GB/T 31392-2022 in English
VALIDTechnical guidance for the utilization of coal mine water
- Issued on:2022-12-30
- Implemented on:2023-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
《GB/T 31392-2022煤矿矿井水利用技术导则》由TC42（全国煤炭标准化技术委员会）归口，TC42SC5（全国煤炭标准化技术委员会矿井水与废物资源化分会）执行，主管部门为中国煤炭工业协会。
Introduction
In-depth interpretation of GB/T31392-2022 "Technical Guidelines for Mine Water Utilization in Coal Mines"
1. Background and significance of standard revision
With the rapid development of my country's coal industry, the effective utilization of mine water resources has become a key issue for environmental protection and sustainable development.
| Chapter Contents | 2015 Edition | 2022 Edition |
|---|---|---|
| Terms and Definitions | None | New Chapter 3 |
| Technical requirements for treatment | Briefly mentioned | Detailed (see Chapter 5) |
| Management and monitoring | Partial content missing | New Chapter 6, strengthening requirements |
III. Interpretation of main technical terms
1. Purification and deep treatment requirements
According to Article 4.2 of the standard, coal mine water treatment generally requires purification treatment or/and deep treatment. Purification treatment processes may include coagulation, sedimentation (clarification), filtration, adsorption, etc.; deep treatment processes may include microfiltration, ultrafiltration, nanofiltration, reverse osmosis, etc.
Case Analysis: Mine Water Treatment Project of a Coal Mine
The project adopts the purification treatment process of coagulation-sedimentation-filtration to effectively remove suspended solids and colloids. Then it is deeply treated by nanofiltration/reverse osmosis technology, and the quality of the recycled water reaches the industrial boiler water supply standard.
2. Principles of diversion and quality treatment
Article 4.3 of the standard stipulates: Diversion and quality treatment of clean and polluted water should be carried out according to the quality and quantity of raw water. This means that mine water for different purposes should adopt differentiated treatment strategies to improve resource utilization efficiency.
IV. Management and Monitoring Requirements
Articles 6.1-6.3 of the standard put forward clear requirements for the management and monitoring of coal mine water:
- Recycled water pipes for different purposes should be painted with distinct colors and marked with prompt words.
- Water quality sampling points are set at the total outlet after treatment, and online monitoring equipment must include flow meters and key water quality indicator sensors.
- Domestic water should be monitored regularly to ensure that the water quality meets the requirements of GB5749.
V. Implementation Suggestions
To ensure the effective implementation of the standard, the following implementation suggestions are put forward:
- Establish a professional management team to be responsible for the planning and operation and maintenance of the mine water treatment system.
- Select water treatment equipment that meets GB/T19249 and other standards to ensure technological advancement.
- Strengthen the construction of monitoring system to realize real-time monitoring and early warning of water quality.
- Carry out regular staff training to improve environmental awareness and technical level.
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