餐厨垃圾直接发酵生产生物质丁醇的研究  

BIO-BUTANOL PRODUCTION FROM DIRECT FERMENTATION OF KITCHEN WASTES

作　　者：王永林 高明 BODJUI Olivier Abo 王芳霞 汪群慧 WANG Yong-lin;GAO Ming;BODJUI Olivier Abo;WANG Fang-xia;WANG Qun-hui(School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;Beijing Key Laboratory on Disposal and Resource Recovery of Industry Typical Pollutants, Beijing 100083, China)

机构地区：[1]北京科技大学能源与环境工程学院,北京100083 [2]北京市工业典型污染物资源化处理重点实验室,北京100083

出　　处：《环境工程》2019年第4期137-142,共6页Environmental Engineering

基　　金：国家自然科学基金项目(51708024);北京市自然科学基金项目(8182035);教育部重点实验室开放基金资助项目(SWMES2017-05);中央高校基本科研业务费资助项目(FRF-TP-16-061A1);中国博士后面上基金资助项目(2017M610774)

摘　　要：为考察餐厨垃圾不糖化直接进行产丁醇发酵的可行性,优选高效利用淀粉产丁醇梭菌Clostridium saccharoperbutylacetonicum N1-4,并发现不同来源和构型的淀粉对发酵有影响,且直链淀粉更易于被利用。餐厨垃圾直接发酵比糖化发酵效率高,且可避免底物抑制。在固液比1∶1条件下,餐厨垃圾直接发酵丁醇产量达到12. 1 g/L,丁醇碳转化率为0. 402,最大生产速率为0. 705 g/(L·h);固液比1∶2条件下,直接发酵最大生产速率是糖化发酵的2. 05倍。餐厨垃圾发酵产丁醇,可在解决环境问题的同时,为丁醇生产提供廉价原材料。Feasibility of direct butanol production from kitchen wastes (without enzymatic saccharification) was investigated in this study.Preferably selected and high-efficient starch was used to produce Clostridium saccharoperbutylacetonicum N1-4, and it was discovered that the starch from different sources and configurations had an influence on fermentation, and amylose was easier to be utilized.Further, direct fermentation of kitchen wastes exhibited a higher efficiency than saccharification fermentation, and could also avoid substrate inhibition, when the solid-liquid ratio (SIR) was 1 ∶1, 12.1 g/L butanol was produced from direct fermentation of kitchen wastes with the butanol-carbon conversion rate being 0.402 C-mol/C-mol and the maximum butanol production rate being 0.705 g/(L ·h);when the SIR was 1 ∶2, the maximum butanol production rate from direct fermentation was 2.05 times that from saccharification fermentation.Thus, the butanol produced from fermentation of kitchen wastes provided cheap raw materials for butanol production while solving the environmental problems.

关 键 词：餐厨垃圾 直接发酵 淀粉 生物质丁醇 CLOSTRIDIUM saccharoperbutylacetonicum 

分 类 号：X799.3[环境科学与工程—环境工程]