GB/T 38907-2020 in English
VALIDWater saving enterprises- - Polysilicon industry
- Issued on:2020-06-02
- Implemented on:2020-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
《GB/T 38907-2020节水型企业 多晶硅行业》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
Interpretation of the core content of the standard
This standard establishes a water-saving enterprise evaluation system for the polysilicon industry for the first time, and builds a complete evaluation framework through 3 categories and 11 items basic requirements, 7 major management indicators and 4 technical indicators.
Analysis of key technical indicators
| Indicator name | Benchmark value | International comparison | Key points for meeting the standards |
|---|---|---|---|
| Water intake per unit of polysilicon | ≤80m³/t | 15% stricter than the EU SEMI standard | A graded metering system needs to be established |
| Water reuse rate | ≥98% | Leading the average level of the photovoltaic industry | Forced steam condensate recovery |
| Water leakage rate | ≤2.54% | Equivalent to ISO 14046 requirements | Requires intelligent leak detection system |
Key points for standard implementation
Typical application cases
An enterprise with an annual output of 30,000 tons of polysilicon implemented the following:
- Established a three-level water metering network (in compliance with GB24789)
- Renovated the closed cooling tower system
- Installed a steam condensate recovery device
Reduced the unit water intake from 92m³/t to 68m³/t, saving 720,000 tons of water annually.
Analysis of Standard Evolution
This standard adds the following to GB/T18916.47:
- Mandatory water balance test cycle (≤3 years)
- Clear steam condensate recovery technology path
- Introduce comprehensive water loss rate assessment
Reflects the transformation trend of my country's polysilicon industry from extensive water use to refined management.
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