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首页> 外文会议>Membrane technology 2008 >FLAT PLATE MBR ENERGY CONSUMPTION- VILLAGE OF DUNDEE, MI
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FLAT PLATE MBR ENERGY CONSUMPTION- VILLAGE OF DUNDEE, MI

机译：平板式MBR能耗-密西根州邓迪市

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In order to address growing demand and increasingly stringent permit limits, the Villagernof Dundee, MI upgraded their wastewater treatment plant (WWTP) from sequencingrnbatch reactor (SBR) technology to membrane bioreactor (MBR) technology in June, 2005.rnIncluding a solids handling upgrade to aerobic digestion using membrane filtration, therntotal cost to retrofit the plant was $6.55M. Following the upgrade, effluent qualityrnsignificantly improved, the capacity increased from 0.75 MGD to 1.5 MGD and solidsrnhandling costs decreased by roughly 35%. As expected, plant energy demand alsornincreased, roughly doubling SBR requirements. This paper proposes methods forrnimproving plant energy efficiency and cutting power costs by >50%.rnAlthough the plant has not been optimized for energy efficiency, the average demand ofrn1.44 kWh/m~3 (MBR Zone demand < 0.3 kWh/m~3) in 2006 was less than somerncomparable greenfield facilities. For evaluation purposes, monthly energy demand isrntrended for roughly two years of continuous operation. The trended energy data shows arnclear relationship between energy efficiency and treated flow. For example, the plantrn(total including HVAC, etc.) average energy usage in January (2006, 2007) was 0.95rnkWh/m~3 at an average flow of 1.29 MGD. However, during periods of low flow (< 0.6rnMGD), energy requirements have been as high as 2.69 kWh/m~3. The primary reason forrnthe disparity in efficiency appears to be system turndown capabilities and controlrnlimitations.rnAlthough the plant has performed well (no violations) for over two years at a constant airrnscour intensity of 0.015 SCFM/ft~2 the setpoint was recently increased to compensate for arnlow recycle to flow ratio at peak demand. Proportional aeration is now being consideredrnfor optimizing MBR Zone energy requirements between 0.3 kWh/m~3 and 0.52 kWh/m~3rnwhile the same time addressing known hydraulic constraints.
机译：为了满足不断增长的需求和日益严格的许可证限制，密歇根州的Villagernof Dundee在2005年6月将其废水处理厂（WWTP）从定序分批反应器（SBR）技术升级为膜生物反应器（MBR）技术。使用膜过滤进行好氧消化，改造工厂的总成本为655万美元。升级后，废水质量显着改善，处理能力从0.75 MGD提高到1.5 MGD，固体处理成本降低了约35％。不出所料，工厂能源需求也增加了，SBR需求大约翻了一番。本文提出了提高工厂能效并降低电费成本> 50％的方法。rn尽管尚未对工厂进行能效优化，但平均需求量为1.44 kWh / m〜3（MBR区域需求<0.3 kWh / m〜3 ）在2006年还不到可比的绿地设施。为了进行评估，将连续约两年的月能源需求量进行了调整。趋势能源数据显示了能源效率与处理流量之间的明确关系。例如，1月（2006年，2007年）的工厂平均能源使用量（包括HVAC等）为0.95rnkWh / m〜3，平均流量为1.29 MGD。然而，在低流量（<0.6rnMGD）期间，能量需求高达2.69 kWh / m〜3。效率差异的主要原因似乎是系统的关闭能力和控制限制。尽管工厂在恒定的空气强度为0.015 SCFM / ft〜2的情况下运行了两年以上（无违规），但最近仍在增加设定值以补偿arnlow在需求高峰时的循环流量比。现在正在考虑按比例曝气，以在0.3 kWh / m〜3和0.52 kWh / m〜3rn之间优化MBR区域的能源需求，同时解决已知的水力约束。

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