Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

The effects of air supply and nitrogen sources on Scenedesmus Quadricauda

Sayutti, Mohd Fadhli (2012) The effects of air supply and nitrogen sources on Scenedesmus Quadricauda. UNIVERSITI TEKNOLOGI PETRONAS, UNIVERSITI TEKNOLOGI PETRONAS. (Unpublished)

Download (1MB) | Preview


Microalgae have been investigated for the production of different biofuels and the feedstock are gaining interest in the present day due to their fast growth potential added with relatively high lipid, carbohydrate and nutrients contents. The purpose of this project is to perform a research to grow the commercial microalgae and to produce significant amount of lipid content from microalgae harvested as a viable alternative renewable energy. The commercial microalga chosen is Scenedesmus Quadricauda. The project also intended to study on the effects of air flowrate and nitrogen limitation on cell growth and lipid production. The microalga was cultivated in Afnor Medium with working volume of 5L in cylindrical photobioreactors. The temperature and pH value were in range of 22-25oC and 7-8 respectively for each photobioreactor. The first part of this project was conducted using different flowrates of air supply of range 1.0 to 6.0 L/min. The results show that, as the flowrate of air supply increased from 1.0 to 4.0 L/min, the biomass collected was also increased. However, as the flowrate of air supply was further increased to 5.0 and 6.0 L/min, the biomass collected was decreased. The second part of this project was conducted by controlling the total amount of nitrogen supply to the culture medium in decreasing range of 100% to 20% of nitrogen. The results show that the lipid yield was increased with decreasing amount of nitrogen whereas the biomass obtained was decreased. Besides, the lipid content based on the dry mass percentage was also increased with decreasing amount of nitrogen supplied.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Reactor Technology
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Sharifah Fahimah Saiyed Yoep
Date Deposited: 01 Apr 2013 11:34
Last Modified: 25 Jan 2017 09:40
URI: http://utpedia.utp.edu.my/id/eprint/6150

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...