大蒜片加工废水中大蒜油的回收与处理

S. Cui, Junbo Zhou, Yi Li, Chao Wang, Li-ping Gao
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引用次数: 0

摘要

中国是脱水大蒜片的生产和出口大国。我国每年生产大量大蒜片加工废水,其中含有大蒜油。为了回收利用这一资源,本文以山东省金乡县当地大蒜片加工废水为研究对象,通过“微滤(MF)+蒸馏”的方法进行处理。采用蒸馏法从大蒜片加工废水中提取大蒜油,考察了大蒜片清洗工艺对废水中大蒜油得率的影响。结果表明,在最佳清洗条件下,大蒜油得率可达0.45‰。大蒜片是中国重要的出口农产品,在大蒜片的清洗过程中会产生大量的加工废水。加工废水的排放不仅对环境造成极大危害,而且严重制约了中国大蒜产业的可持续发展。加工废水也会对生物和环境造成严重损害。大蒜油中造成环境污染的主要成分是大蒜多糖、大蒜素等具有经济价值的有机化合物。据测算,每吨大蒜片需要加工17 ~ 20吨水,每年大蒜片加工废水336万吨,其中大蒜多糖损失约3万吨,大蒜素损失约120吨。大蒜片加工废水的处理技术尚处于研究阶段。目前,大蒜片加工废水的处理技术还处于研究阶段,从大蒜片加工废水中提取大蒜油的研究较少。现有的提取方法有有机溶剂萃取[4]和树脂吸附[5]。树脂吸附法是一种新型的水处理方法。在大蒜油提取方面具有创新意义,但由于操作复杂,生产成本高,尚未推广。本实验在总结已有实验数据的基础上,综合考虑各种影响因素,选择合适的实验方法从废水中提取大蒜油。大蒜油具有抗菌消炎、提高免疫力、抗癌等抗癌作用,具有很高的医疗保健价值[6]。本文通过从大蒜废水中提取大蒜油的实验研究,可以从废水中提取有价值的资源,且成本较低,具有巨大的经济效益和社会效益。材料与方法实验原理:大蒜油是一种不溶于水、不溶于水、具有强烈辛辣味的黄色油状液体
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Recovery and Treatment of Garlic Oil from Garlic Slices Processing Wastewater
China is a big producer and exporter of dehydrated garlic slices. A large amount of garlic slices processing wastewater was produced every year, which contains garlic oil. In order to recycle and utilize this resource, this paper takes the local garlic slices processing wastewater in Jinxiang County of Shandong Province as the research object, and through "Microfiltration (MF)+Distillation". The method of distillation was used to extract garlic oil from garlic slice processing wastewater, and the effect of garlic slice cleaning process on garlic oil yield in wastewater was investigated. The results showed that the yield of garlic oil could reach 0.45‰ under the optimum cleaning conditions. Introduction Garlic slices is an important export agricultural product in China while a large number of processing wastewater are produced in the cleaning process of garlic slices. The discharge of the processing wastewater not only causes great harm to the environment but also seriously restricts the sustainable development of China's garlic industry [1]. The processing wastewater can also cause serious damage to the creatures and the environment. The main components of the garlic oil that cause environmental pollution are the garlic polysaccharides, the allicin and other organic compounds that are of economic value[2]. It is estimated that 17 to 20 tons of water to process per ton of garlic slices and there are 3.36 million tons of processing wastewater of garlic slices each year with the loss of about 30000 tons of garlic polysaccharide and 120 tons of the allicin [3]. The treatment technology of the processing wastewater of garlic slices is still in the research stage. At present, the treatment technology to processing wastewater of garlic slices is still at the stage of study, and there is less research on extracting garlic oil from processing wastewater of garlic slices. Existing extraction methods include organic solvent extraction[4] and resin adsorption[5]. The method of resin adsorption is a new type method of water treatment. It has innovative significance in the extraction of garlic oil, but due to the complex operation and high production costs, it has not been promoted. This experiment summarized existing experimental data, and comprehensively considered various influencing factors, and selected suitable experimental methods to extract garlic oil from wastewater. The garlic oil has antibacterial anti-inflammatory, improve immunity, anti-cancer and other anti-cancer effect, with high medical and health value[6]. In this paper, the experimental study of extracting garlic oil from garlic waste water can extract valuable resources from waste water, and the cost is low, so it has huge economic and social benefits. Materials and Methods Experimental Principle Garlic oil is a kind of yellow oily liquid with a strong spicy flavor that is insoluble in water and
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