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Bieby Voijant Tangahu
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Chemical Engineering, Chemistry & Bioengineering Environmental Science

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STUDI ALIRAN DALAM CONSTRUCTED WETLAND MENGGUNAKAN TANAMAN CYPERUS PAPYRUS DALAM MENGOLAH LINDI Bieby Voijant Tangahu
Purifikasi Vol 7 No 2 (2006): 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.v7.i2.247

Abstract

A simple technology to treat leachate is through the use of constructed wetland system using aquatic plant, Cyperus papyrus. The aims of this study were to determine the efficiency of horizontal and vertical flow system in constructed wetland in removing Total N and Total Solid. The dimension of the reactor was 90×30×50 cm with media height of 40 cm. The media was sand with porosity of 47,91 %, time detention of 1 day and flow of 25 l/day. The concentration variations of N are 100 mg/L and 150 mg/L. In horizontal flow reactor with N concentration of 100 mg/L, the highest efficiency of Total N reduction was 90,52 %, and TS reduction efficiency was 62,77 %. In the vertical flow reactor, the highest efficiency of Total N reduction of 91,24 % was achieved when N concentration was 150 mg/L and efficiency for TS reduction was 64,56 % when N concentration was 100 mg/L.
PERUBAHAN KARAKTERISTIK FISIK FLOK LUMPUR ALUM PADA PENGKONDISIAN GANDA DENGAN POLIMER Bieby Voijant Tangahu
Purifikasi Vol 6 No 1 (2005): 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.v6.i1.263

Abstract

Several alum sludge properties are high water concentration, resistance to mechanical dewatering and hard to be disposed of or handled. Alum sludge is hard to be dewatered because of its physical characteristics, thus it is often conditioned by using polymer to alter its characteristics, so it is easier to be dewatered. This research was aimed to study amphoteric polymer capability to change physical characteristics of flocs in dual conditioning for alum sludge. Dual conditioning using amphoteric polymer, produced flocs with greater size than single conditioning, also high flocs strength and fractal dimension.
PENAMBAHAN INNOVATED MICROORGANISM FERTILIZER (IMF) DALAM PROSES KOMPOSTING AEROBIK IDAA Warmadewanthi; Bieby Voijant Tangahu
Purifikasi Vol 5 No 1 (2004): 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 | Full PDF (206.095 KB) | DOI: 10.12962/j25983806.v5.i1.298

Abstract

This research with adding IMF (Innovated Microorganism Fertilizer) to accelerate a compost maturation process and influence to the compost quality. This research used an anaerobic composting with windrow composting system. The variation of IMF are 0.6, 1.2, 2 and 2.5 L/kg of waste with one control reactor. The parameter used: humidity, temperature, pH, and C/N ratio. The N, P and K was analysed to identify final quality compost. The result show, the optimum dosage was 1.2 L/kg of solid waste with time composting ± 2 weeks. A good result of compost quality from the percentage of N, P and K which valued at 3.14, 0.8 and 1.5.
DESAIN MEDIA FILTER PASIR SILIKA DAN FILTER KARBON AKTIF SEBAGAI TEKNOLOGI PENGOLAHAN AIR TANAH TERCEMAR DI SEKITAR LAHAN BEKAS TPA KEPUTIH Alifa Al Nawiswary; Bieby Voijant Tangahu
Purifikasi Vol 21 No 1 (2022): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v21.i1.431

Abstract

The use of open dumping methods in Indonesia landfills does not have adequate environmental protection facilities. The by-products of landfilling activities, namely leachate gas and water, will accumulate and cause pollution at some time, either during the management process or after activity. Groundwater quality around the former Keputih landfill area has been polluted. This groundwater has not met the quality standards of Permenkes RI No. 32 of 2017 concerning Environmental Health Quality Standards and Water Health Requirements for Sanitary Hygiene Purposes, Swimming Pools, Solus Per Aqua, and Public Baths. The polluted parameters include: TDS (1630 mg/L), turbidity (29.4 NTU), color (173.7 PtCo Units), Fe (2.01 mg/L), Mn (0.76 mg/L), total hardness (621.43 mg/L), detergent (1.27 mg/L) and organic matter (11.4 mg/L). one alternative remediation technology for groundwater contaminated with leachate can use silica sand filter media and activated carbon filters. The selection of alternative remediation technology refers to scoring matrix with the value of maintenance and treatment aspects, capital investment, processing efficiency, operational costs, groundwater recovery time and expert labor requirements. The initial planning of this remediation technology was carried out by determining the treatment capacity with a projected clean water demand of 120% of the average water demand. The remediation technology designed has a capacity of 8,930 L/day. The planned technology design is a shallow well pump, silica sand filter unit, activated carbon filter unit and water reservoir equipped with a backwash pump. The remediation process is carried out in 3 cycles per day. The time of each cycle is 8 hours, with a remediation process time of 80 minutes. The discharge that flows per cycle is 2,970 L/cycle. The SOPs developed are the Technology Operational SOP, maintenance SOP (Chlorine Tablet, Backwash and Sludge Disposal).
PERENCANAAN PENGGUNAAN TANAMAN HIAS UNTUK FITOREMEDIASI RUANGAN DALAM (INDOOR) APARTEMEN DARI PAJANAN PARTIKULAT Elfira Aprilia; Bieby Voijant Tangahu
Purifikasi Vol 21 No 1 (2022): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v21.i1.432

