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All Journal KEAIRAN TEKNIK Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik
Nurandani Hardyanti
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Computer Science & IT Earth & Planetary Sciences Engineering

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EFISIENSI PENURUNAN KEKERUHAN, ZAT ORGANIK DAN AMONIAK DENGAN TEKNOLOGI BIOFILTRASI DAN ULTRAFILTRASI DALAM PENGOLAHAN AIR MINUM (STUDI KASUS: PENGOLAHAN AIR BAKU AIR MINUM PDAM PULO GADUNG) Nurandani Hardyanti; Sudarno utomo; Fikroh Amali
KEAIRAN No 1 TAHUN 13 JULI 2006
Publisher : KEAIRAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.031 KB)

Abstract

Ammonia concentration in raw drinking water at Jakarta varied until 2,0 mg/l, that value has reached out the standard of ammonia (1,5mg/l) according to KepMenkes No 907/MENKES/SK/VII/2002. Ammonia in raw water could react with chlor to be choramine, which have lower disinfecting power. It could make chlor consumption being bigger, beside that presence of THMs and chlorophenol as by product of disinfecting is bigger. This research had done in PDAM Pulo Gadung  from December 2004/ January 2005. The purpose of this research was to know effectively of turbidity, organic matter and ammonia removal in raw drinking water by submerged biofilter using honeycomb tube plastic media and ultrafiltration with hollow fiber membrane processes. The feed water entered into the reactor continuously on aerobic and nonaerobic condition with the varied hydraulic residence time from 5-2 hour then continued with ultrafiltration process. Efficiency of ammonia decreased in nonaerobic condition in bioreactor average between from 41,45 - 70,30% and efficiency in ultrafiltration 34,48 - 38,71%. While in aerobic condition in bioreactor average between 44,04-75,00% and in ultrafiltration 35,00 - 38,89%.
IRIGASI TERKENDALI CERDAS MENGGUNAKAN INTERNET OF THINGS DAN TANTANGAN DALAM MENINGKATKAN EFISIENSI PENGGUNAAN AIR Nurandani Hardyanti; Badrus Zaman; Widi Widayat; Aen Hendrawati; Sandra Anggita Sari; Budihardjo, Mochamad Arief
Prosiding Seminar Nasional Sains dan Teknologi Vol. 15 No. 1 (2025): Prosiding SNST 15 Tahun 2025
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/psnst.v15i1.14878

Abstract

In order to execute sustainable agriculture, an agricultural system is required, particularly an effective and efficient irrigation system, to maximize the use of available water while minimizing water waste. For these reasons, a technological approach is required to implement more efficient irrigation and be environmentally friendly. Smart irrigation systems utilizing data-driven techniques such as the Internet of Things (IoT) that minimize the environmental footprint are one of the current technological approaches on the rise. However, studies on this topic's challenges and prospects have been conducted and still need to be completed. This study aims to provide a more thorough understanding of the use of smart irrigation so that it can be more widely adopted. Recent studies on sophisticated irrigation management principles and smart irrigation monitoring are highlighted. Researchers will be able to use this review to identify directions and gaps for upcoming research activities in this area and monitor and develop control prospects associated with irrigation agriculture. Keyword: Water Use Efficiency, Internet of Things (IoT), Smart Irrigation, Sustainable Agriculture, Irrigation Monitoring and Control
PERANCANGAN AWAL INSTALASI AIR BUANGAN PENDINGIN MENGGUNAKAN MULTISTAGEFLASH RECYLE DISTILLATION (STUDI KASUS PT. INDONESIA POWER PELABUHAN TANJUNG EMAS SEMARANG) Nurandani Hardyanti; Syafrudin Syafrudin; Inri Natalia Inri Natalia
TEKNIK Vol 28, No 1 (2007)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.624 KB) | DOI: 10.14710/teknik.v28i1.2074

Abstract

The port of Tanjung Emas Semarang was located at the coast needed more clean water for shipping,industries and the communities. The production process of PLTU Indonesia Power produced waste wateras cooling water that caused thermal pollution. Considering the quality, quantity, and continuity of thatwaste water used as one of alternative source of clean water. It treated using by multistageflash recycleddistillation method. The purpose of this plant to fulfill clean water for shipping and port of Tanjung Emasarea with production capacity was 50 liters per seconds for duration planning about 15 years. The locationof this plant was next to PT. SRIBOGA with area 8000 m2, wherein the intake on the Canal of PLTUIndonesia Power. In order to fulfill the quality of water, this plant used oil separator and antiscalant aspretreatment. Production cost of distillation plant was Rp 13.647 per m3. This cost was too expensive so itrequired to be done crossed subsidy. The price of clean water was Rp 2000 /m3 for public, Rp 5500 per m3for industries and Rp 3000 per m3 for governmental office.
Co-Authors Aen Hendrawati Badrus Zaman Fikroh Amali Inri Natalia Inri Natalia Mochamad Arief Budihardjo Sandra Anggita Sari Sudarno utomo Syafrudin Syafrudin Widi Widayat