Removal of Total Coliforms, Thermotolerant Coliforms, and Helminth Eggs in Swine Production Wastewater Treated in Anaerobic and Aerobic Reactors

Table 8

Results of the average numbers of Ascaris suum eggs g⁻¹ TS in the sludge of UASB reactors placed in series, at pilot scale, of treatment system I and of the UASB reactor, upflow anaerobic filter (AF) placed in series, at pilot scale, of treatment system II, in assays 1, 2, 3, and 4.

Sampling site	Distance from the entrance (mm)	Ascaris  suum eggs g^−1 TS
System I		Assay 1	Assay 2	Assay 3	Assay 4
UASB (R1)	400	9.27	9.03	8.22	5.59
	1200	5.23	5.36	7.55	4.94
UASB (R2)	400	1.74	2.19	6.34	3.74
	1200	0.94	1.58	4.83	3.03
System II
UASB	200	9.55	8.60	7.04	3.30
	790	4.15	4.35	4.26	2.35
AF	200	4.07	2.41	1.99	1.90
	660	1.68	0.86	0.89	1.56