Stripping organics from groundwater and wastewater
- North East Environmental Products, Inc., West Lebanon, NH (United States)
At thousands of installations worldwide, air stripping has been used as an efficient method for removing volatile and semi-volatile contaminants from water -- both groundwater and industrial wastewater streams. In addition to numerous field installations, extensive laboratory analysis has confirmed the performance of various types and sizes of air strippers, and has made the practice highly predictable for a wide range of contaminants. The general principles of air stripping are quite simple. Within an air stripper, an air stream is directed across a thin film of contaminated water. Contaminants at the air-water interface volatilize and are discharged to the atmosphere, or to an off-gas treatment system. The two main types of air strippers are packed towers and try-type strippers. In many cases, air stripping can be a fast, efficient and economical approach to treating organics-laden water streams. However, since different wastewater streams can vary significantly, each must be evaluated to characterize its constitutents, determine each constituent`s potential affinity or resistance to being volatilized, and identify any pre-treatment steps that need to be taken to produce the desired results.
- OSTI ID:
- 220645
- Journal Information:
- Environmental Engineering World, Journal Name: Environmental Engineering World Journal Issue: 2 Vol. 2; ISSN EEWOFR; ISSN 1079-3186
- Country of Publication:
- United States
- Language:
- English
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