西安市城市污水处理调查及可利用量分析

The Investigation on Municipal Wastewater Treatment and the Analysis of Available Quantity in Xi’an

根据西安市污水处理厂与北石桥污水处理厂可比拟性分析。结合北石桥污水处理厂实测日运行资料,计算按日最大处理水量整十百分比供水时,所需调蓄池容积和年余(缺)水量,据此判定可利用水量,并验证该方法的可行性。最后将该结果和西安市现状利用率对比。结果表明:在考虑中水充分利用、供水保证率较高和修建最大日处理水量4~8倍容积的调蓄池情况下,可利用量为最大日处理水量的70%~80%。这一结果明显高于西安市污水开发利用率,西安市污水资源化利用潜力较大。

According to the Xi’an sewage treatment plant and Beishi Bridge sewage treatment plant compa-rability analysis. Combined with the measured daily operation data of Beishi Bridge Sewage Treatment Plant, the required storage pond volume and annual surplus (lack) water quantity were calculated when the daily maximum treated water quantity was 10 percent, and the available water quantity was determined accordingly, and the feasibility of the method was verified. Finally, the results are compared with the current utilization rate of Xi’an. The results show that the available amount is 70%~80% of the maximum daily treated water under the condition of the full utilization of reclaimed water, the high water supply guarantee rate and the construction of the storage pond with 4~8 times the maximum daily treated water volume. This result is obviously higher than the utilization rate of sewage development in Xi’an city, and the potential of sewage resource utilization in Xi’an city is great.