Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Jurnal Teknik Lingkungan Jurnal Teknik Mesin
Ganjar Samudro
Unknown Affiliation
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Environmental Science Mechanical Engineering

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search

 1 
PENGARUH KADAR AIR TERHADAP HASIL PENGOMPOSAN SAMPAH ORGANIK DENGAN METODE COMPOSTER TUB Sindi Martina Hastuti; Ganjar Samudro; Sri Sumiyati
Jurnal Teknik Mesin Vol 6, No 2 (2017): JTM Edisi Spesial 2017
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v6i2.1190

Abstract

Pengelolaan terhadap sampah harus dilakukan secara menyeluruh agar tidak mencemari lingkungan. Banyaknya pepohonan yang ada di sekitar kita menyebabkan banyaknya sampah daun yang dihasilkan. Sampah daun merupakan salah satu sampah organik yang dapat dijadikan kompos. Pengomposan dapat dilakukan dengan memvariasikan faktor-faktor yang mempengaruhi prosesnya, diantaranya adalah kadar air, ukuran bahan dan metode pengomposan. Tujuan dari penelitian ini adalah untuk menganalisis pengaruh kadar air terhadap pengomposan sampah organik yaitu sampah daun kering dan menentukan kadar air optimum untuk pengomposan sampah organik berupa daun kering. Pengomposan dilakukan dengan menggunakan MOL tetes tebu dan memvariasikan kadar air (kadar air 40%, 50%, 60%). Ukuran bahan dicacah menjadi ukuran 1 cm. Waktu pengomposan berlangsung selama 30 hari menggunakan metode composter tub. Pengukuran suhu, pH dan kadar air dilakukan setiap hari. Berdasarkan hasil penelitian, kadar air yang optimum adalah 50% dengan hasil kadar C-Organik sebesar 31,883%, kadar N-Total sebesar  1,908%, rasio C/N sebesar 16,714, kadar P-Total sebesar 0,162%, dan kadar K-Total sebesar 1,276%. Sedangkan untuk hasil pengujian toksisitas menggunakan uji GI, nilai GI pada kadar air 50% adalah 104,69 yang menunjukkan bahwa kompos bebas toksik, sudah matang dan stabil. Kemudian dari hasil uji mikrobiologi menunjukan bahwa jumlah total koliform yang ada pada kompos tidak lebih dari 1000 MPN/gr yaitu 27 MPN/gr.
STUDI PENURUNAN KONSENTRASI KROMIUM DAN SENG DALAM LIMBAH CAIR ELEKTROPLATING ARTIFICIAL DENGAN METODA ELEKTROKOAGULASI Ryanti Christianna; Ganjar Samudro; Dwi Siwi Handayani
Jurnal Teknik Lingkungan Vol 2, No 3 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.909 KB)

Abstract

Electrocoagulation is selected method to decrease concentration of heavy metal Cr and Zn, because it is easy in operation without using chemical addition that harmful for human. The purpose of this research studied the influence of efficiency toward the loading of concentration and the performance of electrode during electrocoagulation process used on continuous system. This experiment used three types of artificial wastewater, they were waste 1 contained 30.11 mg/L of Cr, 50.61 mg/L of Zn, 50.14 mg/L of Cu, waste 2 contained 41.08 mg/L Cr, 105.30 mg/L Zn, 103.25 mg/L Cu, and waste 3 contained 50.07 mg/L of Cr, 202.58 mg/L of Zn, 208.61 mg/L of Cu. This experiment used aluminum electrode with dimension of 10 cm x 15 cm, voltage of 12 volt, current strength of 5 ampere, and the operating time was 360 minutes by taking sample every 30 minutes.  There was the washing of electrode every 120 minutes to increase the performance of electrode. Based on the research had been obtained the optimum time at each sample was 120 minutes which research up to 97% of efficiency and the optimum time of using electrode was 240 minutes. The best reduction of Zn reached 97.68% with the initial concentration of 50.61mg/L.
STUDI PENURUNAN KONSENTRASI NIKEL DAN TEMBAGA PADA LIMBAH CAIR ELEKTROPLATING DENGAN METODE ELEKTROKOAGULASI Rachmanita Nofitasari; Ganjar Samudro; Junaidi Junaidi
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (320.974 KB)

