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Rizki Purnaini
Jurusan Teknik Lingkungan, Fakultas Teknik Universitas Tanjungpura
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation

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Perencanaan Sistem Plambing Air Hujan di Sekolah Menengah Pertama Negeri (SMPN) 8 Kota Pontianak Almutahar, Syarifah Farah Oktavianda Armelia; Purnaini, Rizki; Kadaria, Ulli
Jurnal Teknologi Lingkungan Lahan Basah Vol 12, No 1 (2024): Januari 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v12i1.73278

Abstract

Sekolah merupakan salah satu fasilitas pendidikan yang dibangun untuk kegiatan belajar mengajar yang dilakukan oleh murid dan guru agar dapat meningkatkan taraf hidup. Kegiatan belajar mengajar yang berjalan selama 8 jam sehari, tentunya membutuhkan air bersih untuk keperluan sanitasi Kota Pontianak memiliki curah hujan sebesar 3286 mm/tahun dengan tingginya curah hujan tersebut maka air hujan tersebut dapat dipakai untuk sumber air bersih. Tujuan dari perencanaan ini ialah untuk merencanakan sistem plambing dengan air hujan sebagai sumber air bersihnya. Metode perencanaan sistem plambing dengan menggunakan metode perkiraan kebutuhan air bersih berdasarkan Unit Beban Alat Plambing (UBAP). Hasil perencanaan yang didapatkan Ukuran dimensi pipa air bersih sebesar 3/4-2 inchi dan pipa yang akan digunakan ialah pipa PVC.
Analisis Sebaran BOD dan TSS pada Sungai Kapuas di Sekitar PTPN XIII Rimba Belian Kabupaten Sanggau Larasati, Allisha; Winardi, Winardi; Purnaini, Rizki
Rekayasa Vol 17, No 2: Agustus, 2024
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v17i2.24586

Abstract

The research area, namely the Kapuas River, serves as a disposal site for waste from household activities, including bathing, washing, and sanitation (MCK), as well as waste from the industrial and plantation sectors. PTPN XIII Rimba Belian, located in Rimba Belian Hamlet, Semerangkai Village, Kapuas Subdistrict, Sanggau Regency, operates in palm oil (CPO) production, resulting in the formation of waste containing organic compounds such as BOD and TSS. Waste from the PTPN factory's wastewater treatment plant (IPAL) that enters the river can render the river unsuitable for use, leading to diseases, and may cause a decrease in the river's assimilative capacity. Therefore, modeling is needed to analyze the spread of BOD and TSS and calculate the assimilative capacity for pollution using the WASP 7.5 model. The objective of this modeling is to predict the river's assimilative capacity for pollution and the impact of changes in water quality caused by oil palm plantations around the Kapuas River in the research location. The modeling is conducted by segmenting the river into 6 segments. The results of this study indicate that the PTPN XIII factory plays a significant role in contributing to BOD and TSS parameters. The assimilative capacity for BOD in the research location shows positive values in all segments except for segment 4, which has a negative value. Meanwhile, the assimilative capacity for TSS pollution load shows positive values in all segments.
Electrocoagulation and Filtration for Brackish Peat Water Desalination Danial, Mochammmad Meddy; Soeryamassoeka, S.B.; Irmansyah, Fitri; Purnaini, Rizki; Teguh, Rahmat
Jurnal Teknik Sipil Vol 24, No 4 (2024): Vol 24, No 4 (2024): JURNAL TEKNIK SIPIL EDISI NOVEMBER 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i4.86660

Abstract

Electrocoagulation and filtration have been recognized as effective solutions for water treatment for many years. However, their application in the desalination process remains relatively uncommon. This research will highlight the requirement of systematic investigation into the potential of these processes for effectively reducing salinity levels on brackish water sources. Therefore, this experimental study in a laboratory setting is proposed to explore the efficacy of electrocoagulation combined with filtration in desalinating brackish peat water. The study aims to analyze the performance of these combined treatment processes by measuring key water quality parameters, including salinity and total dissolved solids (TDS), before and after treatment. Through a series of controlled experiments, the effects of varying treatment durations and operational conditions will be assessed to determine optimal parameters for maximum desalination efficiency. By employing advanced statistical analyses, such as ANOVA, this research will rigorously evaluate the effectiveness of the treatment processes. The combination of electrocoagulation (4 hours) and filtration (30 minutes) achieves significant reductions in both salinity and TDS, with a 40% to 83% improvement in water quality. ANOVA confirms these results, showing significant effects (F F-crit, P 0,05). While filtration alone is more effective than electrocoagulation, the combined approach yields even greater contaminant removal, highlighting its superior efficiency.
ANALISIS PENENTUAN LOKASI PRIORITAS JARINGAN SPALD TERPUSAT KAWASAN PERKOTAAN NGABANG Elistiawati, Lusia; Nurhayati, Nurhayati; Purnaini, Rizki
Jurnal Teknik Sipil Vol 21, No 1 (2021): JURNAL TEKNIK SIPIL EDISI JUNI 2021
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtst.v21i1.59198

