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CERIUM-LANTHANUM TREATMENT METHOD FOR REDUCTION OF CONTAMINANTS IN WASTEWATER MEMBRANE BIOREACTORS
CERIUM-LANTHANUM TREATMENT METHOD FOR REDUCTION OF CONTAMINANTS IN WASTEWATER MEMBRANE BIOREACTORS
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机译:铈 - 镧处理方法,用于减少废水膜生物反应器中污染物的处理方法
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摘要
Disclosed are methods of treating wastewater using a membrane bioreactor and achieving a target phosphorus concentration for the membrane permeate stream. These methods include the steps of dosing a wastewater stream with a rare earth clarifying agent and passing the dosed wastewater stream through the membrane to obtain a membrane permeate stream with a permeate concentration that is less than the phosphorus concentration of the influent stream. This permeate concentration also can be equal to or less than a target phosphorus concentration. In the methods as disclosed herein, the rare earth clarifying agent can be chloride salts of one or more rare earth elements and in certain embodiments, the rare earth clarifying agent can be LaC13 and LaC13.
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