Closed-Loop Water Recycling System.

Abstract : The increased emphasis on environmental concerns has strongly impacted operations involving energetic materials processing. Safety requirements for these operations include a high degree of cleanliness, both of equipment and operating spaces. The recommended procedure for clean-up after an operation, steam washdown, has long been prohibited because of the pink water waste stream that results. This report describes the solution to this problem that has been implemented locally, a closed-loop system whose only effluent is water vapor and contaminated sawdust, which can be disposed of according to current regulation and procedure. jg p.3