涂布流程中都会有不同程度的环境污染，主要为空气污染，气体主要污染物是“有机挥发物”，英文缩写为VOC（主要包括异丙醇、苯、醋酸乙酯、醇、丙烯酸、重金属银离子等），是一些能与阳光臭氧层中的氧化氮发生反应的有机化合物，挥发到空气中的VOC，与灰尘中细微尘埃粒子和其他物质结合会形成灰雾，刺激人体肺部，对动、植物等各种生物健康带来负面影响。
安居乐VOC沸石转轮浓缩GRTO装置简介:
Zeolite Rotary Concentrator Wheel+ GRTO:
对于低浓度・大风量的VOC污染废气，上海安居乐环保科技股份有限公司推出自主知识产权的GRTO工艺，进一步完善了传统的VOC浓缩+RTO蓄热燃烧装置工艺，可以将低浓度、大风量的污染空气浓缩为小风量、高浓度的废气后进行热力燃烧处理，效率提升，安全提升，而且可以降低运行成本，实现低成本、高效率VOC尾气处理达标排放，是行业领先的有机挥发性VOC和恶臭HAP废气环保治理工艺。
How to treat low concentration with large air flow waste stream Shanghai Anjule has patent designed solutions with the zeolite concentrators to reduce the air flow of the pollutant and concentrate the VOCs before the RTO treatment. Improve the removal efficiency, reduce the operating cost while meeting the regulations. This is a leading technologies in treating VOCs and HAP.
常规有机废气浓缩转轮和RTO（RCO）处理流程如下：
The process flow for zeolite rotary concentrator wheel+ RTO (RCO)
安居乐的工艺技术更加贴近废气工况，以大风量的喷漆废气处理为例：
车间排放有机废气通过总管道送至G涡流净化塔做漆雾颗粒去除处理，后经过除雾器，再经过专门设计的组合过滤器后，由VOC沸石浓缩转轮吸附区吸附，吸附效率为90%以上；排放废气由吸附风机抽出，并达标排放；
浓缩转轮吸附住的有机物，从转轮脱附区域脱附出来进入RTO高温氧化处理
Anjule technology can be applied to work with the process specifications. For example, emission from coating industrial has the characteristic of high air volume: the waste gas was sent to the G-vortex column to remove particulate. After the dehumidifier process, the waste gas was sent to a specially designed filter before entering the rotary concentrator for VOCs adsorption. The removal efficiency can achieve VOC removal efficiency above 90%. A system fan was installed to release the cleaned air, which is in compliance with the regulations. The air stream then transfer to the RTO for further treatment.