Efficiency of activated Rice Husk Ash (RHA) as adsorption material in the water supply treatment of UPLB
Date
6-2015
Degree
Bachelor of Science in Civil Engineering
College
College of Engineering and Agro-Industrial Technology (CEAT)
Adviser/Committee Chair
Perlie P. Velasco
Co-adviser
Michael Vincent O Laurio
Abstract
Water supply of the University of the Philippines Los Baños (UPLB) comes from the groundwater and undergoes sedimentation and disinfection before distribution. The water supply system supplies the offices, dormitories, and facilities inside the campus. According to Corona (2014), it contains unsatisfactory amount of microorganisms and fails to meet the standards for drinking water. Water samples from the water supply of UPLB were subjected to adsorption as additional treatment process in which activated rice husk ash (ARHA), a substitute for activated carbon, was used as adsorbent. Rice Husk Ash was activated using Nitric acid and burned at 800⁰C using a furnace. Kinetic experiment was conducted to observe the adsorption process which showed that the equilibrium time is 24 hrs. Adsorption kinetics was used to describe the adsorption phenomena and it was found out that the order of reaction (n) is of the first order with adsorption constant (k) equal to 0.0056. Result showed that ARHA can effectively adsorb microorganisms in the water up to 96.25%. For the design of a continuous water flow system with a flowrate of 200 gpm, a 144000-gal. or 545.10-m3 adsorption tank, 10000-gal or 68.2-m3 sedimentation basin, and 7000-gal or 26.5-m3 chlorination tank was proposed to be added to the waterworks system of UPLB.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Angeles, Christine May DJ, "Efficiency of activated Rice Husk Ash (RHA) as adsorption material in the water supply treatment of UPLB" (2015). Undergraduate Theses. 4072.
https://www.ukdr.uplb.edu.ph/etd-undergrad/4072
Document Type
Thesis