Abstract

Indoor air pollution is a condition of the presence of pollutants whose concentrations can risk causing human health problems. One type of air pollutant that has an impact on health is particulate matter (PM) because it is respirable which triggers respiratory problems. There are several factors that cause the effect of indoor particulate concentrations by apartment residents, which is outdoor factors such as the influence of transportation activities. Phytoremediation is one of the solutions to reduce excess particulates. So that the objectives to be achieved from this planning are to identify particulate exposure in the apartment room, inventory ornamental plants that are suitable in indoor air phytoremediation, and plan the needs of ornamental plants. Particulate concentration measurements were carried out in the apartment room at 3 predetermined unit locations. The selection of apartment rooms by considering the distance from the room to the parking lot as a comparison. After measuring particulate matter, 3 out of 3 units for measuring PM2.5 concentration showed results above the quality standard according to the Minister of Health Regulation No. 1077 of 2011. As for the PM10 measurement, only 1 out of 3 units showed results above the quality standard. Because it has several advantages, to reduce the concentration of particulates in the room, the phytoremediation method using ornamental plants is used. Phytoremediation itself is a method to clean or control contaminants using plants. The need for indoor ornamental plants is planned by considering the level of plants reduction so that the particulate concentration does not exceed the quality standard and is calculated using the approach method. In units A and B, 3 ornamental plants are planned, while unit C only requires 2 ornamental plants to reduce PM2.5 and PM10.
UJI EFEKTIVITAS ECENG GONDOK (Eichhornia crassipes) DAN KAYU APU (Pistia stratiotes) SEBAGAI TUMBUHAN POLISHING TREATMENT UNTUK MENYISIHKAN BOD, COD, DAN TSS PADA LIMBAH CAIR RUMAH POTONG HEWAN Nugraha Yudi Ananta; Bieby Voijant Tangahu
Purifikasi Vol 21 No 1 (2022): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v21.i1.433

Abstract

The concentration of polluted materials contained in slaughterhouse wastewater such as BOD, COD, and TSS can have a negative impact on biota life, resulting in a negative impact on biota life. This study aims to treat slaughterhouse wastewater using the phytoremediation method with water hyacinth and apu wood so as to improve the quality of wastewater that will be discharged into water bodies. The main research was conducted in several stages, namely the propagation stage, acclimatization, range finding test, and main testing. The propagation stage is carried out for 1 month until shoots or second generation plants grow which will be used for the next stage. The acclimatization stage aims to get test plants that have adapted to the new environment. Then the range finding test stage must be carried out to determine the concentration of the test substance that will be used for the main test. The concentrations used are 0%, 5%, 10%, 20%, 40%, and 80% are carried out for 7 days. Then the main testing stage with the parameters analyzed are BOD, COD, and TSS. The result obtained at the range finding test stage show that in cattle slaughterhouse waste water hyacinth can live at a waste concentration of 10%. While apu wood can live at an effluent concentration of 20%. While the results of phytoprocessing show that in the liquid waste of slaughterhouses (cows) the most effective BOD removal in apu wood plants is 300.7 mg/L, the most effective COD removal in apu wood plants is 368 mg/L, and the most effective TSS removal in apu wood is 54.2 mg/L. In slaughterhouse liquid waste (chicken), the most effective BOD removal in apu wood plants is 65.4 mg/L, the most effective COD removal in apu wood plants is 176 mg/L, and the most effective TSS removal in apu wood is 76.8 mg/L.
PHYTOMINING LOGAM Cr, V, DAN Sc YANG DITINGKATKAN SECARA MIKROBIAL : KAJIAN PERAN BIOSTIMULAN INDIGENOUS DALAM PROSES UPTAKE LOGAM OLEH TANAMAN HIAS Muhammad Alif Ramadhani; Bieby Voijant Tangahu; Renaldo Lazuardy; Isni Arliyani
Purifikasi Vol 24 No 1 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i1.500

