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A pharmaceutical wastewater treatment upgrade project in Jinan, Shandong Province
Pharmaceutical wastewater is characterized by significant fluctuations in water quality, complex pollutant profiles, and high concentrations of toxic substances, placing extremely stringent demands on the stability of wastewater treatment systems. The project originally relied on a conventional treatment process combined with an MBR system, which not only exhibited poor shock resistance and frequent effluent exceedances but also suffered from cumbersome operations and maintenance, high equipment failure rates, and elevated operating costs. Moreover, the substantial sludge production resulted in substantial hazardous waste disposal expenses, further burdening the enterprise.
Following the LSP process upgrade, numerous drawbacks of conventional technologies and MBR systems have been significantly mitigated. The system’s pollutant‑removal capacity has been markedly enhanced, ensuring long‑term effluent quality that consistently meets regulatory standards. Leveraging the LSP core’s low‑sludge advantage, sludge production has been sharply reduced, substantially cutting hazardous‑waste disposal costs while simplifying operations and maintenance and lowering energy consumption. This enables stable compliance with discharge limits, efficient operation and maintenance, and reduced carbon emissions and costs in pharmaceutical wastewater treatment.
Influent water quality: COD≤3000mg/l, NH 3 -N≤150mg/l
Effluent water quality: COD≤50mg/l, NH 3 -N≤1mg/l
Processing capacity: 2000 m³/d
Original treatment process: Aerobic + MBR process
Post-modification process: LSP process
Effect: Following the retrofit, the COD removal rate improved significantly, sludge production was markedly reduced, and sludge disposal costs were substantially lowered.
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