| In the last five years with the sewage treatment plant to construction, sewage water rate and the normal operation of wastewater treatment plant has not sewage treatment industry difficult problem, during normal operation, how can, on the basis of the optimization of process, the use of advanced equipment, perfect technology, comprehensive management in guarantee the water, save energy, reduce drug consumption, as far as possible to reduce the operation cost is our primary concern. Shenshui shancheng city sewage treatment already worked10years,Through this10years of operation, we in the equipment status and operation data based on the understanding of each section to find out the energy saving point and project implementation. Studies suggest that coarse screen increasing liquid level gauge and installation mat, oxidation ditch replacement instrument position, increase submerged propeller, return pump adopts the restore original impeller and install frequency way, the three can be in three years of recovery, recovery cost later every year can save running cost about$52000. Ascension pump station installation low level protection, appropriate to reduce coarse and fine screen open frequency, reduce a second pond open, sludge dewatering between reconstruction filter cloth washing device and use water flushing, these measures every year can save running cost about173000yuan. Oxidation ditch straight place less loss of the dissolved oxygen (do), the actual operation can be as much as possible until the opening of aeration machine, in order to reduce the aeration machine open sets. Dissolved oxygen and water ammonia nitrogen dual control can effectively save about9%of the energy, but need strong manual intervention. Sludge dewatering between dosing system transformation, can make the unit consumption quantity reduced23%, greatly reduce the agent cost. Use price difference at for sludge dewatering, desliming of electricity cost reduction two-thirds. |
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