Abstract

Red mud yang dihasilkan secara global mencapai angka 4 miliar ton per tahun 2020. Red mud mengandung Cr, V dan Sc yang masuk ke dalam kelompok Rare Earth Elements dengan nilai ekonomis yang tinggi. Phytomining menjadi salah satu solusi untuk menangani limbah red mud dengan mengekstrak logam berharga menjadi bentuk bio-ore. Red mud yang digunakan berasal dari PT Indonesia Chemical Alumina di Kabupaten Sanggau, Kalimantan Barat, Indonesia. Tujuan dari penelitian ini untuk menemukan formulasi yang dapat membuat proses phytomining efektif dan efisien. Tanaman yang digunakan adalah Dracaena fragrans. Media tanam memiliki komposisi 90% red mud dengan 10% pupuk kandang serta penambahan bioaugmentasi Bacillus proteolyticus yang merupakan bakteri indigenous red mud. Penelitian ini dilakukan selama 28 hari, dengan pengambilan data berupa pH dan berat basah dan kering pada hari ke-7, 14, 21 dan 28, serta data pendukung berupa Electrical Conductivity (EC) setiap dua hari sekali. Uji Optical Density (OD) dan Total Plate Count (TPC) dilakukan untuk mengetahui kurva pertumbuhan serta pembentukan koloni B. proteolyticus. Ekstraksi logam pada tanah menggunakan reagen EDTANa2 dan aqua regia, sedangkan pada tanaman menggunakan accelerated wet digestion. Hasil OD menunjukkan B. proteolyticus memiliki fase stasioner di jam ke-4 sampai jam ke-6, dengan pembentukan koloni tertinggi 54.000 CFU/mL. Penurunan pH terjadi akibat aktivitas mikroba dan produksi eksudat oleh akar tanaman. Nilai EC yang menurun mengindikasikan penyerapan ion logam bebas sebagai mikronutrien oleh tanaman. Nilai TF D. fragrans tertinggi pada logam Cr yaitu 8,74 di hari ke-7, sedangkan nilai Translocation Factor (TF) logam V dan Sc dalam jangkauan <1.
EFEKTIVITAS PERMEABLE REACTIVE BARRIER (PRB) BERBASIS BIOCHAR TEMPURUNG KELAPA DENGAN PEREKAT SEMEN UNTUK REMEDIASI AIR TERCEMAR LOGAM TIMBAL II (PB2+) Muhammad Ishthilakhul Choiri; Ipung Fitri Purwanti; Bieby Voijant Tangahu; Harmin Sulistiyaning Titah; Mashudi Mashudi; Sarwoko Mangkoedihardjo
Purifikasi Vol 24 No 1 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i1.501

Abstract

Pencemaran air tanah oleh logam berat timbal (Pb) berdampak buruk bagi kesehatan manusia dan lingkungan. Logam berat Pb merupakan salah satu polutan yang disoroti karena bersifat toksik, persisten, dan bioakumulatif. Berbagai metode telah dikembangkan untuk remediasi air tanah tercemar Pb, tetapi sebagian besar memakan biaya yang mahal dan memerlukan waktu yang lama. Sebagai alternatif, teknologi Permeable Reactive Barrier (PRB) menawarkan pendekatan pasif in-situ yang efisien untuk mengurangi kadar logam berat dalam air. Implementasi PRB sudah beberapa kali digunakan dalam mereduksi berbagai kontaminan seperti Cr, Zn, Cu, Pb dan As. Hingga saat ini PRB terus dikembangkan untuk meningkatkan efektivitasnya dalam remediasi air tanah. Penelitian ini bertujuan mengevaluasi efektivitas PRB berbahan biochar tempurung kelapa dengan perekat semen dalam meremediasi air tanah berkadar Pb 100 mg/L dengan memvariasikan ketebalan (2 cm dan 4 cm). Reaktor beraliran vertikal dioperasikan selama 24 jam untuk mengamati performa penyisihan. Hasil menunjukkan bahwa PRB dengan ketebalan 2 cm menghasilkan efisiensi penyisihan tertinggi, yakni 99,9% dalam waktu detensi 6 jam, melalui mekanisme adsorpsi, presipitasi, dan interaksi ionik. Presipitasi Pb(OH)2 berperan penting pada pH basa yang dihasilkan oleh hidrasi semen, meskipun kondisi ini memerlukan pengaturan pH efluen sebelum dilepas ke lingkungan. Temuan ini memberikan dasar ilmiah untuk pengembangan PRB berbasis biochar-semen secara lebih luas, termasuk optimasi media, pengujian skala lapangan, dan penerapan pada sistem pengolahan air tercemar lainnya.
APLIKASI PHYTOMINING DENGAN PENDEKATAN TUMBUHAN-MIKROBA UNTUK REMEDIASI LIMBAH REDMUD Faiza Salsabilla; Bieby Voijant Tangahu; Muhammad Althaf Ryan Akmal; Farras Arafi; Isni Arliyani
Purifikasi Vol 24 No 1 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i1.503

