Ultrashort Hydraulic Retention Time of Aeration and Nonaeration Constructed Wetlands for a Large Volume of Primary-Treated Wastewater from a Medical Rubber Glove Factory

Table 2

The parameters and corresponded method/equipment used in the analysis.

Parameters	Method/equipment
Acidity-alkaline (pH)	Electrometric method
Biological oxygen demand (BOD)	Azide modification at 20°C, 5 days
Chemical oxygen demand (COD)	Potassium dichromate digestion
Total Kjeldahl nitrogen in water and plants (TKN)	Kjeldahl method
Fat, oil, and grease (FOG)	Extraction by organic solvent
Total suspended solids (TSS)	Total suspended solids dried at 103–105°C
Total dissolved solids (TDS)	Total dissolved solids dried at 103–105°C
Salinity Electric conductivity (EC) Temperature	Multifunctional water quality, tester GI9909