Reverse osmosis-neutralization process for treating mineral contaminated waters
Abstract
Abstract THE PRESENT INVENTION RELATES TO THE TREATING OF MINERAL MATTER CONTAMINATED DRAIN WATERS, PARTICULARLY ACID MINE DRAINAGE AND COMPRISES AN INTEGRATED SYSTEM WHEREIN THE CONTAMINATED WATER IS OPTIONALLY PRE-TREATED TO MAKE IR MORE SITABLE FOR REVERSE OSMOSIS SEPARATION, THEN SEPARATED BY REVERSE OSMOSIS INTO A PURIFIED WATER STREAM CONTAINING AT LAST ABOUT 90% OF THE FEED WATER, THE BALANCE BEING A BRINE STREAM HEAVILY CONCENTRATED IN THE MINERAL CONTAMINANTS, THEREAFTER CHEMICALLY TREATING THE BRINE STREAM, AS FOR EXAMPLE, BY NEUTRALIZATION TO PRODUCE A SLUDGE PRODUCT AND A RE-CYCLE BRINE STREAM, THE RE-CYCLE BRINE STREAM BEING RETURNED TO THE REVERSE OSMOSIS TREATMENT. DESIRABLY THE ULTIMATE PRODUCTS OF THE PROCESS ARE PURIFIED WATER AND A RELATIVELY SMALL VOLUME OF INERT SLUDGE.
Inventors
- 👤 R Hill
- 👤 R Wilmoth
- 👤 R Scott
Bibliographic Details
Claims Analysis
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