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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Kesehatan Lingkungan indonesia Jurnal Ilmu Lingkungan JURNAL TEKNOLOGI LINGKUNGAN SUSTINERE: Journal of Environment and Sustainability Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Dinamika Lingkungan Indonesia Jurnal Impresi Indonesia Jurnal Lingkungan dan Sumberdaya Alam (JURNALIS) Journal Of World Science Journal of the Civil Engineering Forum INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal Teknologi Lingkungan Journal Serambi Engineering (JSE)

Adityosulindro, Sandyanto

Environmental Engineering Study Program, Civil Engineering Department, Faculty Of Engineering, Universitas Indonesia

Author-ID : 3878246

Religion Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Public Health Social Sciences

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Evaluasi Kualitas dan Kuantitas Lumpur Alum dari Instalasi Pengolahan Air Minum Citayam Adityosulindro, Sandyanto; Rochmatia, Nurul Hasanah; Hartono, Djoko Mulyo; Moersidik, Setyo Sarwanto
Jurnal Teknologi Lingkungan Vol. 21 No. 2 (2020)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

ABSTRACTWater treatment plants (WTPs) produces residues in the form of alum sludge during the treatment process. In Indonesia, due to various techno-economic constraints, some WTPs are not equipped by sludge treatment systems, so the generated alum sludge is discharged directly into water bodies without appropriate treatment. This condition may pollute water bodies because alum sludge contains various contaminants such as solid particles, organic compounds, inorganic metals, aluminum, and pathogenic microorganisms. This study aims to evaluate the characteristics of alum sludge from aspects of quality and quantity, which is indispensable for the design of sludge treatment facilities. Citayam WTP (capacity of 120 L/s) in Depok City was chosen as a case study. The study was conducted in several stages as follows: (i) survey and sampling; (ii) quality analysis of alum sludge; (iii) estimation of sludge generation; and (iv) mass and volume balance analysis. Results of comparative analysis of alum sludge quality against the Regulation of Minister of Environment of Indonesia 5/2014 shows alum sludge from flocculation units meets quality standards.Ã‚Â In contrast, alum sludge from sedimentation and filter units were exceeded for TSS, COD, and Total Coliform parameters. Quantity-wise, the estimation of sludge generation by theoretical and empirical methods was found to be 1,898 kg/day and 4,854 kg/day. Analysis of mass and volume balance using STAN software indicates that the theoretical approach is quite representative, while the empirical method tends to be over-estimated.Keywords: alum sludge, sludge quality, sludge generation, water treatment plant, case studyABSTRAKInstalasi pengolahan air (IPA)Ã‚Â dalam proses pengolahannya akan menghasilkan residu berupa lumpur alum. Di Indonesia, akibat berbagai kendala tekno-ekonomis, masih terdapat IPA yang belum memiliki sistem pengolahan lumpur alum sehingga langsung dibuang ke badan air tanpa pengolahan. Kondisi ini berpotensi mencemari badan air karena lumpur alum mengandung berbagai kontaminan seperti partikel padat, senyawa organik, inorganik, logam aluminiumÃ‚Â serta mikroorganisme patogen. Penelitian ini bertujuan untuk mengevaluasi karakteristik lumpur alum dari aspek kualitas dan kuantitas yang merupakan informasi penting dalam perancangan sistem pengolahan lumpur. IPA Citayam (Kapasitas 120 L/detik) di Kota Depok dipilih sebagai objek studi. Penelitian dilakukan dalam beberapa tahapan yakni survei dan sampling, analisis kualitas lumpur alum, estimasi timbulan lumpur, dan analisis neraca massa dan volume. Hasil perbandingan analisis kualitas lumpur alum terhadap PermenLH 5/2014 menunjukan lumpur alum dari unit flokulasi memenuhi baku mutu sedangkan lumpur alum dari unit sedimentasi dan filter melebihi baku mutu lingkungan untuk parameter TSS, COD dan Total Koliform. Dari aspek kuantitas, estimasi timbulan lumpur yang dilakukan dengan metode teoritik dan empirik berturut-turut sebesar 1.898 kg/hari dan 4.854 kg/hari. Analisis neraca massa dan volume menggunakan softwareÃ‚Â STAN mengindikasikan bahwa metode teoritik cukup representatif, sedangkan perhitungan dengan metode empirik cenderung menjadi over-estimasi.Kata kunci: lumpur alum, kualitas lumpur, timbulan lumpur, instalasi pengolahan air, studi kasus