Abstract

Kawasan perkotaan Ngabang Kabupaten Landak mengalami permasalahan sanitasi seperti grey water dan black water, jika tidak di perhatikan akan mengakibatkan kerusakan lingkungan. Berdasarkan aturan pedoman SPALD tahun 2017 terbagi menjadi menjadi 2 kriteria SPALD-T dan SPALD-S. Variabel penelitian yang akan di teliti adalah proyeksi penduduk, kepadatan penduduk, permeabilitas tanah, kedalaman tanah, kemiringan lereng tanah, pola sanitasi, kawasan banjir, penggunaan lahan, zonasi RDTRK, buffer permukiman 100 meter dan kondisi black water proses tersebut mengunakan metode overlay weight dengan aplikasi Arcgis 10.8 dari variabel keseluruhan ini akan mendapatkan nilai bobot. Penilaian bobot merupakan dasar penentuan lokasi IPAL-D setelah itu perlu pengujian dengan aplikasi Epanet 2.2 untuk mengetahui head loss jaringan saluran primer. Perencanaan jaringan pipa primer memprioritaskan dekat dengan sarana dan prasarana sehingga pemeliharaan akan lebih mudah. Perencanaan jaringan pipa primer mengunakan sistem gravitasi sehingga memudahkan air limbah padat dapat terbantu untuk menuju ke tempat pembuangan.
PERFORMANCE ANALYSIS OF SMALL SCALE DESALINATION PLANT BASED ON MULTI TRAY AERATOR, MEDIA FILTER, AND SEAWATER REVERSE OSMOSIS Danial, Mochammmad Meddy; Purnaini, Rizki; Khairi, Syahrul; Setiawan, Eric; Nadeak, Raymond; Septiansyah, Edo; Abshar, Khairul
Jurnal Teknik Sipil Vol 22, No 2 (2022): JURNAL TEKNIK SIPIL EDISI DESEMBER 2022
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtst.v22i2.58988

Abstract

Seawater as abundant source for clean water is deemed as impossible task, particularly in developing country. Therefore, the feasibility of applying the reverse osmosis technology, particularly in the coastal area for drinking water is need further investigation. This paper aims to design and analyze the performance of small-scale desalination plant using combination of multi tray aerator, media filter, and multiple membranes consisting of ultrafiltration, brackish, and seawater membranes.Parameters used to verify the performance of small plant are salinity and total dissolved solid for membranes, while the parameters for examining the pre-treatment are Fe and Mn. The test results will be evaluated under the regulation of minister of health, Permenkes No. 32/2017. The influence of the pump pressure on the flow will also be analyzed.The result shows that the desalination plant can reduce the salinity concentration significantly from 10,200 ppm to 16 ppm, or 99.84%. The ratio of clean water to rejected water is 36%.  However, bacteria of E. Coli are still found in clean water, which is probably caused by biofouling.
PLANNING FOR THE DEVELOPMENT OF A DRINKING WATER DISTRIBUTION SYSTEM NETWORK IN SUNGAI PINYUH Muhammad, Vira Fadila; Kadaria, Ulli; Purnaini, Rizki
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.78461

