Phosphorus, contaminant control from

Contaminated water from the phosphate fertilizer subcategory A is collected in gypsum ponds and treated for pH adjustment and control of phosphorus and fluorides. Treatment is achieved by double liming or a two-stage neutralization procedure, in which phosphates and fluorides precipitate out [7]. The first treatment stage provides sufficient neutralization to raise the pH from 1 to 2 to a pH level of at least 8. The resultant effectiveness of the treatment depends on the... 

The Influence of Phosphorus Poisoning. - Catalytic oxidation using noble metal catalysts has been used to reduce the concentration of unburned hydrocarbons, carbon monoxide pollutants released from internal combustion engines, and similar applications. It is well known that contaminants arising from lubricants, (P, Ca, and Zn) deactivate these catalysts. Phosphorus compounds in printing processes are the source of decay of noble metal catalysts used to control these emissions. 

A diffusion controlled mechanism of deposition of phosphorus particles has been also proposed to explain the concentration of P contamination (arising from lubricant additives) in the external side of the washcoat and a mathematical... 

In conclusion, it should be noted that we live in an environment with a permanent phosphorus excess. This factor, resulting from the wide use of phosphate-containing detergents, fertilizers and food additives may have some negative effects on the environment and human health. The biochemistry of PolyPs may offer new ways for overcoming unfavourable factors caused by phosphate contamination of the environment and for controlling infections and some other diseases. 

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