Total nitrogen and total phosphorus removal from brackish aquaculture wastewater using effective microorganism

K. A. Mohamad, S. Y. Mohd, R. S. Sarah, H. Z. Mohd, A. Rasyidah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Aquaculture is one of dominant food based industry in the world with 8.3% annual growth rate and its development had led to adverse effect on the environment. High nutrient production in form of nitrogenous compound and phosphorus contributed to environmental deterioration such as eutrophication and toxicity to the industry. Usage of Effective Microorganism (EM), one of the biological approaches to remove Total Nitrogen (TN) and Total Phosphorus (TP) in aquaculture pond was proposed. Samples were obtained from the Sea Bass intensive brackish aquaculture wastewater (AW) from fish farm at Juru, Penang and the parameters used to measure the removal of nitrogenous compounds include, pH, EM dosage, shaking, contact time and optimum variable conditions. From the study, for effective contact time, day 6 is the optimum contact time for both TN and TP with 99.74% and 62.78% removal respectively while in terms of optimum pH, the highest TN removal was at pH 7 with 66.89 %. The optimum dosage of EM is 1.5 ml with ratio 1:166 for 81.5 % TN removal was also found appropriate during the experiment. At varied optimum conditions of EM, the removal efficiency of TN and TP were 81.53% and 38.94% respectively while the removal mechanism of TN was highly dependent on the decomposition rate of specific bacteria such as Nitrobacter bacteria, Yeast and Bacillus Subtilis sp. The study has established the efficacy of EM's ability to treat excessive nutrient of TN and TP from AW.

Original languageEnglish
Title of host publication3rd Electronic and Green Materials International Conference 2017, EGM 2017
EditorsMohd Fathullah Ghazli, Rizalafande Che Ismail, Mohd. Mustafa Albakri Abdullah, Muhammad Mahyiddin Ramli, Shayfull Zamree Abd Rahim, Siti Salwa Mat Isa, Mohd Nasir Mat Saad
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415652
DOIs
Publication statusPublished - 26 Sep 2017
Event3rd Electronic and Green Materials International Conference 2017, EGM 2017 - Aonang Krabi, Thailand
Duration: 29 Apr 201730 Apr 2017

Publication series

NameAIP Conference Proceedings
Volume1885
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other3rd Electronic and Green Materials International Conference 2017, EGM 2017
CountryThailand
CityAonang Krabi
Period29/04/1730/04/17

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Mohamad, K. A., Mohd, S. Y., Sarah, R. S., Mohd, H. Z., & Rasyidah, A. (2017). Total nitrogen and total phosphorus removal from brackish aquaculture wastewater using effective microorganism. In M. F. Ghazli, R. C. Ismail, M. M. A. Abdullah, M. M. Ramli, S. Z. A. Rahim, S. S. M. Isa, & M. N. M. Saad (Eds.), 3rd Electronic and Green Materials International Conference 2017, EGM 2017 [020127] (AIP Conference Proceedings; Vol. 1885). American Institute of Physics Inc.. https://doi.org/10.1063/1.5002321