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低成本吸附剂具有经济实惠、来源广泛、性能优异等特点,故在含铬废水脱铬技术研究中取得重大进展。总结了生物质类吸附剂(藻类、植被、菌类、甲壳素、壳聚糖、木质纤维素、植物单宁、胶原纤维)以及无机类吸附剂(工业副产品、沸石、粘土、纳米材料)脱除废水中三价铬或六价铬离子的方法和特性,主要包括吸附剂预处理或改性、吸附机理、吸附影响因素、吸附模型拟合(平衡吸附及吸附动力学模型),吸附效率等方面做了论述与比较。
Low-cost adsorbent with economic benefits, a wide range of sources, such as excellent performance, so chromium-containing wastewater dechromium technology made significant progress. The biomass adsorbents (algae, vegetation, fungi, chitin, chitosan, lignocellulose, plant tannins, collagen fibers) and inorganic adsorbents (industrial byproducts, zeolites, clays and nanomaterials) were summarized Methods and properties of removing Cr (VI) or hexavalent chromium (Cr) in wastewater include pretreatment or modification of adsorbent, adsorption mechanism, influencing factors of adsorption, adsorption model fitting (equilibrium adsorption and adsorption kinetics model) and adsorption efficiency Have done a discussion and comparison.