Sintesis dan Karakterisasi Zeolit Hidroksi Sodalit dari Limbah Padat Abu Layang PLTU Batubara Amalia Ekaputri Hidayat; Setyo Sarwanto Moersidik; Sandyanto Adityosulindro
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 4, No 2 (2019): EDISI SEPTEMBER 2019
Publisher : Universitas Tribhuwana Tunggadewi Malang

Coal burning process in steam powered electric generator plants functioned to generate electricity energy. This process produce kinds of waste, such as solid waste, waste water, and emission. One of the solid waste produced in this process is fly ash. Fly ash is categorized as hazardous waste, it also can buildup in the landfill because of its massive production. However, fly ash has the potential as a raw material to produce synthetic zeolite because it contains metal oxide which is quite high. In this study, class F coal fly ash was synthesized by combining hydrothermal and fusion method. Synthesized fly ash and zeolite are characterized so that the chemical composition can be analyzed by X-ray Fluorescence; the mineralogy analyzed by X-ray Diffraction; the surface morphology analyzed by Scanning Electron Microscopy; and the particle size analyzed by Particle Size Analyzer. The synthesis of zeolite from coal fly ash in this study result hydroxy-sodalite zeolite type. In addition, this synthesis process increases the surface area of the previous fly ash. From the characteristics of zeolite from this synthesis it can be conclude that this zeolite can be approved as an adsorbent for the removal of liquid or gas pollutants in environmental technology applications with further research. ABSTRAKProses yang terjadi pada Pembangkit Listrik Tenaga Uap untuk menghasilkan energi listrik adalah melalui unit proses pembakaran batubara. Proses ini akan menghasilkan limbah padat, cair, maupun udara. Salah satu limbah padat yang dihasilkan adalah abu layang. Limbah abu layang ini dikatagorikan limbah bahan berbahaya dan beracun, serta dapat terjadinya penumpukan di tempat penimbunan akhir karena produksinya yang sangat tinggi. Namun, abu layang memiliki potensi sebagai bahan baku dalam memproduksi zeolit sintetik karena kandungan oksida logamnya yang cukup tinggi. Pada penelitian ini, abu layang batu bara kelas F disintesis dengan metode gabungan fusi-hidrotermal. Abu layang dan zeolit yang disintesis dikarakterisasi agar dapat dianalisis komposisi kimianya dengan X-ray Flourescence; mineraloginya dengan X-ray Diffraction; morfologi permukaan dengan Scanning Electron Microscopy; serta distribusi partikel dengan Particle Size Analyzer. Proses sintesis zeolit dari abu layang batubara pada penelitian ini menghasilkan zeolit jenis hidroksi sodalit. Selain itu, proses sintesis ini meningkatkan luas permukaan dari abu layang sebelumnya. Dari karakteristik zeolit hasil sintesis ini dapat disimpulkan bahwa zeolit ini dapat berpotensi sebagai adsorben untuk penyisihan polutan cair maupun gas pada aplikasi teknologi lingkungan dengan penelitian lebih lanjut.Kata kunci : abu layang; zeolit; hidroxi-sodalit; sintesis; fusi-hidrotermal

Literature Review: Penggunaan Bahan Berbasis Limbah Sebagai Adsorben untuk Degradasi Zat Warna pada Air Limbah Septi Fatimatus Zahro; Sandyanto Adityosulindro
Jurnal Kesehatan Lingkungan Indonesia Vol 22, No 3 (2023): Oktober 2023
Publisher : Master Program of Environmental Health, Faculty of Public Health, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkli.22.3.359-368

