Study the effects of different media derived from palm shell for marine shrimp discharge filtration

Conference proceedings article

Authors/Editors

SIVAWAN PHOOLPHUNDH

Strategic Research Themes

Sustainable Energy & Environment (Strategic Research Themes)

Publication Details

Author list: Kruatong N., Vinitnantharat S., Phoolphundh S.

Publisher: IOP Publishing

Publication year: 2020

Volume number: 463

Issue number: 1

ISSN: 1755-1307

eISSN: 1755-1315

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083456413&doi=10.1088%2f1755-1315%2f463%2f1%2f012172&partnerID=40&md5=163d24e8d43f9c8b4df27db36375c990

Languages: English-Great Britain (EN-GB)

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Abstract

Marine shrimp culture is important in agricultural sector which generates income for farmers. If marine shrimp culture is not proper management, it can cause environmental impacts on coastal ecosystem and water quality. Some areas use water spraying, washing and then flushing the pond bottom after shrimp harvesting and discharge water to receiving water which high nutrient and suspended solids exceeded the effluent standard. This research studied the marine shrimp discharge filtration using different media derived from palm shell. Three different media types for wastewater filtration were palm shell biochar (B), raw palm shell (R) and palm shell mixed with palm shell biochar (volume ratio of 1:1) (M). The simulated wastewater was daily fed via the top of the filter in semi-continuous mode (8 hours/day) at the hydraulic retention time of 4 h. During the 54 days of operation, water sample was collected to analyse SS, BOD, NH3-N, TP and FCB. At day 54th of operation, the average suspended solids (SS) removal efficiencies of B, R and M were 84, 82 and 84%, respectively, and the average total phosphorus (TP) removal efficiencies were 33, 28 and 30%, respectively. All filters could remove ammonia on the first 30 days of operation in which the concentration met the standard requirement of <1.1 mg/L. The average influent biochemical oxygen demand (BOD) concentration of 27 mg/L can be reduced to less than 20 mg/L after 3 days of operation in all filters. In addition, all filters were able to reduce the fecal coliform bacteria (FCB) to a lower concentration. Thus, these three different media are environmentally friendly material that can be used for effluent water filtration in the small-scale shrimp farm. © 2020 Institute of Physics Publishing. All rights reserved.

Keywords

Palm shell, shrimp farm