Conversion of Extracted Oil Cake Fibers into Bioethanol Including DDGS,Canola, Sunflower,Sesame, Soy,and Peanut for Integrated Biodiesel Processing

We have come up with a novel, integrated approach for making biodiesel by in-house producion of ethanol after fermentation of hexane extracted edible oil cake fiber. In addition, we have demonstrated how ethanol could be manufactured from commonly available oil cakes (such as canola, sunflower, sesame, soy, peanut) and dried distiller’s grains with solubles (DDGS). The edible oil cakes and DDGS were hexane extracted, ammonia fiber expansion pretreated, enzymatically hydrolysed and fermented to produce ethanol. From all the oil cakes tested in this work, DDGS and peanut oil cake showed the most promising results giving more than 180 g of glucose/kg of oil cake. These two feedstock’s were hydrolyzed at 15% solids loading and fermented by a native strain of Pichia stipitis. Most sugars were consumed during the first 24 h, with no pronounced inhibition of P. stipitis by the degradation products in the hydrolysate. Xylose consumption was more effective for peanut cake hydrolyzate compared to DDGS.     

上海市竹园第二污水处理厂污泥脱水性能的研究

上海市竹园第二污水处理厂的泥饼含水率为78%左右,不能达到设计值(65%),为了分析其原因,对污泥的脱水性能进行了研究.结果表明,由于产生的剩余污泥脱水性能较差,且使用的是板框压滤机与PAM调理剂,使泥饼含水率降至65%是不可能实现的;根据该厂目前的运行状况及今后污泥的出路,泥饼含水率设定为75%左右较合理.     

滤饼颗粒物性对滤饼特性影响的分析

介绍颗粒的物性及滤饼的特性,通过对形成滤饼的颗粒物性的分析,论述了颗粒的尺寸、颗粒尺寸分布、颗粒密度、颗粒形状和颗粒间附着力对滤饼特性的影响,证实了滤饼的特性与其颗粒物性之间有着密不可分的联系,不同的颗粒物性将直接影响滤饼的特性（尤其是对滤饼比阻）的不同,从而影响过滤的效果。     

Pb(II) and Cd(II) removal from aqueous solutions by olive cake

The removal of heavy metals from wastewater using olive cake as an adsorbent was investigated. The effect of the contact time, pH, temperature, and concentration of adsorbate on adsorption performance of olive cake for Pb(II) and Cd(II) ions were examined by batch method. Adsorption of Pb(II) and Cd(II) in aqueous solution onto olive cake was studied in single component. After establishing the optimum conditions, elution of these ions from the adsorbent surface was also examined. The optimum sorption conditions were determined for two elements. Maximum desorption of the Pb(II) and Cd(II) ions were found to be 95.92 and 53.97% by 0.5M HNO(3) and 0.2M HCl, respectively. The morphological analysis of the olive cake was performed by the scanning electron microscopy (SEM).     

陶瓷过滤机在尾矿脱水生产中的研究与实践

为了解决后续尾矿的堆存问题,需要对尾矿进行脱水干堆。采用浓密机+陶瓷过滤机进行尾矿脱水,并通过实验及生产实践优化了工艺参数,提高了产能,降低了滤饼水分和脱水成本,为选厂创造了效益。     

立式压滤机在4A沸石分离工序上的试验

利用立式自动压滤机对4A沸石晶化料浆和合格料浆进行了一系列分离洗涤和风干试验,试验结果表明,该设备的洗涤效果不明显,不能用该设备对4A沸石晶化滤饼进行直接洗涤;但是其滤饼水分可以降到15%以下,故可以用在晶化料浆和合格料浆的分离与风干工序上,能大大降低搅洗工序的洗涤水耗和烘干工序的能耗。     

改进杏仁饼产品质量的几个措施

本文分析了传统杏仁饼生产中存在的产品加工工艺不够科学、产品微生物指标不易控制和产品营养成分不太合理这三方面的问题,在保留了传统工艺的精华上,介绍了解决这些问题的相关技术和方法,对相关产品的质量改进及新产品开发具有一定的参考价值.     

模糊数学评价结合响应面法优化马铃薯蛋糕加工工艺

以马铃薯全粉为主要原料,在单因素试验的基础上,以质构特性、模糊数学感官评分为指标,选择马铃薯全粉、色拉油、白砂糖添加量为自变量,利用响应面法对马铃薯蛋糕加工工艺进行优化。结果表明,硬度、弹性、黏聚性、回复性与马铃薯全粉蛋糕食用感官较为密切。在马铃薯全粉20%、色拉油50%、白砂糖75%、全脂牛奶60%、食用醋3~4滴时,感官评分为90.88±0.05分,马铃薯全粉蛋糕口感细腻,风味纯正。     

月饼中酸价测定方法的改进

目的建立正己烷超声提取法快速提取月饼中的油脂并检测其酸价。方法采用控制单一变量法,利用超声波和正己烷提取月饼中的油脂,再用加热吹氮技术去除有机溶剂,用指示剂滴定法测定计算月饼的酸值。结果油脂的最佳提取条件为:样品称取量为10g,正己烷为20mL,提取时间为25min,回收率为96%,满足实验要求。提取时间同国标方法中的常温静置浸提法和索氏提取法对比分别缩短了96%和89%。结论该方法操作简单,实验时间短,精密度准确度可靠,适用于月饼中酸价的测定。     

核桃蛋白（肽）粉生产工艺实践

以低温压榨后的核桃饼为原料,通过核桃蛋白(肽)粉制备中试生产线进行工艺实践,并给出了详细工艺参数。核桃饼经亚临界低温逆流萃取后,粕粉中残油为0. 92%,蛋白质含量为54%;经核桃蛋白(肽)粉制备工艺后,蛋白粉中蛋白质含量达80%,肽粉中酸溶性蛋白含量达75%;核桃蛋白粉得率为37%,肽粉得率为17. 5%,即每吨脱脂粕粉可获得核桃蛋白粉370 kg或肽粉175 kg;获得的核桃精炼油、蛋白粉、肽粉、酶解渣粉等可直接应用于功能性食品开发,实现了资源综合利用。