我国吸附法处理含氟废水研究进展

Research Progress in the Treatment of Fluorine-containing Wastewater by Adsorption in China

在我国钢铁冶炼、煤化工、电镀等行业,氟化物作为不可或缺的生产原料应用量巨大,同时往往伴随产生大量含氟废水。近几年,国家、行业、省市地方、地区环保局等针对含氟废水相继出台并施行了严格的排放标准,要求各企业建立独立完善的含氟废水处理技术。吸附技术作为一种有效的离子交换或表面化学反应过程,是目前除氟技术中最为成熟和常用的技术之一。本文围绕含氟废水吸附技术,综述了活性氧化铝、粘土材料、壳聚糖、活性炭、稀土材料等技术方法的研究进展,以对未来的研究方向提供参考依据。

In China’s iron and steel smelting, coal chemical industry, electroplating and other industries, the amount of fluoride as an indispensable production raw material consumption is huge, often accompanied by a large number of fluorine-containing wastewater. In recent years, the state, industry, provinces,municipalities and local environmental protection bureaux have issued and implemented strict discharge standards for fluorine-containing wastewater, requiring enterprises to establish independent and perfect fluorine-containing wastewater treatment technology. As an effective ion exchange or surface chemical reaction process, adsorption technology is one of the most mature and commonly used fluorine removal technologies. In this paper, the research progress of activated alumina,clay materials, chitosan, activated carbon, rare earth materials and other technologies are reviewed around the adsorption technology of fluoride-containing wastewater, so as to provide reference for the future research direction.