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All Journal JURNAL AIR INDONESIA JURNAL TEKNOLOGI LINGKUNGAN Jurnal Rekayasa Lingkungan
Robertus Haryoto Indriatmoko
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Agriculture, Biological Sciences & Forestry Environmental Science

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PENDUGAAN POTENSI AIR TANAH DENGAN METODA RESISTIVITAS DUA DIMENSI DI WILAYAH PESISIR UNTUK PERENCANAAN PEMBANGUNAN AIR BERSIH DI KABUPATEN PASIR, KALIMANTAN TIMUR Indriatmoko, Robertus Haryoto; Herlambang, Arie
Jurnal Air Indonesia Vol. 1 No. 3 (2005): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.959 KB) | DOI: 10.29122/jai.v1i3.2360

Abstract

Pasir Regency (Tanah Grogot) has coastal areas which is potential economically. To support the development of the area the local government is planning the development of proper and efficient plan to overcome the water  problem of a coastal area. The plan could be implemented by conducting geophysical research and analysis of water quality of existing water resources. Based on this research hopefully an economically proper and efficient plan to develop the potency of existing water resources will be implemented.  Katakunci : Wilayah Pesisir, Dua Dimensi, Geofisik, Akuifer, Air Tanah, Kualitas Air, Kabupaten Pasir,Tanah Grogot
PERCOBAAN APLIKASI PEMBANGKIT GELEMBUNG MIKRO UNTUK MENURUNKAN KANDUNGAN ZAT BESI DALAM AIR TANAH Indriatmoko, Robertus Haryoto; Herlambang, Arie; Nugroho, Rudi
Jurnal Air Indonesia Vol. 10 No. 1 (2018): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.802 KB) | DOI: 10.29122/jai.v10i1.3749

Abstract

Penggunaan air tanah sebagai sumber air bersih untuk digunakan sebagai air minum sering terkendala oleh kualitas air mengandung besi terlarut yang cukup tinggi. Kandungan zat besi diatas 0,3 ppm menyebabkan sumber air tersebut tidak layak digunakan sebagai sumber air baku air bersih dan untuk kandungan besi diatas 0,05 ppm menyebabkan sumber tersebut tidak layak digunakan sebagai sumber air minum.  Air baku dengan kualitas seperti itu sebaiknya dilakukan pengolahan terlebih dahulu.  Air tanah yang berasal dari daerah vulkanik aktif dengan batuannya banyak mengandung zat besi terutama dari daerah yang sering mengalami perendaman air seperti daerah bekas sawah atau bekas rawa. Proses kimiawi yang bekerja di wilayah ini tersebut pada umumnya adalah proses reduksi. Pada umumnya besi yang ada terlarut dalam air adalah sebagai Fe2+ atau Fe3+, dalam ikatan kimia sebagai Fe2O3, Fe(OH)2 Fe(OH)3 ataunFeSO4. Setelah dilakukan ekploitasi atau pengambilan air tanah dan air baku tersebut mengalami kontak langsung dengan udara, maka akan berwana kecoklatan, berbau amis seperti karat besi. Ada tiga cara penurunan zat besi dalam air yaitu dengan cara 1. Aerasi, 2. Sedimentasi dan 3. Filtrasi. Dalam percobaan ini proses penurunan zat besi dilakukan dengan cara aerasi yaitu dengan mengaplikasikan penggunaan gelembung mikro yang dihasilkan dari generator pembangkit gelembung mikro dan dengan filtrasi. Pembangkit gelembung micro ini dibangkitkan oleh pompa KTN Merk Nikuni menghasilkan gelembung udara dengan diameter 20 micron yang digunakan sebagai bahan oksidator untuk air baku mengandung besi. Setelah proses oksidasi berlangsung dalam periode waktu tertentu kemudian disaring dan diukur sisa kandungannya. Hasil percobaanadalah pada kandungan besi dalam air baku sebesar 1,16 ppm yang direaksikan dalam sebuah reactor maka efisiensi oksidasi dapat dicapai dengan baik dan berhasil menambah kelarutan oksigen dalam air sebesar 71-80 % dan menurunkan zat besi dalam air baku sampai mencapai 38-56 % pada pH 7. Kesimpulan yang dapat diambil melalui percobaan ini adalah bahwa generator gelembung mikro mampu digunakan sebagai sebuah cara untuk mengoksidasi zat besi terlarut dalam air baku dan dapat dimanfaatkan sebagai sebuah cara untuk meningkatkan kandungan oksigen terlarut air baku.Kata kunci: air tanah, zat besi terlarut, pembangkit gelembung mikro, oksidasi
MEMBANGUN “SISTEM DINAMIS UNTUK MENGHITUNG DEBIT PUNCAK” (SDDP) DENGAN MENGGUNAKAN STELLA VERSI 9.0.2 (Uji Aplikasi Untuk Wilayah Banjir di Kecamatan Makasar Jakarta Timur) Indriatmoko, Robertus Haryoto
Jurnal Air Indonesia Vol. 5 No. 1 (2009): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (455.252 KB) | DOI: 10.29122/jai.v5i1.2434

