Thailand is the country of the current electric energy consumption in industrial plants. In both the manufacturing process and the removal of waste, which is a biological waste water treatment sludge system (Activated Sludge) is one of the acceleration in the system of electric power consumption in our therapy is quite high. Waste water treatment in order to properly benchmark quality effluent.The study found that from the aerator (Aeration blower). In two of the tank unit with 3 units and, as a result, the full value of oxygen dissolved in water (Dissolved oxygen). There is a value between 4-7 mg/l. Which has a high value, and does not cause beneficial to the treatment system, thus causing the project to reduce power consumption in a biological wastewater treatment system (Energy Saving Program Biological Wastewater Treatment Plant at) that the purpose of this project is to reduce the power consumption of the system without waste water treatment?System performance and effluent quality, significant changes will be made to switch to more of a trial and 2 range is fixed and close off oxygen when dissolved in water of less than 1 mg/l based on theoretical calculations and collect data for comparison.The result of the experiment found that the performance, quality, and waste water treatment system was not changed significantly. In the range 1 to 98% per treatment system performance close to 1 when calculated as fixed costs will be reduced by up to 391,680 baht/year and 2% 97 per treatment system performance close-open when the dissolved oxygen value lower than 1 mg/l. Which can reduce up to baht/year 342,720 were proposed in the guidelines for reducing power consumption in a biological wastewater treatment system by making the switch to work, as appropriate, of the oxygen dissolved in the water.
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