TY - JOUR
T1 - Swine Wastewater Treatment for Small Farms by a New Anaerobic-Aerobic Biofiltration Technology
AU - Escalante-Estrada, V. E.
AU - Garzón-Zúñiga, M. A.
AU - Valle-Cervantes, S.
AU - Páez-Lerma, J. B.
N1 - Publisher Copyright:
© 2019, Springer Nature Switzerland AG.
PY - 2019/7/1
Y1 - 2019/7/1
N2 - Effluents form the swine livestock industry contain a high concentration of pollutants and require complex treatment systems. The most recurrent form to treat Swine wastewater is by a conventional anaerobic–aerobic treatment. For example, an up-flow anaerobic blanket sludge reactor followed by an activated sludge reactor. However, in many countries, a high percentage of producers are small or medium-sized farms that can afford neither complex treatment systems nor specialized operations. The present study assessed the performance of a novel and different combinations of treatment processes, based on changing the anaerobic systems that require a specialized operation for one very simple to operate for farm owners. The assessed system is composed by a septic tank in combination with an up-flow anaerobic filter packed with volcanic rocks and an aerobic biofilter packed with waste wood chips. The effect of the hydraulic residence time and the volumetric organic loading in the septic tank and up-flow anaerobic filter and the effect of surface hydraulic loading in the aerobic biofilter were also evaluated. The system efficiently removed chemical oxygen demand (86–93%), total suspended solids (91–97%), volatile suspended solids (86–97%), and ammoniacal nitrogen (86–87%), showing a constant removal efficiency under a VOL of between 5 and 14.6 kg COD m−3 d−1in the up-flow anaerobic filter. The advantages of this system are that the packing materials can be available in rural zones and are sustainable; the whole system is cost-effective and easy to handle; thus, farmers can operate and maintain it with their own means.
AB - Effluents form the swine livestock industry contain a high concentration of pollutants and require complex treatment systems. The most recurrent form to treat Swine wastewater is by a conventional anaerobic–aerobic treatment. For example, an up-flow anaerobic blanket sludge reactor followed by an activated sludge reactor. However, in many countries, a high percentage of producers are small or medium-sized farms that can afford neither complex treatment systems nor specialized operations. The present study assessed the performance of a novel and different combinations of treatment processes, based on changing the anaerobic systems that require a specialized operation for one very simple to operate for farm owners. The assessed system is composed by a septic tank in combination with an up-flow anaerobic filter packed with volcanic rocks and an aerobic biofilter packed with waste wood chips. The effect of the hydraulic residence time and the volumetric organic loading in the septic tank and up-flow anaerobic filter and the effect of surface hydraulic loading in the aerobic biofilter were also evaluated. The system efficiently removed chemical oxygen demand (86–93%), total suspended solids (91–97%), volatile suspended solids (86–97%), and ammoniacal nitrogen (86–87%), showing a constant removal efficiency under a VOL of between 5 and 14.6 kg COD m−3 d−1in the up-flow anaerobic filter. The advantages of this system are that the packing materials can be available in rural zones and are sustainable; the whole system is cost-effective and easy to handle; thus, farmers can operate and maintain it with their own means.
KW - Small swine farm wastewater
KW - Trickling biofilter over organic bed
KW - Up-flow anaerobic filter
KW - Volcanic rock filtration media
KW - Wood chips filtration media
UR - http://www.scopus.com/inward/record.url?scp=85067604260&partnerID=8YFLogxK
U2 - 10.1007/s11270-019-4200-3
DO - 10.1007/s11270-019-4200-3
M3 - Artículo
AN - SCOPUS:85067604260
SN - 0049-6979
VL - 230
JO - Water, Air, and Soil Pollution
JF - Water, Air, and Soil Pollution
IS - 7
M1 - 145
ER -