Abstract

The increasing water demand due to population growth and territorial expansion has significantly outpaced the natural water supply in Sungai Pinyuh, Kalimantan Barat. This sub-district, part of the Mempawah Regency, faces challenges such as insufficient access to clean water, deteriorating pipe infrastructure, and environmental pollution affecting water quality. To address these issues, a study has been undertaken to plan a comprehensive development of the drinking water distribution system in Sungai Pinyuh, guided by the Regional Regulation of Mempawah Regency No. 3 of 2014. The planning utilizes EPANET software, a tool developed by the U.S. Environmental Protection Agency (EPA), which allows for the simulation of dynamic conditions in the water distribution system. EPANET helps create detailed maps of the pipe network, determine pump and reservoir locations, and specify pipe characteristics. The software"™s ability to simulate various scenarios, such as changes in demand or disruptions, is crucial for ensuring a reliable water supply. The analysis incorporates primary data from field observations and secondary data from population statistics and existing water supply documents. The proposed distribution system will employ HDPE pipes of various diameters and a pump with a capacity of 200 L/s and a head of 5 meters. Simulation results indicate that the system's velocity, ranging from 0.3 to 0.72 m/s, and other parameters, such as head loss and pressure, are within acceptable limits. Additionally, reservoir capacity planning is based on the maximum daily water demand, with a calculated capacity of approximately 3,347.839 m ³ to ensure adequate supply. This study provides a strategic framework for improving the drinking water distribution system, addressing current deficiencies, and preparing for future needs.
BRACKISH WATER DESALINATION IN SUNGAI ITIK AREA USING REVERSE OSMOSIS (RO) METHOD Setiawan, Eric; Danial, Mochammad Meddy; Purnaini, Rizki; Soeryamassoeka, S. B.
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.61931

Abstract

This research addresses the complexities of treating brackish and seawater from Sungai Itik using Reverse Osmosis (RO), emphasizing advanced pre-treatment methods, hybrid RO systems, and fouling control. Pilot-scale tests confirmed the feasibility of these approaches in meeting clean water standards and balancing economic and environmental sustainability.Using a single ultra-low pressure (ULP) RO membrane, salinity decreased by 57.36%, Total Dissolved Solids (TDS) by 25.76%, and watercolor by 63.25%, achieving improved water quality. Expanding to a ULP and Brackish Water (BW) membrane combination further reduced salinity by 40.63%, TDS by 35.76%, and watercolor by 92.13%, highlighting the benefits of hybrid systems for varied water conditions. In seawater treatment, a ULP membrane reduced salinity by 69.48%, TDS by 93.49%, and watercolor by 97.74%, proving effective for converting seawater to potable or industrial-grade water. Combining ULP and BW membranes achieved salinity reductions of 94.67%, TDS by 94.02%, and watercolor by 34.94%, which is crucial for applications needing ultra-clean water. These findings underscore RO's potential to mitigate water quality challenges and support sustainable water management in diverse environments.
Pengolahan Air Sungai Payau Pasca Proses Elektrokoagulasi Menggunakan Metode Adsorpsi Haq, Rozin Dhiyaul; Purnaini, Rizki; Danial, Mochammad Meddy
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 9, No 3 (2025)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v9i3.34-44

Abstract

Air sungai payau merupakan salah satu air baku yang berpotensi untuk diolah menjadi air bersih. Namun, kadar salinitas yang tinggi menjadi salah satu tantangan air sungai payau untuk dijadikan air bersih. Proses elektrokoagulasi dengan kombinasi adsorpsi menjadi upaya untuk mengolah air sungai payau menjadi air bersih. Penelitian ini bertujuan untuk mengetahui efisiensi penurunan parameter dan waktu tinggal terbaik dari proses pengolahan kombinasi dari elektrokoagulasi dan adsorpsi terhadap air payau di Sungai Itik. Penelitian ini merancang bak elektrokoagulasi dengan kapasitas 135 L dan menggunakan plat aluminium sebagai elektroda sebanyak 5 buah anoda dan 5 buah katoda yang dialiri arus listrik sebesar 2 A dan tegangan 5 V. Selanjutnya, air diolah pada tabung filtrasi dengan proses adsorpsi yang menggunakan adsorben zeolit dan karbon aktif. Air sungai payau pada penelitian ini memiliki kadar salinitas sebesar 3,178 ppm, Total Dissolve Solid (TDS) sebesar 2,924 mg/L, pH sebesar 7.74, dan Kekeruhan sebesar 21.64 NTU. Pengolahan kombinasi elektrokoagulasi dan adsorpsi, kadar parameter Salinitas menjadi 2,824 ppm, Total Dissolve Solid sebesar 2,649 mg/L, pH sebesar 7.95, dan kekeruhan sebesar 3,04 NTU. Dengan demikian, pengolahan kombinasi elektrokoagulasi dan adsorpsi belum efektif dalam memperbaiki kualitas air pada parameter Salinitas dengan persentase efektifitas hanya mencapai 11,14 % dan Total Dissolve Solid (TDS) hanya mencapai 9,40% dan air olahan tersebut juga masih belum memenuhi standar mutu air bersih untuk kebutuhan higiene dan sanitasi.Kata kunci: adsorpsi, air sungai payau, elektrokoagulasi, kualitas air, pengolahan air
ANALISIS SUMBER DAN BEBAN PENCEMAR DI SUNGAI LANDAK BAGIAN HILIR Pramudyaningrum, Retno; Purnaini, Rizki; Saziati, Ochih
Jukung (Jurnal Teknik Lingkungan) Vol 12, No 1 (2026)
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v12i1.25781

