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All Journal CHEMICA Jurnal Teknik Kimia Jurnal Dinamika Penelitian Industri Jurnal Redoks Martabe : Jurnal Pengabdian Kepada Masyarakat PELS (Procedia of Engineering and Life Science)
Erna Yuliwati
Universitas Muhammadiyah Palembang
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Social Sciences

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A-STATE-OF-ART REVIEW ON ADDITIVES FUNCTION ON POLYMERIC MEMBRANE PERFORMANCE FOR WASTEWATER TREATMENT Sri Martini; Dian Kharismadewi; Erna Yuliwati
Jurnal Dinamika Penelitian Industri Vol 32, No 2 (2021): JURNAL DINAMIKA PENELITIAN INDUSTRI
Publisher : Balai Riset dan Standardisasi Industri Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28959/jdpi.v32i2.7035

Abstract

In this article, the recent development of polymeric membrane fabrication using additive for wastewater treatment is presented. The application of this substance has been recognized reliable to increase membrane performance against fouling phenomenon, especially for purifying industrial wastewaters that mostly have high loading of hazardous pollutants. The effects of modification techniques through additives addition on membrane casting solution are considerably included. This paper also discusses membrane fouling mechanism and other existing technologies available for treating contaminated water. Despite the existence of review paper discussing membrane fouling mitigation on literature, there is still the need of comprehensive review related to the novel technology regarding additive blending on membrane, especially on polymer-based membrane for water pollution control. Eventually, clear conclusion can be drawn that the suitability of additive substances and its composition as well as suitable operating conditions have great leverage on polymeric membrane performance regarding its anti-fouling and hydrophilic level.
Adsorption Analysis of Activated Carbon from Rice Husk and Kepok Banana (Saba Banana) Peel for Treating Ogan River Water Kiagus Ahmad Roni; Erna Yuliwati
CHEMICA: Jurnal Teknik Kimia Vol 7, No 2 (2020): Desember 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/chemica.v7i2.18290

Abstract

Ogan river has been utilized as source of raw water for various purposes. The quality of water needs to be monitored continuously. Nowadays, the Ogan River was polluted by household waste and industrial wastewater. This study aims to obtain a better adsorber of rice husks or kepok banana peels activated carbon for treating the Ogan river. Activated carbon is used in different states of applications after its discovery as a robust and reliable is adsorbent. The used method to produces activated carbon is pyrolysis, physical-chemical activation, and steam pyrolysis from agricultural waste materials, e.g., rice husk, palm oil shell, and banana peels. Activated carbon is applied in water treatment, significantly to reduce total suspended solids, pH, and heavy metal (iron) of the Ogan river. In this study, rice husk and kepok banana peels activated carbon were produced using chemical activation with H3PO4 0.1 N 20% at a temperature of 450 oC. The morphological and performance test was conducted on prepared activated carbon. The top surface area of both activated carbon was observed using a scanning electron microscope (SEM) and Fourier-transform infrared spectroscopy (FTIR) analysis. The mean pore size was calculated to describe the adsorption process of the ogan river, which indicated total suspended solids (TSS) and iron (Fe) concentration, then pH value. The results showed that kepok banana peels activated carbon reduced TSS levels of 79.3 to 48.2 mg/L, decreased Fe concentration of 0.63 to 0.07 mg/L, and increased pH value of 5.94 to 7.89. Meanwhile, the adsorption using activated carbon of rice husk could reduce TSS concentration of 79.3 to 36.1 mg/L, decrease Fe concentration of 0.63 to 0.01 mg/L and increase the pH value increased from 5.94 to 7.16. It was concluded that the activated carbon of rice husks has better performance than kepok banana peels.
PENAMBAHAN INHIBITOR EKSTRAK DAUN PEPAYA (CARICA PAPAYA L.) TERHADAP PENGARUH LAJU KOROSI PADA BAJA KARBON DALAM LARUTAN AIR LAUT Kiagus Ahmad Roni; Elfidiah Elfidiah; Erna Yuliwati; Bela Marselia
Jurnal Redoks Vol 7, No 1 (2022): REDOKS JANUARI-JUNI
Publisher : Universitass PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/redoks.v7i1.7005

