Biogas Production through Anaerobic Codigestion of Distillery Wastewater Sludge and Disposable Spent Yeast

Table 1

Standard testing methods for physicochemical parameters of distillery spent sludge and yeast.

S. no	Parameters	Standard testing methods used
1	TN	TNT persulphate digestion method, HACH’s UV-VIS spectrophotometer (model DR6000, USA)
2	TP	APHA 5220 B, molybdovanadate method, HACH’s UV-VIS spectrophotometer (model DR6000, USA)
3	TS	APHA 5220 B, total solid dried at 103–105°C
4	COD	APHA 5220 B, open reflux method
5	BOD5	APHA 5210 B, 5-day BOD test
6	pH	HACH instrument (model HQ440D, USA) field case
7	Temperature	HACH instrument (model HQ440D, USA) field case