配方类型：	MISCELLANEOUS
配方说明：	Citric Acid Cleaning Solution for Membrane Cleaning (pH 2.0-2.5, for Calcium and Other Cations)
配方组成：
配制方法：	Dissolve 10 lb citric acid anhydrous in 500 gal water to make a 0.25% solution of citric acid. No neutralization is necessary. Recirculate at normal operating pressures for 15 min at 100-110 F. Shut off pump and let soak for 15 min. Recirculate with no back pressure for 15 min. Flush systems with water until clear.

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