Stabilization Of Thickened-Activated Sludge Through The Anoxic-Aerobic Digestion Process

Tan, Ming Ying (2002) Stabilization Of Thickened-Activated Sludge Through The Anoxic-Aerobic Digestion Process. Masters thesis, Universiti Putra Malaysia.

[img] PDF


Aerobic digestion is widely used to treat waste-activated sludge and thickened sludge from wastewater treatment plant due to its shorter retention time and achieving the same efficiency in solids volume reduction compared to anaerobic digestion. However, the supernatant and filtrate from the aerobic digestion system contain high concentration of suspended solids. The nitrogen which had been embedded in sludge is solubilized to form ammonical and nitric nitrogen which in tum transferred to the liquor and cause the increase of nitrogen loading in sewage treatment plant. In this study, anoxic-aerobic digestion is applied to remove both the mixed-liquor volatile suspended solids (ML VSS) and soluble nitrogen simultaneously. The objectives of the study are to investigate and evaluate the removal efficiency of both ML VSS and soluble nitrogen by anoxic-aerobic digestion and compared to the aerobic control digesters, with and without lime control. By applying anoxic-aerobic digestion, a comparable of ML VSS reduction was gained to aerobic digestion. 66.12% and 63.00% of MLVSS destruction was found in both anoxic-aerobic digesters, with and without methanol addition respectively.

Item Type:Thesis (Masters)
Subject:Sludge bulking
Chairman Supervisor:Fakhru'l Razi Ahmadun, PhD
Call Number:FK 2002 92
Faculty or Institute:Faculty of Engineering
ID Code:12139
Deposited By: Mohd Nezeri Mohamad
Deposited On:15 Jul 2011 07:44
Last Modified:15 Jul 2011 07:44

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 15 Jul 2011 07:44.

View statistics for "Stabilization Of Thickened-Activated Sludge Through The Anoxic-Aerobic Digestion Process "

Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.