T/SAEPI 018-2024 High-tech Industrial Zone Evaluation Method for Zero Wastewater Discharge in the Integrated Circuit Industry

Scope

Scope: This document describes the terminology and definitions, evaluation index system, and implementation plan for the near-zero discharge evaluation of wastewater in the integrated circuit industry of high-tech parks. This document is applicable to all high-tech parks engaged in the integrated circuit industry in conducting near-zero discharge evaluations of wastewater. Other parks or integrated circuit enterprises not included in park management may refer to this document for implementation. Main Technical Content: 4.1 Primary Index Evaluation The primary index evaluation includes four indicators: resource consumption, pollution discharge, material cycle, and environmental management. a) Resource consumption indicators include fresh water consumption per unit output value and electricity consumption per ton of wastewater treatment. b) Pollution discharge indicators include COD discharge per unit output value, ammonia nitrogen discharge per unit output value, and fluoride discharge per unit output value. c) Material cycle indicators include the reuse rate of recycled water (secondary water) and the reuse rate of waste activated carbon from wastewater treatment. d) Environmental management indicators include the cost of recycled water per ton and the compliance of key pollutant sources with discharge standards. 4.2 Secondary Indices 4.2.1 Fresh Water Consumption per Unit Output Value The fresh water consumption per unit output value is calculated according to Equation (1): ?1 = ?························· (1) where: S1 – Fresh water consumption per unit output value, in tons/10,000 yuan; T/SAEPI 018–20243a – Fresh water consumption of the enterprise, in tons; b – Enterprise output value, in 10,000 yuan. Here, the fresh water consumption and output value data come from official data provided by the economic informatization and commerce authorities of the jurisdiction, or from data provided by the ecological environment bureaus of th

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