COMBINED TREATMENT OF VINASSE BY AN UPFLOW ANAEROBIC FILTER-REACTOR AND OZONATION PROCESS

Cabrera-Díaz, A.; Pereda-Reyes, I.; Dueñas-Moreno, J.; Véliz-Lorenzo, E.; Díaz-Marrero, M. A.; Menéndez-Gutiérrez, C. L.; Oliva-Merencio, D.; Zaiat, M.

doi:10.1590/0104-6632.20160334s20150268

A. Cabrera-Díaz ^**To whom correspondence should be addressed

Process Engineering Center, (CIPRO), Universidad Tecnológica de La Habana José Antonio Echeverría (Cujae), 11901, 114 Street, Marianao, Havana, Cuba. Phone: + (53) 537 266 3398, Fax: + (53) 537 267 2964. E-mail: ania@quimica.cujae.edu.cu

I. Pereda-Reyes

Process Engineering Center, (CIPRO), Universidad Tecnológica de La Habana José Antonio Echeverría (Cujae), 11901, 114 Street, Marianao, Havana, Cuba. Phone: + (53) 537 266 3398, Fax: + (53) 537 267 2964. E-mail: ania@quimica.cujae.edu.cu

J. Dueñas-Moreno

Process Engineering Center, (CIPRO), Universidad Tecnológica de La Habana José Antonio Echeverría (Cujae), 11901, 114 Street, Marianao, Havana, Cuba. Phone: + (53) 537 266 3398, Fax: + (53) 537 267 2964. E-mail: ania@quimica.cujae.edu.cu

E. Véliz-Lorenzo

National Center for Scientific Research, (CNIC), 15202, Av. 25 and 158, Cubanacan, Playa, Havana, Cuba.

M. A. Díaz-Marrero

Process Engineering Center, (CIPRO), Universidad Tecnológica de La Habana José Antonio Echeverría (Cujae), 11901, 114 Street, Marianao, Havana, Cuba. Phone: + (53) 537 266 3398, Fax: + (53) 537 267 2964. E-mail: ania@quimica.cujae.edu.cu

C. L. Menéndez-Gutiérrez

Process Engineering Center, (CIPRO), Universidad Tecnológica de La Habana José Antonio Echeverría (Cujae), 11901, 114 Street, Marianao, Havana, Cuba. Phone: + (53) 537 266 3398, Fax: + (53) 537 267 2964. E-mail: ania@quimica.cujae.edu.cu

D. Oliva-Merencio

Study Center for Renewable Energy Technology, (CETER), Universidad Tecnológica de La Habana José Antonio Echeverría (Cujae), 11901, 114 Street, Marianao, Havana, Cuba.

M. Zaiat

Biological Processes Laboratory, Center for Research, Development and Innovation in Environmental Engineering, São Carlos School of Engineering, (EESC), University of São Paulo, (USP), Engenharia Ambiental, Bloco 4-F, Av. João Dagnone 1100, Santa Angelina, 13563-120, São Carlos - SP, Brazil.

*To whom correspondence should be addressed

Factor	Range of levels
C(O₃)_g (mgO₃ L^-1)	70	100
tc (h)	1	3
pH	7.5	10

Parameter	Raw vinasse	Digested effluents with different OLRs (kgCOD m^-3d^-1)
Parameter	Raw vinasse	5	10	15
pH	4.67 ± 0.31	7.4 ± 0.21	7.5 ± 0.12	7.45 ± 0.22
COD (g L^-1)	50 ± 1.65	8.72 ± 1.17	12.45 ± 1.03	22.12 ± 0.47
BOD₅ (g L^-1)	24 ± 0.12	1.3 ± 0.12	4.2 ± 0.28	9.89 ± 0.28
Conductivity (mS cm^-1)	12.2 ± 0.61	14.44 ± 0.25	16.7 ± 0.42	17.5 ± 0.11
TKN (g L^-1)	0.65 ± 0.1	0.67 ± 0.05	0.7 ± 0.08	0.74 ± 0.1
P_total (g L^-1)	0.019 ± 0.002	0.02 ± 0.01	0.07 ± 0.002	0.09 ± 0.01
Ca²⁺ (g L^-1)	1.6 ± 0.25	0.4 ± 0.11	0.88 ± 0.08	1 ± 0.05
Mg²⁺ (g L^-1)	0.98 ± 0.22	0.55 ± 0.12	0.61 ± 0.15	0.67 ± 0.05
K⁺ (g L^-1)	4.5 ± 0.11	3.1 ± 0.14	3.8 ± 0.1	4.3 ± 0.11
TS (g L^-1)	46.9 ± 1.24	22.6 ± 3.8	22.26 ± 2.64	28.28 ± 3.21
TFS (g L^-1)	12.5 ± 1.06	16 ± 2.4	15.9 ± 1.24	16.6 ± 2.14
TVS (g L^-1)	34.4 ± 0.18	6.5 ± 0.24	6.3 ± 2.27	6.3 ± 1.58
Color (UPt-Co)	7 329 ± 52.3	6 670 ± 43.7	7 113 ± 28.5	7 293 ± 17.6
Turbidity (UNT)	20 843 ± 286	17 843 ± 325	19 280 ± 186.5	20 268 ± 316

Response variable	OLR (kgCOD m^-3 d^-1)
Response variable	5	10	15
η(%)	82.6 ± 2.25	75.1 ± 1.88	55.8 ± 0.93
COD_Red.(g d^-1)	12.34 ± 0.86	23.84 ± 1.63	31.93 ± 1.82
YCH₄ (m³CH₄ kg CODr^-1)	0.314 ± 0.019	0.315 ± 0.014	0.316 ± 0.021

Control variable	OLR (kgCOD m^-3 d^-1)
Control variable	5	10	15
Effluent pH	7.4 ± 0.21	7.5 ± 0.12	7.45 ± 0.22
VFA (gHAc L^-1)	1 ± 0.85	5.1 ± 0.65	5.88 ± 0.92
Total Alk. (gCaCO₃ L^-1)	18.51 ± 1.49	21.61 ± 2.35	7.8 ± 1.52
VFA/Total Alk.	0.05	0.24	0.75

Variable	% COD red	% Color red	% Turbidity red
C(O₃)_g (mgO₃ L^-1)	-	X	X
pH	-	-	-
tc. (1-3) h	X	X	X

Parameter	Anaerobically digested effluent	Effluent after ozonation	% Reduction or increase
pH	7.5 ± 0.12	8 ± 0.1	-
COD (g L^-1)	12.45 ± 1.03	8.82 ± 1.21	-29.1
BOD₅ (g L^-1)	4.2 ± 0.12	4.67 ± 0.15	11.1
Conductivity (mS cm^-1)	16.7 ± 0.42	15 ± 0.34	-10.2
Ca²⁺ (g L^-1)	0.88 ± 0.08	0.86 ± 0.1	-2.3
Mg²⁺ (g L^-1)	0.61 ± 0.15	0.3 ± 0.16	-50.8
K⁺ (g L^-1)	3.8 ± 0.1	3.8 ± 0.11	0
Color (UPt-Co)	7 113 ± 28.5	451.16 ± 14.8	-93.7
Turbidity (UNT)	19 280 ± 186.5	149.13 ± 4.55	-99.2

[1] *To whom correspondence should be addressed

Brasil

Brasil

COMBINED TREATMENT OF VINASSE BY AN UPFLOW ANAEROBIC FILTER-REACTOR AND OZONATION PROCESS

Abstract