Latar belakang: Penggunaan adsorben bahan limbah dari limbah pertanian, industri maupun bahan alam menjadi alternatif baru dalam pengolahan air limbah yang mengandung zat warna. Limbah ini dapat menyebabkan berbagai masalah kesehatan bagi makhluk hidup mulai dari alergi, cidera permanen, asma, bahkan kanker. Tujuan review artikel ini adalah untuk memberikan informasi tren penelitian penggunaan adsorben dari bahan limbah dalam penyisihan zat warna serta informasi mengenai komposisi bahan, dan pengaplikasiannya sebagai potensi alternatif baru bahan adsorben dalam pengolahan limbah.Metode: Metode dalam penulisan review artikel ini dengan metode PRISMA 2020 menggunakan PRISMA checklist melalui 27 identifikator yang telah disediakan. Seleksi artikel dilakukan dengan beberapa kriteria dari tahun publikasi, kata kunci, klasifikasi bahan adsorben, serta artikel tentang adsorpsi secara umum sebagai pendukung. Artikel jurnal terpilih dan sesuai dengan kebutuhan sebanyak 28 artikel kemudian dilakukan pengkajian serta pembahasan lebih lanjut.Hasil: Hasil review artikel yang dikaji sebanyak 50% artikel yang memanfaatkan limbah pertanian sebagai adsorben, 18% artikel memanfaatkan limbah industri, dan 32% artikel memanfaatkan bahan alam. Pengkajian dilakukan menyeluruh mengenai metode pembuatan adsorben, komposisi bahan adsorben, kemampuan adsorpsi, studi kinetika dan studi isotherm adsorpsi. Hasil kajian menunjukkan kemampuan adsorben bahan limbah sangat baik dengan efisiensi tertinggi hingga 99,95%. Metode pembuatan adsorben yang paling umum digunakan dengan aktivasi fisika. Model isotherm yang digunakan sebagian besar adalah Langmuir dengan kinetika adsorpsi pseudo orde kedua.Simpulan: Potensi pemanfaatan adsorben dari bahan limbah sangat besar, ditinjau dari persentase efisiensinya dan kelimpahan bahan baku. Dalam proses adsorpsinya dipengaruhi oleh kandungan bahan, luas permukaan, dan metode pembuatan adsorben. ABSTRACT Title: Literature Review: The Use of Waste Materials as Adsorbent for Degradation Dyes in WastewaterBackground: Industrial, agricultural, and natural dyes can now be treated with adsorbents. This wastewater can cause allergies, serious wounds, asthma, and cancer. This article review discusses current research trends in using waste materials as dye removal adsorbents and their composition and possible usage as new, alternative adsorbents in the waste treatment sector.Method: This article review used PRISMA 2020 with 27 identifiers and the checklist. Articles were selected by year, keywords, adsorbent material categorization, and adsorption in general. Following 28 article requirements, selected journal articles were researched and discussed.Result: The analysis of the articles found that 32% of the articles used natural materials, 18% of the articles used industrial waste, and 50% of the articles used agricultural waste as an adsorbent. The process for creating adsorbents, the make-up of adsorbent materials, adsorption capacity, kinetic studies, and adsorption isotherm studies were all thoroughly evaluated. The study's findings demonstrate that waste materials have excellent adsorbent properties, with the highest efficiency reaching up to 99.95%. Physical activation is the most widely used adsorbent preparation technique. Most of the isotherm models in use have pseudo-second order adsorption kinetics and are Langmuir.Conclusion: Given the percentage of efficiency and the abundance of raw materials, there is a very large potential for using adsorbents made from waste materials. The adsorbent's surface area, material composition, and manufacturing process all have an impact on the adsorption process.

Analysis the Effect of Flux and Water Characteristics on Polyethersulfone Ultrafiltration Membrane Performance as Pre-Treatment of SWRO Sucipta Laksono; Irwan Irwan; Sandyanto Adityosulindro
Jurnal Ilmu Lingkungan Vol 22, No 4 (2024): July 2024
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.22.4.836-844

Increasing human population resulted in higher demand for potable freshwater, while freshwater sources were limited. As an alternative solution, seawater was necessarily to be employed as a main source of water supply and necessarily treated with Seawater Reverse Osmosis (SWRO). However, membrane fouling of SWRO was occurred. Therefore, implementation of ultrafiltration membranes as pre-treatment were necessary. In this study, identification of removal efficiency seawater characteristics of TDS, COD, conductivity, and UV-Vis parameters at different flux and investigation of the fouling rate at variations filtration performance of the 50 kDa MWCO pore size PES ultrafiltration membrane was performed. Filtration of laboratory scale experiment with constant flux of 120 L/m²⋅h and 180 L/m²⋅h at dead-end operation was performed. Filtration of 50 kDa PES ultrafiltration membrane was able to remove effectively turbidity, TDS, UV-Vis, conductivity, and COD with 63±6%; 37±19%; 7±4%; 33±33%; dan 97.86%, respectively. Furthermore, related to membrane performance, filtration at 120 L/m²·h flux operation was found as the common fouling mechanisms, while flux operation at 180 L/m²·h resulted different behavior resulted for severe membrane performance. The suitable operation of fluxes 120 L/m²·h was recommended to increase the performance and membrane lifespan as well as to decrease the load of SWRO unit.

