Abstract：
:This study involves the application of new phase separated biological pretreatment (PSBP) strategy on microalgal biomass using the nickel nanoparticle induced cellulase secreting bacterial disintegration. Particularly, interest was focussed on cell wall weakening (CWW) of microalgae biomass besides the cell disintegration (CD) and release of organics. During CWW, protein, carbohydrate, cellulose, hemicellulose and DNA were used as evaluation indexes. Similarly, during CD, soluble chemical oxygen demand was used as evaluation index to assess the disintegration effect. A higher CWW was achieved at nickel nanoparticle (Np) dosage of 0.004 g/g SS. During CD, a clear demarcation in biomass solubilisation was achieved by PSBP (36%) than the sole biological pretreatment -BP (24%). The biomethanogenesis test results showed that enhanced methane production of 411 mL/g COD was achieved by PSBP than BP. Energy analysis showed that a higher net energy production of 6.467 GJ/d was achieved by PSBP.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Kavitha S,Schikaran M,Yukesh Kannah R,Gunasekaran M,Kumar G,Rajesh Banu Jdoi
10.1016/j.biortech.2019.121624subject
Has Abstractpub_date
2019-10-01 00:00:00pages
121624eissn
0960-8524issn
1873-2976pii
S0960-8524(19)30854-5journal_volume
289pub_type
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