การประเมินหัวจ่ายอากาศแบบดรายเดนเปรียบเทียบกับหัวจ่ายอากาศแบบละเอียดทั่วไป (EVALUATION OF DRYDEN AIR DIFFUSER COMPARING WITH CONVENTIONAL FINE BUBBLE DIFFUSERS)

Authors

  • ศศิธร ระหงษ์ Srinakharinwirot University
  • ชิเกตากะ วาดะ บริษัท ไทยอิเสคคิว จำกัด
  • คณิตา ตังคณานุรักษ์ คณะสิ่งแวดล้อม มหาวิทยาลัยเกษตรศาสตร์ วิทยาเขตบางเขน

Keywords:

Oxygen transfer rate, Air diffuser, Fine bubble, Membrane

Abstract

            Oxygen transfer rate (OTR) and pressure loss of Dryden air diffuser, which is made of polypropylene cloth, were measured and compared with conventional fine bubble diffusers made of polyurethane (PU) and high-density polyethylene (HDPE) membrane. OTR of Dryden diffuser were 12.3% at the air flow rate of 50 L/min. OTR of AEROSTRIP diffuser was 9.8%, Membrane diffuser was 8.1%, and A large hole diffuser was 3.3% at the similar air flow rate. However, the pressure loss of Dryden diffuser was higher than conventional membrane diffusers.

Downloads

Download data is not yet available.

References

[1] Ramalho, R.S. (1977). Introduction to Wastewater Treatment Process. 1st ed. New York: Academic Press.
[2] Stenstrom, M.K. and D. Rosso. (2010). Aeration. Retrieved December 28, 2017, from http://www.seas.ucla.edu/stenstro/Aeration.pdf.
[3] Metcalf & Eddy, G. Tchobanoglous, F.L. Burton, et al. (2014). Wastewater Engineering: Treatment and Resource Recovery. 5th ed. New York: McGraw-Hill.
[4] Von Sperling, M. and de Lemos Chernicharo, C.A. (2005). Biological Wastewater Treatment in Warm Climate Regions. 1st ed. London: IWA publishing.
[5] American Society of Civil Engineers. (2007). Measurement of oxygen transfer in clean water ASCE standard, ASCE/EWRI 2-06. Virginia: Reston, Va : American Society of Civil Engineers.
[6] Dryden Aqua Ltd. (2017). Air Diffusers. Retrieved December 28, 2017, from https://www.drydenaqua.com/water-treatment/products/air-diffusers.
[7] AQUACONSULT Anlagenbau Ges.m.b.H. (n.d.) Products - product range - Products - Aerostrip by Aquaconsult. Retrieved December 28, 2017, from http://www.aerostrip.at/english/Products/product%20range.html.
[8] Kunerus, M. (2018). Fine Bubble Membrane Diffusers. Retrieved December 28, 2017, from http://hydriawater.se/products/fine-bubble-membrane-diffusers/.
[9] United States Environmental Protection Agency. (1985). Summary Report, Fine Pore (Fine bubble) Aeration Systems, Technology Transfer EPA/625/8-85/010. 8.
[10] Seiji Homma. (n.d.) Survey on the Efficiency Improvement of Diffusers, Annual report of Japan Sewage Bureau (written in Japanese). Retrieved December 28, 2017, from file:///D:/Diffuser%20&%20Other%20aerator/REPORT47.pdf.
[11] Sewage Testing Methods. (1997). Sewerage and Sewage Purification Department, City Bureau, Ministry of Construction / Water Supply and Environmental Sanitation Department, Environmental Health Bureau, Ministry of Health and Welfare. Tokyo: Japan Sewage Works Association.
[12] TAIKO KIKAI INDUSTRIES CO., LTD. (2010). TSS_TSA_SSR_M.pdf. Retrieved December 28, 2017, from https://www.taiko-kk.com/pdf/TSS_TSA_SSR_M.pdf.
[13] Rosso, D and Stenstrom, M.K. (2005, October). Comparative Economic Analysis of the Impacts of Mean Cell Retention Time and Denitrification on Aeration Systems. Water Research. 39(16): 3773-3780

Downloads

Published

2020-07-01

How to Cite

ระหงษ์ ศ. ., วาดะ ช. ., & ตังคณานุรักษ์ ค. . (2020). การประเมินหัวจ่ายอากาศแบบดรายเดนเปรียบเทียบกับหัวจ่ายอากาศแบบละเอียดทั่วไป (EVALUATION OF DRYDEN AIR DIFFUSER COMPARING WITH CONVENTIONAL FINE BUBBLE DIFFUSERS). Srinakharinwirot University Journal of Sciences and Technology, 12(23, January-June), 161–171. Retrieved from https://ph02.tci-thaijo.org/index.php/swujournal/article/view/241321

Issue

Vol. 12 No. 23, January-June (2020): Srinakharinwirot University (Journal of Science and Technology)

Section

บทความวิจัย

License

Srinakharinwirot University Journal of Sciences and Technology is licensed Under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC-BY-NC-ND 4.0) License, Unless Otherwise Stated. Please Read Journal Policies Page for More Information on Open Access, Copyright and Permissions.