GB/T 39186-2020 in English
VALIDCalculation methods of water saved by projects for iron and steel industry
- Issued on:2020-10-11
- Implemented on:2021-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 39186-2020钢铁行业项目节水量计算方法》由TC442（全国节水标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
GB/T 39186-2020, as a key technical standard for water conservation in the steel industry, has established a water conservation calculation system for scenarios including comprehensive sewage treatment system and circulating water equipment. The standard innovatively proposes the concept of "calibrated water intake", and quantifies the benefits of water conservation by comparing the data of the base period with the statistical reporting period.
Comparison of calculation methods
| Method type | Applicable scenarios | Calculation accuracy | Data requirements |
|---|---|---|---|
| Unit product water intake method | Production process transformation | ±5% | Complete production data is required |
| Pipeline leakage rate method | Water supply system transformation | ±8% | Region metering data is required |
| Direct comparison method | Terminal water-saving equipment | ±3% | Real-time monitoring data is required |
Key points of technical implementation
Case: Wastewater treatment and reuse project in a steel plant
Calculated using the water intake per ton of steel in the base period: when the output after the transformation reached 10.1 million tons, the calibrated water intake reached 42.93 million m³, and the actual water intake was 37.50 million m³, achieving an annual water saving of 5.43 million m³.
Recommendations for standard application
- Data collection specifications: Establish a three-level water metering network to ensure comparability of data between the base period and the statistical reporting period
- Principles for method selection: For process transformation, the unit product method is preferred, and for pipeline network transformation, the leakage rate method is preferred
- Handling of special circumstances: The softened water intake is converted according to the coefficient of GB/T 50109
Analysis of standard evolution
Compared with the general standard GB/T 34148, the innovation of this standard is:
- Refine the differentiated calculation requirements for steel processes (coking, ironmaking, steel rolling, etc.)
- Increase the industrial application scenarios of the pipeline network leakage rate method
- Clear the water intake conversion method for unconventional water sources
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 46726-2025 in English
Management specification for water conservation of civil airports
2025-10-31 -
GB/T 37813-2019 in English
Management specifications for water conservation on public institutions
2019-08-30