Abstract

Abstract Electroplating industrial wastewater containing heavy metals that are harmful so that need treatment in order to minimize impact on the environment. Most industries treat their wastewater by coagulation - flocculation. It is easy in the processing but the cost and the resulting large amount of mud, especially in metal-based industries. The experiments were conducted in batches of 1 liter for 120 minutes, direct current of 5 A and a voltage of 3 V at current densities of 40, 50, 60, and 70 mA/cm2 and type electrode Aluminum and Iron. From the experimental values obtained electrocoagulation efficiency is 95% Ni and Cu were 98% in current density 70mA/cm. Comparison between electrocoagulation and coagulation do to get a new alternative technology in electroplating wastewater treatment. In terms of cost and processing electrocoagulation technique has many advantages than coagulation. Therefore the best treatment alternative selection is electrocoagulation
STUDI PENURUNAN KANDUNGAN TOTAL COLIFORM DENGAN MENGGUNAKAN KOMBINASI VERTICAL FLOW ROUGHING FILTER (VRF) DAN HORIZONTAL FLOW ROUGHING FILTER (HRF) PADA AIR BUANGAN DOMESTIK ARTIFISIAL Irma Suryanti; Ganjar Samudro; Sri Sumiyati
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.435 KB)

Abstract

ABSTRACTThis research is aims to reduce the content of total coliform bacteria in domestic wastewater using a combination of vertical flow roughing filter (VRF) and horizontal flow roughing filter (HRF) for each variation of flow rate, the type and the size of filter media. Domestic wastewater influent is used as an artificial wastewater containing total coliform bacteria sample 2400 MPN/100 ml. The results of the best drop reaches 0 MPN/100 ml sample contained in VRF combination with medium-sized fine charcoal filter (10 mm,6mm and 3mm) on the flow rate 0.0926 liters/hour.Variations in discharge and the size of filter media for total coliform bacteria indicates a decrease inversely proportional relationship, where the smaller size of the discharge and the filter media decreased total coliform bacteria. As for the type of filter media, charcoal filter media types work better than gravel to reduce the content of total coliform bacteria.
STUDI PENURUNAN KROMIUM DAN NIKEL DALAM PENGOLAHAN LIMBAH CAIR ELEKTROPLATING DENGAN METODE ELEKTROKOAGULASI Wenny Dwi Retna Prihartanti; Ganjar Samudro; Junaidi Junaidi
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.492 KB)

Abstract

ABSTRACTEnvironmental pollution that caused by electroplating waste disposal into the environment can cause harmful effects for human life. Before it is discharged into the environment need the method to treatment this waste. Electro coagulation is one of the wastewater treatment methods which are interchangeable to treat the electroplating industrial waste. This electroplating waste contain heavy metals such as chromium (Cr), Nickel (Ni) and Copper (Cu). Electro coagulation experiments have been conducted with the independent variable which are the type of plate alumunium (Al) and Iron (Fe), and also Current density 40 mA/cm2, 50 mA/cm2, 60 mA/cm2 and 70 mA/cm2. This study uses a powerful current 5 Amperes, time operation 120 minutes, with the sampling time every 15 minutes, number of plate 4 pieces, 2 cm distance between electrodes. Based on experiments have been conducted that obtained best results at the highest current density removal efficiency of chromium allowance  99,60 % for using iron electrodes. Whereas for nickel removal, the best results at the highest current density removal efficiency of nickel allowance  96,20 % for using alumunium electrodes. Other measurements in this study that may affect the process of electro coagulation include pH, temperature, TSS, TDS and turbidity.
STUDI PENURUNAN BESI (Fe) DAN MANGAN (Mn) DALAM AIR TANAH DENGAN MENGGUNAKAN CLAY FILTER Khairul Amri; Ganjar Samudro; Irawan Wisnu Wardhana
Jurnal Teknik Lingkungan Vol 2, No 4 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.252 KB)

Abstract

The use of groundwater as a source of fresh water to the people would become a problem when it contains of Fe and Mn. This happens because in the ground water there is no directly contact with the air outside and the weathering of rocks, so that Fe and Mn in the ground water is still soluble. Meanwhile the amount of Fe and Mn in the ground is never the same in every location. This case could be some impacts to people’s kidney health. In this study, content of Fe and Mn in the ground water will be reduced by using Clay filter media. This study uses 3 wells water samples character with different level of Fe and Mn in sample A is 0.001 mg / l Fe, 0.16 mg / l Mn, sample is B 0.019 mg / l Fe, 0.05 mg / l Mn, and sample C is 3,242 mg / l Fe, 0.27 mg / l Mn. The height level of water influence to the Clay filter becomes the consideration in this study, they are 50 cm, 100 cm and 150 cm. Clay Filter is operated for 12 hours continuously with taking the reuslt of filtration sampling per 2 hours. Based on the research, this study finds the operating time to decrease the concentration of Fe and Mn with Clay Filter optimally from the three height levels in all kinds of different water samples and its categorization has reached 100% at the fourth hours.
STUDI PENURUNAN KONSENTRASI KHROMIUM DAN TEMBAGA DALAM PENGOLAHAN LIMBAH CAIR ELEKTROPLATING ARTIFICIAL DENGAN METODE ELEKTROKOAGULASI Dewi Masita; Ganjar Samudro; Dwi Siwi Handayani
Jurnal Teknik Lingkungan Vol 2, No 3 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (415.383 KB)

