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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Reka Lingkungan
Dyah Marganingrum
Badan Riset dan Inovasi Nasional
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

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Utilization of Bottom Ash as an Adsorbent for Color and COD Removal for Textile Industry Waste Pricilla Jihan Fadilla; Mohamad Rangga Sururi; Dyah Marganingrum; Mila Dirgawati
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 1 (2022): March 2022
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (390.279 KB) | DOI: 10.14710/presipitasi.v19i1.78-88

Abstract

This study investigates the use of bottom ash as an adsorbent with and without chemical activation treatment. This study also determines the effect of pH and stirring speed on the efficiency of bottom ash in the adsorption of color and COD. Bottom ash was ground and sieved by 100 mesh sieves and was activated by hydrochloric acid 2%. The experiments were conducted at pH variations of 6, 8, 10; contact time variations of 30, 60, and 90 minutes; and stirring speeds of 30 and 60 rpm. The most effective adsorption by non-activated adsorbents occurred at the combination of pH six and stirring speed of 60 rpm with the removal efficiency for color 66.30% at a contact time of 90 minutes and for COD 31.55% at a contact time of 30 minutes. While for activated adsorbent, the highest removal for color (77.44%) and COD removal (40.54%) were at pH 6, stirring speed 30 rpm, contact time 30 minutes. The bottom ash was potentially used as an adsorbent for treating wastewater containing high concentrations of color and COD.
EFISIENSI PENGGUNAAN MATERIAL PRESERVASI MIKROORGANISME (MPMO) DALAM PENYISIHAN TIMBAL (PB) DAN KROMIUM (CR) PADA LIMBAH CAIR INDUSTRI TEKSTIL MENGGUNAKAN REAKTOR BATCH Junita Fachriea Gani; Dyah Asri Handayani Taroepratjeka; Dyah Marganingrum
Jurnal Reka Lingkungan Vol 11, No 2 (2023)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekalingkungan.v11i2.130-139

Abstract

AbstrakKegiatan industri tekstil selain menghasilkan produk tentunya menghasilkan limbah cair. Limbah cair ini memiliki kontaminan timbal (Pb) dan kromium (Cr) karena proses pewarnaan memerlukan logam berat dalam mengikat warna pada serat kain agar tidak mudah luntur. Pengolahan biologi yang berpotensi dalam penyisihan parameter tersebut yaitu material preservasi mikroorganisme (MPMO) karena mengandung bentonit dan Bacillus licheniformis. Bentonit memiliki kemampuan untuk mengadsorpsi karena mengandung kation Heksadesil Trimetil Ammonium Bromida (HDTMA+) sedangkan Bacillus licheniformis memiliki enzim Chromate Reductase (ChrR) dan Pbr Operon yang dapat menyisihkan Pb dan Cr dengan cara bioremediasi oleh bakteri. Penelitian ini bertujuan untuk menentukan efisiensi penyisihan Pb dan Cr oleh MPMO. Pengolahan air limbah tekstil PT X dilakukan pada skala laboratorium dengan 3 variasi reaktor batch selama 16 hari secara aerob, pH 6-7 dan tepung tapioka sebagai nutrisi utama. Sebelum masuk pada tahap pengolahan dilakukan persiapan bakteri yang terjadi selama 10 hari, Volatile Suspended Solid (VSS) digunakan sebagai indikator kesiapan bakteri dan pH sebagai kontrol pertumbuhan bakteri. Metode yang digunakan untuk pengukuran Pb dan Cr yaitu Spektrofotometri Serapan Atom (SSA) secara nyala. Hasil pengukuran karakteristik limbah cair industri tekstil PT.X konsentrasi Pb 22,2428 mg/L dan Cr 6,8575 mg/L. Penggunaan MPMO dapat menyisihkan konsentrasi Pb 84,21 hingga 86,15% dan Cr 86,48 hingga 88,95% dari limbah cair industri tekstil.Kata kunci: material preservasi mikroogranisme (MPMO), timbal, kromium, industri tekstil.AbstractTextile industry activities in addition to producing products of course produce liquid waste. This liquid waste has lead (Pb) and chromium (Cr) because the coloring process requires heavy metals to bind the color to the fabric fibers and then produce residual dye. Biological treatment is possible in the removal of these parameters of microorganism preservation material (MOPM) because it contains bentonite and Bacillus licheniformis. Bentonite has the ability to adsorb because it contains the cation Hexadesil Trimethyl Ammonium Bromide (HDTMA-Br) while Bacillus licheniformis has the enzyme Chromate Reductase (ChrR) and Pbr Operon which can find Pb and Cr by bioremediation by bacteria. This study aims to determine the efficiency of Pb and Cr by MPMO. PT.X textile wastewater treatment was carried out on a laboratory scale in 3 variations of batch reactors for 16 days by aerobic, pH 6-7 and tapioca flour as the main nutrient. Before entering the processing stage, bacteria were prepared for 10 days, Volatile Suspended Solid (VSS) as an indicator of bacterial readiness and pH as a control of bacterial growth. The methods used to measure Pb and Cr are Atomic Absorption Spectrophotometry (AAS) by flame. The results of the textile industry wastewater characteristics PT.X concentration of Pb 22,2428 mg/L and Cr 6,8575 mg/L. The use of MOPM can concentrate Pb 84.21 to 86.15% and Cr 86,48 up to 88.95% from textile industry wastewater.Keywords: microorganism preservation material (MOPM), lead, chromium, textile industry.
Co-Authors Dirgawati, Mila Dyah Asri Handayani Taroepratjeka Junita Fachriea Gani Mohamad Rangga Sururi Pricilla Jihan Fadilla