Wastewaters in the Vadose Zone of Arid Regions: Geochemical Interactionsa

摘要: Because of increasingly stringent laws governing discharge fluid wastes to surface waters, the alternative subsurface has become attractive. The physical-chemical processes that prevail in are not well understood, but they clearly identical purification waters. For example, process oxidation may be little value significantly reducing concentration discharged contaminants; contrast, plays an important role purifying Eleven can identified as having potential for subsurface, follow: dilution, buffering pH, precipitation by reaction, hydrolysis, or reduction, filtration, volatilization, biological assimilation, radioactive decay, membrane and sorption. Discharge vadose zone a safe means disposal arid regions. But it is necessary carefully test suitability particular site waste. Processes incorporated into workable plan if adequate studies safeguards employed. Regulations should take account act purify waste fluids. In one set experiments, soil from Sulfur Springs, New Mexico was capable removing large quantities dissolved molybdenum copper synthetic mill water, able quantitatively retain during subsequent leaching fresh metal-free Such permit rational plans developed.