Materials and Technologies Used in Wastewater Treatment

Moga, Ioana Corina; Ardelean, I.; Donțu, Octavian; Moisescu, Cristina; Băran, Nicolae; Petrescu, Gabriel; Voicea, I.

doi:10.1088/1757-899x/374/1/012079

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…Inovasi pada proses aerasi untuk dapat memperkecil kebutuhan lahan adalah dengan memasukan biomedia (carrier ) ke dalam bak aerasi (Moga et al, 2018). Carrier yang ditambahkan ada yang bersifat fluidized (moving) maupun fixed (Wang et al, 2019).…”

Section: Pendahuluan Tentang Ipal Activated Sludgeunclassified

Pemisahan Biosludge pada Proses Integrated Fixed Film Activated Sludge dengan Biofilter sebagai Pengganti Sedimentasi

Subrata,

Sumiyati,

Utomo

2022

J. Ilmu Lingk.

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Pemisahan padatan mikroorganisme atau biosludge dari air hasil olahan di proses pengolahan air limbah sistem biologi aerobik biasanya menggunakan proses sedimentasi yang membutuhkan lahan yang luas. Saat ini dengan lahan terbatas dan mahal, pemisahan dengan proses sedimentasi telah menjadikan permasalahan. Tujuan penelitian ini adalah mencari alternatif pengganti proses sedimentasi dengan kebutuhan lahan yang lebih kecil, yaitu dengan proses biofilter. Selama ini proses biofilter atau bak aerasi yang ditambahkan media bakteri, yang dikenal sebagai IFAS (Integrated Fixed Film Activated Sludge), sebagai tempat untuk mendegradasi kandungan organic biodegradable dan tempat proses nitrifikasi. Penerapan biofilter kedua pada rangkaian instalasi pengolahan air limbah, dirancang sebagai fungsi utama untuk pemisah mikroorganisme/biosludge. Penelitian menggunakan IPAL dengan unit proses Ekualisasi, IFAS dan Biofilter. Biofilter menggunakan bioball berbahan plastik yang terlekat bakteri dengan tinggi bed 1,3 m. Air limbah sebagai makanan mikroorganisme dibuat secara artifisial. Penelitian difokuskan pada dua variable yang berpengaruh yaitu nilai TSS inlet dan Filtration Rate. Sistem biofiltrasi dapat mensubstitusi metode sedimentasi bilamana nilai filtration rate diatas 1,0 m/jam dengan TSS inlet minimum 250 mg/l. Hasil percobaan menunjukan bahwa Pada Nilai TSS inlet 250 mg/l dengan filtration rate 1,19 m/jam menghasilkan TSS outlet 94 mg/l atau dengan efisiensi reduksi sebesar 62%.

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Section: Pendahuluan Tentang Ipal Activated Sludgeunclassified

Pemisahan Biosludge pada Proses Integrated Fixed Film Activated Sludge dengan Biofilter sebagai Pengganti Sedimentasi

Subrata,

Sumiyati,

Utomo

2022

J. Ilmu Lingk.

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“…It provides well mixing in the suspension and enables the catalyst surface to contact with dye surface. Moga et al [28] indicated that the performance of the oxygenation process improved by aeration systems.…”

Section: Aeration Dependence Of the Photocatalytic Activitymentioning

confidence: 99%

Photocatalytic Degradation of Dyes by TiO2 Process in Batch Photoreactor

2020

Lett Appl NanoBioSci

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Chemical contamination in water caused by pollutants is becoming a severe environmental problem. The combination of photocatalysis and solar technologies are a valuable method for water pollution reduction caused by dyeing composites. Therefore, this study aims to determine the effects of operating parameters on the dyes photocatalytic degradation using titanium dioxide (TiO2)-based photocatalyst. Different types of dyes were used in this study, such as methylene blue, congo red, and methyl orange. The different weights of TiO2 were mixed respectively in 500 ml of 10 mg/L dye solutions, which was set up in the photoreactor priorly. Later, the sample extractions were carried and analyzed using a UV-Vis spectrophotometer. The dye removal efficiency was investigated by changing conditions (catalyst dosage, light sources, and aeration). The results showed methylene blue photocatalytic degradation was best with 0.0547 min-1 degradation rate at conditions of 3.0 g/L of TiO2, presence of UVC lamp, and aeration. Congo red photocatalytic degradation was best with 0.0254 min-1 degradation rate at conditions of 1.0 g/L of TiO2, presence of sunlight, and aeration. Methyl orange photocatalytic degradation was best with 0.0094 min-1 degradation rate using 1g/L of TiO2, presence of UVC lamp, and aeration. These findings can be used as an effective option in industrial wastewater treatment.

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“…In terms of related work, issues on the carrier efficiency, biofilm performance, and related concerns were addressed by [11][12][13][14][15][16]. [17] tested and later patented a carrier based in the shape of K1-5 carriers. The applicability of HDPE as a biomass entrapment material in water treatment was demonstrated by [18] using the HDPE mesh.…”

Section: Introductionmentioning

confidence: 99%

Development of Warp Knitted-Based Filtration Media

Lenfeldová,

Ryvolová,

Kdýrová

2023

Preprint

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Biological wastewater treatment based on the removal of various nitrogen forms using activated sludge is a highly efficient and economical method with environmental benefits. The activated sludge comprises bacteria that form colonies on solid carriers (e.g., the most commonly used carrier, AnoxKaldnes). The initial concept behind designing a warp knitted fabric structure (i.e., spacer fabric) with holes is based on the appearance similarity of a three-dimensional fabric and a solid carrier, focusing on potential industrial production. In this study, the longitudinal textile properties of multi- and monofilament materials are measured. A structural analysis is conducted to produce samples unraveled and separated by mono and multifilaments. Density, weight, loop length, filament consumption, specific surface area, and effective area are calculated. Through a basic experiment in a laboratory nitrification reactor, a biofilm is formed on the carriers. The analysis results of the O2 consumption rate of individual design variants reveals minimal differences after 6 and 14 weeks. The efficient carrier area on the outer and inner front and back sides of four developed carrier variants is measured after cutting the monofilaments with the image analysis support. This study might be helpful in designing other textile-based carriers. The warp knitted carrier presented herein demonstrates the capture and presence of an active biofilm evidenced by a higher oxygen consumption rate of up to 8 mg/L/h in 6 weeks. It also shows the benefit of commercially available warp knitted carrier manufacturing.

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Materials and Technologies Used in Wastewater Treatment

Cited by 7 publications

References 10 publications

Pemisahan Biosludge pada Proses Integrated Fixed Film Activated Sludge dengan Biofilter sebagai Pengganti Sedimentasi

Pemisahan Biosludge pada Proses Integrated Fixed Film Activated Sludge dengan Biofilter sebagai Pengganti Sedimentasi

Photocatalytic Degradation of Dyes by TiO2 Process in Batch Photoreactor

Development of Warp Knitted-Based Filtration Media

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