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Penerapan Zero Runoff System (ZROS) dan Efektivitas Penurunan Limpasan Permukaan Pada Lahan Miring di DAS Cidanau, Banten Wirasembada, Yanuar Chandra; Setiawan, Budi Indra; Saptomo, Satyanto Krido
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 23, Nomor 2 (2017)
Publisher : Department of Civil Engineering, Diponegoro University

Runoff is one of flood and erosion causal factor in Indonesia. Runoff occurred when rainfall cannot be infiltrated and flowed on the ground surface. Cidanau watershed has quite high rainfall average (2573 mm/year) so it has high runoff potential. Zero Runoff System (ZROS) is one of water conservation way which can infiltrate runoff to the ground using permeation structures. ZROS’s successful parameter in order to decreasing runoff rate can be observed by the soil water content differences before and after ZROS application. Soil water content estimation was conducted by water balance model with and without runoff and then it is compared with soil water content from measuring. The simulation results indicated that soil water content in the research field before and after ZROS application is 0.476 and 0.569 m3/m3 respectively. The simulation is also conducted for past 10 years (2004-2013) and resulted higher soil water content if ZROS were applied. This results indicates that ZROS capable to decrease and permeate runoff to the ground and then increase soil water content level. Water balance model with and without runoff has coefficient of determination (R2) 0.606. It means that this model could simulate the soil water content differences before and after ZROS application valid relatively.

Pendugaan Reliability Waduk Nadra Krenceng PT. Krakatau Tirta Industri Yanuar Chandra Wirasembada; Satyanto Krido Saptomo; Muhamad Budi Saputra
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 2: Agustus 2016
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

The increasing of high population rate, plus there was a new steel industry named PT. Krakatau Posco in Cilegon has made higher demand of clean and raw water. The Volume of Nadra Krenceng reservoir used by PT. Krakatau Tirta Industri is still doubted to fulfill water demand in Cilegon. The purpose of this research to analyze how much the reservoir volume capacity that will always be available and makes the program with Visual Basic Application in Microsoft Excel. The reliability calculation of Nadra Krenceng reservoir was conducted using three methods; F.J Mock, NRECA dependable discharge, and simulation the result of both methods use Weibull Method. The simulation result of Weibull Method shows for F.J Mock dependable discharge with probability of 95%, 90%, 80% and 50% are 5,023,095 m3; 5,733,905 m3; 7,215,525 m3; and 11,600,385 m3 respectively. For NRECA Method simulation, the result with the same series probabilities are 3,831,718 m3; 4,531,326 m3; 5,930,542 m3; and 10,128,191 m3 respectively. The Probabilities used by PT. KTI to guarantee the water availability in Nadra Krenceng reservoir is 80%. To conclude, the available volume of Nadra Krenceng reservoir now 7,215,525 m3 for F.J Mock Method and 5,930,542 m3 for NRECA Method. Both of calculation of water availability of Nadra Krenceng reservoir could achieve good enough accuracy. The R2 values for F.J Mock Methods is 0.685 and 0.653 for NRECA method.

PERENCANAAN TANGKI SEPTIK KOMUNAL DI DESA SUWARU, KECAMATAN PAGELARAN, KABUPATEN MALANG, JAWA TIMUR Teguh Budiaji Setjo; Satyanto Krido Saptomo; Yanuar Chandra Wirasembada
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 3: Desember 2016
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Environmental sanitation problems that occurred in Suwaru is septic tanks build too close to water sources such as wells and domestic waste disposal directly into the river. The purpose of this study is to determine the communal septic tank to achieve optimum and effective placement for the people in Suwaru, while also making the design communal septic tanks and leach fields communal septic tanks. The exact location of the study conducted in Suwaru, Pagelaran, Malang. The communal septic tank designed by four steps. These steps are estimating the population, calculating the dimensions of communal septic tanks, land mapping at the site plan and creating detailed engineering design (DED) of a communal septic tank. Septic tanks planned split into two service areas taking into account the difference in elevation of the service area. According to population projections, draining time (N) 5 years. Dimensions to accommodate the volume of waste that must be provided, with a height assumption of the septic tank is 4.5 m, obtained length is 10 m and width is 5 m to both septic tank.

