IBAC工艺对洗浴废水中有机污染物的去除效能与机理

Organic matter removal for water reuse by IBAC reactor

采用以固定化生物活性炭IBAC为主的处理工艺对洗浴废水进行处理.处理后水的浊度、高锰酸盐指数、LAS和浴臭平均值分别为 2.46NTU,3.2mg/L,0.13mg/L和 0级臭味,为了保证整体工艺的出水,IBAC进水的浊度要小于 10NTU;通过GC/MS的检测,IBAC对这种水中的有机物具有较好的去除作用.在运行 10个月后的IBAC上,人工固定化的工程菌仍占优势,活性炭也具有较高的碘值和亚甲兰值.IBAC的净化作用是以微生物的降解作用为主、活性炭的物理吸附和二者的协同作用为辅.

A new bathing wastewater reclamation process, which employs IBAC (immobilized biological activated carbon) reactor as its key part, is introduced. Using this process, the effluent turbidity, permanganate index, LAS (linear alkylbenzene sulfonate) and odor average level of the treated water are 2.46 NTU, 3.2 mg/L, 0.13 mg/L and odorless respectively. On condition that the turbidity of the influent water is less than 10 NTU, the effluent quality of the treatment process meets the Sanitary Standard for Drinking. GC/MS analysis proves that the IBAC reactor has excellent organic pollutants removal ability in this experiment. After 10 months of continuous operation, the engineering bacteria remains dominant within the IBAC reactor, and the activated carbon still keeps high iodine number and methylene blue adsorption. It is likely that the biodegradation function of engineering bacteria presents main contribution to the organic pollutants removal ability in the IBAC reactor, while the adsorption ability of activated carbon helps.