Effectiveness of Microwave Drying for Shrimp Aquaculture Sludge

Document Type : Original Article

Authors

1 Faculty of Engineering and the Built Environment, SEGi University

2 . Faculty of Engineering and the Built Environment, SEGi University

3 Jil Engineering Consult.Sdn Bhd

4 SIRIM Berhad

5 Faculty of Engineering, Universiti Putra Malaysia

6 Faculty of Engineering, Universiti Selangor

7 School of Engineering and Physical Sciences, Heriot Watt University Malaysia Campus

8 Fisheries Research Institute

10.52293/WES.1.3.713

Abstract

The disposal of the shrimp aquaculture sludge requires large area and high amount of disposal cost. The improper treatment and disposal can cause soil and water pollution. Sludge drying is an effective solution to reduce the weight of sludge and eventually reduces the disposal cost. This study was aimed to assess the effectiveness of thermal treatment on drying shrimp sludge at different power and time of 270W, 450 W 630W and 60s to 390s, respectively. Heavy metals concentrations and chemical compounds were also determined. Results reveal that the best drying rate recorded were at power and time of 630 W and 240s, respectively. Fourier transform infrared spectroscopy spectrum (FTIR) shows that the main groups presence are aliphatic chains with double bonds, as well as carbonyl, hydroxyl and N–H groups in organic compounds. Sludge drying has proven to be effective in reducing moisture content and organic matters for shrimp aquaculture sludge. It could be considered as one of the alternative methods to handle sludge.

Keywords

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Water and Environmental Sustainability
Volume 1, Issue 3 - Serial Number 3
September 2021
Pages 7-13

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History

  • Receive Date: 07 February 2021
  • Revise Date: 23 February 2021
  • Accept Date: 15 March 2021

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