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首页> 外文会议>Specialty Conference on Emission Inventory: Living in a Global Environment Vol.2 Dec 8-10, 1998, New Orleans, LA >Estimating Emissions from Water-Based Processes in the Textile Industry
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Estimating Emissions from Water-Based Processes in the Textile Industry

机译：估算纺织工业中水基工艺的排放

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摘要

The methods used to calculate VOC and volatile HAP emissions from processes using water varies greatly within the textile industry. Estimates based on engineering judgement of the proportion of individual components being emitted, or assumptions of 100% evaporation of all volatile components are both common practice in the industry. Currently, no reliable emission factors are available. Textile processes using water include the use of dyes, sizing agents, finishing agents, etc. The U.S. Environmental Protection Agency (EPA) and textile industry trade associations plan to perform source testing on these types of sources; however, no two processes are alike and it may be some time before the analysis of these source tests result in any new guidance on calculating emissions from these sources. In working with a textile manufacturer, PES has developed an approach (using i-STEPS~(~R)) to calculate emissions based on the mass-transfer calculations presented in AP-42, Section 4.3 (Waste Water Collection, Treatment and Storage). This method uses chemical-specific variables along with process-specific variables to approximate emissions based on these definable quantities. This paper describes the application of this methodology to a dyeing operation (dye range), and modifications to the AP-42 equations that were necessary to use this method in textile processes. This emissions estimation method provides a more scientifically-based assessment of emissions from water-based processes than is commonly used in the textile industry.
机译：用于计算用水的过程中VOC和挥发性HAP排放量的方法在纺织工业中差异很大。根据工程判断所排放出的单个成分的比例进行估算，或者假设所有挥发性成分均蒸发100％，这都是业内普遍的做法。当前，没有可靠的排放因子。用水进行的纺织工艺包括使用染料，上浆剂，整理剂等。美国环境保护署（EPA）和纺织工业贸易协会计划对这些类型的源进行源测试。但是，没有两个过程是相同的，对这些源测试的分析可能需要一段时间才能得出有关计算这些源排放的任何新指南。通过与纺织制造商合作，PES开发了一种方法（使用i-STEPS〜（〜R）），该方法基于AP-42第4.3节（废水收集，处理和存储）中提出的传质计算来计算排放量。 。此方法使用特定于化学物的变量以及特定于过程的变量，根据这些可定义的量来估算排放量。本文介绍了该方法在染色操作（染料范围）中的应用，以及对在纺织过程中使用此方法所必需的AP-42方程的修改。与纺织工业中通常使用的排放相比，这种排放估算方法可以更科学地评估水基工艺产生的排放。

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