Glyphosate is a typical dissolved organic phosphorus that can cause adverse effects on plants, animals, and humans. Modified shell powder/Ce-N-TiO2 was synthesized by high-temperature doping, and the prepared modified shell powder/Ce-N-TiO2 was characterized and used response surface methodology to find out the optimum condition for adsorption removal rate. The zeta characterization indicates that the doping of Ce shifts the isotropic potential of the material to the right. The FT-IR and XPS characterization indicated that glyphosate was successfully adsorbed, and the two-two interactions of pH, contact time and dosing amount had a more obvious effect on adsorption by response surface analysis. The process of glyphosate adsorption by modified shell powder/Ce-N-TiO2 was consistent with the quasi-secondary kinetic model and Langmuir model, and the maximum adsorption amount was 66.98 mg/g. The above results may be useful for the study of other systems of glyphosate wastewater treatment.

草甘膦是造成水体富营养化的典型有机磷.通过高温掺杂合成改性牡蛎壳粉,并用其对模拟草甘膦废水进行吸附研究.结果表明,改性牡蛎壳粉最优制备条件:煅烧温度900℃,过筛粒径120目(125μm),淀粉用量(淀粉质量/牡蛎壳粉质量)15％,煅烧时间2.5 h,并进行碱处理.XRD表明,制备的改性牡蛎壳粉表面成分为CaCO3和Ca(OH)2;表面分析结果表明,改性牡蛎壳粉比表面积相较未改性前增大21.3％;红外光谱分析表明,制备的改性牡蛎壳粉存在羟基官能团.改性牡蛎壳粉吸附草甘膦过程符合准二级动力学模型和Langmuir模型,最大吸附量为66.06 mg/g.

草甘膦是世界上使用最广泛的除草剂,可在环境中积累和转移,对环境和人类健康造成潜在威胁.为了人们更好地选择合适的技术去除草甘膦,文章综述了几种废水中草甘膦的处理技术,评价它们的表现,指出它们的优点、缺点和局限性,并对草甘膦废水处理的发展趋势作出了展望.

金龙油田金龙10井区位于准噶尔盆地西部隆起中拐凸起,平均并深3 700m,目的层石炭系.在钻并过程中,二开乌尔禾组钻速慢、复杂时率较高,严重影响全井钻井工期.重点介绍了金龙10井区水平井井身结构优化试验过程,从工程施工角度分析了井身结构调整对钻井施工带来的不同影响,对其它区块井身结构优化具有一定借鉴价值.

金龙10井区位于准噶尔盆地西部隆起中拐凸起,井型多为水平井.该区块水平井钻井过程中,井漏、阻卡频繁,复杂时率高、施工周期长,对区块规模上产影响较大.通过分析该区地质、钻井难点开展技术试验,解决了制约金龙10井区水平井的钻井技术难题,对加快该区块规模开发具有一定借鉴意义.