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KEAIRAN
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Arjuna Subject : -
Articles 2 Documents
 1 
Search results for , issue "No 1 TAHUN 13 JULI 2006" : 2 Documents clear
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

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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%.
PENANGANAN ABRASI PANTAI PASIR MAYANG Salamun Salamun
KEAIRAN No 1 TAHUN 13 JULI 2006
Publisher : KEAIRAN

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Abstract

Seawall or Revetment have been devised to protect coastal or shoreline form  erosion by Waves. The seawall or revetment system must be resist direct wave attack, reduces hydraulic forces on underlying material and constribute to dissipation wave energy. Identifies the main types of seawall or revetment systems, decribes the main prediction methods used to design seawall or revetment armoring and for the first time offer a simple methode to compare design thickness of deferent system. On the field design of seawall or revetment be used at Tourism Area, so type of seawall  or revetment and structure be combined architeture. This Paper is case study Pasir Mayang

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