Abstract

Indonesia merupakan negara berkembang, dimana indonesia mengalami pertumbuhan ekonomi serta pembangunan yang terjadi setiap tahun mengakibatkan meningkatnya penggunaan berbagai logam, misalnya berupa besi, baja, aluminium, seng dan jenis logam lainnya. Seiring dengan berjalannya waktu penggunaan logam yang berhubungan langsung dengan lingkungan sekitar dapat menyebabkan penurunan mutu logam akibat interaksi logam tersebut dengan lingkungannya. Proses terjadianya korosi ini dapat kita kendalikan atau hambat dengan penambahan inhibitor. Inhibitor korosi itu sendiri dapat didefinisikan sebagai suatu zat yang apabila ditambahkan ke dalam lingkungan korosif akan menurunkan korosi dari lingkungan tersebut pada logam. Salah satu tanaman yang banyak mengandung tanin dan zat antioksidan yang dapat berpotensi sebagai inhibitor korosi adalah daun pepaya (Carica papaya L.). Adanya kandungan tannin di dalam daun pepaya menjadikan tanaman ini kemungkinan dapat dipakai untuk menghambat laju korosi dari Baja Karbon. Variabel yang digunakan untuk diteliti adalah variasi waktu perendaman yaitu 3 hari, 6 hari, 10 hari dan juga variasi penambahan volume Inhibitor dengan konsentrasi 0%, 3% dan 9%. Hasil perendaman dan penambahan volume inhibitor yang efektif menurunkan laju korosi yaitu pada perendaman 6 hari dengan volume inhibitor 6% mendapatkan nilai penurunan laju korosi sebesar 1,0308 x 10-6 gr/cm2 . jam dan dengan nilai efisiensi sebesar 75,64%.
The Adsorption of Iron (Fe) in Dyeing and Washing Waste of Jumputan Fabric Using Active Carbon from Tea Grounds Dewi Fernianti; Erna Yuliwati; Nuri Nuri
Procedia of Engineering and Life Science Vol 2 No 2 (2022): Proceedings of the 4th Seminar Nasional Sains 2022
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v2i2.1226

Abstract

The iron (Fe) contained in the waste dyeing process and the washing process of the jumputan fabric weaving industry is relatively high; this can cause water pollution in the waters around the jumputan fabric weaving industry if the iron content is not adsorbed. One of the methods used to decrease iron content (FE) is adsorption. The adsorbent used for this iron adsorption (Fe) process is activated carbon made from black tea grounds. Before adsorbing iron, making activated carbon from black tea grounds is carried out first, namely by carbonating the tea grounds at the temperature of 500oC for 20 minutes, then using a 4% NaOH solution for 24 hours. The quality results of activated carbon from black tea grounds produced are 19,1635% of volatile matter, 9,1465% of water content, 2,0911% of ash content, 69,5989% of pure activated carbon, and 0.2664 mg/L adsorptions of methyl blue, and these characteristics meet the quality standard of SNI no.06-3730-1995. Activated carbon that is produced and has filled the quality standards is then used to absorb iron (Fe) content in the dyeing and washing process waste of the jumputan weaving industry. The adsorption carried out the process for 72 hours with adsorbent mass variables of 1 g, 2 g, 4 g, 8 g, and 10 g. Then the levels of iron (Fe) were analyzed using AAS. The best condition for adsorption of iron content in the waste dyeing process of jumputan fabric was obtained at a mass of 10 g of adsorbent was 32.437 mg/L with an adsorption efficiency of 99.68%, the same condition for adsorption of iron content in washing waste that was equal to 9.998 mg/L with an adsorption efficiency of 99.68%.
SISTEM PENJERNIH AIR METODE AERASI DI KELURAHAN PLAJU DARAT PALEMBANG Netty Herawaty; Kgs. A Roni; Erna Yuliwati; Mardwita Mardwita; Husnul Khotimah
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 12 (2023): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i12.4396-4401

Abstract

Plaju Darat merupakan kelurahan terujung dari Kota Palembang yang berbatasan dengan Kabupaten Banyuasin dengan luas daerah 18,50 Ha. Kontur lahan di kelurahan ini berupa tanah rawa dimana 70% dari luas lahan digunakan untuk pertanian rawa dan sisanya untuk pemukiman. Dengan kondisi lahan yang berupa dataran rendah rawa, memunculkan persoalan tersendiri terkait ketersediaan air bersih. Aliran air bersih dari PDAM Tirta Musi memang telah menjangkau daerah ini, namun belum mencukupi kebutuhan masyarakat. Karenanya masih banyak masyarakat yang menggunakan air sumur untuk keperluan sehari-hari. Ketersediaan air bersih yang belum mencukupi meskipun layanan PDAM telah menjangkau daerah ini sehingga masyarakat masih menggunakan air sumur. Dari permasalahan diatas tim Pengabdian Kepada Masyarakat (PKM) Prodi Teknik Kimia Universitas Muhammadiyah palembang melakukan instalasi penjernih air dengan metode aerasi di salah satu pusat ibadah Kelurahan Plaju Darat yaitu masjid Sirajul Munir Sirajul Munir. Metode yang di terapkan dalam pengabdian dimulai dari 1). analisis situasi kelurahan, 2) merancang sistem instalasi penjernih air, 3) menginstalasi sistem penjernih air, 4) pengujian sistem penjernih air, 5) evaluasi hasil pengabdian. Hasil yang di capai berupa tersedianya sistem  penjernih air beserta peralatan pendukungnya guna menjamin keberlangsungan tersedianya air bersih untuk tempat ibadah masjid Sirajul Munir.
Co-Authors Bela Marselia Elfidiah, Elfidiah Fernianti, Dewi Husnul Khotimah Kgs. A Roni Kharismadewi, Dian Kiagus Ahmad Roni Mardwita, Mardwita Netty Herawaty Nuri Nuri Sri Martini