Acharya Bhavik K, Mohana Sarayu, Madamwar Datta
BRD School of Biosciences, Sardar Patel Maidan, Vadtal Road, Sattelite Campus, P Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India.
Bioresour Technol. 2008 Jul;99(11):4621-6. doi: 10.1016/j.biortech.2007.06.060. Epub 2007 Aug 31.
Anaerobic digestion of wastewater from a distillery industry having very high COD (1,10,000-1,90,000 mg/L) and BOD (50,000-60,000 mg/L) was studied in a continuously fed, up flow fixed film column reactor using different support materials such as charcoal, coconut coir and nylon fibers under varying hydraulic retention time and organic loading rates. The seed consortium was prepared by enrichment with distillery spent wash in a conventional type reactor having working capacity of 3 L and was used for charging the anaerobic column reactor. Amongst the various support materials studied the reactor having coconut coir could treat distillery spent wash at 8d hydraulic retention time with organic loading rate of 23.25 kg COD m(-3)d(-1) leading to 64% COD reduction with biogas production of 7.2 m3 m(-3)d(-1) having high methane yield without any pretreatment or neutralization of the distillery spent wash. This study indicates fixed film biomethanation of distillery spent wash using coconut coir as the support material appears to be a cost effective and promising technology for mitigating the problems caused by distillery effluent.
在连续进料的上流式固定膜柱式反应器中，使用木炭、椰壳纤维和尼龙纤维等不同支撑材料，在不同水力停留时间和有机负荷率下，对一家酿酒厂具有非常高化学需氧量（110,000 - 190,000毫克/升）和生化需氧量（50,000 - 60,000毫克/升）的废水进行厌氧消化研究。种子菌群通过在一个工作容量为3升的传统型反应器中用酿酒厂废醪液富集制备而成，并用于给厌氧柱式反应器进料。在所研究的各种支撑材料中，装有椰壳纤维的反应器在水力停留时间为8天、有机负荷率为23.25千克化学需氧量/立方米·天的情况下，能够处理酿酒厂废醪液，导致化学需氧量降低64%，沼气产量为7.2立方米/立方米·天，甲烷产率高，且无需对酿酒厂废醪液进行任何预处理或中和。这项研究表明，使用椰壳纤维作为支撑材料对酿酒厂废醪液进行固定膜生物甲烷化似乎是一种经济有效的、有前景的技术，可缓解酿酒厂废水造成的问题。
