Malaysian Journal of Analytical Sciences Vol 21 No 1 (2017): 182 - 187

DOI: http://dx.doi.org/10.17576/mjas-2017-2101-21

 

 

 

TREATMENT OF METHYLENE BLUE IN WASTEWATER USING Scirpus grossus

 

(Rawatan Metilena Biru dalam Air Sisa Menggunakan Scirpus grossus)

 

Enas Abdulqader Saeed Almaamary¹, Siti Rozaimah Sheikh Abdullah¹*, Hassimi Abu Hasan¹, Reehan Adne Ab. Rahim¹, Mushrifah Idris²

 

¹Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment

²Tasik Chini Research Center, Faculty of Science and Technology

Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia

 

*Corresponding author: rozaimah@ukm.edu.my

 

 

Received: 21 October 2015; Accepted: 14 June 2016

 

 

Abstract

Phytoremediation is an emerging technology that should be considered for the remediation of contaminated sites because of its aesthetic advantages and long-term applicability. The possibility of Scirpus grossus for degradation of a basic dye, methylene blue (MB) was investigated. The effect of the operational parameter of different dye concentrations (0, 200, 400, 600, 800 and 1000 mg/L) was determined, and the water quality parameters namely pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD) and total organic carbon (TOC) were monitored. The UV-Visible absorption confirmed the degradation of MB within 72 days. The removal efficiency of methylene blue dye from synthetic wastewater was determined to be in the range of 86 – 38% for all treatments at different concentrations (200 – 1000 mg/L) respectively. Furthermore, the highest removals for BOD, COD in 400 mg/L and TOC in 200 mg/L MB were 69, 58 and 63% respectively.

 

Keywords:  phytoremediation, Scirpus grossus, methylene blue, decolourisation, water quality

 

Abstrak

Fitopemulihan merupakan teknologi baru yang perlu dipertimbangkan untuk pemulihan tapak tercemar kerana kelebihan estetik dan kebolehgunaan bagi jangka panjang. Kemungkinan Scirpus grossus untuk degradasi pewarna asas, metilena biru (MB) telah dikaji. Kesan parameter operasiiaitu kepekatan pewarna yang berbeza (0, 200, 400, 600, 800 dan 1000 mg/L) ditentukan dan parameter kualiti air iaitu pH, oksigen terlarut (DO), permintaan oksigen biokimia (BOD), permintaan oksigen kimia (COD) dan jumlah karbon organic (TOC) dipantau. Penyerapan UV cahaya nampak mengesahkan degradasi MB dalam masa 72 hari. Kecekapan penyingkiran pewarna metilena biru daripada air sisa sintetik telah ditentukan dalam lingkungan 38 – 86% untuk semua rawatan dalam kepekatan yang berbeza (200 – 1000 mg/L) masing-masing. Tambahan pula, penyingkiran tertinggi bagi BOD, COD dalam 400 mg/L dan TOC dalam 200 mg/L MB masing-masing adalah 69, 58 dan 63%.

 

Kata kunci:  pemulihan-fito, Scirpus grossus, metilena biru, penyahwarnaan warna, kualiti air

 

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