Date

5-2013

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Eliseo V. Ana Jr.

Committee Member

Perlie P. Velasco Joseph M. Caburnay

Abstract

The UPLB Sewage Treatment Plant has not been operated since 2002, resulting to the discharge of untreated wastewater from UPLB to the Molawin Creek. To remedy this, a committee has been formed with the goal of rehabilitating the STP. The study aims to evaluate the rehabilitation of the STP. The evaluation is performed by determining the wastewater parameters and the projected wastewater flowrates for 5, 10, 20 and 30 years and then checking the capacity and treatment adequacy of the existing STP for the given time frame. Analysis of wastewater samples (collected5using grab sampling) shows that the wastewater constituted of 395mg/L of COD and 100mg/L of BOD₅ both of which exceeded DAO 35 standards for Class C inland water, which is 100 and 50 mg/L, respectively. The initial flowrate of UPLB was estimated to be 1,370m³/d by the STP. Computations of the STP capacity (using settling tank and trickling filter design parameters) and treatment (using typical values for removal efficiency of sedimentation and NRC equations for trickling filter) show that with the given wastewater parameters and projected flowrates, the STP can operate satisfactorily for ten years making the rehabilitation viable for the given duration. Should it be desired to operate the STP for 30 years or more, new construction is required.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2013 E63 C37

Document Type

Thesis

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