Reduction of Nitrogen and Phosphorus Nutrient in Retention Effluent Pond from Power Plant by Adsorption and Filter Layer

Main Article Content

จารุมาศ ริ้วทอง
คณิตา ตังคณานุรักษ์
วัชรพงษ์ วาระรัมย์
นพวรรณ เสมวิมล

Abstract

Utilization of a voluminous industrial boiler effluent was the efficiency useful of water resources and mitigation of water pollution from eutrophication. The water quality analysis results of effluent from power plant retention pond revealed that it was rich of nitrogen nutrient (NH3-N 280.65 mgL-1, NO3- -N 292.96 mgL-1), orthophosphate 0.57 mgL-1 (higher than eutrophication critical value), high alkalinity (pH 10) and chlorophyll A 79.77 mgL-1. So it was not appropriate to reuse or discharge. This research was to investigate the adsorption and filter layers which low cost treatment and friendly to environment. From the batch experiments, it was found that a good efficiency removal of O-phosphate, ammonia and nitrate was obtained from lignite fly ash (LFA), waterworks sludge (WWS), hydrotalcide (HC) and golden apple shell ash extract (GASE). Moreover, WWS could be also decreased alkalinity. For column experiments, which was designed in 2 columns. Both of columns consist of 3 adsorption layers and 3 filter layers. From down to top layers were mixed WWS with coarse sand (1:20 by wt.), mixed stone with coarse sand, mixed HC with coarse sand (1:20 by wt.), mixed stone with coarse sand, mixed LFA with coarse sand (1:20 by wt.) for 1st column and mixed WWS with coarse sand (1:20 by wt.) for 2nd column and stone. After that, the effluent sample (ES) and the effluent sample mixed with GASE were treated by these 2 columns. All of the column treatment experiments revealed that the 2nd column gave the better removal of nitrate (>90%) and ammonia (99.63%) than the 1st column. But the 1st column gave the high phosphate removal at 100%. Finally, the expended scale adsorption and filtration layer was conducted to investigate the treatment efficiency of pH, N, P and chlorophyll A. The results showed that the treated water could be used for watering a tree. But if industries want to discharge, they must replicated treat. Therefore, this research could be applied to treat the high pH, N, P and chlorophyll A content effluent for reuse and discharge.

Article Details

Section
Research Articles

References

[1] Boney, A.D. 1975. Phytoplankton. London : Edward Arnold Ltd.

[2] Clark, J.W., Viessman, jr. W. and Hamner, M.J. 1977. Water Supply and Pollution control. Harper & Ron Publisher, New York. 857.

[3] Thitichaya Burirat Weerasak Suebsoh and Chanchainarong Songkasri. 2012. Removal of Nitrogen and Phosphorus from Septage by Using Golden Apple Shell Ash. Thesis. Mahasarakham University. (in Thai)

[4] Chanon Dangsepon. 2016. Synthesis of Zeolite Y from Rice Husk Ash and Forming by Sintering Method for Pollutants Treatment in Municipal Wastewater. Thesis. Kasetsart University. (in Thai)

[5] APHA, AWWA. and WEF. 2012. Standard Methods for the Examination of Water and Wastewater. 22nd ed. American Public Health Association, Washington, DC.

[6] Pollution Control Department. 2559. Standard of Water and Wastewater from Industrial Estate and industrial zones. ‘receive from’ http://www.pcd.go.th/info_
serv/reg_std_water04.html#s1 (in Thai)

[7] Pollution Control Department. 2537. Standard of Surface water. ‘receive from’ http://www.pcd.go.th/info_serv/reg_std_water05.html (in Thai)

[8] Narut Sahanavin and Jirawan Torit. 2012. Eutrophication. Journal of Faculty of Physical Education. Vol.15 (Supplement). Srinakharinwirot University. (in Thai)

[9] National Eutrophication Monitoring Programme Design, Chapter 2, 2-5.

[10] Worawut Matthayan, Sopa Visitsak and Khedari Joseph. 2010. Improvement of compressive strength for adobe block by using lime and palm oil ash. Proceedings of 49th Kasetsart University Annual Conference: Architecture and Engineering. ‘receive from’ http://rdi.ku.ac.th/kasetresearch54/Group Economic/43-Worawut_mat/template.html. (in Thai)

[11] Graham, V.J, R. Tavernler and D.H. Boalch. 1960. Multilingual Vocabulary of Soil Science. Land & Water Development Division, Food and Agriculture Organization of the United Nations.

[12] Chadaporn Chanchamlar. 2016. Simple Filter Tank for Treatment of Basic Dyes in Synthetic Silk Dyeing Wastewater from Baan Pa Deang. Thesis. Kasetsart University. (in Thai)