The modified bentonite has better qualities and ability of decolorization, sweeten and removing heavy metal cations and aromatic compounds and hard biodegradable harmful organic compounds.

改性膨润土可去除水体中的重金属离子、芳香族化合物、有毒难生物降解有机物，还具有脱色、脱磷、除臭等作用。

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The sulfanilamide wastewater is characterized by high concentration of organic compounds and is hard to biodegradable, so the treatment methods of this kind of wastewater are limited.

磺胺类生产废水由于其具有有机物浓度高、难生物降解等特点，使得处理方法很受局限。

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