Sewage Treatment Plant in Heye Town, Loudi City, Hunan Province

Water Quality Monitoring at the Sewage Treatment Plant in Heye Town, Loudi City, Hunan Province

Monitoring Indicators

Physical indicators: such as temperature, color, turbidity, suspended solids (SS), etc.

Chemical indicators: pH value, dissolved oxygen (DO), chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD₅), ammonia nitrogen (NH₃-N), total phosphorus (TP), total nitrogen (TN), heavy metal content (e.g., chromium, mercury, lead, etc.).

Microbiological indicators: coliform bacteria count, etc.

Monitoring Frequency

Monitoring frequency may vary depending on the specific indicators and the requirements of local environmental protection authorities.

For key pollutants, the monitoring frequency may be higher, possibly daily or weekly.

Routine indicators may be monitored monthly or quarterly.

Laws, Regulations and Standards

The discharge from the sewage treatment plant must comply with relevant national and local laws, regulations, and discharge standards.