Studi Preliminer Pemanfaatan Lumpur Vulkanik Sidoarjo Sebagai Adsorben Zat Warna Napthol di Air Limbah Batik Septi Fatimatus Zahro; Sandyanto Adityosulindro
Dinamika Lingkungan Indonesia Vol 11, No 1 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/dli.11.1.p.17-22

The Sidoarjo Volcanic Mudflow has been one of Indonesia's ongoing national catastrophes since 2006. Numerous studies have been conducted to examine the potential applications of this abundant material due to its massive quantity. In this work, Sidoarjo Volcanic Mud was utilized as a dye-removing adsorbent in batik wastewater. To increase the effectiveness of Sidoarjo Volcanic Mud as an adsorbent, physical and chemical activation techniques were employed, and the results were compared to a control without activation. The sample was heated at 550 °C for three hours to be physically activated. The sample was chemically activated by applying 5N H2SO4 solution for 2.5 hours. In a batch system with an orbital shaker, adsorption tests were conducted for the color removal of pure and pre-treated batik wastewater. Using UV-Vis spectrophotometry, the decolorization of batik wastewater was monitored during the reaction. Due to the high concentration of apparent color in the sample, the effect of the adsorbent activation method was insignificant in pure batik wastewater. In contrast, the effect of the adsorbent activation method was evident in pre-treated batik wastewater, where up to 50% decolorization of the true color was achieved with chemically activated, 18.75% with no activation, and 23.30% with physical activation.

Removal of Methylene Blue From Aqueous Solutions by Adsorption on Alum Sludge: Effect of Operating Parameters Sandyanto Adityosulindro; Annisa Firdaus; Djoko Mulyo Hartono
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

In developing countries, high capital, operational costs, limited space are the main challenges to implement appropriate sludge treatment system. Thus, research about reutilization sludge are urgently needed. In this study, alum sludge from sedimentation basin of water treatment plant was dried and used as adsorbent for removal methylene blue from aqueous solutions. Alum sludge was charachterized by SEM-EDX, XRD, FTIR, particle size analyzer, surface area analyzer and pHPZC. The effect of various parameters such as: contact time (5-360 min), initial MB concentrarion (5-100 mg/L), adsorbent dosage (0.25-3.0 g/L), pH (4-10), temperature (20-60 0C) and water matrix (deionized, sedimentation basin effluent, river water, wastewater) were assessed. The result showed that removal efficiency has directly proportional with contact time, adsorbent dosage and pH, while an inverse relationship with initial MB concentration was observed. Removal efficiency up to 98% was achieved at MB 50 mg/L, AS 3 g/L, temperature 300, and pH 6.8. Isotherm and kinetic models fitted Langmuir model with capacity of 37.45 mg/g and pseudo-second-order model kinetic. Applicability test in various water matrix indicated that the utilization of low-cost adsorbent from non-modified dried alum sludge has potential for removal of methylene blue from low to moderate contaminated aqueous solution.

Advanced Treatment: Tackling Paracetamol with Fenton Oxidation and Membrane Hybrid Processes Kamal, Fadhila Malahayati; Laksono, Sucipta; Adityosulindro , Sandyanto
Journal of the Civil Engineering Forum Vol. 10 No. 3 (September 2024)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.13031

Paracetamol (PCT) in aquatic environments has become a global concern due to its potential harm to humans and environments. However, conventional water treatment was only able to degrade PCT partially. It was necessary to treat PCT contaminated water with tertiary technologies in particular by combination approach, such as Fenton oxidation and membrane filtration process. This combined approach enabling mitigation of large chemical footprint and iron residue associated with Fenton oxidation, as well as reducing fouling tendency of the membrane. The aim of this study was to evaluate the PCT removal efficiency by hybrid technology Fenton oxidation and membrane filtration. The membrane performance during the filtration process was also analyzed. As an important parameter for Fenton process, concentration of H 2 O 2 /Fe 2+ with ratio of 1:0.5 resulted in optimal removal of 45% PCT in terms of COD removal. However, separation using flat sheet Polyethersulfone Ultrafiltration (UF) with constant flux of 120 L/m²·h resulted in insignificant of COD removal. Nevertheless, the UF process was able to remove up to 54% of Fe 2+ at pH in alkaline condition with 8.5. In addition, a decrease in membrane permeability down to 0.2 L/m²h/bar over time, according to the filtered specific volume during the UF process, indicates fouling of the UF membrane during the 120 minutes of filtration. While the combined approach does not show significant improvement in COD removal, it does help to reduce the chemical footprint of the process, which is an important factor for the applicability of the selected water treatment method.

