Removal of Methylene Blue Using Chemically Modified Sugarcane Bagasse

Abstract

Methylene Blue (MB) has been found to be one of the most common dyes used in the industries. Adsorption process using Activated Carbon (AC) has been proven to be able to remove MB effectively but the treatment cost using the adsorbent is considered expensive due to its high energy cost. Sugarcane Bagasse (SGB) is an agricultural by-product and abundantly available material in many developing countries. FTIR and XRD were used to confirm the existence of ligno-cellulose content of SGB after experiencing various chemical treatments. SGB had 5 -40 folds higher MB removal capability than commercial activated carbon, depending on the pH of water medium and the type of SGB. SGB showed a much better performance in adsorbing MB in alkaline environment than in acidic environment. Langmuir adsorption isotherm model was able to estimate the removal capacity of non-chemical treated SGB (NSGB) and CaCl2 treated SGB (CSGB) at 84.7458 mg/g and 35.2113 mg/g respectively. An extremely higher MB removal capacity was found for BSGB due to the complexity of the surface site after chemical treatment. NaOH treated SGB (BSGB) with low lignin residue content was the most favourable adsorbent for MB adsorption.

Removal of Methylene Blue from Aqueous Solution by Activated Carbon from Aloe Vera Wastes

“…Kazembigi et al also presented that the uptake capacity for removal of MB by modified-RH was equal to 9.66 mg/g in an equilibrium time of 90 minutes (5). In another study, Utomo et al obtained the equilibrium time of MB removal system by modified sugarcane bagasse equal to 30 minutes (37). The pseudo-second-kinetic model was fitted by the results of the present study.…”

Penggunaan Karbon Aktif Dari Ampas Tebu Sebagai Adsorben Zat Warna Procion Merah Limbah Cair Industri Songket

“…Pewarna sintetik digunakan untuk menambah tampilan pada kain songket. Zat warna sintetis memiliki struktur kimia yang sulit terurai (Utomo et al, 2015), oleh karena itu apabila dibuang ke perairan menyebabkan karsinogenik, dermatis, alergika, iritasi kulit, umumnya memiliki LD50 sebesar 200-500 mg/L per berat badan mencit (Hariani, 2013). Purwaningrum et al, (2013) dalam penelitiannya mengatakan bahwa kandungan zat warna procion dalam limbah cair industri songket sebesar 1928,31 mg/L dan dari hasil analisis tehadap limbah industri songket yang ada di palembang menunjukkan kandungan COD antara 2960-4066 mg/L, sementara Said (2008) mendapati nilai COD limbah cair yang di hasilkan pada salah satu industri songket adalah sebesar 4993,8 mg/L sedangkan BOD antara 885-1275 mg/L (Hariani, 2013).…”

“…Bahan dasar karbon aktif adalah material organik dengan kandungan karbon yang tinggi, seperti ampas tebu yang memiliki kandungan selulosa lebih dari 30%.Ampas tebu merupakan limbah bagi pabrik gula yang dapat digunakan sebagai penjernih perairan yang kotor (Kusharharyati et al, 2012).Karbon aktif ampas tebu digunakan sebagai penyerap zat warna untuk Congo Red (Yoseva et al, 2015) zat warna metilen biru (Utomo et al, 2015), kation basa zat warna (Farahani et al, 2011). Penelitian ini bertujuan untuk (1) mendapatkan informasi mengenai karakteristik karbon aktif meliputi gugus fungsional menggunakan FTIR (Fourier Transform Infra Red) dan luas permukaan dengan menggunakan BET (Brunauer-Emmett-Teller), (2) menetukan kondisi optimum karbon aktif dengan dengan variabel waktu, berat, dan pH, dan (3) mengetahui karakteristik adsorpsi isothermal Langmuir yang terjadi dan efektifitas penyerapan karbon aktif dari ampas tebu terhadap zat warna procion merah.…”

Azo Dye Acid Blue 29: Biosorption and Phytotoxicity Test

“…The dye was characterized with an unstable pH, differently from Acid Blue 29. However Utomo et al (2015) performed an adsorption study with Methylene Blue using chemically modified sugarcane bagasse, showing that Langmuir adsorption was able to estimate the removal capacity.…”