Evaluation of Particulate Matter Capture and Long-Term Clogging Characteristics of Different Filter Media for Pavement Runoff Treatment

Table 3

Typical diameter indices of runoff through filter media with different layer thickness.

Index (μm)	Influent runoff	Zeolite			Ceramsite			Slag			Diatomite			Vesuvianite
		1–3	3–6	6–8	1–3	3–6	6–8	1–3	3–6	6–8	1–3	3–6	6–8	1–3	3–6	6–8
D10	52.3	1.63	1.76	2.27	1.88	2.11	2.61	1.53	2.22	2.53	1.90	1.98	2.24	1.69	1.83	3.56
D50	193.6	6.66	9.52	12.5	8.37	12.9	22.0	6.4	15.8	16.4	9.54	11.1	14.0	7.73	9.02	45.5
D90	400.7	33.4	64.0	77.5	57.5	95.7	136.0	32.3	117.9	127.2	53.3	67.3	72.5	43.2	47.8	94.0