Hidrokarbon Aromatik Polisiklik pada Lahan Tercemar Limbah Minyak Bumi: Tinjauan Pertumbuhan Mikro-Organisme, Proses Metabolisme dan Biodegradasi Allen Kurniawan; Yanuar Chandra Wirasembada; Indah Mutiara Ningtyas Razaad; Adi Novriansyah; Mohamad Rafi; Agus Jatnika Effendi
Jurnal Ilmu Lingkungan Vol 16, No 1 (2018): April 2018
Publisher : School of Postgraduate Studies, Diponegoro Univer

ABSTRAKHidrokarbon Aromatik Polisiklik (HAP) berasal dari proses alamiah dan limbah antropogenik di lingkungan. HAP merupakan polutan di udara, tanah, dan padatan yang mengendap pada fase cair (sedimen) dan berkembang akibat pembakaran tidak lengkap material organik. Kajian ini berupa studi literatur mengenai informasi secara lebih detil tentang laju kenaikan HAP pada tanah, gambaran umum proses metabolisme, proses biodegradasi HAP melalui keterlibatan mikroorganisme, dan alternatif pengolahan sebagai media teknologi penunjang aktivitas proses degradasi. Proses degradasi HAP dan substrat hidrofobik digunakan untuk membatasi jumlah fase cair terlarut melalui sorbsi, kristalin, dan non-aqueous phase liquid (NAPL) sehingga HAP terlarut menjadi tidak tersedia. Laju peningkatan HAP di dalam tanah terbagi atas tiga fase, yaitu fase eksponensial, fase lanjutan dengan pertumbuhan pseudo-linear, dan fase pseudo-stasioner pada kondisi tidak ideal berdasarkan ciri akses bakteri tersedia dalam jumlah tidak terbatas, dan transportasi substrat adalah homogen. Pada media heterogen, seperti tanah, HAP diserap dalam partikel organik pada pori-pori dengan ukuran kecil sehingga bakteri tanah tidak dapat mengakses HAP. Pada kasus pencemaran dalam skala besar, HAP akan berbentuk semacam tar droplet sehingga membatasi bakteri untuk mendegradasi HAP. Selain bakteri, jenis organisme dan mikroorganisme spesifik pendegradasi HAP dapat ditemukan pada jamur (fungi), cyanobacteria, dan alga.Kata kunci: biodegradasi, hidrokarbon aromatik polisiklik, mikroorganisme, proses metabolisme.ABSTRACTPolycylic Aromatic Hydrocarbons (PAHs) are derived from natural processes and the anthropogenic wastes in the environment. PAHs are pollutants found in the air, soil, and sediments which are developed due to incomplete combustion of the organic materials. This review provides a more detail literature study regarding the microbial growth, the metabolic process, and PAHs microbial biodegradation processes overview. The process of PAHs and the hydrophobic substrate degradation is applied to limit the amount of dissolved aqueous phase through sorption, crystalline, and non-aqueous phase liquid (NAPL) so that the dissolved PAHs are no longer available. microbial growth on PAHs as the sole carbon source can be divided into three phases which are the exponential phase, the advance phase with pseudo-linear growth, and pseudo-stationery phase in a non-ideal condition based on the characteristic of the unlimited bacterial access and the homogenous substrate transport. In the heterogeneous medium, such as soil, PAHs are absorbed into the organic particles of small sized pores so that the PAHs become inaccessible for the soil bacteria. In large scale pollution, the PAHs are in the form of tar droplets which limit the access for soil bacteria to degrade the PAHs. Other than bacteria, the specific organisms and microorganisms to degrade PAHs are found in fungi, cyanobacteria, and algae.Keywords: biodegradation, growth rate, metabolic process, microbial, polycyclic aromatic hydrocarbons.Citation: Kurniawan A., Wirasembada, Y.C., Razaad, I.M.N., Novriansyah, A., Rafi, M., Effendi, A.J.(2018). Hidrokarbon Aromatik Polisiklik pada Lahan Tercemar Limbah Minyak Bumi: Tinjauan Pertumbuhan Mikro-Organisme, Proses Metabolisme dan Biodegradasi, Jurnal Ilmu Lingkungan, 16(1), 9-24, doi:10.14710/jil.16.1.9-24

