Heru Dwi Wahjono
Kelompok Teknologi Pengelolaan Air Bersih dan Limbah Cair

Published : 60 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : JURNAL TEKNOLOGI LINGKUNGAN

PENGEMBANGAN SISTEM DATABASE SUMBER DAYA AIR KOTA SAMARINDA Wahjono, Heru Dwi
Jurnal Teknologi Lingkungan Vol. 8 No. 3 (2007): 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 (301.802 KB) | DOI: 10.29122/jtl.v8i3.424

Abstract

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.
Pengembangan Sistem Sampling Air untuk Mengatasi Gangguan Lumpur pada Sistem Online Monitoring Kualitas Air Sungai Wahjono, Heru Dwi
Jurnal Teknologi Lingkungan Vol. 20 No. 1 (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 (871.343 KB) | DOI: 10.29122/jtl.v20i1.3078

Abstract

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