糖厂高浓度有机废水的转化利用

糖厂生产酒精过程产生的废水一般含COD10～12万mg/L,BOD56～8万mg/L,属高浓度有机废水,极难治理。国内外提出过多种治理技术,但由于投资和运行费用太高,很难在实际的治理过程应用。近几年出现的冲灰水吸附技术在糖厂高浓度的治理过程中得到一定的应用,但对该技术所涉及的有关计算数据,治理处理前后高浓度有机废水和炉灰的物理、化学成分,废水减少量等参数未进行系统的监测和研究。并重点对糖厂高浓度有机废水在水膜除尘器中循环的有关转化利用进行了理论计算,同时对实际运行过程中的水量平衡进行了测算,理论计算的结果与实测结果基本吻合。为冲灰水吸附技术治理糖厂高浓度有机废水提供了理论支持。

Conversion of High Concentration Organic Wastewater from Sugar Works

It is very difficult to treat wastewater from alcohol production process in a sugar works with CODcr and BOD5 concentration of 0.10~0.12 million mg/L and 60,000~80,000 mg/L respectively.The conversion and reutilization of organic wastewater in the cycle of water membrane de-duster was calculated theoretically and water balance in real operation was estimated,with a general accordance between the calculated results and monitored data,which can provide technical support for absorption technique of fly ash washing water to treat high concentration organic wastewater.