摘要
研究以提取酒精后的木薯渣为主料,分别与秸秆、稻壳、烟叶粉、蘑菇渣等农业有机废弃物以不同的配比,添加1‰的热酶发酵剂,在热酶反应器中快速发酵,通过研究发酵产物的水分、总氮、总磷、钾、碳、p H、总养分、有机质、粗蛋白含量的变化,系统评估了木薯渣等有机固态废弃物热酶快速发酵资源化利用的可行性。试验结果表明:木薯渣与蘑菇渣按8∶2发酵终产物粗蛋白质为14.69%,总养分(N-P2O5-K2O干基计)达7.2%;木薯渣酒糟与秸秆粉按9∶1发酵终产物粗蛋白质为13.56%,总养分达7.35%;木薯渣酒糟与烟叶粉按9∶1发酵终产物中粗蛋白质为17.69%,总养分达5.51%;木薯渣酒糟与稻壳粉按9∶1发酵总养分从4 h的6.88%增加到24 h的7.31%,终产物粗蛋白质为12.94%,总养分至7.05%,上述各项检测指标均符合农业部NY-525有机肥标准。因此,利用热酶快速发酵工艺,木薯渣等有机固态废弃物经发酵处理后,可用于有机肥、鱼肥,部分也可作为饲料原料。
In this study, the feasibilities of resource utilization of cassava residue after extraction of alcohol as the main raw material and in different ratios of straw, rice husk, tobacco powder, mushroom and other agricultural or- ganic waste are respectively made a systematic assessment in the rapid thermophilic digestior by adding 1%~ thermal enzyme fermentation agent of total wet weight. The changes of moisture, nitrogen, phosphorus, potassium, carbon, pH, total nutrients, organic matter and crude protein content in final products are detected. The results show that crude protein content of the product of cassava residue and mushroom by 8：2 was 14.69% ,and the total nutrient content was 7.2% （N-P2O5-K20 dry basis） ;when Cassava residue and straw powder, tobacco powder and rice husk powder fermented respectively by the ratio of 9 ： 1, the crude protein contents of all the products were 13.56%, 17.69% and 12.94% the total nutrient contents were 7.35 % , 5.51% and 7.05 %. In addition, dur-ing the process of cassava lees and rice husk powder residue fermentation by 9： 1, total nutrient content between 4 h to 24 h, an increase from 6.88% to 7.31%, in the final product, the crude protein content was 12.94% , the total nutrient was 7.05%. The detection of these indicators were in line with the Ministry of Agriculture organic fer- tilizer NY-525 standard. Thus, cassava residue and other organic solid waste could be used in organic fertilizer, fish fertilizer, and some could also be used as feed ingredients by rapid thermophilic digestion system.
出处
《武汉轻工大学学报》
CAS
2014年第4期1-6,14,共7页
Journal of Wuhan Polytechnic University
关键词
木薯渣
发酵菌剂
有机固体废弃物
热酶发酵系统
有机肥料
饲料资源
cassava residue
fermentation agent
organic solid waste
rapid thermophilic digestion system
organicfertilizer
feed resources
