Combined Application of Coagulation/Flocculation/Sedimentation and Membrane Separation for the Treatment of Laundry Wastewater

Table 1

Physicochemical parameters evaluated for the characterization of the laundry wastewater, determination methods, and analytical protocols.

Parameter	Unit	Procedure
Total organic carbon (TOC)	mg C L^−1	5310C [40]
Free residual chlorine	mg L^−1	4500-Cl A e G [41]
Thermotolerant coliforms	NMP/100 mL	ISO 9308-1:2014 [42]
Conductivity	μS cm^−1	2510B [40]
Apparent color	mgPt-Co L^−1	8025 [40]
Biochemical oxygen demand (BOD)	mg O2 L^−1	5210 A e B [41]
Chemical oxygen demand (COD)	mg O2 L^−1	5220D [40]
Total nitrogen	mg L^−1	D5176 [43]
pH		4500-H^+ B [41]
Total dissolved solids (TDS)	mg L^−1	2540C [40]
Total solids (TS)	mg L^−1	2540B [40]
Surfactants	mg L^−1 MBAS	5540C [40]
Temperature	°C	2550B [40]
Turbidity	NTU	2130B [40]
Toxicity		NBR 15411-3 [44]

MBAS: methylene blue active substances.