Abstract

Peak Discharge Dinamyc System (SDDP) is a program which apply to calculate peak of discharge a catchment area with area and rain fall intensity as parameters, with limited to maximal 50 km2 area and 100 mm/hour rain fall intensity. This program is develop by using System Dinamyc Stella version 9.0.2. Steps taken are, first by calculate runoff cooeficient use Bridge-Branch method and then calculate peak discharge with rational method. This program is tested on sub-catcment Makassar, East Jakarta and compare the result of the program with manual calculation, and concluded that no deviation between those 2 methods, and even more the SDDP program provide prediction of peak discharge with variable C value and data of calculation peak discharge with SDDP program presented in graphic and tabulation as well. Key words : Model, Sistem Dinamis, Stella, Banjir, Debit Puncak, Koefisien Aliran, Prediksi, Jakarta Timur
PENERAPAN PRINSIP KEBIJAKAN ZERO DELTA Q DALAM PEMBANGUNAN WILAYAH Indriatmoko, Robertus Haryoto
Jurnal Air Indonesia Vol. 6 No. 1 (2010): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.18 KB) | DOI: 10.29122/jai.v6i1.2457

Abstract

Principle of zero delta Q policy is that a development should not  increase water discharge to drainage system. Policy of zero delta Q is apply to zone of recharge area and other zone which is not recharge area as well, because this area which is not as recharge area has contribute a great deal to local flood. Based on this therefore implemention of policy of zero delta Q is applied to urban area such as Jakarta. Activities proposed for Jakarta were: 1. Optimize use of water reservoir, pond and site; 2. Implementation of artificial recharge or could be combined with biopore; 3. Effective land use by provide open green areas; and 4. Normalization of drainage system. Keywords : policy, zero delta q, flood, artificial recharge, biopore, development
ANALISIS TERHADAP PERUBAHAN SALINITAS AIR TANAH DANGKAL PADA SISTEM AKUIFER TAK TERTEKAN CEKUNGAN JAKARTA Indriatmoko, Robertus Haryoto
Jurnal Air Indonesia Vol. 9 No. 1 (2016): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (590.86 KB) | DOI: 10.29122/jai.v9i1.2474

