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Journal : Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil

Faktor Penyebab Intrusi Air Laut Terhadap Air Tanah Pada Akuifer Dalam Di Kota Semarang Edy Suhartono; Purwanto Purwanto; Suripin Suripin
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 18, No 2 (2013): WAHANA Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v18i2.980

Abstract

Semarang is a beach city that is potential for sea water intrusion process happened. Correlation to the sustainable development programs in our country especially environment-conservations aspect, it is important to be known, and need to be monitored and controlled.Contamination in land water is a serious probleme, becouse it makes water quality decrease. Sea water intrusion is one of contaminant resources to the land water that cause hight concentration of salt. It is identified by concentration level of chloride (Cl) that come from sea water by mass transportation process of chloride (Cl) to the land water, and so the volume of land water that is fullfill in quality standard limited. Focus of the research is identifying distributions of factor that cause sea water intrusions happened to the land water in inner aquifer in Semarang area. Method of research, by determining of monitoring wells of ESDM service as sample points, continued to measuring concentrations of chloride (Cl) continuously and identifies factor causes the intrusions. To describe the distributions is used the ArcGIS application programs, and to know correlations of chloride’s concentrations to time changes is used correlations statistics test. The result of research showed that sea water intrusions which are identified the chloride (Cl) concentrations and exceeded the quality standard (PERMENKES No. 492/MENKES/PER/IV/2010), in 1992 only one of them, that is monitory wells on STM Perkapalan, north of Semarang. And in 2013, the intrusions happened in 6 (six) areas, those are monitory wells on STM Perkapalan, PRPP, Pelabuhan Tanjung Mas, Simpang Lima, PT Panca Jaya and LIK Kaligawe located in areas of : Kecamatan west of Semarang, nort of Semarang, middle of Semarang and Gayamsari. Factors which cause sea water intrusions are : the increase of populations effects the water reserve decreases to be about 125,7 .106 m3, Land water head changes that caused by descending (sinking) of land , changings of land water surface level from sea level make the distributions of intrusion go to short -east direction, and there is correlation between Chloride’s concentrations level changes to the times changes by the constant of correlations about R = 0,704 to R = 0,997.
Pengaruh Peresapan Air Hujan Menggunakan Lubang Resapan Biopori (LRB) Ashri Febrina Rahmasari; Suripin Suripin; Sudarno Sudarno
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 20, No 1 (2015): WAHANA Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v20i1.139

Abstract

The increasing of quantity and quality of community needs recipitation change the late of land use from green land which function is as water filtration and to make organic compost in LRB as water conservation and handling waste as well. This study is done by making LRB application. Filtration application is taken continues in every 60 minutes and periodic by used by used bucket and organic natural decomposition. Compost used was taken from kitchen waste, leaf litter and mixed of both of them. The density of compost varied from 0,5 kg, 2 kg, and 3 kg per hole. The observation was done in 14 weeks. Infiltration of LRB increased from the first week to nineth week and then decreased until the end of observation (fourteenth week) due to the soil pore had been recharged of water. Maximum infiltrationof LRB with 3 kg of kitchen waste then filtration of LRB with 2 kg og starfruits leaf litter and LRB with 0,5 kg of mixed waste. Infiltration rate for the first maximum were 274,79 l/h, 250,18 l/h, and 239,4 l/h. The effect of LRB was calculated based in the LRB capacity of one LRB can contained of 0,2 ;/d household waste during 20 days with 10 weeks cycle.
Co-Authors ., Muhrozi ., Soebroto Adi Saputra Adika Cakranagara agung fitra siregar Agus Eko Kurniawan, Agus Eko Agus Priyanto Agus Priyanto Ahmad Fauzi Rosandi Ahsan Habib Aji Perdana Wira Utama Alvin Aditya Amir Hadziq Fahmi Andhika Rhama Mahardika Andrean Rahady Juanizar Andreas Tigor Oktaga, Andreas Andrey Suryanto Andung Yunianta Arief Budihardjo, M Arif Kurniawan Ariwibowo, Mohammad Lutfi As'ad, Mohammad Bagus Wiratama Ashri Febrina Rahmasari Aulia Wahyu Rahmawati Bagus Hario Setiadji Baskoro, Ari Yudha Benson Limbong bramantyo herawanto Bramantyo Herawanto Brian Ridhlo Adila Darwin Pakpahan, Darwin Denny Nugroho Sugianto Desyta Ulfiana Dwi Kurniani Dwi Kurniani Dwi Kurniani Dwi Kurniani Dwi Purwantoro Sasongko Dwi Yuliasari Dwitama Aji Putriana Dyah Ari Wulandari Dyah Ari Wulandari Evi Rahmawati Fadilah . Fadilah . Fahmi Anggriawan Yulianto Faqih, Nasyiin Fredy suryanto Hari Budieny Hari Budieny Hari Nugroho Hari Nugroho Harjanti, Widyayuni Nur Hartuti Purnaweni Hartyan, Dionysius Edna Hary Budieny Hary Budieny Hendri Wijaya, Hendri Henny Herawati heru budhi krisnanto Hidayat Pawitan Ignatius Sriyana Ignatius Sriyana intan fauziah ramadhini Iwan K. Hadihardaja Jati Utomo Dwi Hatmoko Joko Windarto Kartini Kartini Khoirul Murod Kikis Dinar Yuliesti Kinathi Fitria Krisma Adijaya Lisa Adatika Luckman Ismail M. Januar J.P. Maknun, Dillon Asmara Martin Martunas Agung P.S. Marupa, Ivan Matias Roy Adi Wijaya, Matias Muchammad Chusni Irfany Muhammad Firqotul Ulum Muhammad Helmi Muhrozi . Nastain Nur Yuwono Nur Yuwono Osfaldo, O Pradnya Paramita Soka Pudyawati Pranoto Samto Atmodjo Prasetyo Hari Wibowo Pratama, Alfyan Amar Priyo Nugroho priyo Nugroho P. Priyo Nugroho Parmantoro Propezite Nurhutama Mustain Purwanto Purwanto Qomaruddin, Mochammad Rahadianti Kusuma Dewi Rarasati, Indang Dewi Ratih Pujiastuti Ricky Zefri Riekea Astika Putri Gultom Rudi Yuniarto Adi Sahat Hamanangan Sinaga Salamun Salamun Salamun Salamun Salamun Salamun Satriyo Pandu Wicaksono Simbolon, Bernas Slamet Hargono Soebroto . Sri Eko Wahyuni Sri Prabandiyani R. Wardani Sri Prabandiyani R. Wardani, Sri Prabandiyani R. Sri Sangkawati Sachro Sri Sangkawati Sachro, Sri Sriyana Sriyana Sudarno Sudarno Sudarno Sudarnoutaomo Sudarnoutaomo Suharyanto Suharyanto Suharyanto Suharyanto Suharyanto SUHARYANTO SUHARYANTO Sukma Adji Nugrahedi Sumbogo Pranoto Suprapto Suprapto surya adi kusuma Suseno Darsono Suseno Darsono Suseno Darsono Sutarto Edhisono Sutrisno Gultom Syafrudin Syafrudin Taruna, Dwiva Anbiya TATI NURHAYATI Taufik Dani Thomas Resa Putra Tri Pambudi, Tri Trias Wigyarianto Vita Ariesta Fitriana Wahyudi Wahyudi Widyayuni Nur Harjanti Wisnu Prianto Zefri, Ricky