Utilization of Sidoarjo Volcanic Mud as Heterogeneous Catalyst in Persulfate Oxidation Process Khairunnisa Faza Nisrina; Sandyanto Adityosulindro; Lucky Caesar Direstiyani
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 2 (2024): July 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i2.369-380

Advanced Oxidation Processes (AOP), such as persulfate oxidation is a promising contaminant removal agent for treating wastewater. In this study, Sidoarjo volcanic mud (VM) was applied as heterogeneous catalyst to support the persulfate oxidation process for Congo Red (CR) dye removal. The Sidoarjo volcanic mud is known to have a high iron content, making it a potential catalyst in AOP. This study was conducted under conditions of pH 2, CR 50 mg/L, and catalyst dosage 0.5 g/L and effective reaction volume of 300 mL. This experiment was conducted by comparing three types of catalysts: unmodified volcanic mud (UVM), impregnated volcanic mud (Fe-IVM), and calcined volcanic mud (CVM). The methods were carried out by comparing two methods, namely simultaneous and sequential. The obtained CR removal values for UVM, Fe-IVM, and CVM catalysts were 83.73%, 78.86%, 51.96% for simultaneous and 84.75%, 81.72%, and 87.69% for sequential method. Whereas the UVM catalyst has the highest CR removal value with a lower adsorption value of 16.89%. The production of sulfate radical analyzed by comparing the oxidation process of homogeneous and heterogeneous catalysts. It was shown that the application of VM catalyst as heterogeneous catalyst is very promising for dye removal in wastewater treatment.

Lab Scale Investigation of Inline Powdered Active Carbon-Ultrafiltration Membrane as Pretreatment for Seawater Reverse Osmosis Laksono, Sucipta; Revansa, Labdaswara Bona; Adityosulindro, Sandyanto
Jurnal Teknologi Lingkungan Vol. 26 No. 1 (2025)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2025.3605

Reverse osmosis is a technology to that treat treats seawater as an alternative source for of drinking water supply. Several studies confirmed that pretreatment stages, designed to tackle high salinity and organic material in seawater, contribute significantly to the reliability of SWRO technology. Despite its effectiveness, declination of the performance of SWRO after several operation times resulted in potential improvement. Enhancement of pretreatment process to increase the performance of SWRO is necessary to be investigated. A combination of powdered activated carbon and ultrafiltration (PAC/UF) is employed at a lab scale experiment using real seawater matrix collected from an outlet dissolved air flotation unit as SWRO pretreatment stage. The Experiment was conducted employing a polyethersulfone (PES) membrane with an average pore size of 30 nm at dead-end operation with constant flux of 60 and 120 L/m²·h, respectively. For activated carbon, commercial coconut shell-based PAC was added inside the membrane holder and directly deposited on top of the membrane surface. The experiment was conducted by comparing a single filtration cycle operation using UF with/without activated carbon. UF membrane filtration performance, as well as membrane retention, was observed. PAC/UF resulted in higher removal of organic concentration (UV-Vis) (93-96%) compared to UF (14-43%). Both experiments resulted in high removal up to >90% for turbidity and chemical oxygen demand. Nevertheless, insignificant removal of salts concentration (<5%) was observed. In terms of performance, combined PAC/UF revealed better performance despite a thicker layer in comparison to UF membrane at a similar filtered specific volume of water production. Therefore, a combination PAC/UF at constant flux operation was found to be promising and reliable pretreatment for SWRO. Abstrak Kebutuhan air minum mengalami peningkatan seiring bertambahnya penduduk, tetapi sumber air bersih mengalami penurunan. Hal ini berdampak terhadap pemanfaatan sumber alternatif air laut untuk pemenuhan kebutuhan air minum dengan teknologi reverse osmosis. Walaupun dapat diandalkan untuk mengurangi salinitas tinggi dan kandungan organik air laut, unit pengolahan seawater reverse osmosis (SWRO) mengalami penurunan kinerja setelah pengoperasian dalam kurun waktu tertentu. Salah satu upaya adalah dengan peningkatan proses prapengolahan untuk SWRO. Pada penelitian ini, kombinasi Karbon Aktif Serbuk dan Ultrafiltrasi mempergunakan air laut yang berasal dari outlet unit prapengolahan pada instalasi SWRO. Percobaan filtrasi dilakukan pada percobaan skala laboratorium mempergunakan membran polyethersulfone (PES) dengan ukuran pori 30 nm pada proses dead-end dengan fluks konstan 60 dan 120 L/m²·jam. Karbon aktif bubuk komersial berbahan dasar tempurung kelapa diletakan di atas permukaan membran. Percobaan dilakukan dengan membandingkan operasi siklus filtrasi tunggal menggunakan UF dengan dan tanpa karbon aktif. Parameter pemantauan kualitas air seperti kandungan organik yang dipergunakan antara lain UV-Vis, kekeruhan, kandungan oksigen kimiawi (COD), dan koduktivitas. Penelitian ini menjelaskan bahwa retensi membran PAC/UF menghasilkan penyisihan konsentrasi organik (UV-Vis) yang lebih tinggi (93-96%) dibandingkan dengan hanya mempergunakan UF (14-43%). Untuk kekeruhan dan kebutuhan oksigen kimiawi, kedua percobaan menghasilkan penyisihan yang tinggi hingga >90%. Jika mengacu pada performa filtrasi membran, volume produksi air yang dihasilkan sebanding untuk percobaan hanya dengan UF dan PAC/UF meskipun lapisan PAC/UF lebih tebal. Berdasarkan temuan pada penelitian ini, dapat disimpulkan bahwa kombinasi PAC/UF pada operasi fluks konstan dapat dipergunakan prapengolahan yang dapat diandalkan untuk SWRO.

