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Phosphate removal, waste treatment

The design of a waste treatment system requires data that was not available to me. A secondary system to reduce the biological oxygen demand and a tertiary system to at least remove most of the phosphates are required. Whether styrene is biodegradable was not known. If it is not, then the tertiary system will have to be designed to remove it also. [Pg.222]

The aluminum chloride catalyst used in the alkylation is finally rejected from the system as an acidic aqueous solution. This by-product AICI3 is usually best used for waste water treatment. Sale or use of this material is often as an alum or copperas substitute in water clarification. It is also used in U.S. municipal sewage treatment plants, where a valuable side effect is phosphate removal. In Japan it is converted to polyaluminum chloride (PAC) and used for water treatment. Other uses for this aqueous aluminum chloride stream exist. [Pg.352]

Figure 15. Future complex waste treatment systems for denitrification and phosphate removal... Figure 15. Future complex waste treatment systems for denitrification and phosphate removal...
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Phosphate removal

Waste removal

Waste treatment

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