Abstract

Sungai Landak bagian hilir memiliki peran penting sebagai sumber air baku sekaligus lokasi berbagai aktivitas masyarakat. Namun, peningkatan jumlah penduduk dan perubahan penggunaan lahan telah menyebabkan bertambahnya beban pencemar yang berdampak pada penurunan kualitas air. Penelitian ini bertujuan untuk mengidentifikasi sumber pencemar, menghitung besaran beban pencemar, serta menilai status mutu air menggunakan metode Indeks Pencemar (IP). Pengambilan sampel dilakukan pada tujuh titik sepanjang 18 km sungai dalam kondisi pasang dan surut, meliputi pengukuran parameter pH, suhu, DO, TDS, BOD, TSS, dan Total Coliform.  Hasil inventarisasi menunjukkan bahwa sumber pencemar berasal dari limbah domestik, aktivitas pertanian, industri, usaha kecil, perhotelan, rumah sakit, tambak ikan, serta galangan kapal. Kontribusi beban pencemar terbesar berasal dari industri kelapa sawit dan karet, dengan total beban BOD sebesar 20.692,18 Kg/Hari dan TSS sebesar 38.026,83 Kg/Hari. Berdasarkan perhitungan IP, kualitas air Sungai Landak bagian hilir umumnya berada pada kategori Cemar Ringan, dengan satu titik menunjukkan kondisi Cemar Sedang saat pasang dan satu titik berada pada kategori Baik saat surut. Temuan ini mencerminkan adanya pengaruh pasang–surut yang memengaruhi distribusi polutan tanpa secara signifikan mengurangi total beban pencemarnya.
Co-Authors Abshar, Khairul Agus Supriadi Almutahar, Syarifah Farah Oktavianda Armelia Aminuddin Aminuddin Ananta, Bagus Verel Anriani, Ayuni Apriani, Isna Aprianti, Amalina Apriyantine, Apriyantine Arditya, Muhammad Kevin Arifin Arifin Arifin Arifin Asbanu, Govira Christiadora Assamady, Ridho Atikah, Ummi Az-Zahra, Hafizha Nurazizah Baringbing, Jefri Alexander Cahwariwasya, Wegi Cahyani, Larasati Dwi Danial, M Meddy Danial, Mochammmad Meddy Desmaiani, Herda Dinanti, Bellinda Dara Dini Arub Arisma Elistiawati, Lusia Fitriana Meilasari Fitrianingsih, Yulisa Haq, Rozin Dhiyaul Hariyulia, Gita Fadani Hendri Sutrisno Indah Permata Sari Indri Pontiani Irda Dwi Utari Irmansyah, Fitri Isna Apriani Isna Apriani Jati, Dian Rahayu jumiati, jumiati - Juniarty, Aulia Yahya Kesia Gus Nengsih Kiki Prio Utomo Larasati, Allisha Mada, Agra Raflesia Putri Marbun, Nency Sesilya Mardhatillah, Lady Cleophila Meideristi Eka Suciutami Mochammad Meddy Danial Muhammad, Vira Fadila Nadeak, Raymond Narazarezcova, Brigitta Pamella Nurhayati Nurhayati Nuriyanti, Chofifah Suci Ochi Saziati Ochih Saziati Ochih Saziati Ochih Saziati Ochih Saziati Pramadita, Suci Pramesti, Ardhea Pramudyaningrum, Retno Pratama, Rizky Agung Putranty Widha Nugraheni Putri, Elga Marlia Ravih Kurniawan Reformasi, Murdiana Erlina Ricka Aprillia Riski, Andi Robby Irsan Saziati, Ochih Sendyvantino, Jepri Septiansyah, Edo Setiawan, Eric Sinaga, Hanna Dewi Sinurat, Merry Ananda Pratiwi Stefanus Barlian Soeryamassoeka Sudarmadji Sudarmadji Sudarmadji Sudarmadji Sudarmadji Sudarmadji Sugeng, Try Kurniadi Sulastri, Aini Surya Pratama Suryo Purwono Syahrul Khairi Teguh, Rahmat Ulli Kadaria Utomo, Kiki Prio Wadiana, Sorasuh Wahyudi Wahyudi Widiya, Widiya Winardi Winardi Y. Fitrianingsih Yenni Andriyani Yulisa Fitrianingsih Zain, Muhammad Zidan