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利用竹炭-微生物联合试验,模拟去除富营养水中的磷,分别考察了厌氧时间、反应时间、竹炭用量、微生物活性液用量等因素对模拟废水中磷去除效果的影响,研究了竹炭-微生物联合去除总磷的反应动力学;同时进行了与单纯生物降解和竹炭吸附的对比试验,探讨了竹炭-微生物联合处理富营养水的交互效应。结果表明,厌氧时间、反应时间、竹炭用量、微生物活性液用量、进水TP浓度、pH值、DO等因素均不同程度地影响磷的去除效果,竹炭-微生物联合去除水中磷的最优条件推荐为:厌氧24 h、反应72 h,竹炭用量20.00 g.L-1,微生物活性液用量3%,pH值7.00,厌氧和好氧时溶解氧分别为0.09~0.21 mg.L-1和2.00 mg.L-1;竹炭-微生物法对磷的去除效果优于竹炭吸附和单纯的生物降解,协同作用为40.31%。 相似文献
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改性玉米秸秆吸附处理含Cu废水 总被引:1,自引:0,他引:1
以玉米秸秆为原料,采用微波加热-氯化锌活化法进行改性,探讨了吸附剂投加量、pH值、温度等因素对废水中Cu去除率的影响.结果表明,吸附剂对模拟废水中Cu的最高去除率可达90%以上;当pH值在5.0~6.0间、温度为30~35℃、吸附剂投加量为20 g/L,吸附时间为60 min时达最佳去除效果;等温吸附曲线可用Langmuir、Temkin和Freundlich模型拟合,前二者拟合较好.Abstract: Adsorption of Cu from wastewater onto modified corn stalk impregnated with zinc chloride by microwave heating was investigated. The adsorption was studied by considering the effects of various pa-rameters on the removal rate of Cu, such as pH, the dosage of absorbent and temperature. The results showed that the modified absorbent used in this study was efficient , with a removal ratio of Cu up to 90%or more. Optimum results of Cu removal were obtained with a pH of 5.0~6.0, at 30~35℃and with an adsorbent dosage of 20 g/L and an adsorption time of 60 min. The Langmuir, Temkin and Freundlich equa-tions can describe the absorption characteristics of Cu, the Langmuir and Temkin equations being better. 相似文献
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