References

1. Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the Promotion of the Use of Energy from Renewable Sources and Amending and Subsequently Repealing Directives 2001/77/EC and 2003/30/EC.
2. F. Talebnia, D. Karakashev, I. Angelidaki, Production of bioethanol from wheat straw: an overview on pretreatment, hydrolysis and fermentation, Bioresour. Technol., 101 (2010) 4744–4753.
3. B.F. Chong, M.D. Harrison, I.M. O’Hara, Stability of endoglucanases from mesophilic fungus and thermophilic bacterium in acidified polyols, Enzyme Microb. Tech., 61–62 (2014) 55–60.
4. A.T.W.M. Hendriks, G. Zeeman, Pretreatments to enhance the digestibility of lignocellulosic biomass, Bioresour. Technol., 100 (2009) 8–10.
5. Y.B. Huang, Y. Fu, Hydrolysis of cellulose to glucose by solid acid catalysts, Green Chem., 6 (2013) 1095–1111.
6. C. Martín, J. Puls, B. Saake, A. Schreiber, Effect of glycerol pretreatment on component recovery and enzymatic hydrolysis of sugarcane bagasse, Cellulose Chem. Technol., 7–8 (2011) 487–494.
7. F.B. Sun, H.Z. Chen, Evaluation of enzymatic hydrolysis of wheat straw pretreated by atmospheric glycerol autocatalysis, J. Chem. Technol. Biotechnol., 82 (2007) 1039–1044.
8. X.B. Zhao, K.K. Cheng, D.H. Liu, Organosolv pretreatment of lignocellulosic biomass for enzymatic hydrolysis, Appl. Microbiol. Biotechnol., 82 (2009) 815–827.
9. W. Kricka, J. Fitzpatrick, U. Bond, Challenges for the production of bioethanol from biomass using recombinant yeasts, Adv. Appl. Microbial., 92 (2015) 89–125.
10. K.K. Cheng, X.B. Zhao, J. Zeng, J.A. Zhang, Biotechnological production of succinic acid: current state and perspectives, Biofuels, Bioprod. Biorefin., 6 (2012) 302–318.
11. H. Song, S.Y. Lee, Production of succinic acid by bacterial fermentation, Enzyme Microb. Technol., 39 (2006) 352–361.
12. J. Bohdziewicz, M. Kuglarz, Treatment of post-digestion liquors with the application of struvite precipitation and reverse osmosis, Desal. Wat. Treat., 51 (2013) 366–373.
13. M. Kuglarz, J. Bohdziewicz, Pre-treatment of co-digestion effluents before reverse osmosis (RO) application, Desal. Wat. Treat., 51 (2013) 4872–4880.
14. M. Kuglarz, K. Grübel, J. Bohdziewicz, Chemical precipitation and ammonia air stripping as effective pre-treatment methods before membrane filtration of co-digestion effluents, Desal. Wat. Treat., 55 (2015) 1672–1682.
15. D. Ryan, A. Gadd, J. Kavanagh, G.W. Barton, Integrated biorefinery wastewater design, Chem. Eng. Res. Des., 87 (2009), 1261–1268.
16. J.M. Prodanović, V.M. Vasic, Application of membrane processes for distillery wastewater purification – a review, Desal. Wat. Treat., 51 (2013) 3325–3334.
17. I.B. Gunnarsson, M. Kuglarz, D. Karakashev, I. Angelidaki, Thermochemical pretreatments for enhancing succinic acid production from industrial hemp (Cannabis sativa L.), Bioresour. Technol., 182 (2015) 58–66.
18. M. Kuglarz, M. Alvarado-Morales, D. Karakashev, I. Angelidaki, Integrated production of cellulosic bioethanol and succinic acid from industrial hemp in a biorefinery concept, Bioresour. Technol., 200 (2016) 639–647.
19. APHA, Standard Methods for the Examination of Water and Wastewater, 21st ed, American Public Health Association Fed., Washington DC, USA, 2005.
20. M. Kuglarz, I.B. Gunnarsson, S.E. Svensson, T. Prade, E. Johansson, I. Angelidaki, Ethanol production from industrial hemp: effect of combined dilute acid/steam pretreatment and economic aspects, Bioresour. Technol., 163 (2014) 236–243.
21. Z. Barta, J.M. Oliva, I. Ballesteros, D. Dienes, M. Ballesteros, K. Réczey, Refining hemp hurds into fermentable sugars or ethanol, Chem. Biochem. Eng. Q., 24 (2010) 331–339.
22. P. Varanasi, P. Singh, M. Auer, P.D. Adams, B.A. Simmons, S. Singh, Survey of renewable chemicals produced from lignocellulosic biomass during ionic liquid pretreatment, Biotechnol. Biofuels, 6 (2013) 14.
23. B. Xiong, T.L. Richard, M. Kumar, Integrated acidogenic digestion and carboxylic acid separation by nanofiltration membranes for the lignocellulosic carboxylate platform, J. Membr. Sci., 489 (2015) 275–283.
24. K. Sasaki, Y. Tsuge, D. Sasaki, H. Teramura, S. Wakai, H. Kawaguchi, T. Sazuka, C. Ogino, A. Kondo, Increased ethanol production from sweet sorghum juice concentrated by a membrane separation process, Bioresour. Technol., 169 (2014) 821–825.
25. A.C.D. Salazar, M.A.G. Garcia, J. Fontalvo, M. Jedrzejczyk, J.M. Rynkowski, I. Dobrosz-Gomez, Ethanol dehydration by pervaporation using microporous silica membranes, Desal. Wat. Treat., 51 (2013) 2368–2376.
26. P. Kaewkannetra, N. Chutinate, S. Moonamart, T. Kamsan, T.Y. Chiu, Experimental study and cost evaluation for ethanol separation from fermentation broth using pervaporation, Desal. Wat. Treat., 41 (2012) 88–94.
27. Y.H. Cho, H.D. Lee, H.B. Park, Integrated membrane processes for separation and purification of organic acid from a biomass fermentation process, Ind. Eng. Chem. Res., 51 (2012) 1020710219.
28. K.-Q. Chen, J.A. Li, J.F. Ma, M. Jiang, P. Wei, Z.-M. Liu, H.J. Ying, Succinic acid production by Actinobacillus succinogenes using hydrolysates of spent yeast cells and corn fiber, Bioresour. Technol., 102 (2011) 1704–1708.