Performance evaluation of fluidized sand filter with different grades of river sand

Date

5-2016

Degree

Bachelor of Science in Agricultural and Biosystems Engineering

Major Course

Major in Land & Water Resources Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Aurelio A. Delos Reyes

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

The performance of the fabricated fluidized sand filter with three different grades of sand from Bay, Laguna (i.e. 0.106-0.425 mm, 0.60-0.85 mm, and 1.19-2.00 mm ) was evaluated. The original sand used is considered fine (D10 = 0.15 mm) and has low uniformity coefficient (2.36). The media is favorable for colonization of nitrifying bacteria since it has high specific surface area (SSA = 391.30 cm ^ -01). Among the three grades, the 1.19-2.00 mm sample required the highest hydraulic flux in reaching a specific fluidization percentage. Hydraulic fluxes increased with the increase in particle size and fluidization percentage. At 1 mg/L total ammonia nitrogen (TAN) loading concentration, the 1.19-2.00 mm sand grade was the most efficient in removing TAN, while the 0.106-0.425 mm sand grade was the most efficient in removing nitrite-N (NO2-N). As for the conversion rates, the 1.19-2.00 mm sample yielded the largest volumetric and areal TAN and NO2-N removal rates. The relationship between the loading and removal rates of TAN and NO2-N in all the sand grades followed the Monod profile.

Language

English

Location

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

Call Number

LG 993.5 2016 A2 /E83

Document Type

Thesis

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