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化學(xué)配方數(shù)據(jù)庫(kù)
配方類型： MISCELLANEOUS
配方說(shuō)明： Citric Acid Cleaning Solution for Membrane Cleaning (pH 3.5, for
Iron Fouled Membranes)
配方組成：
配制方法： Dissolve 10 lb citric acid anhydrous in 500 gal water to make a 0.25% solution of citric acid. Neutralize to pH 3.5 using approximately 3 lb ammonium hydroxide. 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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