Bayoxide^®氧化铁吸附剂--高效除砷等

除Lewatit^®离子交换树脂外，朗盛还提供可用于饮用水和废水处理的无机吸附剂。 Bayoxide^®是一种颗粒状的氧化铁吸附剂。产品变体是基于定义的晶体α-氧化铁氢氧化物结构，特别适用于去除饮用水或废水中的砷和磷酸盐，也可去除其他金属离子，尤其是含氧阴离子。 

Bayoxide^®产品通常用于连续固定床工艺。在该工艺中，被污染的水被选择性地净化。因此该技术可以轻松且经济高效的集成到现有工厂中。

BAYOXIDE^®的主要应用

除砷
Bayoxide^®氧化铁吸附剂具有非常高的表面积和吸附能力，可以选择性的可靠的除砷并达到10µg/L以下。通过氧化将三价砷转化为五价砷时，效率会显著提高。与传统吸附介质相比，Bayoxide^® E 33这一产品在该应用中的出色表现已得到证实，由于其更大的容量，可以显著延长过滤器的运行时间。砷以砷酸盐的形式共价结合到吸附剂上，因此可作为固体易于处理。由于在循环开始时产水中砷的浓度较低（ << 5ppb），吸附剂的运行时间可以通过将其与原水混合而显著延长。通过串联连接两个过滤器，运行时间也可以显著延长。 Bayoxide^® E 33和 Bayoxide^® E 33 HC两个产品适用于饮用水处理，并具备所需的证书。o their very high surface area and adsorption capacity, Bayoxide^® iron oxide adsorbers can selectively and reliably remove arsenic to below the limit of 10 µg/L. Efficiency is significantly increased when existing As(III) is converted to As(V) by oxidation. Compared with conventional adsorption media, the Bayoxide^® E 33 product, which has proven itself in this application, enables significantly longer filter operating times due to greater capacity. The arsenic is covalently bound to the adsorber as arsenate and can thus be disposed of very easily as a solid. Due to the achievable low As concentration in the effluent at the beginning of the cycle (<< 5ppb), the running time of the adsorber can be significantly extended by blending it with the raw water. By connecting two filters in series, the running time can also be significantly extended. The product types Bayoxide^® E 33 and Bayoxide^® E 33 HC are suitable for use in drinking water treatment and have the necessary certificates.

除磷酸盐
Pho废水中的磷酸盐污染通常会导致接收水或废水排放到的水体出现问题。即使在水族馆和水产养殖中，也只能容忍一定的磷酸盐水平，以防止藻类过度生长，对鱼类和珊瑚造成严重破坏。Bayoxide^® IN 20（淡水）和 Bayoxide^® IN 30（咸水）能够选择性的去除水中的磷酸盐。如需大规模使用，可以考虑对吸附剂进行再生。sphate contamination of wastewater often causes problems in receiving waters or, in other words, the waters into which the wastewater is discharged. Even in aquariums and aquacultures, only a certain phosphate level can be tolerated to prevent excessive algae growth and serious damage to fish and corals. Bayoxide^® IN 20 (freshwater) and Bayoxide^® IN 30 (saltwater) are capable of selectively removing phosphate from water. For large-scale use, regeneration of the adsorber can be considered.

更多应用
Bayoxide^® 可显著降低硅酸盐含量。硅酸盐是选择性的，原则上可以再生。一种应用是用于降低反渗透系统进水中的硅酸盐含量，可使产水更高。铀也可以作为含氧阴离子被去除。铀酸盐与Bayoxide^® 吸附剂的固定结合简化了更换和后续处理。大量其他金属阳离子通过类似的机制与Bayoxide^® 吸附剂结合。在这种情况下，可以在低金属浓度下用于饮用水处理。例如，Bayoxide^® E 216由于其粒径小，可与活性炭结合用于家用中作为POU过滤器去除砷和重金属。即使对于临时应用，如处理特定的体积，由于其简单的系统技术和易于处理的特点，使用吸附剂也极具经济性。can significantly reduce the silicate content. Silicate reduction is selective and regeneration is possible in principle. One application would be the reduction of the silicate content in the feed to reverse osmosis plants, which allows a higher yield. Uranium can also be removed as an oxyanion. The fixed bonding of the uranate to the Bayoxide^® adsorber simplifies the replacement and subsequent disposal. A large number of other metal cations are bound to the Bayoxide^® adsorbers by a similar mechanism. In this case, use in the drinking water sector is possible at low metal concentrations. Bayoxide^® E 216, for example, is used in combination with activated carbon in the household sector as a POU filter to remove arsenic and heavy metals due to its small particle size. Even for temporary applications such as the treatment of a defined volume, the use of the adsorbers makes economic sense due to the simple system technology and easy disposal.

Learn more about our Bayoxide^® iron oxide adsorbers and Lewatit^® ion exchange resins in the municipal water treatment industry.