T/LZZLXH 037-2020 Active Group standards

T/LZZLXH 037-2020 Laboratory waste liquid treatment specifications for heavy metals

Publish Date: 2020-09-07 Implement Date: 2020-10-10 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/LZZLXH 037-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Integrated Environmental Protection

ICS Name: Waste disposal and treatment equipment and devices

Publish Date: 2020-09-07

Implement Date: 2020-10-10

Scope

Scope: In order to ensure that the chemical treatment of heavy metal wastewater in our city complies with relevant national policies, guidelines, and regulations, and is handled efficiently and economically, this standard is formulated. This standard applies to all laboratory industries that choose chemical methods to treat heavy metal-containing wastewater. When treating heavy metal wastewater, priority should be given to the recovery of valuable metals or their comprehensive utilization. For the sediment generated during the treatment process, it should be rendered harmless or properly disposed of. When treating heavy metal wastewater, priority should be given to reuse. The treated wastewater should meet the water quality requirements for reuse, and the discharged wastewater after treatment should comply with the provisions of the "Integrated Wastewater Discharge Standards" GB 8978 and the relevant requirements of local environmental protection departments. In addition to meeting the requirements of this standard, the chemical treatment of heavy metal wastewater shall also comply with the relevant national or local standards and norms. Main technical content: 4. Treatment methods 4.1 General provisions 1) The selection of wastewater treatment methods and reagents should consider factors such as wastewater volume, water quality, the form of recovering valuable metals and their utilization, the source and price of reagents, local conditions, and the water quality requirements after treatment. After conducting a technical and economic comparison, the appropriate method should be determined. 2) The feasibility of using wastewater, waste gas, or waste residue from laboratories or nearby areas to treat wastewater should be fully studied, so as to achieve the goal of treating waste with waste. 3) For different sources of heavy metal wastewater, the centralized or decentralized treatment should be determined based on factors such as water quality, trea