Pengembangan Konsep Zero Runoff System (ZROS) untuk Optimalisasi Kadar Air Tanah pada Lahan Perkebunan Non Irigasi Yanuar Chandra Wirasembada; Budi Indra Setiawan; Satyanto Krido Saptomo
Jurnal Keteknikan Pertanian Vol. 2 No. 2 (2014): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.02.2.%p

AbstractOn non-irrigated farming land, soil water content was difficult to be maintained in field capacity condition. Zero runoff system (ZROS) attempted to utilize runoff and to convert it to backup soil water content using permeation structures. The objectives of this research was to analyze the changing of soil water content before and after ZROS had been applied and to calculate ZROS effectivity towards infiltrating rainfall. In this research, permeation structures in the research field was usingsilt pit and collector canal. The changing of soil water content before and after ZROS application was calculated by water balance model in therooting zone. The simulation result showed that after ZROS had been applied, the decreasing of soil water content in research field were ranging from -0.001 to -0.009 m3/m3, while before ZROS had been appliedit were ranging from -0.01 to -0.024 m3/m3. Besides that, ZROS also capable to increase soil water content in research field for 25.57%. The increasing of this soil water content was caused by ZROS ability that canhold and infiltrate 51.04% from total rainfall occurredeffectively.Keywords: permeation structure, runoff, soil water content, water balance model, zero runoff systemAbstrakPada lahan non irigasi, kadar air tanah sulit dipertahankan pada kondisi kapasitas lapang dan sangat tergantung pada curah hujan. Zero runoff system (ZROS) berupaya memanfaatkan limpasan permukaan dan mengkonversinya menjadi cadangan air tanahdengan menggunakan bangunan resapan. Penelitian ini bertujuan menganalisis perubahan kadar air tanah sebelum dan sesudah penerapan ZROS serta menghitung efektifitas ZROS dalam meresapkan air hujan. Pada penelitian ini, bangunan resapan yang digunakan berupa rorak dan saluran pengumpul. Perubahan kadar air tanah yang terjadi sebelum dan sesudah diterapkan ZROS dihitung menggunakan model kesetimbangan air di dalam zona perakaran tanaman. Hasil simulasi menunjukkan bahwa setelah diterapkan ZROS, penurunan perubahan kadar air tanah berada pada kisaran -0.001 sampai -0.009 m3/m3 sedangkan sebelum ZROS sebesar -0.01 sampai -0.024 m3/m3. Selain itu, ZROS juga mampu meningkatkan kadar air tanah di lokasi penelitian sebesar 25.57%. Kenaikan kadar air tanah ini disebabkan oleh kemampuan ZROS yang secara efektif menampung dan meresapakan 51.04% dari curah hujan yang terjadi selama periode pengukuranKata Kunci : bangunan resapan, kadar air tanah, limpasan permukaan, model kesetimbangan air, zero runoff system.Diterima: 07 Mei 2014; Disetujui: 19 Agustus 2014

Incorporating Inhibition Effects and Hydrolysis Biokinetics into the Mathematical Model of Anaerobic Fermentation Allen Kurniawan; Yanuar Chandra Wirasembada; Mark L. Sibag; Erizal Erizal; Chusnul Arif
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 1 (2024): March 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i1.26-40

Anaerobic digestion is a well-known biological treatment process. It uses less energy, consumes fewer nutrients, converts organic pollutants into methane gas, and produces a small quantity of biomass. The interactions among the various microbes in this complex biological system need to be better understood, and as a consequence, mathematical models need to be revised. This review discusses the principles of biokinetic models published in the literature on anaerobic fermentation as part of the anaerobic digestion process for waste-activated sludge. Biokinetic models for anaerobic fermentation have been developed to predict cell growth, substrate consumption, and gas production. This exploration delves into the incorporation of the hydrolysis stage, a multi-step process entailing the breakdown of carbohydrates, proteins, and lipids within existing biokinetic models. Because there is no single analytical method for accurately determining the biokinetics of anaerobic fermentation of waste-activated sludge incorporating hydrolysis parameters and inhibition effects are proposed to improve the estimated trends of process variables as a function of the design variables.

