction

2 • Our Technologies

3 • Operational Results Presentation

4 • Conclusion: Lessons Learnt

Operational Results Presentation

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Locations • Latin America: 8 plants in operation / 1 project in construction • Africa: 2 plants in operation / 1 project commissioning • Asia: 6 plants in operation / 3 projects in construction

Periods of assessment • Ranges from 2006 to end 2014 • Plants handed over to client: 9 units • Plants under Biotec operation in 2014: 7 units

Key parameters • Mill parameters (POME generation, COD) • Biogas plant operational results (COD removal, gas production, gas

quality) • Biogas usage (electricity generation)

Operational Results: COD

10

10

20

30

40

50

60

70

80

90

COD concentration

kg COD / TFFB

kg COD / m3

• COD in Latin America < COD in SEA mills (dilution effect) • Load of COD per TFFB ~ 54 kg/TFFB (Relatively stable ratio across the world)

Latin America SEA Africa

Operational Results: POME Generation

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0.87 0.87

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

m3 POME / TFFB

m3 POME / TFFB

Average

• Mills in SEA use less water

Operational Results: COD Removal

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85.6% 85.6%

60%

65%

70%

75%

80%

85%

90%

95%

COD Removal Efficiency

COD RemovalEfficiency

Average

• Average HRT in BIOTEC digesters: 25 days • Average COD removal efficiency: 85% • COD removal efficiency is closely linked to sludge management

Operational Results: CH4 Content

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56.9% 56.9%

44%

46%

48%

50%

52%

54%

56%

58%

60%

62%

% CH4

• Average CH4% in BIOTEC plants: 56.9% • Difference between LA > SEA • More diluted POME tends to give slightly better CH4%

Operational Results: H2S concentration

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275 275

0

100

200

300

400

500

600

700

800

H2S concentration prior to biogas engine (ppm)

H2S Concentrationprior to biogasengine

Average

• BIOTEC plants H2S prior to scrubbers: ~1,200 ppm • H2S average post scrubbers (prior to engines): 275 ppm

Operational Results: CH4 Capture

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14.1 14.1

0

2

4

6

8

10

12

14

16

18

20

Nm3 CH4 / TFFB

Nm3 CH4 / TFFB

Average

• On average BIOTEC plants: 14 Nm3 CH4/TFFB or 25 Nm3 biogas /TFFB • This equates to a range of 28 to 35 Nm3 biogas / m3 POME • SEA biogas plants < LA biogas plant in biogas capture (impact of high COD & dilution?)

Operational Results: Electricity Generation

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46.5 46.5

25

30

35

40

45

50

55kWh generated / TFFB

kWh generated / TFFB

Average

• On average for domestic and export production: 3.8 kWh/Nm3 CH4 • Average electrical production: 46.5 kWh / TFFB

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Content

1 • Biotec Introduction

2 • Our Technologies

3 • Operational Results Presentation

4 • Conclusion: Lessons Learnt

Lessons learnt

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On implementation • Importance of sound design and feedback from operation • Need of robust solutions & materials • Efficiency of system VS reliability • Importance of sizing and stability of organic matter production in

the industry

On operation • Importance of training of local operators • Few companies implement AND operate: continuous improvement • Importance of automation and monitoring • Mill process variables influence the output of the biogas plant • Regional variations impact process results

In A Nice Kitchen, Have A Good Cook!

Biotec Company Introduction - 2014_10

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