Feather is produced in large amounts as a waste in poultry slaughterhouses. Only 60 70 of the poultry slaughterhouse products is edible for human. 16 20 of the slaughterhouse by products contains keratin from this 7 9 consists of feather with 50 70 moisture content. Treatment of poultry feather anaerobically is a challenge, because of the complex, rigid, and fibrous structure of keratin, the main component of feathers. Under anaerobic conditions, poultry feather degrades poorly, which is the main obstacle for anaerobic digestion. The reported value of chicken feather methane potential is 0.19 – 0.20Nm3 kg VS, which is only one third of the theoretical value. It is an excellent raw material for biogas production due to high protein content. Dried chicken feathers contain about 90 proteins with 0.2 methane potential m3 kg 1 VS added and 0.05 methane potential m3 kg 1 wet weight . The keratin content of feather is difficult to digest, so physical, chemical and or biological pre treatment are needed in practice, which have to be set according to the utilization method. Feather was degraded with the help of enzyme and then digested in anaerobic bioreactors in different ratios. We used cattle slurry as control without feather. Our main objectives for this study were to determine the effect of enzymatic pre treatment, biogas methane potential of feather waste and the most effective treatment ratios. Chicken feather waste can also be digested or used with other feedstock as a co digestion substrate. Srinivas Kasulla | S J Malik "Enzymatic Pre-Treatment of Chicken Feather Waste to Generate Biogas" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd43853.pdf Paper URL: https://www.ijtsrd.com/other-scientific-research-area/enviormental-science/43853/enzymatic-pretreatment-of-chicken-feather-waste-to-generate-biogas/srinivas-kasulla
International Journal of Trend in Scientific Research and Development (IJTSRD)
Volume 5 Issue 5, July-August 2021 Available Online: www.ijtsrd.com e-ISSN: 2456 – 6470
@ IJTSRD | Unique Paper ID – IJTSRD43853 | Volume – 5 | Issue – 5 | Jul-Aug 2021
Page 510
Enzymatic Pre-Treatment of Chicken
Feather Waste to Generate Biogas
Srinivas Kasulla
1
, S J Malik
2
1Waste to Energy Expert, Hyderabad, Telangana, India
2Biogas Expert, Pune, Maharashtra, India
ABSTRACT
Feather is produced in large amounts as a waste in poultry
slaughterhouses. Only 60‐70% of the poultry slaughterhouse products
is edible for human. 16‐20% of the slaughterhouse by‐products
contains keratin; from this 7-9% consists of feather with 50‐70%
moisture content. Treatment of poultry feather anaerobically is a
challenge, because of the complex, rigid, and fibrous structure of
keratin, the main component of feathers. Under anaerobic conditions,
poultry feather degrades poorly, which is the main obstacle for
anaerobic digestion. The reported value of chicken feather methane
potential is 0.19– 0.20Nm3 /kg VS, which is only one third of the
theoretical value. It is an excellent raw material for biogas production
due to high protein content. Dried chicken feathers contain about
90% proteins with 0.2 methane potential (m3 kg‐1 VS added) and
0.05 methane potential (m3 kg‐1 wet weight). The keratin‐content of
feather is difficult to digest, so physical, chemical and/or biological
pre‐treatment are needed in practice, which have to be set according
to the utilization method. Feather was degraded with the help of
enzyme and then digested in anaerobic bioreactors in different ratios.
We used cattle slurry as control without feather. Our main objectives
for this study were to determine the effect of enzymatic
pre‐treatment, biogas methane potential of feather waste and the most
effective treatment ratios. Chicken feather waste can also be digested
or used with other feedstock as a co-digestion substrate.
KEYWO