Enhancing the purification of cold water

Conclusions 1. The use of 0.40 mg/liter PAA enables clarification and decolouration of water to be enhanced during winter and clarified water of the required quality to be obtained.2. The increase of 1.9% in the cost of reagents when PAA is used is negligible compared with the effect obtained.Kiev Combine. Translated from Khimicheskie Volokna, No. 2, pp. 73–74, March–April, 1969.