International Journal of Modern Biological Research
ISSN: 2053-180X
Vol. 4(6), pp. 46-53, December 2016
doi.org/10.33500/ijmbr.2016.4.006



Design of a horizontal bioreactor of continuous motion for the stabilisation of primary residual sludge

Melendez Estrada Jorge⃰, Legorreta-Dueñas Nancy Miredy and Mario Ulloa Ramirez

Instituto Politécnico Nacional, Escuela Superior de Ingeniería y Arquitectura U-Zacatenco. Edificio de Posgrado e Investigación. Unidad Profesional Adolfo López Mateos s/n. Colonia Lindavista Zacatenco. México D.F. C.P. 07738.

*To whom correspondence should be addressed. E-mail: jmelende31@hotmail.com.

Received 25 August, 2016; Received in revised form 11 November, 2016; Accepted 14 November, 2016.

Abstract


Keywords:
Primary sludge, Horizontal bioreactor, Wastewater sludge treatment, Aerobic bioreactor.


Primary sludge (PS) is the principal residue that is generated by wastewater treatment. In all wastewater treatment, this by-product is removed from the treatment train. The sand, rubbish and coarse organic matter are deposited in pipes and then deteriorate the treatment equipment. This biosolid is obtained after one or two days of sedimentation by the water that enters the wastewater treatment plant (WTP). For its microbiological, chemical and physical environment, the PS generates an imminent problem. The aim of the present study was to design and build a horizontal bioreactor of continuous motion (HBCM) for reducing the amount of organic matter that is present in the PS as volatile suspended solids (VSS). In addition, this research studied the behaviour of parameters, such as chemical organic demand (COD), humidity, among others. Three mud samples were taken, the first presents a COD equal to 216 mg/l; the last two have CODs of 1161 and 1114 mg/l, respectively. The maximum percentage of organic matter removal that was reached by this bioreactor was 93.38%.

©2016 BluePen Journals Ltd.







© 2013-2021 - BluePen Journals | Terms | Privacy policy | Advert | Help |