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All Journal Bumi Lestari Science and Technology Indonesia Jurnal Purifikasi Jurnal Engine: Energi, Manufaktur, dan Material
Subriyer Nasir
Chemical Engineering Department, Faculty of Engineering, Sriwijaya University, Inderalaya Ogan Ilir 30662, Sumatera Selatan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Earth & Planetary Sciences Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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APLIKASI FILTER KERAMIK BERBASIS TANAH LIAT ALAM DAN ZEOLIT PADA PENGOLAHAN AIR LIMBAH HASIL PROSES LAUNDRY Subriyer Nasir
Bumi Lestari Journal of Environment Vol 13 No 1 (2013)
Publisher : Environmental Research Center (PPLH) of Udayana University

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

Abstract

AbstractCeramic filters made of natural clay and zeolite were used to treat the efluent from laundryindustry in Palembang. The pretreatment process using silica and active carbon was appliedto the samples prior feed to the ceramic filter. Process variables studied were operatingtime and the filters composition. Parameters analyzed were TDS (Total Dissolved Solid),pH, EC (Electrical Conductivity), COD (Chemical Oxygen Demand), BOD (BiologicalOxygen Demand) and the concentration of LAS (Linear Alkylbenzene Sulphonate). Theresults showed that ceramic filters combined with silica and activated carbon can reducethe LAS concentration in detergent wastewater up-to 97%. Scanning Electron Microscope(SEM) images shows that filter could be categorized as microfiltration filter with randomporous structures.
Fabrication of Thermoplastic Elastomers (TPE) by Using Emulsion Method as an Alternative Material For Vehicle Bumper Protector Puteri Kusuma Wardhani; Nur Padmi T; Subriyer Nasir; Puteri Kusuma Wardhani
Science and Technology Indonesia Vol. 3 No. 4 (2018): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1217.281 KB) | DOI: 10.26554/sti.2018.3.4.151-156

Abstract

Research on Fabrication of Thermoplastic Elastomers (TPE) by Using Emulsion Method as an Alternative Material For Vehicle Bumper Protector aims to produce of the thermoplastic elastomers by emulsion method with variation of composition ratio of polypropylene grafting and Maleic Anhydride (PP-g-MA)(mL) : latex (mL) : glycerin, to have strong tensile strength results according to British Plastic Federation standard 0.5 – 2.4 (N/mm2) standard for bumper material elongation maximum of 22.62%. Emulsion method was used as sample preparation which is grafting polypropylene (PP) with Maleate Anhydride (MA) then continued with PP-g-MA Emulsion Making and Natural Rubber Latex Density. The observation technique of the test is done by FTIR PP-g-MA analysis, stability test, TPE visual analysis, TPE surface morphology using Scanning Electron Microscopy (SEM) tool and TPE tensile strength test. The results of FTIR analysis is that the samples closest to the carbonyl value of C = O with the highest absorption were without glycerine samples 1703.48 cm-1 with the absorption of 94.84% and carbonyl C-O 1219 cm-1 with the absorption of 95.19%. The stability testing of density values reaches the standard of the Plastic Federation of 0.91 - 1.30 g/mL, for samples having the highest and stable density values up to the seventh day of observation is a sample of PP-g-MA: Latex (75:25) which is 1.059 g/mL. In the SEM test on the PP-g-MA sample: Latex (75:25) with a average diameter pores size of 1.408 μm and the smallest diameter pore size of 0.728 μm. The highest value of tensile strength occurred in the sample with the comparison of PP-g-MA: Latex (75:25) 1,175 N/mm2 and a maximum elongation of 22.62%.
APLIKASI MEMBRAN JENIS SPIRAL-WOUND PADA PENGOLAHAN LIMBAH CAIR SEKUNDER Subriyer Nasir
Purifikasi Vol 11 No 1 (2010): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v11.i1.184

Abstract

Study on secondary effluent treatment from Kwinana Water Reclamation Plant (KWRP), Western Australia, was done in small scale Reverse Osmosis (RO) system with a capacity of 2000 L/d. The RO system was equipped with two spiral wound membrane module. Effect of operating pressures and build-up of sodium and calcium ions on membrane surface were important subjects in this research. Results of this study showed that permeate flux, rejection percentage of Total Organic Carbon (TOC) and Total Dissolved Solids (TDS) were significantly affected by operating pressure. However, percentage of water recovery could be achieved only around 48% at an operating pressure of 3250 kPa.
PENGOLAHAN LIMBAH CAIR INDUSTRI PUPUK UREA MENGGUNAKAN FILTER KERAMIK Subriyer Nasir
Purifikasi Vol 12 No 2 (2011): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v12.i2.201

Abstract

The purpose of this research was to design the liquid waste treatment system using ceramic membrane filtration method. The ceramic filter was made of a mixture of clay and coal fly-ash with certain compositions. Rig in this experiment was equipped with PVC piping system, flowmeter, pressure gauge, and the circulation pump. The liquid waste tested was obtained from the secondary effluent of a fertilizer industry. The measured were feed flow rate, permeate flow rate, Total Dissolved Solid (TDS), pH, heavy metal content, and ammonia contents according to the Indonesian National Standards (SNI) of effluent water quality. The results showed that ceramic membrane could decrease the ammonia concentration in the secondary effluent up to 96%. Heavy metal ions (Fe, Cr and Mn) could be reduced to 60.9%, 39.4% and 38.4% respectively. The best composition of membrane/filter was achieved at a ratio of 77.5% clay, 20% fly ash and 2.5% of iron powder.
The Treatment of Musi River Water Sample using Slow Sand Filter and Ultraviolet Radiation (UV) with Solar Cell Power Sources Imaniah Sriwijayasih; Eky Novianarenti; Tuty Emilia Agustina; Subriyer Nasir; Rikky Leonard; Tarikh Azis Rand; Imah Luluk Kusminah
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 2 (2024)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v8i2.1842

Abstract

The Musi River's water is typically used to meet everyday needs. However, because of the current high population and activities, industrial and domestic garbage are being dumped straight into the Musi River. The purpose of this research was to study the variables that affect the processing of the Musi Riiver Water Samples to get the quality standard requirements of the third-grade river water. Water is filtered using a slow sand filter with a 50–70 cm sand height fluctuation and four different UV irradiation times 15, 30, 45, and 60 minutes. The results of this investigation showed that 2% DO was obtained for the filtration of Musi River water using a slow sand filter with a height of 70 cm sand. BOD5 and COD degradation were determined to be 82% and 93%, respectively. Meanwhile, 29/100 ml of E. Coli was discovered for the UV radiation therapy after a 60-minute irradiation period.  
Co-Authors Dwi Sunu Permatahati Eddy Ibrahim Eky Novianarenti Farida Ali Imah Luluk Kusminah Imaniah Sriwijayasih Nur Padmi T Oktarina Musdalipah Puteri Kusuma Wardhani Puteri Kusuma Wardhani Rikky Leonard Roosdiana Muin Tarikh Azis Ramadani Tuty Emilia Agustina