A system which combined ASBR with pulsed SBR (PSBR) was introduced to enhance COD and nitrogen removal from the real landfill leachate. ASBR was used to degrade the organics from raw leachate mainly. Three equal feeds mode was applied in PSBR operation. The results obtained from the joint operation period (157 days) show that the COD removal rate of ASBR was 83-88% under the specific loading rate of 0.43-0.62 gCOD gVSS(-1) day(-1). PSBR's operation can be divided into four phases according to the different influent NH(4)(+)-N which increased to 800-1000 mg L(-1) finally, and total nitrogen (TN) removal rate of more than 90% with the effluent TN of less than 40 mg L(-1) was obtained. PHB and glycogen can act as electron donor for endogenous denitritation orderly with the hypothetical function from DNGAOs. Consequently, the system achieved COD and TN removal rate of 89.61-96.73% and 97.03-98.87%, respectively, without any extra carbon source addition.

译文

:引入了结合了ASBR和脉冲SBR(PSBR)的系统,以提高从真实垃圾填埋场渗滤液中去除COD和氮的能力。 ASBR主要用于降解原渗滤液中的有机物。在PSBR操作中应用了三个均等进给模式。从联合运行期(157天)获得的结果表明,在比加载率为0.43-0.62 gCOD gVSS(-1)day(-1)的条件下,ASBR的COD去除率为83-88%。 PSBR的操作可根据进水NH(4)-N的不同而分为四个阶段,最终将其增加至800-1000 mg L(-1),而总氮(TN)去除率超过90%,获得的废水总氮少于40 mg L(-1)。 PHB和糖原可以按DNGAOs的假设功能有序地充当内源性反硝化的电子供体。因此,该系统在不添加任何碳源的情况下,分别实现了89.61-96.73%和97.03-98.87%的COD和TN去除率。

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