Articles
<![CDATA[PENGEMBANGAN SISTEM DATABASE SUMBER DAYA AIR KOTA SAMARINDA ]]>
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Teknologi Lingkungan Vol. 8 No. 3 (2007): JURNAL TEKNOLOGI LINGKUNGAN ]]>
Publisher : <![CDATA[Center for Environmental Technology - Agency for Assessment and Application of Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (301.802 KB)
|
DOI: 10.29122/jtl.v8i3.424
<![CDATA[In order to manage region water resources, Samarinda City has been collecting and managing all data of water resources. Good data management for water resources is needed to maintain water potential and suplay for this city and to control water quality from environmental pollution. The management of the existing water resources is needed by developing computer base structural database management system. The design of database system is used for development of software for water resources database management. The developed software can be used as Decision Support System to help city management and useful for information system to find out the potential of all water resources in Samarina. The output of this activity is software formanaging water resources in Samarinda city.]]>
<![CDATA[Pengembangan Sistem Sampling Air untuk Mengatasi Gangguan Lumpur pada Sistem Online Monitoring Kualitas Air Sungai ]]>
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Teknologi Lingkungan Vol. 20 No. 1 (2019) ]]>
Publisher : <![CDATA[Center for Environmental Technology - Agency for Assessment and Application of Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (871.343 KB)
|
DOI: 10.29122/jtl.v20i1.3078
<![CDATA[ABSTRACTHigh sedimentation and domestic waste that pollute rivers in Indonesia is one of the problems that arise in the application of online water quality monitoring in rivers. This problem can cause a rapid decline in the performance of sensor equipment that can be proven through sensor measurement results and it has shortened the treatment time. To deal with this problem, a water sampling technique is needed on rivers that contain a lot of mud. This study aims to ensure the performance of sensor devices to work optimally, to extend the maintenance time and calibration of the probe device on the sensor. This study developed a direct immersed method of river water sampling and automatic pumping methods by making direct system prototypes and testing of rivers. The results of the tests on the river indicate that the sampling system with the two methods developed can extend sensor maintenance time and produce better data. The sensor treatment period that was initially carried out 2 weeks after immersion, but can be longer between 4 to 6 weeks after immersion.Keywords: river sedimentation, domestic waste, calibration sensor, water sampling system, online monitoring ABSTRAKSedimentasi yang tinggi dan sampah domestik yang mencemari sungai-sungai di Indonesia merupakan salah satu masalah yang muncul pada penerapan pemantauan kualitas air online di sungai. Masalah ini dapat menyebabkan cepat menurunnya kinerja peralatan sensor yang dapat dibuktikan melalui hasil pengukuran sensor dan hal tersebut telah memperpendek waktu perawatannya. Untuk menangani masalah ini diperlukan teknik sampling air pada sungai yang banyak mengandung lumpur. Hal ini bertujuan untuk menjamin kinerja perangkat sensor agar dapat bekerja secara optimal. Selain itu agar dapat memperpanjang waktu perawatan serta kalibrasi perangkat probe pada sensor. Penelitian ini mengembangkan metode sampling air sungai secara langsung (direct immersed) dan metode pemompaan otomatis dengan pembuatan prototipe sistem dan pengujiannya sungai secara langsung. Hasil dari ujicoba di sungai menunjukkan bahwa sistem sampling dengan kedua metode yang dikembangkan dapat memperpanjang waktu perawatan sensor dan menghasilkan data yang lebih baik. Periode perawatan sensor yang semula dilakukan 2 minggu setelah pencelupan dapat menjadi lebih lama antara 4 sampai 6 minggu setelah pencelupan. Kata Kunci : sedimentasi sungai, sampah domestik, kalibrasi probe sensor, sistem sampling air, pemantauan online]]>
<![CDATA[INFORMATION SYSTEM DEVELOPMENT FOR WATER TREATMENT TECHNOLOGY IN DISTRICT PANDEGLANG USING OPEN SOURCE SOFTWARE (OSS) ]]>
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Rekayasa Lingkungan Vol 8, No 1: Jurnal Rekayasa Lingkungan ]]>
Publisher : <![CDATA[BPPT ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (3812.628 KB)
<![CDATA[Clean water needs in almost all regions in Indonesia became a very important thing nowadays, although the areas not experiencing drought. This is due to existing water is no longer eligible for use as daily life water. In some areas the water have been polluted and certain natural conditions make it difficult for population to get their water. Pandeglang district is one of disadvantaged areas that experiencing problems of clean water needs, although this area has water resources are abundant. To help residents in solving this problem, it will be required an information of water treatment technology that can be widely accessed by residents in the Pandeglang district. By using opensource software applications, the information system for water treatment technology can be developed to provide information of appropriate technology needs for solving the problem of providing clean water in Pandeglang.keywords : information system for technology, clean water management, waste water treatment, environmental technology, hypertext document, free open sourcesoftware (OSS).]]>
