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All Journal Al-Ard: Jurnal Teknik Lingkungan Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil Jurnal Pengendalian Pencemaran Lingkungan (JPPL) International Journal of Eco-Innovation in Science and Engineering (IJEISE) Journal Serambi Engineering (JSE) Journal of Mathematics, Computation and Statistics (JMATHCOS) Environation (Environmental Engineering Journal of Community Dedication)
Jawwad, Muhammad Abdus Salam
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Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences

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Analisis Reduksi Emisi Gas Kendaraan Bermotor Menggunakan Adsorben Berbasis Biomassa Limbah Tempurung Siwalan Abdillah, Riko Ferdinand; Jawwad, Muhammad Abdus Salam
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Incomplete combustion of fossil fuels resulting from motor vehicle emissions releases hazardous pollutants such as carbon monoxide (CO) and hydrocarbons (HC). The high levels of these gases in emissions pose a significant threat to public health, creating an urgent need to develop and implement highly efficient processing or reduction technologies to ensure exhaust gas emission parameters remain within safe limits. This study demonstrates that activated carbon derived from siwalan (lontar) shell, specifically after activation with 25% Na2CO3 is highly effective in lowering exhaust gas emission levels, with the greatest reduction achieved using the largest adsorbent mass of 100 grams. The effectiveness of this adsorption is further supported by the statistical results of the Two-Way ANOVA model, which confirmed a significant influence of both adsorbent mass and adsorption process time. Consequently, the use of activated carbon from siwalan shell proves to be an effective and efficient solution for mitigating motor vehicle gas pollution. It holds significant potential for use as an emission reduction tool, particularly for older motor vehicles that lack existing emission control devices, and serves as a vital effort to comply with government regulations aimed at maintaining stable ambient air quality.
Regenerasi Kinerja Fluks Membran PVDF Ultrafiltrasi Menggunakan Kombinasi Asam Sitrat & H2O2 Dalam Pengolahan Air Sungai Jagir Pamungkas, Kresna Setyawan Adhi; Jawwad, Muhammad Abdus Salam
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Polyvinylidene fluoride (PVDF)-based ultrafiltration membranes are widely used because they can remove suspended and dissolved contaminants from water. However, fouling remains a major challenge, causing flux reduction and shortening the lifespan of the membrane. This study evaluated the performance of PVDF membranes when filtering Jagir River water, and assessed the effectiveness of stepwise washing with citric acid (C₆H₈O₇) and hydrogen peroxide (H₂O₂). Experiments were conducted at operating pressures of 1, 1.5 and 2 bar. Membrane flux was measured under four operating conditions: initial flux using distilled water (Jw1); river water flux before washing; flux using distilled water after washing (Jw2); and river water flux after washing. The results showed that Jw1 increased with increasing pressure, reaching a maximum value at 2 bar. However, river water filtration caused a significant decrease in flux due to fouling. Stepwise chemical washing partially recovered the flux, as indicated by the increases in Jw₂ and river water flux after washing. However, full recovery was limited by irreversible fouling. The highest Flux Recovery Ratio (FRR) value was obtained at 2 bar with a 6 wt% washing solution, indicating that the combination of high pressure and chemical treatment provides optimal performance recovery. Overall, the PVDF membrane can be effectively regenerated using citric acid and hydrogen peroxide; however, organic and inorganic mixed fouling limits total flux recovery.
Pengaruh ZnO-Karbon Aktif Terhadap Penurunan Cr(VI) Pada Air Limbah Batik Dengan Metode Fotokatalisis Iradiasi Sinar Tampak Anhar, Farhan Auladana Putra; Mirwan, Mohammad; Jawwad, Muhammad Abdus Salam; Muljani, Srie
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Industri batik menghasilkan air limbah yang di dalamnya terkandung logam berat kromium heksavalen Cr(VI) dengan sifat toksik, karsinogenik, dan berbahaya bagi lingkungan perairan. Salah satu metode yang berpotensi efektif dan ramah lingkungan untuk menurunkan kadar Cr(VI) adalah fotokatalisis. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan komposit ZnO–karbon aktif dan massa katalis terhadap kinerja fotokatalisis dengan iradiasi sinar tampak dalam menurunkan kadar Cr(VI) pada air limbah batik. Variasi yang digunakan meliputi massa katalis sebesar 30 gram, 45 gram, dan 60 gram. Hasil penelitian menunjukkan bahwa penggunaan komposit ZnO-karbon aktif mampu meningkatkan efisiensi penurunan Cr(VI) dibandingkan ZnO tanpa modifikasi. Kombinasi kondisi optimal diperoleh pada penggunaan komposit ZnO - karbon aktif dengan massa terbesar dan waktu kontak terlama dengan efisiensi penyisihan sebesar 39%.
Co-Authors Abdillah, Riko Ferdinand Alifiyah, Hana Nisrina Anhar, Farhan Auladana Putra Darmawan, Agges Brian Fachrudin, Rizal FAJAR HIDAYAT Firza Ramadhan, Firza Mirwan, Mohammad Nisa', Syadzadhiya Qothrunada Zakiyayasin Nita Citrasari Novembrianto, Rizka Pamungkas, Kresna Setyawan Adhi Praditya Sigit Ardisty Sitogasa Purnomo, Yayok Suryo Putri, Marsanda Amelia Restu Hikmah Ayu Murti Rosariawari, Firra Sholikin, Mohamad SRIE MULJANI Syakiroh, Maulidah Wijaya, Rama