Peculiarity
A wide variety of organic compounds at very high concentrations, with poor biodegradability.
Frequent changes in product types lead to fluctuations in wastewater quality and volume.
High concentrations of pollutants such as CODcr, ammonia nitrogen, and salinity, resulting in strong biological inhibition.
Q&A.
Pharmaceutical wastewater treatment involves complex processes, using a combination of physicochemical pretreatment with biological treatment. Common methods include evaporation, iron-carbon, and Fenton oxidation. However, subject to the influent quality, operational costs, or limited technical expertise, treatment performance often falls short.
Fluctuating toxic or poorly biodegradable organic compounds frequently exceed microbial tolerance threshold, causing shock loads to the biological treatment system and elevating ammonia nitrogen, total nitrogen, and CODcr in the effluent.
The wastewater's complex composition leads to an excessive biological load, limiting the enterprise’s ability to increase production.
Frequent changes in upstream production cause significant variations in influent quality. Once the biological treatment system is impacted, recovery tends to be slow.
Solution
