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The importance of interfacial and bulk effects in cleaning food process plant

界面和体积效应在食品加工厂清洁中的重要性

基本信息

批准号：
BB/D523386/1
负责人：
Peter Fryer
金额：
$ 30.14万
依托单位：
University of Birmingham
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2006
资助国家：
英国
起止时间：
2006 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=BB%2FD523386%2F1
关键词：
importance interfacial bulk effects cleaning

项目摘要

Food process plant becomes rapidly fouled with deposit on the surfaces of process equipment. This can be due to the deposition of thermally unstable components in the fluid: such as the denatured protein that forms when milk is boiled in a saucepan or a food process plant: or from the growth of microorganisms in films on the surface. Fouling deposit endangers both food quality and safety, through the contamination of product that enters the food chain, and the possible presence of pathogens. The problem of fouling is widespread; as a result, cleaning-in-place (CIP) is a common operation within the food industry. Cleaning protocols are however often empirical and are rarely if ever optimised. The long term industrial aims of research into cleaning are: Increased food safety by improving and ensuring cleaning efficiency; minimising environmental impact by reducing the amount and COD of effluent; increased manufacturing efficiency through extension of run length and minimisation of cleaning time. To optimise cleaning requires better understanding of fouling deposits and how they change during processing (ageing) and cleaning. In this project we will study the materials properties of fouling deposits, and how they change. The forces between elements of the deposit, and the forces binding the deposit to the surface, will be measured. A model for the process will be constructed and validated against experiment. This model will then be used to study whether it is possible to change industrial cleaning methods.

食品加工厂很快就会被加工设备表面的沉积物污染。这可能是由于液体中沉积了热不稳定的成分：例如在平底锅或食品加工工厂中煮牛奶时形成的变性蛋白质；或者是由于表面薄膜中微生物的生长。污垢沉积物通过污染进入食物链的产品，以及可能存在的病原体，危害食品质量和安全。污垢问题很普遍；因此，就地清洗（CIP）是食品工业中常见的操作。然而，清洁方案往往是经验性的，很少被优化。清洁研究的长期工业目标是：通过提高和确保清洁效率来提高食品安全；减少污水的数量及化学需氧量，以尽量减少对环境的影响；通过延长运行长度和最小化清洗时间，提高了制造效率。为了优化清洁，需要更好地了解污垢沉积物以及它们在加工（老化）和清洁过程中如何变化。在这个项目中，我们将研究污垢沉积物的材料特性以及它们是如何变化的。将测量沉积物元素之间的力，以及将沉积物与表面结合的力。建立了该工艺的模型，并对其进行了实验验证。该模型将用于研究是否有可能改变工业清洗方法。