针对传统碱液在煤矿硫化氢治理过程中吸收率低且易发生二次超限的缺点，以碳酸钠(Na₂CO₃)溶液为基料，选取表面活性剂脂肪醇聚氧乙烯醚乙酸钠(AE9C-Na)和氧化剂过氧化氢(H₂O₂)为改性剂对碱液进行改性处理。以碳酸钠、表面活性剂和氧化剂的掺量作为影响因子，以硫化氢气体去除率为响应值，首先通过单因素实验单独考察了各影响因子变化对响应值的影响，研究了碳酸钠溶液中不同质量分数的表面活性剂和氧化剂对硫化氢气体脱除的影响。然后按照中心组合设计安排试验，根据试验结果对硫化氢去除率进行拟合与回归分析，得到回归拟合方程。然后应用响应面法(RSM)进一步确定了各影响因子的交互作用，结果表明:各影响因子显著性大小排序为:碳酸钠溶液质量分数＞表面活性剂质量分数＞氧化剂质量分数，碳酸钠溶液质量分数和表面活性剂质量分数的交互作用对硫化氢去除率影响最大。最后，利用Design-Expert软件对改性碱液的配比进行优化，综合考虑吸收效率与成本后，提出本实验所研制的改性碱液最佳配比为:碳酸钠溶液质量分数2.5%，表面活性剂质量分数0.25%，氧化剂质量分数0.8%。以崔家沟煤矿2303工作面为试验地点，喷洒改性碱液对现场硫化氢进行治理，现场试验结果表明，改性碱液对硫化氢的去除率平均为90.3%，且无硫化氢超限及二次逸散现象，治理效果显著。

In view of the shortcomings of traditional alkali solution in the process of hydrogen sulfide treatment,which has low absorption rate and is easy to exceed the limit twice,the surfactant (AE9C-Na) and oxidant (H2O2 ) were selected as the base material to modify the alkali solution. Taking the content of sodium carbonate,surfactant and oxidant as the influencing factors and the removal rate of hydrogen sulfide as the response value,firstly,the influence of the change of the influencing factors on the response value was investigated by single factor experiment,and the influence of different concentrations of surfactant and oxidant in sodium carbonate solution on the removal of hydrogen sulfide was studied. Then,according to the central combination design,the experiment was arranged. According to the test results,the fitting and regression analysis were carried out to get the regression fitting equation. Also,RSM was used to further determine the interaction of the influencing factors. The results showed that the significance order of the influencing factors was:sodium carbonate solution concentration>surfactant concentration>oxidant concentration. The interaction of sodium carbonate solution concentration and surfactant concentration had the greatest impact on the removal rate of hydrogen sulfide. Finally,a design expert software was used to optimize the ratio of modified lye. After considering the absorption efficiency and cost,the optimal percentages for the modified lye developed in this experiment are as follows:the concentration of sodium carbonate solution is 2. 5% ,the concentration of surfactant is 0. 25% ,and the concentration of oxidant is 0. 8% . Taking the 2303 working face of Cui Jiagou coal mine as the test site,the modified alkali solution was sprayed to treat the hydrogen sulfide on site. The field test results showed that the average removal rate of the modified alkali solution for hydrogen sulfide was 90. 3% ,and there was no hydrogen sulfide overrun and secondary escape,so the treatment effect was significant.