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Controlling measures of cost reduction for wastewater treatment in vegetable oil plant
  
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KeyWord:vegetable oil plant  wastewater treatment cost  cost reduction measure
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YANG Ruizhu Production Department, COFCO Oil & Oilseeds，Beijing 100020，China) 
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Abstract:
      The wastewater of a vegetable oil plant is mainly from production wastewater, with high-COD, high-total phosphorus, so the treatment cost is high. According to the cost components of wastewater treatment, the cost reduction methods were analyzed, and the corresponding measures were proposed as follows: source control, sludge reduction, metering management, frequency control, adjustment of aeration and air flotation, scientific dosing with on-line instruments, and strengthening equipment maintenance management. After the implementation of cost reduction measures for half year, the wastewater treatment cost of an enterprise was reduced by 10.5% and the annual cost was nearly 900 000 yuan.
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