Fur, generally understood as the hair-bearing skin of animals, undergoes chemical or physical processing to preserve the morphological characteristics of its fur fibers, followed by tanning and dyeing to produce value-added products (e.g., fur garments). During this production process, large volumes of wastewater are generated, necessitating wastewater disinfection and systematic water quality monitoring by plant personnel.

Wastewater Monitoring Points in Fur Processing Plants

The identification of monitoring points requires a multi-dimensional approach, as outlined below:

1.Total wastewater discharge outlet: A mandatory monitoring point for all fur processing polluters. Key monitored parameters include total nitrogen (TN), chemical oxygen demand (COD), pH, chroma, chloride ions (Cl⁻), total phosphorus (TP), ammonia nitrogen (NH₃-N), animal and vegetable oils, and flow rate.

2.Workshop or production facility wastewater discharge outlets: Focused on monitoring total chromium (Cr) and flow rate.

3.Rainwater discharge outlet: A dedicated monitoring point targeting suspended solids (SS) and COD.

Key Considerations for Wastewater Monitoring  

· Environmental protection authorities at or above the prefecture-level mandate the installation of fully automatic water quality analyzers for real-time monitoring of pollutant indicators. Water quality testing equipmentwith parameter-specific automatic detection functions, such as those produced by Hangzhou Modi, complies with relevant regulatory requirements.

· Daily monitoring is required during periods of rainwater discharge.