Biomethanation of Paper Mill liquid effluent through UASB reactor

A pilot scale UASB reactor designed to handle 6800 L of the liquid influent, was installed in GVG Paper Mill Industry, Udumalpet in Tamil Nadu. The COD of the influent varied from 4100 to 6500 10−3 kg/m3 during the experiments. The liquid waste was passed through the anaerobic reactor in up flow mod...

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Published in2016 2nd International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB) pp. 5 - 10
Main Authors Singaravelu, M., Gudo, Adam Juma Abdallah
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.02.2016
Subjects
Biogas
Biomethanation
Effluents
Inductors
Liquids
paper mill liquid effluent
Paper mills
Solids
specific biogas production
UASB reactor
Wastewater
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Summary:A pilot scale UASB reactor designed to handle 6800 L of the liquid influent, was installed in GVG Paper Mill Industry, Udumalpet in Tamil Nadu. The COD of the influent varied from 4100 to 6500 10−3 kg/m3 during the experiments. The liquid waste was passed through the anaerobic reactor in up flow mode, with a hydraulic retention time (HRT) of about 3, 6, 9, 12, and 15 h that correspond to the influent flow rates of 2.27, 1.13, 0.76, 0.57, 0.45 m3/h respectively. Each trial was conducted continuously for 10 days. The highest average biogas production of 9.3 m3 is obtained at 6 h HRT with the corresponding influent flow rate of 1.13 m3/ h. The calorific value of the biogas varies from 5122 to 5406 kcal/m3. The methane content varies from 50.7 to 62.4% . The reactor has the pay back period of 6 to 6.1 years. The 6 h HRT (1.13 m3/h of influent flow rate) can be recommended for biomethanation of paper mill liquid effluent in the designed UASB reactor of 6.8 m3 capacity.
DOI:10.1109/AEEICB.2016.7538384