<![CDATA[FIXED MONITORING SYSTEM FOR MONITORING GAS GENERATED IN WASTE LANDFILL ]]>
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Rekayasa Lingkungan Vol 7, No 3: Jurnal Rekayasa Lingkungan ]]>
Publisher : <![CDATA[BPPT ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (2548.922 KB)
<![CDATA[Gas produced by landfill is bio-gas that has a high concentration of methane that could cause global warming if not controlled. Good management of a landfill in controling the production of methane gas, can be used as an alternative sources of energy to produce electrical energy. Monitoring of methane gas production needs to be done continuously for the energy conversion process can take place perfectly without polluting the environment. Fixed monitoring system described in this paper is the result of design and development including hardware and software of monitoring technology for methane gas to facilitate research in doing observations of a landfill performance.keywords : final disposal, landfill gas, methane, landfill performance, fixed landfill gas monitoring system]]>
<![CDATA[EVALUASI POTENSI SUMBER DAYA AIR DI PROVINSI GORONTALO ]]>
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Air Indonesia Vol. 1 No. 1 (2005): Jurnal Air Indonesia ]]>
Publisher : <![CDATA[Center for Environmental Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.29122/jai.v1i1.2288
<![CDATA[Gorontalo as a new province has many natural resources. One of the natural resource at Gorontalo Province that support society live is water resource. Because of the condition of natural, most of people in Gorontalo Province live as farmer and fisherman. On the other side this new province also has been developing many infrastructures and basic tools for irrigation and watering such as water channel, water dam, irrigation network, etc. The recording process of water resource assets that belong to this new province has been done every year by local government through the Gorontalo Province Water Resources Management Department. The water resource management system is computerized system that able to inventory water resources at Gorontalo Province in two river area development units, so the water resources potential in this province can be retrieved easily and quickly. Katakunci : sumber daya air, prasarana dan sarana air, sistem pengelolaan data, potensi sumber daya air ]]>
<![CDATA[PENGEMBANGAN SISTEM INFORMASI TEKNOLOGI PENGOLAHAN AIR (SITPA) ]]>
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Air Indonesia Vol. 2 No. 1 (2006): Jurnal Air Indonesia ]]>
Publisher : <![CDATA[Center for Environmental Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.29122/jai.v2i1.2292
<![CDATA[Clean water needs and wastewater treatment will be a serious problem for industry especially for food industries. The packet information of applicable technology for water treatment and industrial waste handling that can support any development sector nowadays is needed by any kind of society especially for small and medium enterprise players. To face on globalisation, the computer and information technology will be used as an important tools for distributing the packet of technology from R&D community to any kind of society through global network. By using the existing network infrastructure in the country, the packet information of technology will be distributed electronically specially to help group of small and medium industry. As pilot project, this activity chooses the tahu/tempe industry located in Semanan,JakartaBarat for the industrial centre. By surveying the need of technology, we try to help craftsman to resolve their problem on clean water supply and industrial waste, so they can increase their product quality. Katakunci: air bersih, limbah cair, sistem informasi, internet, hypertext, multimedia]]>
<![CDATA[PERANAN TEKNOLOGI PEMANTAUAN SECARA ONLINE DALAM PENGELOLAAN KUALITAS LINGKUNGAN ]]>
<![CDATA[Wahjono, Heru Dwi]]>;
<![CDATA[Yudo, Satmoko]]>
<![CDATA[ Jurnal Air Indonesia Vol. 2 No. 2 (2006): Jurnal Air Indonesia ]]>
Publisher : <![CDATA[Center for Environmental Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.29122/jai.v2i2.2298