Pendugaan Reliability Waduk Nadra Krenceng PT. Krakatau Tirta Industri Wirasembada, Yanuar Chandra; Saptomo, Satyanto Krido; Saputra, Muhamad Budi
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 2: Agustus 2016
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.1.2.101-110

The increasing of high population rate, plus there was a new steel industry named PT. Krakatau Posco in Cilegon has made higher demand of clean and raw water. The Volume of Nadra Krenceng reservoir used by PT. Krakatau Tirta Industri is still doubted to fulfill water demand in Cilegon. The purpose of this research to analyze how much the reservoir volume capacity that will always be available and makes the program with Visual Basic Application in Microsoft Excel. The reliability calculation of Nadra Krenceng reservoir was conducted using three methods; F.J Mock, NRECA dependable discharge, and simulation the result of both methods use Weibull Method. The simulation result of Weibull Method shows for F.J Mock dependable discharge with probability of 95%, 90%, 80% and 50% are 5,023,095 m3; 5,733,905 m3; 7,215,525 m3; and 11,600,385 m3 respectively. For NRECA Method simulation, the result with the same series probabilities are 3,831,718 m3; 4,531,326 m3; 5,930,542 m3; and 10,128,191 m3 respectively. The Probabilities used by PT. KTI to guarantee the water availability in Nadra Krenceng reservoir is 80%. To conclude, the available volume of Nadra Krenceng reservoir now 7,215,525 m3 for F.J Mock Method and 5,930,542 m3 for NRECA Method. Both of calculation of water availability of Nadra Krenceng reservoir could achieve good enough accuracy. The R2 values for F.J Mock Methods is 0.685 and 0.653 for NRECA method.

PERENCANAAN TANGKI SEPTIK KOMUNAL DI DESA SUWARU, KECAMATAN PAGELARAN, KABUPATEN MALANG, JAWA TIMUR Setjo, Teguh Budiaji; Saptomo, Satyanto Krido; Wirasembada, Yanuar Chandra
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 3: Desember 2016
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.1.3.159-173

Environmental sanitation problems that occurred in Suwaru is septic tanks build too close to water sources such as wells and domestic waste disposal directly into the river. The purpose of this study is to determine the communal septic tank to achieve optimum and effective placement for the people in Suwaru, while also making the design communal septic tanks and leach fields communal septic tanks. The exact location of the study conducted in Suwaru, Pagelaran, Malang. The communal septic tank designed by four steps. These steps are estimating the population, calculating the dimensions of communal septic tanks, land mapping at the site plan and creating detailed engineering design (DED) of a communal septic tank. Septic tanks planned split into two service areas taking into account the difference in elevation of the service area. According to population projections, draining time (N) 5 years. Dimensions to accommodate the volume of waste that must be provided, with a height assumption of the septic tank is 4.5 m, obtained length is 10 m and width is 5 m to both septic tank.

Effect of Plate Materials and Operational Parameters on Hybrid Phsyco-Biological Units for Palm Oil Mill Effluent Daffa Aqilla Prayogi; Yudi Chadirin; Yanuar Chandra Wirasembada; Allen Kurniawan
Jurnal Teknik Sipil dan Lingkungan Vol. 11 No. 1: April 2026
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.11.1.77-86

Indonesia’s palm oil industry generates large volumes of palm oil mill effluent (POME) characterized by high organic load and suspended solids, requiring effective treatment. This study evaluates a continuous hybrid system consisting of a kapok fiber(KF) pre-treatment unit, electrocoagulation (EC) reactor, and Moving Bed Biofilm Reactor (MBBR), operated under varying plate materials (Fe, Al, Cu) at 24 V and 10 A. The system treated raw POME (pH 3.4; sCOD 20,796 mg/L; TSS 25,610 mg/L; oil and grease 3,243mg/L) over 10-day operational cycles per condition. Results show that copper electrodes achieved the highest performance, with sCOD removal up to 66% and oil and grease removal up to 81.38%, alongside improved TSS reduction. The KF unit contributed 46–53% oil and grease removal, while EC primarily reduced suspended solids and adjusted pH, supporting stable MBBR performance. The combined configuration highlights the interaction between physicochemical and biological processes, where electrode selectionand pre-treatment significantly influence overall system efficiency. These findings provide insight into optimizing integrated treatment strategies for high-strength POME, although additional polishing steps are still required to meet discharge standards.

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