Treatment of industrial wastewater using constructed wetland : removal of orthophosphate and ammonia nitrogen

Anabil, Ubil (2008) Treatment of industrial wastewater using constructed wetland : removal of orthophosphate and ammonia nitrogen. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang.


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Industrial wastewater is one of the major concerns of the environment problems. As the wastewater is found to be highly contaminated, it could not be discharged directly into the environment. Therefore, wastewater treatment is essential to minimize the effect of the contaminants to nature. Based on previous studies, constructed wetland system (CWS) was proved to have high efficiency in treating industrial wastewater with low operating and maintenance cost. The industrial wastewater studied was Palm Oil Mill Effluent (POME) which was taken from Lepar Hilir Palm Oil Mill. In this research, lab scale of free water surface constructed wetlands was designed with the water lettuce (Pistia Stratiotes) as the wetland plant. The parameter studied including ammonia nitrogen (NH 3-N) and orthophosphate (Po 4 3- ). In order to investigate the effectiveness of the systems, three variables were studied which were the number of plant used (5, 10, 15), the wastewater concentration (87.5%, 75%, 62.5%) and the physical appearance of the plants during the treatment. The results showed that NH3-N was removed at high removal efficiency meanwhile Po 4 3- removal appeared at low removal efficiency. Both NH 3-N and Po 4 3- removal showed better results in the CWS with 15 plants. In term of the different POME concentration variable, the CWS with 87.5% showed the highest removal efficiency for NH -N and 75% POME concentration showed the highest removal efficiency for Po 3 4 3- . For plant growth observation, at the end of the treatment, many of the water lettuces were wilted. As conclusion, this study showed that constructed wetland can remove contaminant in POME.

Item Type: Undergraduates Project Papers
Additional Information: For FULL TEXT, email Enclosed with full name, institution, country, position (student, lecturer, researcher or others) and the purpose of obtaining full text thesis.
Uncontrolled Keywords: Constructed wetlands , Land treatment of waste water , Water -- Biological treatment
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Rosfadilla Mohamad Zainun
Date Deposited: 29 Apr 2010 01:47
Last Modified: 03 Mar 2015 06:04
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