<![CDATA[In global industrial era, more than 70% industrial growth especially in Java will centrally around urban region. This matter can increase the environmental pollution as long as the progress of industry and technology development. Central and regional governments have continued to cope with the environmental pollution problem, although many environmental cases difficult to be resolved. This matter caused by the limited ability of observation technology and monitoring which conducted by the relevant institution and also because of the limited existing fund which allocated for the environment management. To increase the ability of environmental quality observation and monitoring technology in this time, we need the role of information and computation technology which can be used to observe and monitor online the source of pollution that resulting the environmental damages. To support this article we used the data of the case of information technology usage by the environmental institution in Japan.  Katakunci : Online monitoring, pengelolaan Llngkungan perairan, teknologi Informasi dan komputasi, sensor kualitas air. ]]>
<![CDATA[PENGELOLAAN LIMBAH KAWASAN INDUSTRI KECIL DI KOTA TEGAL ]]>
<![CDATA[Setiyono, Setiyono]]>;
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Air Indonesia Vol. 2 No. 2 (2006): Jurnal Air Indonesia ]]>
Publisher : <![CDATA[Center for Environmental Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.29122/jai.v2i2.2303
<![CDATA[Tegal is a maritime town that mostly its resident has living as fisherman. Most existing industry in this town is fishery industry. Besides fishery industry, other small industrial also produce waste water which together with domestic waste water partake to contaminate Gung river, Sibelis river, Kemiri river and other channel which pass through Tegal town. Tegal town government trough the Office Operation of Environmental Impact (KEPADEL) have conducted various effort to reduce the impact of environmental contamination by giving counseling, training and other compilation of book containing information technology and technical guidance of waste water management to industrial activity exist in Tegal. With construction which continues to be conducted by KAPEDAL, we expected that the environmental quality in this town will change with progressively goodness. Kata Kunci : Kawasan Industri, Limbah Cair Industri, Pencemaran Lingkungan, InformasiTeknologi Pengelolaan Limbah.]]>
<![CDATA[RANCANG BANGUN POMPA HIDRAM UNTUK MASYARAKAT PEDESAAN ]]>
<![CDATA[Herlambang, Arie]]>;
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Air Indonesia Vol. 2 No. 2 (2006): Jurnal Air Indonesia ]]>
Publisher : <![CDATA[Center for Environmental Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.29122/jai.v2i2.2309
<![CDATA[Environmental contamination and global climate change cause degradation of fresh water in the whole world. Increasing of oil price also insist the water treatment operational cost rise, especially for pumping and water lifting from the low land areas to up land. One of alternatif solution to reduce operational cost is using Hydraulic ram pumps (hydram pump). Hydram pump are water-lifting devices that are powered by filling water. Such pumps work by using the energy of water falling a small height to lift a small part of that amount of water to a much greater height. In this way, water from a spring or stream in a valley can be pumped to a village or irrigation scheme on the hillside. The main and unique advantage of hydram pumps is that with a continuous flow of water, a hydram pump operates automatically and continuously with no other external energy source - be it electricity or hydrocarbon fuel. It uses a renewable energy source (stream of water) mid hence ensures low running cost. Minimum up lifting vertical power of pump is twice than vertical distance of water down and maximum up lifting vertical power is twenty times than vertical distance of water down.   If there are air captured in distribution pipe, it will need release valve. In this paper, different aspect of designing a hydraulic-rain pump system is discussed. Application and limitation of hydram pump is presented. It imparts absolutely no harm to the environment Hydraulic ram pumps are simple, reliable and require minimal maintenance. All these advantages make hydram pumps suitable to rural community water supply and mud backyard irrigation in developing countries. Kata Kunci : Air bersih pedesaan, pompa hidram, pengelolaan air bersih.]]>
<![CDATA[KONDISI PENCEMARAN LINGKUNGAN PERAIRAN DI TELUK JAKARTA ]]>
<![CDATA[Sachoemar, Suhendar I.]]>;
<![CDATA[Wahjono, Heru Dwi]]>
<![CDATA[ Jurnal Air Indonesia Vol. 3 No. 1 (2007): Jurnal Air Indonesia ]]>
Publisher : <![CDATA[Center for Environmental Technology ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.29122/jai.v3i1.2313
<![CDATA[The environment of the rivers surround Jakarta was polluted due to the increasing of the domestics and industrial waste as response to the rapid development of the anthropogenic activities within the city since the decades. As consequence, the carrying capacity of the water ecosystem was degraded including Jakarta Bay as the estuary of the passing rivers of the Jakarta City. This article briefly discusses the pollution problem within the Jakarta Bay that is supported by the data collected from various sources including the result from in-situ survey. The result has shown the fact of what the causing factors that stimulated the pollution problem within this area.  Katakunci : Pencemaran Lingkungan Perairan. Teluk Jakarta, Pantai Utara Jakarta, Air Limbah Domestik, Beban Pencemaran.]]>
