Bioremediation of Parboiled Rice Effluent Supplemented with Biodiesel-Derived Glycerol Using Pichia pastoris X-33

Table 1

Composition of the crude soybean biodiesel by-product (biodiesel glycerol).

Parameter	Value	Unit	Method^a
Volatiles	26.60	% mass	AOCS Ca 2c-25
Combined alkalinity	1.80	% mass	AOCS Cc 17-95
Methanol	1.37	% mass	EN 14110
Ash	5.30	% mass	ASTM D 874
Specific density	1.30	g·cm^−3	NBR 7148
Acid index	1.70	% mass	ASTM D 664
Glycerol content	54.74	% mass	AOCS 14-46
COD	1.328.040	mg O2·L^−1	[11]
P-PO43−	420	mg P·L^−1	[11]

^aOfficial Methods of Analysis of AOAC; EN: European Standards; ASTM: American Society for Testing and Materials; NBR: Associação Brasileira de Normas Técnicas.