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Journal AWWA - Accumulation and Adsorption Capacity of PAC in a Slurry Recirculating Clarifier AWWA期刊-泥浆循环澄清池中PAC的累积和吸附能力
发布日期: 1991-02-01
本研究的目的是考察粉末活性炭(PAC)在固体接触泥浆循环澄清池(SCSRC)中的累积和吸附能力。如果在污泥床中可以实现高浓度的PAC,那么对于只需要间歇去除有机物的工厂来说,PAC可能是颗粒活性炭的有效替代品。基于重量分析法,开发了一种测定澄清池浆液中PAC浓度的方法。研究发现,在SCSRC中可以积累非常高浓度的PAC(>4000 mg/L);通过澄清池累积的PAC曲线显示,PAC分布均匀。等温线测试表明,当PAC在澄清池中的停留时间超过100小时时,含PAC的浆料对氯仿的吸附能力似乎有所下降。包括16篇参考文献、表格和图表。
The objective of this research was to examine the accumulation and adsorption capacity of powdered activated carbon (PAC) in a solids contact slurry recirculating clarifier (SCSRC). If high concentrations of PAC can be achieved in a sludge blanket, then PAC could be an efficient alternative to granular activated carbon for plants requiring only intermittent organics removal. A method to determine the PAC concentration in the clarifier slurry was developed based on a gravimetric analysis approach. It was found that very high concentrations of PAC (>4,000 mg/L) could be accumulated in an SCSRC; the profile of PAC accumulated through the clarifier revealed that the PAC was evenly distributed. Isotherm tests showed that the adsorptive capacity of the PAC-containing slurry for chloroform appeared to decrease somewhat when the residence time of the PAC in the clarifier was longer than 100 h. Includes 16 references, tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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