Abstract：
:Alkaline pretreatment of lignocellulosic biomass has been intensively investigated but heavy water usage and environmental pollution from wastewater limits its industrial application. This study presents a pretreatment technique by in-situ injection of potassium hydroxide concentrations ranging from 0.8% to 10% (w/w) into the briquetting process of wheat straw and meadow grass. Results show that the biomethane yield and hydrolysis rate was improved significantly with a higher impact on wheat straw compared to meadow grass. The highest biomethane yield from wheat straw briquettes of 353mL.g-1 VS was obtained with 6.27% (w/w) potassium hydroxide injection, which was 14% higher than from untreated wheat straw. The hydrolysis rates of wheat straw and meadow grass increased from 4.27×10-2 to 5.32×10-2d-1 and 4.19×10-2 to 6.00×10-2d-1, respectively. The low water usage and no wastewater production make this a promising technology.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Feng L,Moset V,Li W,Chen C,Møller HBdoi
10.1016/j.biortech.2017.05.032subject
Has Abstractpub_date
2017-09-01 00:00:00pages
258-265eissn
0960-8524issn
1873-2976pii
S0960-8524(17)30671-5journal_volume
239pub_type
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