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Effects of Fermentation Time and Additional Volume of Water in Biogas Production Process
(Universitas Muhammadiyah Surakarta, 2014-03)
Water hyacinth (Eichornia crassipes) is one type of crop or weeds that normally live in the water, floating in
the water, and develop shallow roots in the mud. This plant can grow exponentially, giving rise to many
problems. ...