一种富氧条件下甲烷选择还原氮氧化合物催化剂,由活性组分和担体构成,其特征在于:活性组分为铟、铁,担体为分子筛,分子筛的硅铝比小于50,分子筛担载铟的重量百分含量为0.5~20%,分子筛与氧化铁的重量比为10∶0.5~20。其制备方法是先将氧化铁与分子筛机械混合,再将铟盐以浸渍的方法担载到分子筛上,焙烧温度500~900℃,时间3~6小时。本发明适用于在大量氧存在条件下,用甲烷来选择还原氮氧化合物 ...
张涛 +5 more
core
厌氧氨氧化因其低能耗和高效脱氮而受到广泛关注,该技术在处理高氨氮、低碳氮比废水方面具有极大的应用价值。然而,自养型厌氧氨氧化菌倍增速度缓慢,污泥容易流失,且对生长环境的要求非常严格,导致厌氧氨氧化脱氮技术的应用受到限制。笔者总结了目前主要的4种厌氧氨氧化菌固定化技术的原理、优缺点以及适用场景,阐述了厌氧氨氧化菌固定化技术的最新研究进展,介绍了厌氧氨氧化菌的不同载体材料,并对厌氧氨氧化菌固定化技术的关键影响因素和最佳应用条件进行了总结 ...
罗佳欣, 张大超, 苏昊, 张润环
doaj
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