TABLE 2.

Quinone compositions of sludges^a

Quinone homolog	mol% in:
	Plant sludges					Laboratory sludges
	P-AO1	P-AO2	P-AO3	P-AO4	P-St	L-AO/RS	L-St/RS	L-AO/SS	L-St/SS
Benzoquinones
Q-6	0.26	0.35	0.30	0.55	0.38	0.29	0.21	0.21	0.23
Q-7	0.69	0.65	0.80	0.67	0.82	0.68	0.98	1.45	1.46
Q-8	36.14	38.60	37.28	39.75	35.14	36.41	38.55	47.22	50.43
Q-9	2.80	2.74	4.09	3.01	3.32	3.22	4.03	3.11	4.06
Q-10	9.03	8.41	8.40	10.05	10.81	10.05	10.56	12.88	12.43
Q-11	0.20	0.10	0.11	0.26	0.28	0.15	0.14	0.02	0.08
RQ-7	0.08	0.06
RQ-8	2.06	3.06	1.69	0.20	0.51	0.60
Naphthoquinones
K1	0.54	0.11	0.31	0.31	0.10	0.16	0.15	0.02	0.07
MK-5	0.41	0.36	0.40	0.59	0.24	0.26	0.23		0.03
MK-6	5.24	4.21	5.20	5.10	2.52	5.85	4.66	3.26	2.64
MK-7	11.91	9.21	8.70	7.90	7.45	10.22	9.02	8.23	9.09
MK-8	8.90	5.90	7.31	5.34	9.55	6.68	8.58	2.01	1.98
MK-9	0.44	0.56	0.40	0.42	0.51	0.42	0.41	0.18	0.21
MK-10	1.40	2.86	1.74	1.20	1.44	1.01	0.76	0.39	0.58
MK-11	0.34	0.20	0.33	0.28	0.38	0.22	0.39	0.09	0.11
MK-12	0.25	0.18	0.19	0.18	0.21	0.12	0.14		0.01
MK-7(H2)	0.15	0.57	0.19	0.75	1.35	0.12	0.56
MK-8(H2)	3.36	1.84	2.45	1.76	4.01	2.65	4.41	0.14	0.81
MK-8(H4)	11.83	12.99	12.19	16.90	11.98	13.47	9.36	19.03	14.02
MK-8(H6)	0.03	0.03	0.02	0.01	0.03	0.08	0.07		0.01
MK-9(H2)	0.77	1.20	2.00	1.48	4.21	2.43	2.33	0.21	0.23
MK-9(H4)	1.92	2.03	3.14	2.66	2.25	1.91	1.21	1.33	1.31
MK-9(H6)		0.18	0.12	0.09	0.06	0.02	0.03	0.01	0.01
MK-9(H8)	0.78	3.58	2.64	0.52	2.45	2.95	3.21	0.21	0.21
MK-10(H2)	0.02	0.02		0.02		0.03	0.01

^aThe contents of unidentified quinone homologs, which accounted for 0.2 to 1.2% of the total quinone contents, are not included, and the percentages of identified quinone homologs were recalculated to give a total value of 100%.