食品工厂设备清洗系统CIP的原理与发展前景

食品加工企业在产品生产过程中,加工设备及管道的清洗非常重要。加工设备及管道在使用后会产生一些沉积物,如不及时、彻底地清洗,将直接会影响产品的质量。原地清洗系统(CIP)是一种理想的设备及管道清洗方法,目前在食品加工企业,特别在乳制品企业中的应用越来越广泛,论述了CIP设备的原理及其清洗剂的清洗效果。     

食品工厂设备清洗系统CIP的原理与发展前景

食品加工企业在产品生产过程中,加工设备及管道的清洗非常重要。加工设备及管道在使用后会产生一些沉积物,如不及时、彻底地清洗,将直接会影响产品的质量。原地清洗系统（CIP）是一种理想的设备及管道清洗方法,目前在食品加工企业,特别在乳制品企业中的应用越来越广泛,论述了CIP设备的原理及其清洗剂的清洗效果。     

Coffee frontiers in the Central Highlands of Vietnam: networks of connectivity

The objective of this paper is to provide an understanding of how the gap between the ‘global’ and the ‘local‐peripheral’ is bridged in the everyday life of the peasantry at a coffee pioneer front. The networks of connectivity between the spontaneous migrant‐peasants at the coffee pioneer front in the province of Dak Lak in the Central Highlands of Vietnam, and the global coffee market are explored. This set of linkages helps the peasantry to settle, despite the harsh conditions of life on the frontier. This is illustrated through a brief ethnographic account of the ‘peripheral’ characteristics of life on a coffee pioneer front. By borrowing analytical tools from actor‐network theory, the paper also illuminates the (actor) networks through which coffee finally reaches the export gate. This account suggests that global commodity production processes are often embedded in local dynamics, in this case, the political‐economy of the frontier. Further, it implies the need to transcend scales when inquiring about peasant‐market relationships in export agro‐commodity production.     

生活污水回收处理器的研制

我国的水资源严重短缺,为了保护生态环境和水资源的可持续发展,从节约用水和提高用水效率出发,充分利用我国现有的水资源,笔者设计了一种城市家庭生活污水回收处理器。通过预沉淀槽的网栅及硫酸铝钾的初过滤和沉淀,再经过活性碳及微孔陶瓷芯的过滤。经过3次过滤后,处理后的生活污水变成清澈干净的水质,用来作为清洁卫生用水,可以大大节约生活用水。