Abstract

The study on ground water salinity changes in unconfine aquifer system, is the study of hydrostatic equilibrium between the fresh ground water and salty ground water, aquifer unconfine restricted to coastal. The main objective of the aspects examined, namely: (i) To identify the level of intrusion of sea water in the basin aquifer system taktertekan Jakarta. The purpose and methodology of the study are as follows: (i) The primary data (1995-2009) and secondary (2010), including salinity data attributes, including ground water level, coordinates (UTM) and groundwater salinity levels (ii). Regression analysis of the relationship between the data (EC, Cl- and TDS). (Iii). Analysis of the period 1995-2010 salinity map using GIS and graphic analysis. (Iv). The focus of the analysis in three zones transection (ZT), namely ZT-I west, ZT-II central and eastern ZT-III was unconfine aquifer system in the Jakarta basin. The conclusion of this study are: (i) Variable Cl- and TDS have a strong correlation to predict EC using the following equation Y = 3.45 X + 517.80 (R2 = 0.88) for the DHL and TDS = 1, 86 X + 132.86 (R2 = 0.99) , (ii) based on the results of the analysis of the level of sea water intrusion during the period 1995-2010 (15 years), the intrusion of sea water has reached 8 km from the coast in the ZT-III, in ZT-II reaches 5 km and at ZT-I at 4.8 km from the coastal. Analysis of the development of the distance from shore limit saltwater intrusion since 1982 for 28 years can be calculated that the rate of salt water intrusion in the transection zone I is 0.1 km/year, the transection zone II is 0.06 km/year and in the zone transecting III is 0.11 km/year. The main cause of major intrusion of sea water into the aquifer system of the mainland is the amount of groundwater pumping against excessive.Keywords :  salt water intrusion, unconfine aquifer, aquifer system, Jakarta basin, recharge, salinity, electrical conductivity.
APLIKASI IPAL BIOFILTER PADA PENGOLAHAN AIR LIMBAH INDUSTRI MAKANAN (KAPASITAS 75 M3/HARI) Indriatmoko, Robertus Haryoto; Ikbal, Ikbal; Nugroho, Rudi; Setiyono, Setiyono
Jurnal Air Indonesia Vol. 10 No. 2 (2018): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1035.234 KB) | DOI: 10.29122/jai.v10i2.3763

Abstract

Air limbah industri makanan berkontribusi signifikan terhadap pencemaran lingkungan. Air limbah, terutama dari mencuci bahan baku, kegiatan memasak dan mencuci peralatan produksi. Polutan utama dalam air limbah adalah senyawa organik seperti karbohidrat, minyak, lemak, dan protein. PT. EBI adalah salah satu produsen makanan cepat saji, yang berlokasi di Ciracas, Jarkata Timur. Untuk mengolah air limbah mereka, pada awalnya PT. EBI menggunakan WWTP Lumpur Aktif. Semakin meningkat kegiatan produksinya, jumlah air limbah yang dihasilkan juga bertambah. Akibatnya, IPAL yang ada tidak dapat mengolah air limbah, ditandai dengan penurunan kualitas produk yang diproses IPAL. Untuk mengatasi masalah ini, PT. EBI melakukan renovasi IPAL, yaitu mengganti IPAL Lumpur Aktif dengan IPA Biofiler. Inovasi ini memberikan hasil yang sangat positif. Kualitas produk olahan WWTP jauh lebih baik dan Standar Kualitas selalu terpenuhi. Hasil WWTP baru, konsentrasi polutan TSS menurun dari 340 mg / l menjadi 20 mg / l atau efisiensi pengobatan mencapai 94%, konsentrasi KMnO4 menurun dari 883 mg / l menjadi 50 mg / l (efisiensi, 94%), konsentrasi COD turun dari 1.654 mg / l menjadi 75 mg / l (efisiensi, 95%) dan konsentrasi BOD5 turun dari 392 mg / l menjadi 35 mg / l (efisiensi, 91%). Hasil ini menunjukkan bahwa IPAL Biofilter juga sangat efektif digunakan untuk mengolah air limbah industri makanan.Kata kunci: Air limbah indutri makanan, instalasi pengolahan air limbah, biofilter, Baku Mutu Air Limbah
PENGELOLAAN AIR TANAH DAN INTRUSI AIR LAUT Herlambang, Arie; Indriatmoko, Robertus Haryoto
Jurnal Air Indonesia Vol. 1 No. 2 (2005): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.077 KB) | DOI: 10.29122/jai.v1i2.2348

