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Development for Use of Lees Materials

酒糟材料的利用开发

基本信息

批准号：
14572118
负责人：
ADACHI Atsuko
金额：
$ 1.54万
依托单位：
Kobe Pharmaceutical University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

Utilization of Rice Bran to Prevent Bulking in the Activated Sludge ProcessRice bran was evaluated for prevention of bulking in the activated sludge process. After addition of rice bran in the aeration tank of the food plant, a decrease in SVI(sludge volume index) was observed. Both BOD(biochemical oxygen demand) and COD (chemical oxygen demand) showed significant decreases relative to that before the addition of rice bran. Rice bran accelerated the growth of the effective microorganism. As a result, rice bran suppressed the growth of filamentous organisms caused in bulking. It was suggested that phytic acid in rice bran was useful for controlling filamentous bulking from laboratory scale investigations.Decomposition of Monochloramine from Water with Rice BranRemoval efficiency of monochloramine by rice bran was investigated over the range of pH 3-12. The removal rate of residual chlorine by rice bran was similar to activated carbon. Monochloramine was successfully removed with an aver … More age removal efficiency of 95% after 90 min when rice bran was applied to chlorinated sewage effluents that contained 0.22-0.46 mg/l monochloramine. The removal of monochloramine by rice bran was attributed to its decomposition by direct reaction with rice bran. Here, we report the findings of the efficiency of rice bran removal of monochloramine using the batch system in laboratory tests, and describe elucidation of the mechanism of its removal.Efficiency of Rice Bran for Removal of Organochlorine Compounds and Benzene from Industrial WastewaterRice bran was found to effectively adsorb several organic compounds, such as dichloromethane, chloroform, carbon tetrachloride, trichloroethylene, tetrachloroethylene and benzene. Equilibrium adsorption isotherms conformed to the Freundlich isotherm (log-log linear). Adsorption of dichloromethane and chloroform by rice bran was observed in the pH range 1-11. Dichloromethane was successfully removed from rice containing 0.006 to 100 mg/l to the extent of 70 % after 60 min. The removal of these organochlorine compounds and benzene by rice bran was attributed to the uptake by intracellular particles called spherosomes. Less

利用米糠防止活性污泥法中的膨胀米糠用于防止活性污泥法中的膨胀进行了评价。在食品厂的曝气池中添加米糠后，观察到SVI（污泥体积指数）降低。与未添加米糠相比，BOD（生化需氧量）和COD（化学需氧量）均显著降低。米糠促进了有效微生物的生长。结果，米糠抑制了膨胀引起的丝状生物的生长。米糠对水中一氯胺的降解研究在pH 3-12范围内，米糠对水中一氯胺的降解效果较好。米糠对余氯的去除率与活性炭相近。一氯胺被成功地去除， ...更多信息当米糠用于含0.22- 0.46mg/L一氯胺的氯化污水时，90 min后的老化去除率为95%。米糠对一氯胺的去除主要是由于一氯胺与米糠直接反应而分解。在这里，我们报告的结果，米糠去除一氯胺的效率在实验室试验中使用的批系统，并描述其去除机理的阐明。米糠去除有机氯化合物和苯的效率从工业废水米糠被发现有效地吸附几种有机化合物，如二氯甲烷，氯仿，四氯化碳，三氯乙烯，四氯乙烯和苯。平衡吸附等温线符合Freundlich等温线（log-log线性）。米糠对二氯甲烷和氯仿的吸附在pH 1-11范围内进行。二氯甲烷被成功地从含有0.006至100毫克/升的大米中去除到70%的程度，60分钟后。这些有机氯化合物和苯的米糠的去除是由于细胞内颗粒称为球体的吸收。少