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首页> 外文会议>International Water Association(IWA) Conference; 20050518-20; Xi'an(CN) >Treatment of industrial wastewater in a new bi-external recycling biological fluidized bed
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Treatment of industrial wastewater in a new bi-external recycling biological fluidized bed

机译：新型双外部循环生物流化床处理工业废水

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摘要

A new wastewater treatment equipment - Bi-external recycling Biological Fluidized Bed (BRBFB) is introduced. Anaerobic digestion, aerobic aeration and settlement processes followed a fixed sequential procedure are compacted into this reactor. As there is no waste sludge to be treated in this system, less secondary contamination is produced. The removal mechanism of COD_(Cr) in each single process and the optimization of the combined operation procedure in the system are determined for a 12-hour cycle including an inflow process, anaerobic digestion process (D, 4 hr), an aerobic aeration process (A, 4 hr), a settlement process (S, 1 hr), an outflow process (O, 0.5 hr) and a recess process (R, 3.5hr). Utilizing BRBFB to treat a synthetic dying wastewater, 90 % of COD_(Cr) is removed for a higher concentration water (COD_(Cr) 1000-1200mg/L) and 82% of COD_(Cr) is removed for a lower concentration water (COD_(Cr) 400-600mg/L). Near 100% color removal and discharging standards for industry wastewater are achieved. It is demonstrated that the BRBFB was an effective equipment both in energy and in space .
机译：引入了一种新的废水处理设备-双外部循环生物流化床（BRBFB）。按照固定的顺序程序进行厌氧消化，好氧曝气和沉降过程，然后压入该反应器。由于该系统中没有待处理的废渣，因此产生的二次污染较少。确定了一个12小时的周期（包括流入过程，厌氧消化过程（D，4小时），有氧曝气过程）中每个单个过程中COD_（Cr）的去除机理以及系统中联合操作程序的优化。 （A，4小时），沉降过程（S，1小时），流出过程（O，0.5小时）和凹陷过程（R，3.5小时）。利用BRBFB处理合成染料废水，高浓度水（COD_（Cr）1000-1200mg / L）去除90％的COD_（Cr），低浓度水去除82％的COD_（Cr）（ COD_（Cr）400-600mg / L）。达到了工业废水近100％的脱色和排放标准。事实证明，BRBFB在能源和空间方面都是有效的设备。

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