Open AccessThe Biokinetic Parameters for the Removal of the Biochemical Demand of Oxygen and Coliforms in the Domestic Wastewater Treatment Plant of Pisco
Author(s) -
Pedro Córdova Mendoza,
Teresa Oriele Barrios Mendoza,
Ramiro Zuzunaga-Morales,
Isis Cristel Córdova Barrios,
José Lévano-Moran,
Emily Zuzunaga-Concha
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/1009/1/012005
Subject(s) - biochemical oxygen demand , wastewater , chemical oxygen demand , oxygen , pulp and paper industry , sewage treatment , environmental chemistry , chemistry , environmental science , environmental engineering , engineering , organic chemistry
The objective of the research was to determine the biokinetic parameters that significantly influence the removal of the biochemical oxygen demand and coliforms in the domestic wastewater treatment plant. Material and methods, primary documentation was used, using the analytical-explanatory method, applied research. Results: The technical standard OS.090, for wastewater treatment plants establishes the maximum permissible limits and the average values of the oxidation lagoon were obtained, with a pH between 8-9, temperature 30.9 ° C, it was evidenced that the oxygen utilization rate values (VUO), for 5h (VUO = -0.1301), 15h (VUO = -0.1257), 35 h (VUO = -0.1187), 60h (VUO = -0.0958) and 80h (VUO = - 0.0885). Discussion: With the consumption of dissolved oxygen, the microbial ecological balance was reached on the third day in the reactor, which allowed obtaining the biokinetic parameters with a K = 0.0097 L/mg * d, Ks = 149.132 mg/l, qmax = 0.0698 h -1 , a = 0.041 kgO 2 / DBOr and b = 0.0365. Conclusion: The complete mixture of the removal of BOD 5 is in a range of 85-95, the tests in the sample at 80 hours reached for the BOD5 of 27 mg/l.