汽油中碱性氮的脱除

采用盐酸抽提法、液－固吸附法、络合法脱除汽油中的碱性氮，并对脱除效果进行了考察。结果表明，对盐酸抽提法，最佳盐酸浓度应控制在０．０５～１．０ｍｏｌ·Ｌ－１，最佳抽提时间为２０ｍｉｎ；对液－固吸附法，液固比控制在１～５，碱性氮脱除效果最好；对络合法，络合剂浓度控制在１５％～２０％为最佳。在以上条件下碱性氮脱除率均可达９０％以上。

含氮工业废水处理技术研究进展

大部分工业生产都面临着高氮、高矿化工业废水的难题。脱氮处理过程效率较低,且耗费资源。本文介绍了生物法、膜法、气相法、氧化还原法以及其他脱氮技术的原理、影响因素和缺点,突出高脱氮率,低成本脱氮的必要性。总结不同脱氮方法的脱氮效率,经济性,并论述了当前工业脱氮研究现状及发展趋势。为响应减污降碳、节能减排的号召,将国内外现有脱氮手段与绿色能源相结合,以期为含氮工业废水的脱氮工艺进一步开发与应用提供参考。

碳质材料去除氮氧化物的研究与应用

对近年来用于氮氧化物污染治理的碳质材料的制备、性能测试、实验研究和实际应用等,进行了评述.同时,讨论了我国利用碳质材料治理氮氧化物污染的优势,并提出了相应的建议.

废水处理氨氮技术研究

本文叙述了当前氨氮废水各利处理方法的原理、影响因素和优缺点。这些方法包括生物法、化学沉淀法、化学氧化法、膜分离法、离子交换法和吹脱法。介绍了国内外氨氮废水处理的研究现状,指出了氨氮废水处理的技术发展方向。

皮革专利

专利名称：一种水性通用色浆及其制备方法 本发明提出了一种水性通用色浆，解决了如何在不影响色浆流变性的情形下提高色浆内的色粉固含量的技术问题，包括以下质量百分比的各组分：表面活性剂5％～12％，色粉40％～50％，消泡剂0．1％～0．5％，防霉剂0．1％～0．5％，余量为去离子水。

A Method for Determining Available Fixed Ammoniumin Soils

Dynamics of fixed NH in NH-treated soils incubated with glucose at 37±2℃ during the course ofincubation and factors affecting it were studied. Results showed that content of fixed NH in soil reached aminimun on day 7 after incubation and then increased gradually regardless of the amount of glucose addedand the kind of soil tested. However, the amount of fixed NH released from the soil at the given time variedwith both the amount of glucose added and the kind of soil examined. In cases glucose was added at a rateof 10.0g C/kg soil, the amount of fixed NH retained in soil after 7 days of incubation was almost identicalto that found by Neubauer test. Addition of K￣+ depressed the release of fixed NH significantly. Based onthe results obtained a method for determining the content of available fixed NH in soils was proposed andthe amount of N as available fixed NH in two soils measured by this method on an area profile-depth basiswas presented.