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KH?O ST HI?N TR?NG V TI?M N?NG ?NG D?NG H?M ? BIOGAS ? M?T S? X THU?C T?NH TI?N GIANG

T?p ch Khoa h?c Tr??ng ??i h?c C?n Th? s? 28 (2013): 80-85 Tc gi?: ?o Mai Trc Qu?nh, Nguy?n V Chu Ngn, Jan B...

Factors Influencing the Adoption of small-scale biogas digesters in developing countries - Empirical

The use of small-scale biogas digesters among farmers and households in rural areas of developing co...

?NG D?NG M HNH KH SINH H?C HDPE C?I TI?N V?I NGUYN LI?U N?P R?M V L?C BNH S?N XU?T BIOGAS

1. Gi?i thi?u m hnh kh sinh h?c lo?i HDPE c?i ti?n Vi?c ?ng d?ng m hnh kh sinh h?c trong x? l ch?t th?i ch?...

Publicaions in 2016 - 2017

STT Tn bi bo Abstract -E Abstract -VN 1 Ngo Thi Thanh Truc, Tran...

Biogas production from corn (Zea mays) stalks: effects of size

Study on size effects of corn stalks for biogas production was evaluated for three differe...

  • KH?O ST HI?N TR?NG V TI?M N?NG ?NG D?NG H?M ? BIOGAS ? M?T S? X THU?C T?NH TI?N GIANG

  • Factors Influencing the Adoption of small-scale biogas digesters in developing countries - Empirical

  • ?NG D?NG M HNH KH SINH H?C HDPE C?I TI?N V?I NGUYN LI?U N?P R?M V L?C BNH S?N XU?T BIOGAS

  • Publicaions in 2016 - 2017

  • Biogas production from corn (Zea mays) stalks: effects of size

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Tong ket hoi thao
poster chi - eng
poster hong - eng

APPLY PADDY STRAW FOR ENERGY PRODUCTION TO REDUCE IN SITU STRAW BURNING IN THE MEKONG DELTA OF VIETNAM

Tc gi?:Nguyen Vo Chau Ngan, Nguyen Minh Tung, Tran Sy Nam, Nguyen Huu Chiem, Le Hoang Viet, Kjeld Ingvorsen

Papers of the 23rdEuropean biomass conference, 1-4 June 2015.

ABSTRACT:

The Mekong Delta - a rice bowl of Vietnam - discharges around 30 million tons of paddy straw annually but most of straw is in situ burning that causes loss of precious nutrients and polluting the environment. Meanwhile, anaerobic technology was introduced in the region for long time but not yet become popular due to lack of input materials. The lab-scale 20 L anaerobic digesters were applied to co-ferment paddy straw (with sizes of 1.0 cm, 10.0 cm, 20.0 cm, original size) and pig manure (mixing ratio of 50%:50% based on their organic dry matter values) in 60 continuous days. The recorded values of temperature (25.3 to 30.30C), pH (6.74 0.18), and redox potential (316.4 to -128.2 mV) of almost treatments were suitable for activities of methanogenic micro-organisms. The biogas yield of treatment with straw size of 1.0 cm was 691.05 L/kg ODMfermented, of 10.0 cm - 687.79 L/kg ODMfermented, of 20.0 cm - 685.08 L/kg ODMfermentedand original size - 680.44 L/kg ODMfermentedwhich significant different to the treatment of 100% pig manure. The results confirmed rice straw could apply as additional material to the pig manure at anaerobic digester to produce biogas that eliminates in situ straw burning.

Keywords:anaerobic co-fermentation, paddy straw, in situ straw burning, the Mekong Delta of Vietnam