HJ 794-2016
Technical guidelines for environmental protection in medical organization for check and accept of completed project (English Version)

Standard No.

HJ 794-2016

Language

Chinese, Available in English version

Release Date

2016

Published By

Professional Standard - Environmental Protection

Latest

HJ 794-2016

Introduction

Analysis of the core content of the standard

Key elements	Requirements in the environmental impact assessment stage	Requirements in the acceptance stage
Wastewater treatment facilities	Designed treatment capacity, process route	Actual operating load ≥ 75%, disinfection effect monitoring
Temporary storage of medical waste	Anti-seepage design of temporary storage site	Verification of disposal agreement, inspection of transfer joint form
Environmentally sensitive targets	Impact prediction and analysis	Comparison of actual monitoring data

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Requirements for treatment of special pollution sources

Mercury-containing wastewater from the dental department must be collected and treated separately, and the operation records of the special treatment facilities should be checked during acceptance. A case study of a tertiary hospital showed that the mercury removal rate reached 98.7% after the sulfide precipitation process.

Double disinfection" system must be implemented for wastewater from infectious wards, and special attention should be paid to pathogen indicators such as Mycobacterium tuberculosis during monitoring.

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Key points of acceptance technology

1. Working condition verification: operational data such as inpatient bed occupancy rate and outpatient volume need to be compared with the design scale
2. Characteristic indicator monitoring: special factors in the medical industry such as total residual chlorine and fecal coliform group
3. Hidden project inspection: archiving of construction records of anti-seepage layer and image data

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Solutions to common problems

Problem type	Typical case	Rectification suggestions
Sewage discharge exceeds the standard	COD of a hospital exceeds the standard by 1.8 times	Add hydrolysis acidification pretreatment unit
Medical waste management defects	Transfer records missing	Establish an electronic ledger system