Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater

Table 2

Chemical parameters of the collected field tannery wastewater sample.

Parameters	Units	Raw sample	Filtered sample
Total hardness	mg/L as CaCO3	5900	7200
Alkalinity	mg/L	3540	7030
Cl^−	mg/L	660	900
	mg/L	3100	3700
	mg/L	97	61
NH3-N	mg/L	2300	2175
NO3-N	mg/L	40	—
	mg/L	0.026	0.082
	mg/L	4270	8540
COD	mg/L	56,600	67,600
BOD5	mg/L	22,000	24,000