Abstract

Electroplating industries produce wastewater containing heavy metals such as copper and chromium that can pollute the environment because they are toxic and harmful to human health despite a small quantity. However, they require a wastewater treatment that could decrease heavy metal waste. Electrocoagulation is the selected method because it has high ability to treat heavy metals wastewater and the equipment is simply enough. The experiments were conducted with artificial wastewater with varying concentrations of Cr 30, 40 and 50 mg/ l and Cu respectively 50, 100 and 200 mg/l. This study used an electrode type Aluminum (Al) that had distance 1.5 cm each electrode, 5 ampere current strength, sampling time every 30 minutes, time operation 360 minutes with an electrode washing every 120 minutes. From the experimental result had been obtained the best efficiency to reduce Cr and Cu occurred in minute 120 which up to 97 %. Aluminum electrode having saturation began at minute 270.
STUDI PENURUNAN PARAMETER BOD, COD DAN BOD/COD MENGGUNAKAN GABUNGAN VERTICAL ROUGHING FILTER DAN HORIZONTAL ROUGHING FILTER PADA LIMBAH CAIR DOMESTIK ARTIFICIAL Flora Resti Utami; Ganjar Samudro; Sri Sumiyati
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.184 KB)

Abstract

ABSTRACTDomestic wastewater treatment is necessary given the high levels of pollutants such as BOD and COD content. In Indonesia there have been domestic wastewater treatment technology but the application is not yet efficient enough, India and African implement a technology that is roughing filter water treatment using filtration mechanism. This study aims to determine the reduction in BOD, COD and BOD / COD using a combination of vertical roughing filters (VRF) and horizontal roughing filter (HRF) in domestic wastewater. This study uses VRF and HRF series of three variations of flow of 277.7 ml/h, 138.8 ml/h and 92.5 ml/h, three variations of the filter media size, coarse with diametres Ɵ20mm, Ɵ15mm, Ɵ10mm , medium size Ɵ15mm, Ɵ10mm, Ɵ6mm and fine size Ɵ10mm, Ɵ 6mm, Ɵ3mm and two variations of types filter media are gravel and charcoal. From research result obtained a removal parameters of BOD and COD optimum flow variation are 277.7 ml/h for the BOD by 90% eficiency and the variation of flow 138.8 ml/h for removals parameters COD by eficiency 99 %. Variations of filter media types for the removal parameters BOD and COD is gravel, while the optimum filter media size for the parameters BOD is coarse and optimum filter media size for COD is medium.
STUDI PENURUNAN PARAMETER TSS DAN TURBIDITY DALAM AIR LIMBAH DOMESTIK ARTIFISIAL MENGGUNAKAN KOMBINASI VERTICAL ROUGHING FILTER DAN HORIZONTAL ROUGHING FILTER Imaning Tyas Fitri; Ganjar Samudro; Sri Sumiyati
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (236.231 KB)

Abstract

This study used a combination of vertical roughing filter (VRF) and horizontal roughing filter (HRF) to reduce the content of Total Suspended Solid (TSS) and Turbidity in domestic wastewater. Variations study was only performed on the reactor VRF. Variations used of waste water discharge Q1 = 0.2778 l/hr, Q2 = 0.1389 l/hr, and Q3 = 0.0926 l/hr; and types of media used is charcoal and gravel with coarse size (øӨ20-10 mm), medium (Ө15-6 mm), and fine (Ө10-3 mm). Optimum conditions in the reactor decreased TSS and turbidity at small flow rate or Q3 = 0.0926 l/hr, with a charcoal filter media type, the size of the fine filter media (Ө10-3 mm), with an efficiency of 98,58% and 99,71%.
Co-Authors Dewi Masita Dwi Siwi Handayani Flora Resti Utami Imaning Tyas Fitri Irawan Wisnu Wardhana Junaidi Junaidi Khairul Amri Mala Nurilmala Rachmanita Nofitasari Ryanti Christianna Sindi Martina Hastuti Sri Sumiyati Wenny Dwi Retna Prihartanti