国家对煤矿矿井水资源化利用高度重视，排放标准的不断提高和智慧矿山概念的不断深化，给矿井水处理技术提出了新的挑战。通过对矿井水地面处理技术与井下多级过滤处理技术的分析和比较，在总结了现有技术存在问题的基础上，提出了聚瓷膜超滤高效处理矿井水新技术。新技术相比于传统处理技术的多流程而言，因处理过程无需加药，可省去整个加药系统，故处理过程仅包括高压预处理与常压过滤处理2个主要单元，解决了矿井水传统处理方法必须加混凝剂的难题，可真正做到矿井水处理全过程无人值守，符合智慧矿山的要求。新技术具有流程短、占地小、无需加药、出水水质稳定、可自动运行等特点，同时还可实现模块化、智能化，可适用于不同场景下含高悬浮物矿井水的直接过滤，或作为矿井水苦咸水的预处理单元，其中特别适合用于矿井水的井下处理就地复用。其核心组件聚瓷膜更是具有强度高、通量大、超亲水疏油、耐受悬浮物（SS）质量浓度可达10 000 mg/L等优势。通过实验室试验和矿井水地面处理改造工程案例可知，在进水SS质量浓度为0～10 000 mg/L，聚瓷膜直滤后出水SS均能稳定达到1 mg/L以下，浊度稳定达到1 NTU以下，该技术在煤矿矿井水资源化利用方面有明显优势，可为将来的大规模工程化推广应用提供技术参考。

The resource utilization of coal mine drainage has been attracting growing attention. The increasingly stringent discharge standards and the deepening of the concept of intelligent mine have posed new challenges to mine water treatment technology. This paper discussed the traditional treatment processes and the multi-stage filtration underground treatment technology. In addition, a new high-efficiency technology-Polycera membrane ultrafiltration-was proposed to treat coal mine drainage on the basis of summarizing the existing technology problems. Compared with the multi-process of the traditional treatment technology, the new technology only includes two main units, high pressure pretreatment and atmospheric filtration treatment, because the treatment process does not need dosing and the whole dosing system can be omitted, which solves the problem that the traditional coal mine drainage treatment method must add coagulant, and can truly make the whole process of coal mine drainage treatment unattended and meet the requirements of the intelligent mine. The new technology offers the advantage of a shorter process flow and a smaller footprint and could ensure the stability of effluent water quality. Besides, the new technology could be operated automatically without chemical additions. At the same time, it can realize modularization and intellectualization, and can be applied to the direct filtration of coal mine drainage containing high suspended solids in different scenarios, or as the pretreatment unit of coal mine drainage brackish water, especially suitable for the in-situ reuse of coal mine drainage underground treatment. The core component of the new technology is the Polycera membrane with high strength and high-water flux. It is a super hydrophilic and oleophobic material that can withstand suspended solids (SS) of high concentrations up to 10 000 mg/L. By analyzing the laboratory-scale test results and the reconstruction engineering case of coal mine drainage treatment on the ground, it can be seen that in the range of inlet SS of 0-10 000 mg/L, the SS of the filtered effluent after direct filtration with Polycera membrane can be stably below 1 mg/L, and the turbidity can be stably below 1NTU, it is shown that the new technology presents apparent advantages in the resource utilization of coal mine drainage. This technology could provide a technical reference for large-scale engineering applications in the future.

0 引言
1 煤矿矿井水处理方法
1.1 混凝—沉淀—过滤工艺
1.2 加重介质混凝改进工艺
1.2.1 瓷砂混凝
1.2.2 磁混凝
1.2.3 超磁分离技术
1.3 常规处理技术对比分析
2 煤矿矿井水井下处理方法
2.1 井下采空区处理技术
2.2 井下柔性陶瓷膜处理技术
2.3 井下无机陶瓷膜处理技术
3 煤矿矿井水处理新技术工艺
3.1 聚瓷膜理化性能
3.2 聚瓷膜超滤高效处理工艺
3.3 膜处理矿井水技术对比分析
3.4 聚瓷膜处理矿井水试验效果
3.5 内蒙古某典型煤矿工程示范
4 结论与建议