污水处理厂乙酸钠碳源投加量理论计算公式的修正与应用实例

Correction and Application Example of Theoretical Calculation Formula for Sodium Acetate Carbon Source Dosage in Wastewater Treatment Plants

为保证进水碳源不足的污水处理厂出水总氮稳定达标,需投加外部碳源。乙酸钠是普遍应用的一种碳源,但目前缺乏相对精确的乙酸钠投加量计算方法。基于数学推导,得出一个较精确的乙酸钠投加量计算公式,并成功应用于工程实践,出水水质稳定达标,实现了节约药耗及降低成本的预期目标,可为我国城市污水处理厂外加碳源的设计及后期运营提供参考。

In order to ensure that the total nitrogen in the effluent of WWTP with insufficient carbon source meets the discharge standards,it is necessary to add external carbon source.Sodium acetate is the most commonly used carbon source,but relatively accurate calculation methods for sodium acetate dosage are lacking at present.A more accurate formula for calculating sodium acetate dosage was obtained through mathematical derivation,which was successfully applied in engineering practice.The effluent quality reached the standard stably,and the expected goals of saving drug consumption and reducing cost were realized.It can provide reference for the design and later operation of additional carbon source in WWTP.