Abstract

Coastal Aquifer System of Jakarta consist of unconfined aquifer layers, confined aquifer I and  confined aquifer II.  Resources of  groundwater is very important for Jakarta City, for drinking water, industry, hotel, government offices and various other facility. Important considering of    groundwater resources of Jakarta hence needed an effort to preserve the groundwater and awake its continuity by conducting a system management of groundwater. Model used for the management of groundwater system of aquifer coastal referred as Groundwater Model Simulation and Optimization of Quasi Three Dimension ( OPT-Q3D). Model simulation and optimization represent computer model of quasi-three dimensions with method of finite difference used for the operation of infiltration of sea water. This model can conduct current simulation of groundwater flow, head of fresh water and brine, and describe the movement of interface fresh water and sea water. The model can also make optimization of system aquifer with single or multi layers.  Jakarta Groundwater Basin assumed consist three layers of aquifer separated by impermeable layer. Applying of groundwater simulation model in Jakarta can give information regarding balance of groundwater, head of freshwater, head of  brine, interface brine and freshwater, map of brine distribution and bargain in each; every aquifer. Herein after model optimization will yield various information able to wear upon which consideration to manage the amount of pumping of optimal ground water every area in each layer of aquifer, amount of optimal pumping, optimal freshwater head, head of optimal brine and map of infiltration.  Kata Kunci  : Air Tanah, Pengelolaan, Intrusi Air Laut, Modeling
UJI COBA APLIKASI PEMANENAN AIR HUJAN DAN SUMUR RESAPAN DI WILAYAH BOGOR, DEPOK DAN JAKARTA Herlambang, Arie; Indriatmoko, Robertus Haryoto; Yudo, Satmoko; Samsuhadi, Samsuhadi
Jurnal Air Indonesia Vol. 6 No. 2 (2010): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.667 KB) | DOI: 10.29122/jai.v6i2.2469

Abstract

Areas of Jakarta, Bogor, Tangerang and Bekasi (Greater Jakarta) is an area with high rainfall (2250 -2500 mm/year). The rain that falls in this region often cause flooding problems in the area of rice fields, settlements and even in downtown. Rain is a gift from God to be utilized to the maximum extent possible for everyday purposes. Rain Water Harvesting is an attempt to capture rainwater that falls on the roof. In this study, use of the roof area of about 300 -500 m2. Precipitation that falls on the roof is channeled and put into storage, by first filtering done to reduce the dirt. The volume of rain water storage for each location is 10 m3, medium intensity rain (15-20 mm/h), sufficient to meet the storage within a few hours. Rain Water Reservoir are equipped with water pump which has a capacity of 25 liters/minute, the water can be used for flushing toilets and spraying crops. If Rain Water Reservoir is full, water overflows into the Artificial recharge well. The results of analysis with Kostiokov calculation method used to calculate the infiltration rate of Artificial recharge well and calculate the cumulative volume of infiltration at the Artificial recharge well. Results of tests conducted are as follows: a). In Depok, the infiltration rate of Artificial Recharge Well is about 12 mm/minute and was relatively stable at 140 minute (2 mm/minute). It also has the ability to recharge  450 liters of water in 140 minutes. b). In South Jakarta, the infiltration rate of Artificial Recharge Well is about 11 mm/minute and was relatively stable at 160 minutes (2.5 mm/minute). Artificial Recharge Well has the ability to recharge  480 liters of water  in 160 minutes. c). In Bantarjati, Bogor,  Artificial Recharge Well have the highest capacity, namely 45 mm/minute and was relatively stable at 260 minutes (2.5 mm/minute). Artificial Recharge Well has the ability to recharge 1000 liters of water  in 150 minutes. Rain Water Harvesting Development Efforts and Artificial Recharge Well very useful to overcome inundation in residential areas, especially during heavy rain, because it can reduce the volume of surface water into the channel simultaneously. Keywords : Rain Water Harvesting, Infiltration, Artificial Recharge.
Analisis Debit Puncak untuk Perencanaan Sistem Drainase di Kawasan Teknopark Pelalawan Indriatmoko, Robertus Haryoto
Jurnal Teknologi Lingkungan Vol. 20 No. 2 (2019)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.636 KB) | DOI: 10.29122/jtl.v20i2.3467

