矿井废水资源化利用意义重大，需做好政策、技术、区域三大协同

Core Viewpoint - The development of innovative technologies for the treatment and resource utilization of mine wastewater is crucial for addressing environmental concerns and enhancing water resource management in coal mining regions [1][2]. Group 1: Innovations in Mine Wastewater Treatment - Shaanxi Coal and Chemical Industry Group has developed an intelligent water treatment system that integrates mixed separation and reverse osmosis technology, allowing for the on-site purification and reuse of mine wastewater [1]. - Henan Province has established a collaborative mechanism for the centralized collection, unified treatment, and coordinated distribution of mine wastewater, promoting its harmless treatment and full utilization [1]. - Heilongjiang Long Coal Shuangyashan Mining Company is exploring the conversion of mine wastewater into production and domestic water [1]. Group 2: Importance of Resource Utilization - Mine wastewater is a byproduct of mining operations and can be a stable and controllable resource if effectively utilized, alleviating water scarcity in coal-producing areas like Shanxi, Shaanxi, and Inner Mongolia [2]. - Proper treatment of mine wastewater can prevent geological disasters such as ground subsidence and reduce pollution of surface water and soil [2]. - Increasing the resource utilization rate of mine wastewater can meet water demands in mining areas and improve the local water ecosystem [2]. Group 3: Recommendations for Improvement - Strengthening policy collaboration is essential, as mine wastewater lacks a unified pricing system and market mechanisms, hindering sustainable commercial models [3]. - There is a need for cross-departmental collaboration in resource management, legal regulations, and policy incentives to create a supportive institutional framework for mine wastewater utilization [3]. - Technical collaboration is necessary due to the diverse geological conditions and wastewater characteristics across different mines, requiring tailored treatment solutions [4]. Group 4: Regional Collaboration - For concentrated mining areas, a comprehensive policy, technical, and economic collaboration mechanism should be established to promote mine wastewater resource utilization [5]. - Incentives such as tax reductions and low-interest loans should be provided to companies adopting advanced technologies for wastewater utilization [5]. - The establishment of a cross-mining area wastewater collection and distribution system can facilitate market mechanisms for wastewater usage rights, promoting a circular economy model [5].