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首页> 外文会议>International Water Association(IWA) Conference; 20050518-20; Xi'an(CN) >Effect of acetate and nitrate on biological phosphorus removal in sequencing batch reactor with different concentrations
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Effect of acetate and nitrate on biological phosphorus removal in sequencing batch reactor with different concentrations

机译：乙酸盐和硝酸盐对不同浓度顺序批处理反应器中生物除磷的影响

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摘要

An anaerobic-anoxic-aerobic sequencing batch reactor (SBR) has been adopted for biological phosphorus removal from synthetic wastewater. Two parameters were investigated on phosphorus release and uptake: the amount of added acetate and nitrate. The experimental results showed that the rates of phosphorus release and uptake have no significant differences responsible for variety of acetate concentration on condition that the influent acetate was higher than 230mg-COD/l. On the other hand, when nitrate concentration was lower than 30mg-N/l, the higher the concentration of nitrate in anoxic, the higher the rate of anoxic phosphorus uptake. The removal efficiency of phosphorus was 90%, and the 24mg-P and 120mg-N were removed at the expense of only 550mg-COD in SBR system.
机译：厌氧-好氧-好氧顺序分批反应器（SBR）已用于从合成废水中去除生物磷。研究了磷释放和吸收的两个参数：乙酸盐和硝酸盐的添加量。实验结果表明，在进水乙酸盐高于230mg-COD / l的条件下，磷盐释放和吸收速率对乙酸盐浓度的变化没有显着影响。另一方面，当硝酸盐浓度低于30mg-N / l时，缺氧物中硝酸盐的浓度越高，缺氧磷的吸收率越高。磷的去除效率为90％，在SBR系统中仅以550mg-COD为代价去除了24mg-P和120mg-N。

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