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ITS » Paper and Presentation » Teknik Rekayasa Pengendalian Ling. S2
Posted by aprill@is.its.ac.id at 07/01/2015 16:40:38  •  1076 Views


EVALUASI KELAYAKAN SUMBER AIR BAKU KALI MANGGIS SEBAGAI AIR MINUM STUDI KASUS PDAM KABUPATEN TRENGGALEK

FEASIBILITY EVALUATION OF RAW WATER SOURCE KALIMANGGIS AS A DRINKING WATER CASE STUDY PDAM OF TRENGGALEK DISTRICT

Author :
ISWANTO, HADI ( 3311202818 )




ABSTRAK

Dengan meninjau kekurangan air minum di Kecamatan Watulimo Kabupaten Trenggalek maka telah dibangun unit bronkaptering dan jaringan pipa air baku dari Kementrian Pekerjaan Umum yang di kelola oleh PDAM Kabupaten Trenggalek. Sumber air baku Kali Manggis berasal dari beberapa sumber mata air yang bersatu di Kali Manggis. Debit air dari Kali Manggis sebesar 176 literdetik. Kualitas dari sumber air baku perlu dievaluasi lagi karena PDAM tidak menggunakan water treatment atau pengolaan air dimana air baku dari Kali Manggis langsung didistribusikan ke konsumen tanpa ada pengolahan air terlebih dahulu. Dengan demikian tujuan dari penelitian ini adalah menganalisis dan mengevaluasi kelayakan air baku Kali Manggis sebagai air minum di Kecamatan Watulimo dari aspek teknis finansial dan kesehatan. Hasil dari evaluasi kualitas air baku menunjukkan uji bakteriologi total koliformnya sebesar 500 MPN100 mL jauh di atas kadar yang disyaratkan Permenkes 492MenkesPerIV2010 yaitu dengan total koliform sebesar 0 MPN100 mL. Hasil analisa kebutuhan air minum di Kecamatan Watulimo pada Tahun 2032 didapat total kebutuhan air minum di Kecamatan Watulimo adalah sebesar 83198 literdetik sedangkan besarnya rata-rata penurunan sumber air baku Kali Manggis sebesar 25 jadi pada Tahun 2032 debit air baku Kali Manggis sebesar 105479 literdetik. Dari hasil perhitungan didapat kebutuhan kaporit debit air 10 literdetik sebesar 583 kghari dengan pembubuhan larutan kaporit ke air baku tiap detiknya sebesar 785 ml. Biaya investasi yang diperlukan dalam pembuatan bangunan pagar pengaman bronkaptering dan bagungan desinfeksi sebesar Rp. 241.972.100-. Berdasarkan hasil perhitungan dapat dilihat bahwa harga air setelah ada biaya investasi sebesar Rp. 1.800- m3. Harga ini lebih besar dari harga yang sudah ditentukan oleh PDAM Kabupaten Trenggalek yaitu sebesar Rp. 1.750- m3. Berdasarkan hasil perhitungan nilai IRR pada umur ekonomis 20 tahun adalah 13717 Nilai NPV sebesar Rp. 46.129.917- Nilai BCR sebesar 1036 dan nilai Pay-back Priode adalah 1159 tahun. Di area pelayanan Puskesmas Slawe peyakit diare penyakit kulit infeksi PKI dan penyakit kulit alergi PKA merupakan penyakit 10 sepuluh terbesar dengan kejadian ada rata-rata tiap bulannya. Dan juga adanya bakteri koliform sebesar 1600 MPN100 mL dari hasil uji kualitas air di distribusi hal ini menunjukan bahwa kualitas air di wilayah tersebut buruk.


ABSTRACT

By reviewing the shortage of drinking water in the District Watulimo Trenggalek bronkaptering units have been established and the raw water pipeline from the Ministry of Public Works which is managed by PDAM Psychology. Raw water source Mangosteen Kali comes from several springs that are united in Kali Manggis. Discharge of water from the Kali Mangosteen 176 liters sec. Quality of raw water sources need to be evaluated again because taps are not using the water treatment or water refineries where raw water from Kali Mangosteen distributed directly to consumers without any water treatment first. Thus the aim of this study was to analyze and evaluate the feasibility of raw water for drinking Mangosteen time in Watulimo District of technical financial and health. Results of the evaluation showed kuliatas raw water bacteriological testing total of 500 MPN100 mL koliformnya far above the levels required Permenkes 492MenkesPerIV2010 is the total coliform MPN100 mL of 0. Results of analysis of drinking water in the district in the year 2032 obtained Watulimo total water consumption in the district Watulimo amounted to 83.198 liters sec while the average amount of raw water sources decrease of 2.5 Mangosteen time so the year 2032 raw water discharge time mangosteen for 105.479 liters sec. Obtained from the calculation of water discharge chlorine needs 10 liters second at 5.83 kg day by affixing a solution of chlorine to raw water at 7.85 ml per second. The cost of making the necessary investments in building the security fence broncaptering and disinfection of Rp. 241 972 100 -. Based on calculations it can be seen that the price of water after the investment cost of Rp. 1.800 - m3. The coupling medium is greater than the price set by Terri PDAM is Rp. 1.750 - m3. Based on the calculation of the IRR on the economic life of 20 years is 13.717 NPV of Rp. 46129917 - BCR value of 1.036 and the value of Pay-back period is 11.59 years. In the area of health center services Slawe diarrheal diseases infectious skin diseases PKI and allergic skin diseases PKA is a disease of 10 ten largest with no incidence on average each month. And also the presence of coliform bacteria of 1600 MPN100 mL of water quality test results in the distribution it is addressed that the water quality in the region worse.



Keywordswater treatment; kualitas; klorinasi
 
Subject:  Pemurnian Sewage-- - filtrasi; persediaan air
Contributor
  1. Prof. Dr. Ir. Nieke Karnaningroem, M.Sc.
Date Create: 07/01/2015
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-paper-33121150006768
Collection ID: 33121150006768
Call Number: RTL 628.164 Isw e


Source
Paper and Presentations, Environment Engineering, RTL 628.164 Isw e, 2014

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Copyright @2015 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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