Qed Tray-based Air Stripping System For Voc Removal From Contaminated Water

US $16000

Fountain Valley, California, United States
Jun 23rd

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Tray-Based Air Stripping System Tackles Contaminated Water Some of the most common volatile organic compounds (VOCs) found in public water supplies are easily removed using air stripping technology. Air stripping is a process that removes or "strips" VOCs from water by contacting clean air with contaminated water across a high surface area, causing the VOCs to move from the water into the air. It is a very simple and robust process – as long as air is mixing with water, contaminant removal continues. Tray-based air strippers inside Cheyenne's groundwater treatment plant reduce TCE levels to below 2ppb. The air stripping process is governed by Henry's Law. The Henry's Law constant (H) of any dissolved contaminant can be used to predict how effectively that contaminant will be driven from the water into the air. Some contaminants are easier to strip than others, for instance, vinyl chloride strips easily, benzene less so, and MTBE is relatively difficult to strip. A pilot test may be required to determine the expected level of stripping if the mixture entering the air stripper contains free-phase organics, or non-volatile, polar organic chemicals since these contaminants impact H values for the full range of VOCs present in wastewater. Temperature also affects the stripping process – higher water temperature increases stripping. es E-Z Tray® Air Strippers (U.S. Patent Number 5,518,668) are sliding tray, stainless steel air strippers used to remove volatile organic compounds (VOC) from groundwater. E-Z Tray Air Strippers exclusive design results in VOC removal rates up to 99%. E-Z Tray air strippers use lightweight, front slideout trays. This unique feature provides many advantages, such as one man operation and cleaning, and installation in small areas. E-Z Tray air strippers are available in configurations with 4 or 6 trays, with maximum flow rates from 1-25 gpm (4-100 Lpm) to 1-250 gpm (4-946 Lpm). High Capacity Process Air Strippers New, larger models of E-Z Tray air strippers increase the flow rate capability of the company air strippers lineup fourfold, from a maximum 1-250 gpm (4-100 Lpm) to 1-1,000 gpm (4-3,784 Lpm). Combined with the easier maintenance and smaller footprint of QED's sliding tray air strippers, this has led to their becoming the preferred choice for major remediation and process stream projects in the US and abroad. These air strippers are engineered to serve in larger, process-type projects involving multiple treatment stages, where they are an effective component of large-scale water or wastewater processes in manufacturing, refining, chemical processing and other industries. They can act as a pre-treatment stage for other process elements, such as large aerobic biotreatment units, removing VOCs at much lower airflow rates to reduce the costs of off-gas treatment.