Abstract

Red mud merupakan limbah padat alkalis hasil samping industri pemurnian bauksit. Limbah ini mengandung logam berat seperti kromium (Cr), vanadium (V), dan skandium (Sc) yang bersifat toksik namun juga bernilai ekonomis. Penelitian ini mengkaji pendekatan phytomining berbasis tumbuhan-mikroba untuk meremediasi logam berat dari red mud secara berkelanjutan. Dua jenis tanaman hiperakumulator, Tradescantia pallida dan Philodendron hederaceum, dikombinasikan dengan bakteri Bacillus stercoris dan Chromobacterium piscinae dalam media red mud dan pupuk kandang, untuk menguji efektivitas serapan dan translokasi logam. Penelitian dilakukan selama 28 hari dengan pengukuran parameter biomassa, potential hydrogen (pH), electrical conductivity (EC), serta analisis logam total dan bioavailable menggunakan inductively coupled plasma-optical emission spectroscopy (ICP-OES). Hasil menunjukkan bahwa inokulasi mikroba meningkatkan kepadatan koloni (TPC), pertumbuhan tanaman, serta menurunkan pH dan EC media. T. pallida menunjukkan nilai Translocation Factor (TF) >1 untuk Cr dan V, sedangkan P. hederaceum menunjukkan nilai Bioconcentration Factor (BCF) tinggi untuk Cr (hingga 8,50), mengindikasikan potensi sebagai fitostabilisator. Potensi remediasi untuk Sc masih terbatas karena nilai TF dan BCF <1 pada kedua tanaman. Pendekatan ini menawarkan strategi efektif dan aplikatif dalam pengelolaan red mud berbasis teknologi hijau.
UJI RETANG DOSIS RED MUD SEBAGAI AMANDEMEN TANAH DENGAN KOMBINASI PUPUK KANDANG TERHADAP PERTUMBUHAN TANAMAN SAWI (Brassica juncea) Natasya Febriani Fauziah; Harmin Sulistiyaning Titah; Bieby Voijant Tangahu; Andriyan Yulikasari; Ervin Nurhayati; Isni Arliyani
Purifikasi Vol 24 No 1 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i1.504

Abstract

Pemanfaatan red mud (RM), limbah samping hasil pemurnian bauksit yang bersifat sangat basa, memiliki potensi sebagai amandemen tanah dalam kerangka ekonomi sirkular, meskipun penerapannya masih terkendala oleh pH yang tinggi, kandungan natrium, dan potensi toksisitas logam berat. Penelitian ini bertujuan mengevaluasi rentang toleransi Brassica juncea terhadap variasi dosis RM sebagai manademen yang dikombinasikan dengan pupuk kandang. Uji rentang dosis dilakukan dengan variasi RM sebesar 3%, 5%, 10%, 15%, dan 20% yang dicampurkan dengan tanah kebun dan pupuk kandang (rasio 2:1), serta kontrol berupa tanah kebun. Parameter pertumbuhan (tinggi tanaman, jumlah daun, kandungan klorofil, biomassa basah dan kering) serta karakteristik kimia tanah (kandungan nutrien dan logam) diamati selama 14 hari. Hasil menunjukkan bahwa dosis RM hingga 10% masih mendukung kelangsungan hidup tanaman, sementara dosis 15% dan 20% menyebabkan kematian akibat peningkatan kandungan Cr, V, Ni, dan Sc. Dosis 5% menunjukkan kinerja optimal dengan peningkatan tinggi tanaman sebesar 20%, jumlah daun 25%, kandungan klorofil 53%, dan biomassa kering 156% dibanding kontrol. Kombinasi RM dan pupuk kandang secara sinergis meningkatkan ketersediaan hara (N, P, K) sekaligus menjaga kadar logam berat tetap di bawah ambang batas aman FAO/WHO. Studi ini menunjukkan bahwa RM berpotensi dimanfaatkan sebagai amandemen tanah secara berkelanjutan apabila digunakan dalam dosis terkendali dan dikombinasikan dengan bahan organik. Penelitian ini memberikan dasar ilmiah awal untuk mendukung strategi pemanfaatan limbah industri dalam sistem pertanian berbasis ekonomi sirkular.
Co-Authors Alifa Al Nawiswary Andriyan Yulikasari Elfira Aprilia Ervin Nurhayati Faiza Salsabilla Farras Arafi Harmin Sulistiyaning Titah I.D.A.A Warmadewanthi Ipung Fitri Purwanti Isni Arliyani Mashudi Mashudi Muhammad Alif Ramadhani Muhammad Althaf Ryan Akmal Muhammad Ishthilakhul Choiri Natasya Febriani Fauziah Nugraha Yudi Ananta Renaldo Lazuardy Sarwoko Mangkoedihardjo