Abstract

ABSTRACTA drainage system is an infrastructure that plays an important role for regions such as in Pelalawan technopark. Drainage system design needs to be carried out comprehensively to obtain the results of the predicted regional channel system analysis based on maximum daily rainfall data in the area. Thus, any rain falling in each sub-watershed within the region can be properly flowed, through the channel system in the four main drainages and does not cause flooding in the area. The methodology for the analysis of drainage systems is carried out through 4 comprehensive stages, starting with delineation of the four sub-watersheds in the area and performing sub-watershed morphometry until mapping process of the main drainage system of the Pelalawan technopark area. The results of peak discharge analysis is derived from the calculation of rain plan/predicted rain results in the 25-year return period, the Petarik sub-watershed has value of 158.21 m3/sec, while the Bedaguh Guntung watershed,  the Kahayan sub-watershed, and the Langgam watershed have results about 53.64 m3/dt, 30.56 m3/sec, and 34.16 m3/sec respectively. If the drainage system is to be built in the Technopark area, one main channel must be provided in each sub-watershed with channel capacity by the peak discharge. If the four main channels have been prepared, the Technopark Region will be free of flooding for the planning period from the rain with a 25 year return period.Keyword: Technopark, infiltration, rainfall, return periode, peak discharge, drainage capacity ABSTRAKRancangan sistem  drainase adalah sebuah infrastruktur yang memegang peranan penting termasuk untuk kawasan seperti di teknopark Pelalawan. Perencanaan sistem drainase perlu dilaksanakan dengan baik untuk mendapatkan hasil analisis sistem saluran kawasan yang diprediksi berdasarkan data  hujan hujan harian maksimum dalam kawasan tersebut.  Dengan demikian, setiap hujan  yang jatuh di dalam setiap sub DAS dalam kawasan dapat dialirkan dengan baik, melalui sistem saluran pada keempat drainase utama dan tidak menimbulkan banjir dalam kawasan. Metodologi untuk analisis sistem  drainase, dilakukan melalui 4 tahap yaitu yang dimulai dengan melakukan deliniasi terhadap keempat sub DAS dalam kawasan dan melakukan morfometri sub DAS untuk mendapatkan data luas dari masing-masing sub DAS, kemiringan lereng, koefisien runoff, dan time of consentration (tc). hingga pemetaan sistem drainase utama  kawasan teknopark Pelalawan. Hasil analisis  debit puncak  pada 4 sub DAS  dalam kawasan teknopark yang berasal dari perhitungan hujan rencana/ hujan hasil prediksi pada periode ulang 25 tahun, untuk ke 4 adalah Sub DAS Petarik sebesar 158,21 m3/dt, sub DAS Bedaguh Guntung sebesar 53,64  m3/dt. Sub DAS Kahayan sebesar  30,56 m3/dt  dan  Sub DAS Langgam sebesar 34,16 m3/dt. Apabila dalam kawasan Teknopark tersebut akan dibangun sistem drainase, maka harus disediakan 1 (satu) buah saluran utama di setiap  Sub DAS dengan kapasitas saluran sesuai dengan besarnya sesuai dengan debit puncak. Jika keempat saluran utama tersebut telah disiapkan maka Kawasan Teknopark akan dapat terbebas dari banjir untuk periode perencanaan dari hujan dengan periode ulang 25 tahun.Kata kunci: Teknopark, infiltrasi, hujan, periode ulang, debit puncak, kapasitas saluran
EVALUASI LINGKUNGAN AIR TANAH DI DAS CITARUM HULU Indriatmoko, Robertus Haryoto
Jurnal Teknologi Lingkungan Vol. 5 No. 2 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.952 KB) | DOI: 10.29122/jtl.v5i2.303

Abstract

The catchment area “Citarum” has been being in a very critical condition relating to extremely environmental problems. River water pollution in this catchment is obviously caused by industrial and domestic waste water. Nowadays the pollution load is already too high and the BOD, COD contents exceed the WHO standard. The activity evaluating groundwater environment in the up steam of the catchment area has the objective wich is to monitor the effect of groundwater pollution brought about by decreasing of surface water quality in upstream Citarum. The observed locations are village Suleman, Mekarrahayu, Margarahayu and Nanjung. They are all in Bandung regency. The four observed locations can be as representative for the three parts of upstream Citarum, ie. Upper, middle and lower part. Results of the evaluation are able to described groundwater quality condition, especially in the upstream Citarum cathment area.
Co-Authors Arie Herlambang Heru Dwi Wahjono Imam Setiadi, Imam J, E. Myra. Kristyawan, I Putu Angga Rahardjo, Nugro Rudi Nugroho Samsuhadi Samsuhadi Satmoko Yudo Setiyono Setiyono Shoiful, Ahmad Wahyu Purwanta wahyu purwanta wahyu widayat Wibowo, V. Ery Wiwik Handayani