Investigation of direct Coagulation-Flocculation-Ultrafiltration (CFU) at lab-scale constant pressure and flux operation of copper removal Sucipta Laksono; Ruth Butar; Sandyanto Adityosulindro
Sustinere: Journal of Environment and Sustainability Vol. 8 No. 2 (2024): pp. 138-287 (August 2024)
Publisher : Center for Science and Technology, IAIN Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22515/sustinere.jes.v8i2.377

Limited heavy metal concentrations in drinking water are harmful. The size-exclusion separation process was found to be a technology for removing heavy metals and organic substances. Although promising, a single ultrafiltration process is insufficient for the separation of heavy metals. Therefore, an additional process is required. The combination of coagulation flocculation followed by ultrafiltration was investigated. In this study, water matrix was used to simulate the worst-case scenario by adding 2 mg of copper to the surface water. For the filtration process, a comparison of single ultrafiltration with and without pretreatment using aluminum sulfate was investigated. Filtration was performed in a lab-scale experiment employing a polyethersulfone (PES) membrane with an average pore size of 30 nm operated at constant flux 120 L/m²⋅h and constant pressure of 0.7 bar. Furthermore, TDS retention, copper concentration, and turbidity were observed. Higher Cu removal was found at filtration under constant flux compared to constant pressure (81% and 66%, respectively. In the case of treated water with coagulation (optimum coagulation of 30 mg/L), higher removal of Cu was observed at constant flux operation compared to constant pressure, with 73% and 89% removal, respectively. Additional coagulation resulted in less membrane fouling during the filtration experiment, which explained the better performance almost double that of single ultrafiltration.

Co-Authors Amalia Ekaputri Hidayat Amalia Kusuma Dewi Annisa Firdaus Bastian Okto Bangkit Sentosa Denny Halim Djoko M Hartono Djoko M Hartono Herni Nurulaeni Irwan Irwan Kamal, Fadhila Malahayati Khairunnisa Faza Nisrina Kintan Akila Naurelia Kusrestuwardhani Lucky Caesar Direstiyani Lucky Caesar Direstiyani Maulidiany, Nopa Dwi Mochamad Adhiraga Pratama Ni Putu Sri Wahyuningsih Panca Hadi Arief Setiawan Revansa, Labdaswara Bona Rochmatia, Nurul Hasanah Ruth Butar Samuel Parningotan Septi Fatimatus Zahro Septi Fatimatus Zahro Setyo Sarwanto Moersidik Siti Annisa Sucipta Laksono Tazkiaturrizki Tazkiaturrizki Vanni Randu Lasaufa

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