The results indicated that sulfonated soybean hull has a strong adsorption to calcium and magnesium ions in water thus can decrease water hardness and the regener.

• 研究表明:大豆皮磺化改性后,对水中钙镁离子有很强的吸附作用,能够达到降低水硬度的目的;而大豆皮的再生实验也证明改性大豆皮可用作工业生产用水的软化处理。