PDF(Pubmed)
Abstract：
Every year, new compounds contained in consumer products, such as detergents, paints, products for personal hygiene, and drugs for human and veterinary use, are identified in wastewater and are added to the list of molecules that need monitoring. These compounds are indicated with the term emerging contaminants (or Contaminants of Emerging Concern, CECs) since they are potentially dangerous for the environment and human health. To date, among the most widely used methodologies for the removal of CECs from the aquatic environment, adsorption processes play a role of primary importance, as they have proven to be characterized by high removal efficiency, low operating and management costs, and an absence of undesirable by-products. In this paper, the adsorption of ibuprofen (IBU), a nonsteroidal anti-inflammatory drug widely used for treating inflammation or pain, was performed for the first time using two different types of geopolymer-based materials, i.e., a metakaolin-based (GMK) and an organic-inorganic hybrid (GMK-S) geopolymer. The proposed adsorbing matrices are characterized by a low environmental footprint and have been easily obtained as powders or as highly porous filters by direct foaming operated directly into the adsorption column. Preliminary results demonstrated that these materials can be effectively used for the removal of ibuprofen from contaminated water (showing a concentration decrease of IBU up to about 29% in batch, while an IBU removal percentage of about 90% has been reached in continuous), thus suggesting their potential practical application.
摘要：
每年,消费品中含有的新化合物，如洗涤剂，油漆,个人卫生产品，以及人类和兽药，在废水中被识别，并被添加到需要监测的分子列表中。这些化合物用术语“新兴污染物”(或新兴关注污染物，CECs），因为它们对环境和人类健康具有潜在危险。迄今为止,在从水生环境中去除CEC的最广泛使用的方法中，吸附过程起着首要的作用，因为它们已被证明具有高去除效率的特点，低运营和管理成本，并且没有不良的副产品。在本文中,布洛芬（IBU）的吸附，一种广泛用于治疗炎症或疼痛的非甾体抗炎药，首次使用两种不同类型的地质聚合物基材料，即，偏高岭土基（GMK）和有机-无机杂化（GMK-S）地质聚合物。所提出的吸附基质的特征在于低环境足迹，并且可以通过直接在吸附柱中直接发泡而容易地以粉末或高度多孔的过滤器形式获得。初步结果表明，这些材料可以有效地用于从污染水中去除布洛芬（显示IBU的浓度降低高达约29％，虽然已经连续达到约90%的IBU去除百分比)，从而表明其潜在的实际应用。
