direct orange
2.The adsorption behaviors of chromium-containing leather waste to anionic dyes (direct pink 12B, direct orange, acid flavine G and acid ATT), anionic surfactant (sodium dodecylbenzenesulfonate, SDBS), cationic surfactant (dodecyl trimethylammonium bromide, DTB) and non-ionic surfactant (Triton X-100, TX-100) in aqueous solution were investigated.

