Rao A Gangagni, Naidu G Venkata, Prasad K Krishna, Rao N Chandrasekhar, Mohan S Venkata, Jetty Annapurna, Sarma P N
Biochemical and Environmental Engineering Centre, Indian Institute of Chemical Technology, Hyderabad 500 007, India.
Bioresour Technol. 2004 Jul;93(3):241-7. doi: 10.1016/j.biortech.2003.11.004.
Studies are carried out on the treatment of wastewater from a bulk drug industry using an anaerobic fixed film reactor (AFFR) designed and fabricated in the laboratory. The chemical oxygen demand (COD) and total dissolved solids (TDS) of the wastewater are found to be very high with low Biochemical oxygen demand (BOD) to COD ratio and high total suspended solid (TSS) concentration. Acclimatization of seed consortia and start up of the reactor is carried out by directly using the wastewater, which resulted in reducing the period of startup to 30 days. The reactor is studied at different organic loading rates (OLR) and it is found that the optimum OLR is 10 kg COD/m3/day. The wastewater under investigation, which is having considerable quantity of SS, is treated anaerobically without any pretreatment. The COD and BOD of the reactor outlet wastewater are monitored and reduction at steady state and optimum OLR is observed to be 60-70% of COD and 80-90% of BOD. The reactor is subjected to organic shock loads at two different OLR and it is observed that the reactor could withstand shocks and performance could be restored to normalcy at that OLR. The results obtained indicated that AFFR could be used efficiently for the treatment of wastewater from a bulk drug industry having high COD, TDS and TSS.
利用在实验室设计和制造的厌氧固定膜反应器（AFFR）对原料药行业的废水处理进行了研究。发现该废水的化学需氧量（COD）和总溶解固体（TDS）非常高，生化需氧量（BOD）与COD的比值低，总悬浮固体（TSS）浓度高。通过直接使用该废水对种子菌群进行驯化并启动反应器，这使得启动时间缩短至30天。在不同的有机负荷率（OLR）下对该反应器进行了研究，发现最佳OLR为10 kg COD/m³/天。所研究的含有大量SS的废水未经任何预处理就进行了厌氧处理。对反应器出口废水的COD和BOD进行了监测，发现在稳定状态和最佳OLR下，COD的降低率为60 - 70%，BOD的降低率为80 - 90%。在两种不同的OLR下对反应器施加有机冲击负荷，发现反应器能够承受冲击，并且在该OLR下性能可恢复正常。所得结果表明，AFFR可有效地用于处理来自原料药行业的具有高COD、TDS和TSS的废水。
