In the light of a practical example, this article points out the existing problems with the design standards of horizontal flow type grit chamber,and discusses the factors affecting the grit deposit.

• 结合工程实例,指出现行平流式沉砂池设计规范存在的问题,探讨了影响平流式沉砂池沉砂效率的因素,提出了可供选择的设计方法。